Graph and Data Analytics

<!DOCTYPE html> <html lang="en" dir="ltr" prefix="og: https://ogp.me/ns#" class="no-js"> <head> <meta charset="utf-8" /> <meta name="description" content="PNNL researchers are pioneering data and graph analytics using novel visualization and machine learning techniques to tease out data connections." /> <meta name="keywords" content="Graph and Data Analytics, Data Science & Computing" /> <link rel="canonical" href="https://www.pnnl.gov/graph-and-data-analytics" /> <link rel="image_src" href="https://www.pnnl.gov/sites/default/files/media/image/Machine-Learning.jpg" /> <meta property="og:site_name" content="PNNL" /> <meta property="og:type" content="Research Topic" /> <meta property="og:url" content="https://www.pnnl.gov/graph-and-data-analytics" /> <meta property="og:title" content="Graph and Data Analytics" /> <meta property="og:image" content="https://www.pnnl.gov/sites/default/files/media/image/Machine-Learning.jpg" /> <meta property="og:image:url" content="https://www.pnnl.gov/sites/default/files/media/image/Machine-Learning.jpg" /> <meta property="og:image:type" content="image/jpeg" /> <meta property="og:image:width" content="1500" /> <meta property="og:image:height" content="900" /> <meta property="og:image:alt" content="Machine-Learning" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:description" content="PNNL researchers are pioneering data and graph analytics using novel visualization and machine learning techniques to tease out data connections." /> <meta name="twitter:site" content="@PNNLab" /> <meta name="twitter:title" content="Graph and Data Analytics" /> <meta name="twitter:image" content="https://www.pnnl.gov/sites/default/files/media/image/Machine-Learning.jpg" /> <meta name="twitter:image:alt" content="Machine-Learning" /> <meta name="msvalidate.01" content="4929B4935AFFF75296D95B26EF075022" /> <meta name="facebook-domain-verification" content="7nelq0wikwqwb0kr5hla66xaol01zp" /> <meta name="google-site-verification" content="wEePteTXTZb6GZGMJpTKA2W8luCP4XYSEgGOmqCVy4M" /> <meta name="Generator" content="Drupal 9 (https://www.drupal.org)" /> <meta name="MobileOptimized" content="width" /> <meta name="HandheldFriendly" content="true" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <meta http-equiv="x-ua-compatible" content="ie=edge" /> <link rel="icon" href="/favicon.ico" type="image/vnd.microsoft.icon" /> <title>Graph and Data Analytics | PNNL</title> <link rel="stylesheet" media="all" href="/core/assets/vendor/jquery.ui/themes/base/core.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/assets/vendor/jquery.ui/themes/base/autocomplete.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/assets/vendor/jquery.ui/themes/base/menu.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/ajax-progress.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/autocomplete-loading.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/js.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/sticky-header.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/system-status-counter.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/system-status-report-counters.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/system-status-report-general-info.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/tabledrag.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/tablesort.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/system/components/tree-child.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/themes/stable/css/views/views.module.css?snw8tq" /> <link rel="stylesheet" media="all" href="/core/assets/vendor/jquery.ui/themes/base/theme.css?snw8tq" /> <link rel="stylesheet" media="all" href="/modules/contrib/paragraphs/css/paragraphs.unpublished.css?snw8tq" /> <link rel="stylesheet" media="all" href="//fonts.googleapis.com/css?family=Merriweather:300,400,400i,700,700i|Montserrat:300,300i,400,400i,500,500i,600,600i,700,700i,800,800i" /> <link rel="stylesheet" media="all" href="/themes/gesso/css/styles.css?snw8tq" /> <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","scriptPath":null,"pathPrefix":"","currentPath":"taxonomy\/term\/81","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"gtm":{"tagId":null,"settings":{"data_layer":"dataLayer","include_classes":false,"allowlist_classes":"","blocklist_classes":"","include_environment":false,"environment_id":"","environment_token":""},"tagIds":["GTM-KVQ4F9QJ"]},"gtag":{"tagId":"","consentMode":false,"otherIds":[],"events":[],"additionalConfigInfo":[]},"ajaxPageState":{"libraries":"gesso\/global,google_tag\/gtag,google_tag\/gtag.ajax,google_tag\/gtm,mathjax\/setup,paragraphs\/drupal.paragraphs.unpublished,pnnl_search\/search_auto_submit,system\/base,views\/views.module","theme":"gesso","theme_token":null},"ajaxTrustedUrl":{"\/search":true},"mathjax":{"config_type":1,"config":{"tex2jax":{"inlineMath":[["\\(","\\)"]],"processEscapes":"true"},"showProcessingMessages":"false","messageStyle":"none"}},"user":{"uid":0,"permissionsHash":"6bc1cef48cf6e1936a2b40bd3ff06f72f0b8614be0f87ae13332747351f86af6"}}</script> <script src="/themes/gesso/js/lib/modernizr.min.js?v=3.11.7"></script> <script src="/core/assets/vendor/jquery/jquery.min.js?v=3.6.3"></script> <script src="/core/misc/modernizr-additional-tests.js?v=3.11.7"></script> <script src="/core/misc/polyfills/nodelist.foreach.js?v=9.5.11"></script> <script src="/core/misc/polyfills/element.matches.js?v=9.5.11"></script> <script src="/core/misc/polyfills/object.assign.js?v=9.5.11"></script> <script src="/core/assets/vendor/css-escape/css.escape.js?v=1.5.1"></script> <script src="/core/assets/vendor/es6-promise/es6-promise.auto.min.js?v=4.2.8"></script> <script src="/core/assets/vendor/once/once.min.js?v=1.0.1"></script> <script src="/core/assets/vendor/jquery-once/jquery.once.min.js?v=9.5.11"></script> <script src="/core/misc/drupalSettingsLoader.js?v=9.5.11"></script> <script src="/core/misc/drupal.js?v=9.5.11"></script> <script src="/core/misc/drupal.init.js?v=9.5.11"></script> <script src="/core/assets/vendor/tabbable/index.umd.min.js?v=5.3.3"></script> <script src="/modules/contrib/google_tag/js/gtm.js?snw8tq"></script> <script src="/modules/contrib/google_tag/js/gtag.js?snw8tq"></script> <script src="/core/misc/progress.js?v=9.5.11"></script> <script src="/core/misc/jquery.once.bc.js?v=9.5.11"></script> <script src="/core/assets/vendor/loadjs/loadjs.min.js?v=4.2.0"></script> <script src="/core/modules/responsive_image/js/responsive_image.ajax.js?v=9.5.11"></script> <script src="/core/misc/ajax.js?v=9.5.11"></script> <script src="/core/themes/stable/js/ajax.js?v=9.5.11"></script> <script src="/modules/contrib/google_tag/js/gtag.ajax.js?snw8tq"></script>  <link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png"> <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png"> <link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png"> <link rel="manifest" href="/manifest.json"> <link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5"> <meta name="msapplication-TileColor" content="#da532c"> <meta name="theme-color" content="#ffffff"> </head> <body class="path-taxonomy not-front"> <div class="skiplinks"> <a href="#main" class="skiplinks__link visually-hidden focusable">Skip to main content</a> </div> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-KVQ4F9QJ" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas> <div class="layout-container"> <header class="l-header" role="banner"> <div class="l-constrain"> <div class="l-header__primary"> <div class="l-header__logo"> <a class="site-name" href="https://www.pnnl.gov/" title="Home" rel="home"> <h1 class="site-name__text">PNNL</h1> </a> </div> <div class="l-header__primary-right"> <div class="l-header__utility"> <ul class="menu menu--utility"> <li class="menu__item is-collapsed"> <a href="/about" title="About" class="menu__link is-collapsed" data-drupal-link-system-path="node/158">About</a> </li> <li class="menu__item"> <a href="/news?news%5B0%5D=type%3A994&news%5B1%5D=type%3A165&news%5B2%5D=type%3A24&news%5B3%5D=type%3A23" title="News & Media" class="menu__link" data-drupal-link-query="{"news":["type:994","type:165","type:24","type:23"]}" data-drupal-link-system-path="node/27">News & Media</a> </li> <li class="menu__item is-collapsed"> <a href="https://careers.pnnl.gov/" class="menu__link is-collapsed" title="Careers">Careers</a> </li> <li class="menu__item"> <a href="/events" title="Events" class="menu__link" data-drupal-link-system-path="node/150">Events</a> </li> </ul> <div class="l-header__search"> <div class="site-search"> <form class="vue-pnnl-search" data-drupal-selector="vue-pnnl-search" action="/search" method="get" id="vue-pnnl-search" accept-charset="UTF-8"> <div class="form-item form-item--textfield form-item--id-keyword js-form-item js-form-type-textfield js-form-item-keyword"> <label for="edit-keyword" class="form-item__label"> Search </label> <input class="search-form-autocomplete form-item__text" id="keyword" data-drupal-selector="edit-keyword" type="text" name="keyword" value="" size="64" maxlength="64" placeholder="Search"> </div> <div data-drupal-selector="edit-actions" class="form-actions form-wrapper js-form-wrapper" id="edit-actions"> <input data-drupal-selector="edit-submit" type="submit" id="edit-submit" value="Search" class="button js-form-submit"> </div> </form> </div> </div> <div class="l-header__search__mobile visually-hidden"> <div class="site-search"> <form class="vue-pnnl-search" data-drupal-selector="vue-pnnl-search-2" action="/search" method="get" id="vue-pnnl-search--2" accept-charset="UTF-8"> <div class="form-item form-item--textfield form-item--id-keyword js-form-item js-form-type-textfield js-form-item-keyword"> <label for="edit-keyword--2" class="form-item__label"> Search </label> <input class="search-form-autocomplete form-item__text" id="keyword" data-drupal-selector="edit-keyword" type="text" name="keyword" value="" size="64" maxlength="64" placeholder="Search"> </div> <div data-drupal-selector="edit-actions" class="form-actions form-wrapper js-form-wrapper" id="edit-actions--2"> <input data-drupal-selector="edit-submit" type="submit" id="edit-submit--2" value="Search" class="button js-form-submit"> </div> </form> </div> </div> </div> <div class="l-header__menu"> <ul class="menu menu--main"> <li class="menu__item has-subnav is-active-trail is-expanded"> <span class="menu__link has-subnav is-active-trail is-expanded" title="Research">Research</span> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/scientific-discovery" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/39">Scientific Discovery</a> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/biology" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/93">Biology</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/chemical-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/251">Chemical Biology</a> </li> <li class="menu__item"> <a href="/computational-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/886">Computational Biology</a> </li> <li class="menu__item"> <a href="/ecosystem-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/72">Ecosystem Science</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/human-health" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/157">Human Health</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/cancer-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/243">Cancer Biology</a> </li> <li class="menu__item"> <a href="/exposure-science-pathogen-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/246">Exposure Science & Pathogen Biology</a> </li> <li class="menu__item"> <a href="/metabolic-inflammatory-diseases" class="menu__link">Metabolic Inflammatory Diseases</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/integrative-omics" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/97">Integrative Omics</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/advanced-metabolomics" class="menu__link" data-drupal-link-system-path="taxonomy/term/249">Advanced Metabolomics</a> </li> <li class="menu__item"> <a href="/chemical-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/251">Chemical Biology</a> </li> <li class="menu__item"> <a href="/mass-spectrometry-based-measurement-technologies" class="menu__link" data-drupal-link-system-path="taxonomy/term/253">Mass Spectrometry-Based Measurement Technologies</a> </li> <li class="menu__item"> <a href="/spatial-and-single-cell-proteomics" class="menu__link" data-drupal-link-system-path="taxonomy/term/250">Spatial and Single-Cell Proteomics</a> </li> <li class="menu__item"> <a href="/structural-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/252">Structural Biology</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/microbiome-science" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/103">Microbiome Science</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/biofuels-bioproducts" class="menu__link" data-drupal-link-system-path="taxonomy/term/248">Biofuels & Bioproducts</a> </li> <li class="menu__item"> <a href="/human-microbiome" class="menu__link" data-drupal-link-system-path="taxonomy/term/242">Human Microbiome</a> </li> <li class="menu__item"> <a href="/soil-microbiome" class="menu__link" data-drupal-link-system-path="taxonomy/term/241">Soil Microbiome</a> </li> <li class="menu__item"> <a href="/synthetic-biology" class="menu__link" data-drupal-link-system-path="taxonomy/term/247">Synthetic Biology</a> </li> </ul> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/chemistry" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/42">Chemistry</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/computational-chemistry" class="menu__link" data-drupal-link-system-path="taxonomy/term/1003">Computational Chemistry</a> </li> <li class="menu__item"> <a href="/chemical-separations" class="menu__link" data-drupal-link-system-path="taxonomy/term/2581">Chemical Separations</a> </li> <li class="menu__item"> <a href="/chemical-physics" class="menu__link" data-drupal-link-system-path="taxonomy/term/174">Chemical Physics</a> </li> <li class="menu__item"> <a href="/catalysis" class="menu__link" data-drupal-link-system-path="taxonomy/term/45">Catalysis</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/earth-coastal-science" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/60">Earth & Coastal Sciences</a> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/atmospheric-science" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/884">Atmospheric Science</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/atmospheric-aerosols" class="menu__link" data-drupal-link-system-path="taxonomy/term/964">Atmospheric Aerosols</a> </li> <li class="menu__item"> <a href="/human-earth-system-interactions" class="menu__link" data-drupal-link-system-path="taxonomy/term/891">Human-Earth System Interactions</a> </li> <li class="menu__item"> <a href="/modeling-earth-systems" class="menu__link" data-drupal-link-system-path="taxonomy/term/890">Modeling Earth Systems</a> </li> </ul> </li> <li class="menu__item"> <a href="/coastal-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/75">Coastal Science</a> </li> <li class="menu__item"> <a href="/ecosystem-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/72">Ecosystem Science</a> </li> <li class="menu__item"> <a href="/plant-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/156">Plant Science</a> </li> <li class="menu__item"> <a href="/subsurface-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/69">Subsurface Science</a> </li> <li class="menu__item"> <a href="/terrestrial-aquatics" class="menu__link" data-drupal-link-system-path="taxonomy/term/66">Terrestrial Aquatics</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/materials-sciences" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/48">Materials Sciences</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/materials-extreme-environments" class="menu__link" data-drupal-link-system-path="taxonomy/term/173">Materials in Extreme Environments</a> </li> <li class="menu__item"> <a href="/precision-materials-design" class="menu__link" data-drupal-link-system-path="taxonomy/term/172">Precision Materials by Design</a> </li> <li class="menu__item"> <a href="/science-interfaces" class="menu__link" data-drupal-link-system-path="taxonomy/term/171">Science of Interfaces</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/solid-phase-processing" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/163">Solid Phase Processing</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/cold-spray" class="menu__link" data-drupal-link-system-path="taxonomy/term/1002">Cold Spray</a> </li> <li class="menu__item"> <a href="/friction-stir-welding-processing" class="menu__link" data-drupal-link-system-path="taxonomy/term/999">Friction Stir Welding & Processing</a> </li> <li class="menu__item"> <a href="/shape" class="menu__link" data-drupal-link-system-path="taxonomy/term/998">ShAPE</a> </li> </ul> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/nuclear-particle-physics" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/107">Nuclear & Particle Physics</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/dark-matter" class="menu__link" data-drupal-link-system-path="taxonomy/term/111">Dark Matter</a> </li> <li class="menu__item"> <a href="/flavor-physics" class="menu__link" data-drupal-link-system-path="taxonomy/term/206">Flavor Physics</a> </li> <li class="menu__item"> <a href="/fusion-energy-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/287">Fusion Energy Science</a> </li> <li class="menu__item"> <a href="/neutrino-physics" class="menu__link" data-drupal-link-system-path="taxonomy/term/113">Neutrino Physics</a> </li> </ul> </li> <li class="menu__item"> <a href="/quantum-information-sciences" class="menu__link" data-drupal-link-system-path="taxonomy/term/268">Quantum Information Sciences</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/sustainable-energy" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/41">Sustainable Energy</a> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/electric-grid-modernization" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/53">Electric Grid Modernization</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/emergency-response" class="menu__link" data-drupal-link-system-path="taxonomy/term/65">Emergency Response</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/grid-analytics" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/59">Grid Analytics</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/AGM" class="menu__link" data-drupal-link-system-path="node/56441">AGM Program</a> </li> <li class="menu__item"> <a href="/grid-modeling-tools-and-capabilities" class="menu__link">Tools and Capabilities</a> </li> </ul> </li> <li class="menu__item"> <a href="/grid-architecture" class="menu__link" data-drupal-link-system-path="taxonomy/term/57">Grid Architecture</a> </li> <li class="menu__item"> <a href="/grid-cybersecurity" class="menu__link" data-drupal-link-system-path="taxonomy/term/62">Grid Cybersecurity</a> </li> <li class="menu__item"> <a href="/grid-energy-storage" class="menu__link" data-drupal-link-system-path="taxonomy/term/168">Grid Energy Storage</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/grid-resilience-and-decarbonization" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/892">Grid Resilience and Decarbonization</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/earth-system-modeling" class="menu__link" data-drupal-link-system-path="taxonomy/term/996">Earth System Modeling</a> </li> <li class="menu__item"> <a href="/energy-system-modeling" class="menu__link" data-drupal-link-system-path="taxonomy/term/889">Energy System Modeling</a> </li> </ul> </li> <li class="menu__item"> <a href="/transmission" class="menu__link" data-drupal-link-system-path="taxonomy/term/158">Transmission</a> </li> <li class="menu__item"> <a href="/distribution" class="menu__link" data-drupal-link-system-path="taxonomy/term/55">Distribution</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/energy-efficiency" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/112">Energy Efficiency</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/appliance-and-equipment-standards" class="menu__link" data-drupal-link-system-path="taxonomy/term/261">Appliance and Equipment Standards</a> </li> <li class="menu__item"> <a href="/building-energy-codes" class="menu__link" data-drupal-link-system-path="taxonomy/term/233">Building Energy Codes</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/building-technologies" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/237">Building Technologies</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/advanced-building-controls" class="menu__link" data-drupal-link-system-path="taxonomy/term/661">Advanced Building Controls</a> </li> <li class="menu__item"> <a href="/advanced-lighting" class="menu__link" data-drupal-link-system-path="taxonomy/term/120">Advanced Lighting</a> </li> <li class="menu__item"> <a href="/building-grid-integration" class="menu__link" data-drupal-link-system-path="taxonomy/term/114">Building-Grid Integration</a> </li> </ul> </li> <li class="menu__item is-collapsed"> <a href="/building-and-grid-modeling" class="menu__link is-collapsed">Building and Grid Modeling</a> </li> <li class="menu__item is-collapsed"> <a href="/commercial-buildings" class="menu__link is-collapsed" data-drupal-link-system-path="taxonomy/term/254">Commercial Buildings</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/federal-buildings" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/116">Federal Buildings</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/federal-performance-optimization" class="menu__link" data-drupal-link-system-path="taxonomy/term/266">Federal Performance Optimization</a> </li> <li class="menu__item"> <a href="/resilience-and-security" class="menu__link" data-drupal-link-system-path="taxonomy/term/264">Resilience and Security</a> </li> </ul> </li> <li class="menu__item"> <a href="/grid-resilience-and-decarbonization" class="menu__link" data-drupal-link-system-path="taxonomy/term/892">Grid Resilience and Decarbonization</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/residential-buildings" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/257">Residential Buildings</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/building-america-solution-center" class="menu__link" data-drupal-link-system-path="taxonomy/term/265">Building America Solution Center</a> </li> <li class="menu__item"> <a href="/energy-efficient-technology-integration" class="menu__link" data-drupal-link-system-path="taxonomy/term/259">Energy Efficient Technology Integration</a> </li> <li class="menu__item"> <a href="/home-energy-score" class="menu__link" data-drupal-link-system-path="taxonomy/term/258">Home Energy Score</a> </li> </ul> </li> <li class="menu__item"> <a href="/energy-efficient-technology-integration" class="menu__link" data-drupal-link-system-path="taxonomy/term/259">Energy Efficient Technology Integration</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/energy-storage" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/167">Energy Storage</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/electrochemical-energy-storage" class="menu__link" data-drupal-link-system-path="taxonomy/term/878">Electrochemical Energy Storage</a> </li> <li class="menu__item"> <a href="/flexible-loads-and-generation" class="menu__link" data-drupal-link-system-path="taxonomy/term/879">Flexible Loads and Generation</a> </li> <li class="menu__item"> <a href="/grid-integration-controls-and-architecture" class="menu__link" data-drupal-link-system-path="taxonomy/term/883">Grid Integration, Controls, and Architecture</a> </li> <li class="menu__item"> <a href="/regulation-policy-and-valuation" class="menu__link" data-drupal-link-system-path="taxonomy/term/882">Regulation, Policy, and Valuation</a> </li> <li class="menu__item"> <a href="/science-supporting-energy-storage" class="menu__link" data-drupal-link-system-path="taxonomy/term/880">Science Supporting Energy Storage</a> </li> <li class="menu__item"> <a href="/chemical-energy-storage" class="menu__link" data-drupal-link-system-path="taxonomy/term/881">Chemical Energy Storage</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/environmental-management" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/121">Environmental Management</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/waste-processing" class="menu__link" data-drupal-link-system-path="taxonomy/term/123">Waste Processing</a> </li> <li class="menu__item"> <a href="/radiation-measurement" class="menu__link" data-drupal-link-system-path="taxonomy/term/124">Radiation Measurement</a> </li> <li class="menu__item"> <a href="/environmental-remediation" class="menu__link" data-drupal-link-system-path="taxonomy/term/122">Environmental Remediation</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/fossil-energy" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/94">Fossil Energy</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/subsurface-energy-systems" class="menu__link" data-drupal-link-system-path="taxonomy/term/96">Subsurface Energy Systems</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/carbon-management" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/664">Carbon Management</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/carbon-capture" class="menu__link" data-drupal-link-system-path="taxonomy/term/665">Carbon Capture</a> </li> <li class="menu__item"> <a href="/carbon-storage" class="menu__link" data-drupal-link-system-path="taxonomy/term/667">Carbon Storage</a> </li> <li class="menu__item"> <a href="/carbon-utilization" class="menu__link" data-drupal-link-system-path="taxonomy/term/666">Carbon Utilization</a> </li> </ul> </li> <li class="menu__item"> <a href="/advanced-hydrocarbon-conversion" class="menu__link" data-drupal-link-system-path="taxonomy/term/98">Advanced Hydrocarbon Conversion</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/nuclear-energy" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/100">Nuclear Energy</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/fuel-cycle-research" class="menu__link" data-drupal-link-system-path="taxonomy/term/108">Fuel Cycle Research</a> </li> <li class="menu__item"> <a href="/advanced-reactors" class="menu__link" data-drupal-link-system-path="taxonomy/term/110">Advanced Reactors</a> </li> <li class="menu__item"> <a href="/reactor-operations" class="menu__link" data-drupal-link-system-path="taxonomy/term/104">Reactor Operations</a> </li> <li class="menu__item"> <a href="/reactor-licensing" class="menu__link" data-drupal-link-system-path="taxonomy/term/102">Reactor Licensing</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/renewable-energy" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/71">Renewable Energy</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/solar-energy" class="menu__link" data-drupal-link-system-path="taxonomy/term/83">Solar Energy</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/wind-energy" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/74">Wind Energy</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/wind-resource-characterization" class="menu__link" data-drupal-link-system-path="taxonomy/term/236">Wind Resource Characterization</a> </li> <li class="menu__item"> <a href="/wildlife-and-wind" class="menu__link" data-drupal-link-system-path="taxonomy/term/224">Wildlife and Wind</a> </li> <li class="menu__item"> <a href="/community-values-and-ocean-co-use" class="menu__link" data-drupal-link-system-path="taxonomy/term/2761">Community Values and Ocean Co-Use</a> </li> <li class="menu__item"> <a href="/wind-systems-integration" class="menu__link" data-drupal-link-system-path="taxonomy/term/2716">Wind Systems Integration</a> </li> <li class="menu__item"> <a href="/wind-data-management" class="menu__link" data-drupal-link-system-path="taxonomy/term/225">Wind Data Management</a> </li> <li class="menu__item is-collapsed"> <a href="/distributed-wind" class="menu__link is-collapsed" data-drupal-link-system-path="taxonomy/term/260">Distributed Wind</a> </li> </ul> </li> <li class="menu__item"> <a href="/energy-equity-health" class="menu__link" data-drupal-link-system-path="taxonomy/term/885">Energy Equity & Health</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/marine-energy" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/217">Marine Energy</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/environmental-monitoring-marine-energy" class="menu__link" data-drupal-link-system-path="taxonomy/term/231">Environmental Monitoring for Marine Energy</a> </li> <li class="menu__item"> <a href="/marine-biofouling-and-corrosion" class="menu__link" data-drupal-link-system-path="taxonomy/term/219">Marine Biofouling and Corrosion</a> </li> <li class="menu__item"> <a href="/marine-energy-resource-characterization" class="menu__link" data-drupal-link-system-path="taxonomy/term/239">Marine Energy Resource Characterization</a> </li> <li class="menu__item"> <a href="/testing-marine-energy" class="menu__link" data-drupal-link-system-path="taxonomy/term/230">Testing for Marine Energy</a> </li> <li class="menu__item"> <a href="/blue-economy" class="menu__link" data-drupal-link-system-path="taxonomy/term/218">The Blue Economy</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/hydropower" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/211">Hydropower</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/environmental-performance-hydropower" class="menu__link" data-drupal-link-system-path="taxonomy/term/213">Environmental Performance of Hydropower</a> </li> <li class="menu__item"> <a href="/hydropower-cybersecurity-and-digitalization" class="menu__link" data-drupal-link-system-path="taxonomy/term/214">Hydropower Cybersecurity and Digitalization</a> </li> <li class="menu__item"> <a href="/hydropower-and-electric-grid" class="menu__link" data-drupal-link-system-path="taxonomy/term/212">Hydropower and the Electric Grid</a> </li> <li class="menu__item"> <a href="/materials-science-hydropower" class="menu__link" data-drupal-link-system-path="taxonomy/term/215">Materials Science for Hydropower</a> </li> <li class="menu__item"> <a href="/pumped-storage-hydropower" class="menu__link" data-drupal-link-system-path="taxonomy/term/984">Pumped Storage Hydropower</a> </li> <li class="menu__item"> <a href="/water-hydropower-planning" class="menu__link" data-drupal-link-system-path="taxonomy/term/216">Water + Hydropower Planning</a> </li> </ul> </li> <li class="menu__item"> <a href="/grid-integration-renewable-energy" class="menu__link" data-drupal-link-system-path="taxonomy/term/888">Grid Integration of Renewable Energy</a> </li> <li class="menu__item"> <a href="/geothermal-energy" class="menu__link" data-drupal-link-system-path="taxonomy/term/80">Geothermal Energy</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/transportation" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/86">Transportation</a> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/bioenergy-technologies" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/88">Bioenergy Technologies</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/algal-biofuels" class="menu__link" data-drupal-link-system-path="taxonomy/term/228">Algal Biofuels</a> </li> <li class="menu__item"> <a href="/aviation-biofuels" class="menu__link" data-drupal-link-system-path="taxonomy/term/227">Aviation Biofuels</a> </li> <li class="menu__item"> <a href="/waste-energy-and-products" class="menu__link" data-drupal-link-system-path="taxonomy/term/229">Waste-to-Energy and Products</a> </li> </ul> </li> <li class="menu__item"> <a href="/hydrogen-fuel-cells" class="menu__link" data-drupal-link-system-path="taxonomy/term/92">Hydrogen & Fuel Cells</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/vehicle-technologies" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/90">Vehicle Technologies</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/emission-control" class="menu__link" data-drupal-link-system-path="taxonomy/term/222">Emission Control</a> </li> <li class="menu__item"> <a href="/energy-efficient-mobility-systems" class="menu__link" data-drupal-link-system-path="taxonomy/term/221">Energy-Efficient Mobility Systems</a> </li> <li class="menu__item"> <a href="/lightweight-materials" class="menu__link" data-drupal-link-system-path="taxonomy/term/223">Lightweight Materials</a> </li> <li class="menu__item"> <a href="/vehicle-electrification" class="menu__link" data-drupal-link-system-path="taxonomy/term/220">Vehicle Electrification</a> </li> <li class="menu__item"> <a href="/vehicle-grid-integration" class="menu__link" data-drupal-link-system-path="taxonomy/term/2424">Vehicle Grid Integration</a> </li> </ul> </li> </ul> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/national-security" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/40">National Security</a> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/chemical-biothreat-signatures" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/978">Chemical & Biothreat Signatures</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/contraband-detection" class="menu__link" data-drupal-link-system-path="taxonomy/term/977">Contraband Detection</a> </li> <li class="menu__item"> <a href="/pathogen-science-detection" class="menu__link" data-drupal-link-system-path="taxonomy/term/971">Pathogen Science & Detection</a> </li> <li class="menu__item"> <a href="/explosives-detection" class="menu__link" data-drupal-link-system-path="taxonomy/term/64">Explosives Detection</a> </li> <li class="menu__item"> <a href="/threat-agnostic-biodefense" class="menu__link" data-drupal-link-system-path="taxonomy/term/992">Threat-Agnostic Biodefense</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/cybersecurity" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/43">Cybersecurity</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/discovery-and-insight" class="menu__link" data-drupal-link-system-path="taxonomy/term/267">Discovery and Insight</a> </li> <li class="menu__item"> <a href="/proactive-defense" class="menu__link" data-drupal-link-system-path="taxonomy/term/269">Proactive Defense</a> </li> <li class="menu__item"> <a href="/trusted-systems" class="menu__link" data-drupal-link-system-path="taxonomy/term/270">Trusted Systems</a> </li> </ul> </li> <li class="menu__item"> <a href="/nuclear-material-science" class="menu__link" data-drupal-link-system-path="taxonomy/term/974">Nuclear Material Science</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/nuclear-nonproliferation" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/52">Nuclear Nonproliferation</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/radiological-nuclear-detection" class="menu__link" data-drupal-link-system-path="taxonomy/term/70">Radiological & Nuclear Detection</a> </li> <li class="menu__item"> <a href="/nuclear-forensics" class="menu__link" data-drupal-link-system-path="taxonomy/term/970">Nuclear Forensics</a> </li> <li class="menu__item"> <a href="/ultra-sensitive-nuclear-measurements" class="menu__link" data-drupal-link-system-path="taxonomy/term/987">Ultra-Sensitive Nuclear Measurements</a> </li> <li class="menu__item"> <a href="/nuclear-explosion-monitoring" class="menu__link" data-drupal-link-system-path="taxonomy/term/991">Nuclear Explosion Monitoring</a> </li> <li class="menu__item"> <a href="/global-nuclear-radiological-security" class="menu__link" data-drupal-link-system-path="taxonomy/term/997">Global Nuclear & Radiological Security</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/stakeholder-engagement" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/54">Stakeholder Engagement</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/disaster-recovery" class="menu__link" data-drupal-link-system-path="taxonomy/term/981">Disaster Recovery</a> </li> <li class="menu__item"> <a href="/global-collaborations" class="menu__link" data-drupal-link-system-path="taxonomy/term/982">Global Collaborations</a> </li> <li class="menu__item"> <a href="/legislative-and-regulatory-analysis" class="menu__link" data-drupal-link-system-path="taxonomy/term/983">Legislative and Regulatory Analysis</a> </li> <li class="menu__item"> <a href="/technical-training" class="menu__link" data-drupal-link-system-path="taxonomy/term/56">Technical Training</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/systems-integration-deployment" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/968">Systems Integration & Deployment</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/additive-manufacturing" class="menu__link" data-drupal-link-system-path="taxonomy/term/976">Additive Manufacturing</a> </li> <li class="menu__item"> <a href="/deployed-technologies" class="menu__link" data-drupal-link-system-path="taxonomy/term/990">Deployed Technologies</a> </li> <li class="menu__item"> <a href="/rapid-prototyping" class="menu__link" data-drupal-link-system-path="taxonomy/term/975">Rapid Prototyping</a> </li> <li class="menu__item"> <a href="/systems-engineering" class="menu__link" data-drupal-link-system-path="taxonomy/term/986">Systems Engineering</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/threat-analysis" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/969">Threat Analysis</a> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/advanced-wireless-security" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/980">Advanced Wireless Security</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/5g-security" class="menu__link" data-drupal-link-system-path="taxonomy/term/979">5G Security</a> </li> <li class="menu__item"> <a href="/rf-signal-detection-exploitation" class="menu__link" data-drupal-link-system-path="taxonomy/term/989">RF Signal Detection & Exploitation</a> </li> </ul> </li> <li class="menu__item"> <a href="/climate-security" class="menu__link" data-drupal-link-system-path="taxonomy/term/988">Climate Security</a> </li> <li class="menu__item"> <a href="/grid-resilience-and-decarbonization" class="menu__link" data-drupal-link-system-path="taxonomy/term/892">Grid Resilience and Decarbonization</a> </li> <li class="menu__item"> <a href="/internet-things" class="menu__link" data-drupal-link-system-path="taxonomy/term/972">Internet of Things</a> </li> <li class="menu__item"> <a href="/maritime-security" class="menu__link" data-drupal-link-system-path="taxonomy/term/1004">Maritime Security</a> </li> <li class="menu__item"> <a href="/millimeter-wave" class="menu__link" data-drupal-link-system-path="taxonomy/term/2783">Millimeter Wave</a> </li> </ul> </li> </ul> </li> <li class="menu__item has-subnav is-active-trail is-expanded"> <a href="/data-science-computing" class="menu__link has-subnav is-active-trail is-expanded" data-drupal-link-system-path="taxonomy/term/78">Data Science & Computing</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/artificial-intelligence" class="menu__link" data-drupal-link-system-path="taxonomy/term/208">Artificial Intelligence</a> </li> <li class="menu__item is-active-trail"> <a href="/graph-and-data-analytics" class="menu__link is-active-trail is-active" data-drupal-link-system-path="taxonomy/term/81">Graph and Data Analytics</a> </li> <li class="menu__item"> <a href="/software-engineering" class="menu__link" data-drupal-link-system-path="taxonomy/term/85">Software Engineering</a> </li> <li class="menu__item"> <a href="/computational-mathematics-statistics" class="menu__link" data-drupal-link-system-path="taxonomy/term/89">Computational Mathematics & Statistics</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/high-performance-computing" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="taxonomy/term/160">High-Performance Computing</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/adaptive-autonomous-systems" class="menu__link" data-drupal-link-system-path="taxonomy/term/2782">Adaptive Autonomous Systems</a> </li> </ul> </li> <li class="menu__item"> <a href="/visual-analytics" class="menu__link" data-drupal-link-system-path="taxonomy/term/84">Visual Analytics</a> </li> </ul> </li> <li class="menu__item"> <a href="/lab-objectives" class="menu__link" data-drupal-link-system-path="node/22">Lab Objectives</a> </li> <li class="menu__item"> <a href="/publications-reports" class="menu__link" data-drupal-link-system-path="node/28">Publications & Reports</a> </li> <li class="menu__item"> <a href="/featured-research" class="menu__link" data-drupal-link-system-path="node/68041">Featured Research</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <span class="single-column menu__link has-subnav is-expanded" title="People">People</span> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/inventors" title="Inventors" class="menu__link" data-drupal-link-system-path="node/181">Inventors</a> </li> <li class="menu__item is-collapsed"> <a href="/diversity-inclusion" class="always-collapsed menu__link is-collapsed" title="Diversity" data-drupal-link-system-path="node/169">Diversity, Equity, Inclusion & Accessibility</a> </li> <li class="menu__item"> <a href="/lab-leadership" title="Lab Leadership" class="menu__link" data-drupal-link-system-path="node/170">Lab Leadership</a> </li> <li class="menu__item"> <a href="/senior-research-fellows" class="menu__link" data-drupal-link-system-path="node/1272">Lab Fellows</a> </li> <li class="menu__item"> <a href="/staff-accomplishments" class="menu__link" data-drupal-link-system-path="node/57175">Staff Accomplishments</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <span class="menu__link has-subnav is-expanded" title="Partner with PNNL">Partner with PNNL</span> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/education" title="Education partnerships at PNNL" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="node/171">Education</a> <ul class="menu menu__subnav"> <li class="menu__item is-collapsed"> <a href="/undergraduate-students" class="menu__link is-collapsed" data-drupal-link-system-path="node/270312">Undergraduate Students</a> </li> <li class="menu__item is-collapsed"> <a href="/graduate-students" class="menu__link is-collapsed" data-drupal-link-system-path="node/270313">Graduate Students</a> </li> <li class="menu__item is-collapsed"> <a href="/post-graduate-students" class="menu__link is-collapsed" data-drupal-link-system-path="node/271166">Post-graduate Students</a> </li> <li class="menu__item is-collapsed"> <a href="/university-faculty" class="menu__link is-collapsed" data-drupal-link-system-path="node/270316">University Faculty</a> </li> <li class="menu__item is-collapsed"> <a href="/university-partnerships" class="menu__link is-collapsed" data-drupal-link-system-path="node/270317">University Partnerships</a> </li> <li class="menu__item is-collapsed"> <a href="/k-12-educators-and-students" class="menu__link is-collapsed" data-drupal-link-system-path="node/270314">K-12 Educators and Students</a> </li> <li class="menu__item has-subnav is-expanded"> <a href="/stem-education" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="node/184">STEM Education</a> <ul class="menu menu__subnav"> <li class="menu__item is-collapsed"> <a href="/stem-workforce-development" class="menu__link is-collapsed" data-drupal-link-system-path="node/59318">STEM Workforce Development</a> </li> <li class="menu__item is-collapsed"> <a href="/stem-outreach" class="menu__link is-collapsed" data-drupal-link-system-path="node/59128">STEM Outreach</a> </li> <li class="menu__item"> <a href="/stem-education/meet-team" class="menu__link" data-drupal-link-system-path="node/59130">Meet the Team</a> </li> </ul> </li> <li class="menu__item"> <a href="/internships" class="menu__link" data-drupal-link-system-path="node/168">Internships</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/community" title="Community" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="node/183">Community</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/regional-impact" class="menu__link" data-drupal-link-system-path="node/210451">Regional Impact</a> </li> <li class="menu__item"> <a href="/philanthropy" class="menu__link" data-drupal-link-system-path="node/185">Philanthropy</a> </li> <li class="menu__item"> <a href="/volunteering" class="menu__link" data-drupal-link-system-path="node/187">Volunteering</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <a href="/industry" title="Industry" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="node/175">Industry</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/available-technologies" class="menu__link" data-drupal-link-system-path="node/60928">Available Technologies</a> </li> <li class="menu__item"> <a href="/industry" class="menu__link" data-drupal-link-system-path="node/175">Industry</a> </li> <li class="menu__item is-collapsed"> <a href="/industry-partnerships" class="menu__link is-collapsed" data-drupal-link-system-path="node/182">Industry Partnerships</a> </li> <li class="menu__item"> <a href="/licensing-technology-transfer" class="menu__link" data-drupal-link-system-path="node/60927">Licensing & Technology Transfer</a> </li> <li class="menu__item"> <a href="/entrepreneurial-leave" class="menu__link" data-drupal-link-system-path="node/176">Entrepreneurial Leave</a> </li> <li class="menu__item"> <a href="/available-technologies/visual-intellectual-property-search-comprehensive-searchable-database" class="menu__link" data-drupal-link-system-path="node/272639">Visual Intellectual Property Search (VIPS)</a> </li> </ul> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <span class="menu__link has-subnav is-expanded" title="Facilities">Facilities & Centers</span> <ul class="menu menu__subnav"> <li class="menu__item has-subnav is-expanded"> <a href="/facilities" class="menu__link has-subnav is-expanded" data-drupal-link-system-path="node/50888">All Facilities</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/atmospheric-radiation-measurement-user-facility" title="Atmospheric Radiation Measurement Research Facility" class="menu__link" data-drupal-link-system-path="node/155">Atmospheric Radiation Measurement User Facility</a> </li> <li class="menu__item"> <a href="/electricity-infrastructure-operations-center" class="menu__link" title="Electricity Infrastructure Operations Center " data-drupal-link-system-path="node/108">Electricity Infrastructure Operations Center </a> </li> <li class="menu__item"> <a href="/energy-sciences-center" class="menu__link" title="Energy Sciences Center" data-drupal-link-system-path="node/1377">Energy Sciences Center</a> </li> <li class="menu__item"> <a href="/environmental-molecular-sciences-laboratory" class="menu__link" title="Environmental Molecular Sciences Laboratory" data-drupal-link-system-path="node/154">Environmental Molecular Sciences Laboratory</a> </li> <li class="menu__item"> <a href="/grid-storage-launchpad-pnnl" class="menu__link" title="Grid Storage Launchpad" data-drupal-link-system-path="node/57606">Grid Storage Launchpad</a> </li> <li class="menu__item"> <a href="/institute-integrated-catalysis" class="menu__link" title="Institute for Integrated Catalysis" data-drupal-link-system-path="node/50849">Institute for Integrated Catalysis</a> </li> <li class="menu__item"> <a href="/interdiction-technology-and-integration-laboratory" class="menu__link" title="Interdiction Technology and Integration Laboratory" data-drupal-link-system-path="node/67492">Interdiction Technology and Integration Laboratory</a> </li> <li class="menu__item"> <a href="/portland-research-center" class="menu__link" data-drupal-link-system-path="node/270331">PNNL Portland Research Center</a> </li> <li class="menu__item"> <a href="/seattle-research-center" class="menu__link" title="PNNL Seattle Research Center" data-drupal-link-system-path="node/57328">PNNL Seattle Research Center</a> </li> <li class="menu__item"> <a href="/pnnl-sequim" title="PNNL-Sequim (Marine and Coastal Research)" class="menu__link" data-drupal-link-system-path="node/70405">PNNL-Sequim (Marine and Coastal Research)</a> </li> <li class="menu__item"> <a href="/radiochemical-processing-laboratory" class="menu__link" title="Radiochemical Processing Laboratory " data-drupal-link-system-path="node/110">Radiochemical Processing Laboratory </a> </li> <li class="menu__item"> <a href="/shallow-underground-laboratory" class="menu__link" title="Shallow Underground Laboratory " data-drupal-link-system-path="node/105">Shallow Underground Laboratory</a> </li> </ul> </li> </ul> </li> </ul> </div> </div> </div> </div> </header> <div class="l-highlighted"> <div class="l-constrain"> <div data-drupal-messages-fallback class="hidden"></div> </div> </div> <main id="main" class="main" role="main" tabindex="-1"> <div class="l-preface"> <div class="l-constrain"> </div> </div> <div class="l-content"> <div class="l-sidebar has-sidebar "> <div class="l-constrain"> <div class="l-sidebar__full"> <nav class="breadcrumb " role="navigation" aria-labelledby="breadcrumb-label"> <h2 class="breadcrumb__title visually-hidden" id="breadcrumb-label">Breadcrumb</h2> <ol class="breadcrumb__list"> <li class="breadcrumb__item"> Research </li> <li class="breadcrumb__item"> <a class="breadcrumb__link" href="/data-science-computing">Data Science & Computing</a> </li> <li class="breadcrumb__item"> Graph and Data Analytics </li> </ol> </nav> </div> </div> <div class="l-sidebar__full-bleed"> <div class="l-constrain l-constrain--full-bleed"> <div class="hero-bg-image has-overlay" style="background-image: url(/sites/default/files/styles/banner/public/media/image/NSD_1931_WEB_GraphData_1.jpg?h=d07c593c&itok=_3gr0ZIj);"> <div class="hero-bg-image__content"> <div class="hero-bg-image__content-inner"> <h1 class="hero-bg-image__title"><div class="tex2jax_process"><p>Graph &<br /> Data Analytics</p> </div></h1> <h3 class="hero-bg-image__subtitle"><div class="tex2jax_process"><p>Bringing understanding<br /> to large, disparate data</p> </div></h3> <div class="caption"> <button class="caption__button">Open</button> <div class="caption__text"> <div class="caption__caption"><div class="tex2jax_process"><p> Draguna Vrabie </p></div></div> <div class="caption__credit"><div class="tex2jax_process"><p><em>Andrea Starr | Pacific Northwest National Laboratory</em></p></div></div> </div> </div> </div> </div> </div> </div> </div> <div class="l-constrain"> </div> <div class="l-constrain l-constrain--narrow"> <div class="l-sidebar__wrapper"> <aside class="l-sidebar__sidebar"> <div id="block-research-topic-sidebar-nav" class="local-menu-block"> <button class="local-menu-block__mobile-button">Section Menu</button> <div class="local-menu-block__content"> <ul class="menu menu--main"> <li class="menu__item is-expanded"> <a href="/scientific-discovery" class="menu__link is-expanded" data-drupal-link-system-path="taxonomy/term/39">Scientific Discovery</a> </li> <li class="menu__item is-expanded"> <a href="/sustainable-energy" class="menu__link is-expanded" data-drupal-link-system-path="taxonomy/term/41">Sustainable Energy</a> </li> <li class="menu__item is-expanded"> <a href="/national-security" class="menu__link is-expanded" data-drupal-link-system-path="taxonomy/term/40">National Security</a> </li> <li class="menu__item has-subnav is-active-trail is-expanded"> <a href="/data-science-computing" class="menu__link has-subnav is-active-trail is-expanded" data-drupal-link-system-path="taxonomy/term/78">Data Science & Computing</a> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/artificial-intelligence" class="menu__link" data-drupal-link-system-path="taxonomy/term/208">Artificial Intelligence</a> </li> <li class="menu__item is-active-trail"> <a href="/graph-and-data-analytics" class="menu__link is-active-trail is-active" data-drupal-link-system-path="taxonomy/term/81">Graph and Data Analytics</a> </li> <li class="menu__item"> <a href="/software-engineering" class="menu__link" data-drupal-link-system-path="taxonomy/term/85">Software Engineering</a> </li> <li class="menu__item"> <a href="/computational-mathematics-statistics" class="menu__link" data-drupal-link-system-path="taxonomy/term/89">Computational Mathematics & Statistics</a> </li> <li class="menu__item is-expanded"> <a href="/high-performance-computing" class="menu__link is-expanded" data-drupal-link-system-path="taxonomy/term/160">High-Performance Computing</a> </li> <li class="menu__item"> <a href="/visual-analytics" class="menu__link" data-drupal-link-system-path="taxonomy/term/84">Visual Analytics</a> </li> </ul> </li> <li class="menu__item"> <a href="/lab-objectives" class="menu__link" data-drupal-link-system-path="node/22">Lab Objectives</a> </li> <li class="menu__item"> <a href="/publications-reports" class="menu__link" data-drupal-link-system-path="node/28">Publications & Reports</a> </li> <li class="menu__item"> <a href="/featured-research" class="menu__link" data-drupal-link-system-path="node/68041">Featured Research</a> </li> </ul> </div> </div> <div id="block-pnnllistinglinkblock" class="menu-block"> <div class="menu-block__content"> <ul class="menu menu--listing-links"><li class="menu__item"><a href="/news?news%5B0%5D=research-topic%3A81" class="news">News & Updates</a></li><li class="menu__item"><a href="/events?events%5B0%5D=research-topic%3A81" class="events">Attend a Graph and Data Analytics Event</a></li><li class="menu__item"><a href="/publications-reports?publications%5B0%5D=research-topic%3A81" class="publications-reports">Publications</a></li><li class="menu__item"><a href="/projects?projects%5B0%5D=research-topic%3A81" class="projects">Projects</a></li><li class="menu__item"><a href="/explainer-articles?explainer-articles%5B0%5D=research-topic%3A81" class="explainer-articles">Explainer Articles</a></li></ul> </div> </div> <div class="related-people"> <h4 class="related-people-heading"> </h4> <div class="related-people-list" > </div> </div> </aside> <div class="l-sidebar__main"> <section class="paragraph paragraph--type-content-embed paragraph--display-mode-default l-section"> <div class="l-section__content"> <div class="custom-table"><div class="tex2jax_process"><p><span><span><span>Data essential for examining hard scientific and <a href="https://www.pnnl.gov/national-security">national security</a> questions are often large, messy, or incomplete. Frequently, these data exist in networks or graphs that grow more complex as the amount of data grows.</span></span></span></p> <p><span><span><span>Take the energy sector, for example. Technologies continually evolve, and new sources of energy generation come to fruition. These rapid changes create challenges for data integration and understanding.</span></span></span></p> <p><span><span><span>Likewise, related data carried over digital networks can be nearly impossible to connect. These data can be captured or conveyed with graphs, but at a very high level.</span></span></span></p> <p><span><span><span>Our researchers are pioneering data and graph analytics using novel <a href="https://www.pnnl.gov/visual-analytics">visualization</a> and <a href="https://www.pnnl.gov/artificial-intelligence">machine learning techniques</a> to tease out data connections.</span></span></span></p> <h3><span><span><span><span><span>Data integration across devices, networks, and data sets</span></span></span></span></span></h3> <p><span><span><span>Pacific Northwest National Laboratory (PNNL) researchers developed the <a href="https://bgintegration.pnnl.gov/volttron.asp">VOLTTRON<sup>TM</sup> software platform</a> to integrate smart device operations and communications over the power grid. The platform’s analytical environment seamlessly and securely connects a wide range of data and devices to make automatic decisions based on user needs and preferences. When used in building systems to manage energy consumption, VOLTTRON improves overall system performance and creates a more flexible and reliable grid.</span></span></span></p> <p><span><span><span>Our researchers are also developing scalable graph platforms to understand network structures and extract actionable information embedded in diverse data sets. <a href="https://www.pnnl.gov/news-media/protecting-essential-connections-tangled-web">Ripples</a>, a first-of-its-kind network analysis tool, can solve complex graph analytics problems in less than a minute on a <a href="https://www.pnnl.gov/high-performance-computing">high-performance computing</a> platform. Grappolo can perform blazing fast graph clustering (community detection) on graphs with millions to billions of nodes. Vite, a distributed version of Grappolo, can scale computation on leadership-class machines for graphs with tens to hundreds of billions of edges, with demonstrated performance on modern multi-GPU systems.</span></span></span></p> <p><span><span><span>Networks frequently present data of higher complexity than can be captured natively in graphs. <a href="https://www.pnnl.gov/publications/revealing-genes-respond-viral-infections">Hypergraphs</a> are networks in which entities can be related into groups (hyperedges) of one or more entities, not just as pairs of entities as in graphs. Hypergraph concepts like paths and walks, in addition to length, also have width, or strength of interaction. Methods from network science extend naturally to hypergraphs, and their complex multidimensional structure yields representations from computational topology, including abstract simplicial complexes. <a href="https://github.com/pnnl/HyperNetX">HyperNetX(HNX)</a> is an open-source Python library developed to analyze and visualize multi-way relationships modeled as hypergraphs. These relationships can be found in cyber data, protein pathways, bibliographic networks, and social media where interactions involve multiple entities simultaneously.</span></span></span></p> <p><span><span><span>The <a href="https://www.pnnl.gov/projects/exascale-computing-project">Exascale Computing Project’s</a> co-design centers, ExaGraph and ExaLearn, are other examples of our work in this area. Through these projects, we are developing scalable graph algorithms targeting exascale systems, integration with domain science applications, generative models for molecular structures, and scalable implementations of deep reinforcement learning algorithms.</span></span></span></p> <p><span><span><span>Additionally, PNNL researchers develop mathematical foundations for <a href="https://dnc2s.ornl.gov/">data-driven decision control for complex systems</a>, such as high-energy physics facilities and smart buildings. This work is part of our partnership with Oak Ridge National Laboratory, the University of Arizona, and the University of California, Santa Barbara.</span></span></span></p> <p><span><span><span>PNNL has a deep understanding of the mathematical principles that govern the digital landscape. Our data and graph analytics technologies have been deployed in domains including threat detection for national security, cyber analytics, scientific computing, intellectual property portfolio analysis, energy grid reliability, environmental safety, training, and law enforcement. Further, in collaboration with joint institutes such as the University of Washington, our researchers are discovering innovative solutions to complex analytic challenges.</span></span></span></p></div></div> </div> </section> <div class="l-listing-view"> <div class="l-constrain"> <div class="l-listing-view__wrapper"> <div class="l-listing-view__body"> <section class="paragraph paragraph--type-view-embed paragraph--display-mode-default l-section"> <h2 class="l-section__title">Top Stories</h2> <div class="l-section__content"> <div class="views-element-container"><div class="l-grid l-grid--3col"> <div class="card has-footer "> <div class="card__body"> <div class="card__header"> <div class="card__meta"> <div class="meta "> <div class="meta__item">OCTOBER 23, 2024</div> <div class="meta__item">Feature</div> </div> </div> <h3 class="card__title"> <a href="/news-media/researchers-eye-topological-signatures-cyber-threats"> <span>Researchers Eye ‘Topological Signatures’ of Cyber Threats</span> </a> </h3> </div> <div class="card__footer"> <a href="/news-media/researchers-eye-topological-signatures-cyber-threats">Read</a> </div> </div> <div class="card__media"> <a href="/news-media/researchers-eye-topological-signatures-cyber-threats"> <article> <div class="field field--name-field-media-image field--type-image field--label-hidden field--style-no-margin"> <div class="field__item"> <img src="/sites/default/files/styles/thumbnail/public/media/image/NSD_2345_WEB_NextWaveV2.jpg?h=08b866d1&itok=ix10gqQK" width="800" height="600" alt="Image of a researcher overlaid with digital elements representing cybersecurity" loading="lazy" /> </div> </div> </article> </a> </div> </div> <div class="card has-footer "> <div class="card__body"> <div class="card__header"> <div class="card__meta"> <div class="meta "> <div class="meta__item">AUGUST 29, 2024</div> <div class="meta__item">Staff Accomplishment</div> </div> </div> <h3 class="card__title"> <a href="/news-media/livewire-wins-team-award-annual-merit-review"> <span>Livewire Wins Team Award at Annual Merit Review</span> </a> </h3> </div> <div class="card__footer"> <a href="/news-media/livewire-wins-team-award-annual-merit-review">Read</a> </div> </div> <div class="card__media"> <a href="/news-media/livewire-wins-team-award-annual-merit-review"> <article> <div class="field field--name-field-media-image field--type-image field--label-hidden field--style-no-margin"> <div class="field__item"> <img src="/sites/default/files/styles/thumbnail/public/media/image/EED_2587_WEB_VTOawards_0.jpg?h=08b866d1&itok=fmE5eKPp" width="800" height="600" alt="PNNL Livewire Team Wins a DOE VTO Award" loading="lazy" /> </div> </div> </article> </a> </div> </div> <div class="card has-footer "> <div class="card__body"> <div class="card__header"> <div class="card__meta"> <div class="meta "> <div class="meta__item">JANUARY 25, 2024</div> <div class="meta__item">News Release</div> </div> </div> <h3 class="card__title"> <a href="/news-media/pnnl-software-technology-wins-flc-award"> <span>PNNL Software Technology Wins FLC Award</span> </a> </h3> </div> <div class="card__footer"> <a href="/news-media/pnnl-software-technology-wins-flc-award">Read</a> </div> </div> <div class="card__media"> <a href="/news-media/pnnl-software-technology-wins-flc-award"> <article> <div class="field field--name-field-media-image field--type-image field--label-hidden field--style-no-margin"> <div class="field__item"> <img src="/sites/default/files/styles/thumbnail/public/media/image/PNNL.VSP_.1600x1200_0-1.jpg?h=08b866d1&itok=b2You7Si" width="800" height="600" alt="Composite image showcasing different uses of the Visual Sample Plan software tool." loading="lazy" /> </div> </div> </article> </a> </div> </div> </div> <div class="see-all-link"> <a href="/news?news%5B0%5D=research-topic%3A81">SEE MORE RELATED NEWS</a> </div></div> </div> </section> </div> </div> </div> </div> <div class="l-listing-view"> <div class="l-constrain"> <div class="l-listing-view__wrapper"> <div class="l-listing-view__body"> <section class="paragraph paragraph--type-view-embed paragraph--display-mode-default l-section"> <h2 class="l-section__title">Featured Research</h2> <div class="l-section__content"> <div class="views-element-container"><div class="l-grid l-grid--3col"> <div class="card has-footer "> <div class="card__body"> <div class="card__header"> <div class="card__meta"> <div class="meta "> <div class="meta__item">NOVEMBER 17, 2023</div> <div class="meta__item">Article</div> </div> </div> <h3 class="card__title"> <a href="/publications/optimizing-computer-communications"> <span>Optimizing Computer Communications</span> </a> </h3> </div> <div class="card__footer"> <a href="/publications/optimizing-computer-communications">Read</a> </div> </div> <div class="card__media"> <a href="/publications/optimizing-computer-communications"> <article> <div class="field field--name-field-media-image field--type-image field--label-hidden field--style-no-margin"> <div class="field__item"> <img src="/sites/default/files/styles/thumbnail/public/media/image/Hero%20Image-Constance-15.jpg?h=34bbd072&itok=yPeFGoEV" width="800" height="600" alt="Image of computer cabling " loading="lazy" /> </div> </div> </article> </a> </div> </div> <div class="card has-footer "> <div class="card__body"> <div class="card__header"> <div class="card__meta"> <div class="meta "> <div class="meta__item">SEPTEMBER 15, 2023</div> <div class="meta__item">Article</div> </div> </div> <h3 class="card__title"> <a href="/publications/innovative-idea-streamlines-project-planning"> <span>Innovative Idea Streamlines Project Planning </span> </a> </h3> </div> <div class="card__footer"> <a href="/publications/innovative-idea-streamlines-project-planning">Read</a> </div> </div> <div class="card__media"> <a href="/publications/innovative-idea-streamlines-project-planning"> <article> <div class="field field--name-field-media-image field--type-image field--label-hidden field--style-no-margin"> <div class="field__item"> <img src="/sites/default/files/styles/thumbnail/public/media/image/DDST_0187_WEB_ScheduleVisualizer_v1%20%282%29.jpg?h=08b866d1&itok=bMBhtxLL" width="800" height="600" alt="Project Schedule Visualizer on screen " loading="lazy" /> </div> </div> </article> </a> </div> </div> <div class="card has-footer "> <div class="card__body"> <div class="card__header"> <div class="card__meta"> <div class="meta "> <div class="meta__item">AUGUST 2, 2023</div> <div class="meta__item">Article</div> </div> </div> <h3 class="card__title"> <a href="/publications/synergizing-techniques-advance-ai"> <span>Synergizing Techniques to Advance AI</span> </a> </h3> </div> <div class="card__footer"> <a href="/publications/synergizing-techniques-advance-ai">Read</a> </div> </div> <div class="card__media"> <a href="/publications/synergizing-techniques-advance-ai"> <article> <div class="field field--name-field-media-image field--type-image field--label-hidden field--style-no-margin"> <div class="field__item"> <img src="/sites/default/files/styles/thumbnail/public/media/image/NeuralNetworks-1600x1200.jpg?h=08b866d1&itok=xSHGmY8Y" width="800" height="600" alt="Artist's depiction of a neural network, which takes the form of a web of small beads with lightning running through them." loading="lazy" /> </div> </div> </article> </a> </div> </div> </div> <div class="see-all-link"> <a href="/featured-research?featured-research%5B0%5D=research-topic%3A81">SEE MORE RELATED HIGHLIGHTS</a> </div></div> </div> </section> </div> </div> </div> </div> <section class="paragraph paragraph--type-highlighted-facilities paragraph--display-mode-default l-section"> <h2 class="l-section__title">Facilities</h2> <div class="l-section__content"> <div class="l-grid l-grid--2col l-grid--padding"> <a href="/advanced-wireless-communications-lab" class="border-teaser"><span>Advanced Wireless Communications Lab</span> </a> </div> </div> </section> <section class="paragraph paragraph--type-highlighted-divisions paragraph--display-mode-default l-section"> <h2 class="l-section__title">Related Divisions</h2> <div class="l-section__content"> <div class="l-grid l-grid--3col"> <a href="/advanced-computing-mathematics-and-data" class="image-card" style="background-image: url(/sites/default/files/styles/hero_1600x1200/public/media/image/PNNL_WEB_3750x1250_HEADER_v6_0_0.jpg?h=0b3cdce2&itok=eHZ_C1c-)"> <div class="image-card__content"> <div class="image-card__title"><span>Advanced Computing, Mathematics, and Data</span> </div> </div> </a> <a href="/ai-and-data-analytics" class="image-card" style="background-image: url(/sites/default/files/styles/hero_1600x1200/public/media/image/PNNL.CA_.DivPage.3750x1250_0.jpg?h=d07c593c&itok=TEyFYEOI)"> <div class="image-card__content"> <div class="image-card__title"><span>AI and Data Analytics Division </span> </div> </div> </a> </div> </div> </section> <section class="paragraph paragraph--type-link-list paragraph--display-mode-default l-section"> <h3 class="l-section__title">Related Links</h3> <div class="l-section__content"> <div class="link-list"> <a href="https://www.pnnl.gov/explainer-articles/deep-reinforcement-learning">What is Deep Reinforcement Learning?</a><a href="https://www.pnnl.gov/explainer-articles/graph-analytics">What is Graph Analytics?</a> </div> </div> </section> <section class="paragraph paragraph--type-user-profile-list paragraph--display-mode-default l-section l-section--gray"> <h3 class="l-section__title">Contacts</h3> <div class="l-section__content"> <div class="l-grid l-grid--3col-alt"> <div class="contact"> <div class="contact__name"><a href="/people/mahantesh-halappanavar">Mahantesh Halappanavar</a></div> <div class="contact__title">Chief Data Scientist, Data Sciences & Machine Intelligence Group</div> <div class="contact__email"> <div class="icon-info icon-info--email icon-info--small"> <div class="icon-info__icon"></div> <div class="icon-info__info"><a href="mailto:hala@pnnl.gov">hala@pnnl.gov</a></div> </div></div> <div class="contact__phone"> <div class="icon-info icon-info--phone icon-info--small"> <div class="icon-info__icon"></div> <div class="icon-info__info"><a href="tel:1%28509%29372-5987">1 (509) 372-5987</a></div> </div></div> </div><div class="contact"> <div class="contact__name"><a href="/people/court-corley">Court Corley</a></div> <div class="contact__title">Chief Scientist for Artificial Intelligence </div> <div class="contact__email"> <div class="icon-info icon-info--email icon-info--small"> <div class="icon-info__icon"></div> <div class="icon-info__info"><a href="mailto:court@pnnl.gov">court@pnnl.gov</a></div> </div></div> </div> </div> </div> </section> </div> </div> </div> </div> <div class="hidden"> </div> </div> </main> <footer class="l-footer" role="contentinfo"> <div class="l-constrain l-constrain--narrow"> <div class="l-footer__top"> <div class="l-footer__top-first"> <a class="site-name" href="https://www.pnnl.gov/" title="Home" rel="home"> <h1 class="site-name__text">PNNL</h1> </a> </div> <div class="l-footer__top-second"> <ul class="menu menu--footer"> <li class="menu__item has-subnav is-expanded"> <span class="menu__link has-subnav is-expanded">Get in Touch</span> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/contacts" title="Contact" class="menu__link" data-drupal-link-system-path="node/1281">Contact</a> </li> <li class="menu__item"> <a href="https://careers.pnnl.gov" class="menu__link" title="Careers">Careers</a> </li> <li class="menu__item"> <a href="https://www.pnnl.gov/business/" class="menu__link">Doing Business</a> </li> <li class="menu__item"> <a href="https://www.pnnl.gov/pnnl-annual-site-environmental-report" class="menu__link">Environmental Reports</a> </li> <li class="menu__item"> <a href="/security-privacy" title="Security & Privacy" class="menu__link" data-drupal-link-system-path="node/1373">Security & Privacy</a> </li> <li class="menu__item"> <a href="https://doe.responsibledisclosure.com/hc/en-us" class="menu__link">Vulnerability Disclosure Program</a> </li> </ul> </li> <li class="menu__item has-subnav is-expanded"> <span class="menu__link has-subnav is-expanded">Research</span> <ul class="menu menu__subnav"> <li class="menu__item"> <a href="/scientific-discovery" title="Scientific Discovery" class="menu__link" data-drupal-link-system-path="taxonomy/term/39">Scientific Discovery</a> </li> <li class="menu__item"> <a href="/energy-resiliency" class="menu__link" title="Sustainable Energy">Sustainable Energy</a> </li> <li class="menu__item"> <a href="/national-security" title="National Security" class="menu__link" data-drupal-link-system-path="taxonomy/term/40">National Security</a> </li> </ul> </li> </ul> </div> <div class="l-footer__top-third"> <a href="/subscribe-pnnl-news" class="l-footer__subscribe" target="_blank">Subscribe to PNNL News</a> </div> </div> <div class="l-footer__bottom"> <div class="l-footer__bottom-first"> <a href="https://www.energy.gov/" class="l-footer__logo l-footer__logo--doe">Department of Energy Logo</a> <a href="https://www.battelle.org/" class="l-footer__logo l-footer__logo--battelle">Battelle Logo</a> </div> <div class="l-footer__bottom-second"> <div class="copyright"> Pacific Northwest National Laboratory (PNNL) is managed and operated by Battelle for the Department of Energy </div> </div> <div class="l-footer__bottom-third"> <ul class="menu menu--social"> <li class="menu__item"> <a href="http://www.youtube.com/user/PNNLgov" class="menu__link--youtube menu__link" target="_blank">YouTube</a> </li> <li class="menu__item"> <a href="http://www.facebook.com/PNNLgov" class="menu__link--facebook menu__link" target="_blank">Facebook</a> </li> <li class="menu__item"> <a href="http://twitter.com/PNNLab" class="menu__link--twitterx menu__link" target="_blank">X (formerly Twitter)</a> </li> <li class="menu__item"> <a href="https://www.instagram.com/pnnlab" class="menu__link--instagram menu__link" target="_blank">Instagram</a> </li> <li class="menu__item"> <a href="https://www.linkedin.com/company/pacific-northwest-national-laboratory" class="menu__link--linkedin menu__link" target="_blank">LinkedIn</a> </li> </ul> </div> </div> </div> </footer> </div> </div> <script src="/core/assets/vendor/jquery.ui/ui/version-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/data-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/disable-selection-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/focusable-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/form-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/ie-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/jquery-patch-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/keycode-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/plugin-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/safe-active-element-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/safe-blur-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/scroll-parent-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/unique-id-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/widget-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/widgets/autocomplete-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/labels-min.js?v=9.5.11"></script> <script src="/core/assets/vendor/jquery.ui/ui/widgets/menu-min.js?v=9.5.11"></script> <script src="/core/misc/autocomplete.js?v=9.5.11"></script> <script src="/modules/contrib/mathjax/js/config.js?v=9.5.11"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script> <script src="/modules/contrib/mathjax/js/setup.js?v=9.5.11"></script> <script src="/themes/gesso/js/caption.js?v=9.5.11"></script> <script src="/themes/gesso/js/homepage.js?v=9.5.11"></script> <script src="/themes/gesso/js/image-gallery.js?v=9.5.11"></script> <script src="/themes/gesso/js/lib/accessibleMegaMenu.js?v=9.5.11"></script> <script src="/themes/gesso/js/lib/slick.min.js?v=9.5.11"></script> <script src="/themes/gesso/js/menus.js?v=9.5.11"></script> <script src="/themes/gesso/js/multi-search.js?v=9.5.11"></script> <script src="/themes/gesso/js/scripts.js?v=9.5.11"></script> <script src="/core/misc/jquery.tabbable.shim.js?v=9.5.11"></script> <script src="/core/misc/position.js?v=9.5.11"></script> <script src="/modules/project/pnnl_search/dist/search-auto-submit-js.js?snw8tq"></script> </body> </html>

CINXE.COM

Graph and Data Analytics | PNNL