Node Postprocessor Modules

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for="__nav_5_7" id="__nav_5_7_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_5_7_label" aria-expanded="true"> <label class="md-nav__title" for="__nav_5_7"> Querying </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_7_2" > <div class="md-nav__link md-nav__container"> <a href="../../../deploying/query_engine/" class="md-nav__link "> Query Engines </a> <label class="md-nav__link " for="__nav_5_7_2" id="__nav_5_7_2_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_5_7_2_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_5_7_2"> Query Engines </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../deploying/query_engine/usage_pattern/" class="md-nav__link"> Usage Pattern </a> </li> <li class="md-nav__item"> <a 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for="__nav_5_7_3"> Chat Engines </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../deploying/chat_engines/usage_pattern/" class="md-nav__link"> Usage Pattern </a> </li> <li class="md-nav__item"> <a href="../../../deploying/chat_engines/modules/" class="md-nav__link"> Module Guides </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_7_4" > <div class="md-nav__link md-nav__container"> <a href="../../retriever/" class="md-nav__link "> Retrieval </a> <label class="md-nav__link " for="__nav_5_7_4" id="__nav_5_7_4_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_5_7_4_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_5_7_4"> Retrieval </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../retriever/retrievers/" class="md-nav__link"> Retriever Modules </a> </li> <li class="md-nav__item"> <a href="../../retriever/retriever_modes/" class="md-nav__link"> Retriever Modes </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--active md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_7_5" checked> <div class="md-nav__link md-nav__container"> <a href="../" class="md-nav__link "> Node Postprocessors </a> <label class="md-nav__link " for="__nav_5_7_5" id="__nav_5_7_5_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_5_7_5_label" aria-expanded="true"> <label class="md-nav__title" for="__nav_5_7_5"> Node Postprocessors </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item md-nav__item--active"> <input class="md-nav__toggle md-toggle" type="checkbox" id="__toc"> <label class="md-nav__link md-nav__link--active" for="__toc"> Node Postprocessor Modules </label> <a href="./" class="md-nav__link md-nav__link--active"> 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href="#sentencetransformerrerank" class="md-nav__link"> SentenceTransformerRerank </a> </li> <li class="md-nav__item"> <a href="#llm-rerank" class="md-nav__link"> LLM Rerank </a> </li> <li class="md-nav__item"> <a href="#jinarerank" class="md-nav__link"> JinaRerank </a> </li> <li class="md-nav__item"> <a href="#fixedrecencypostprocessor" class="md-nav__link"> FixedRecencyPostprocessor </a> </li> <li class="md-nav__item"> <a href="#embeddingrecencypostprocessor" class="md-nav__link"> EmbeddingRecencyPostprocessor </a> </li> <li class="md-nav__item"> <a href="#timeweightedpostprocessor" class="md-nav__link"> TimeWeightedPostprocessor </a> </li> <li class="md-nav__item"> <a href="#beta-piinodepostprocessor" class="md-nav__link"> (Beta) PIINodePostprocessor </a> <nav class="md-nav" aria-label="(Beta) PIINodePostprocessor"> <ul class="md-nav__list"> <li class="md-nav__item"> <a href="#llm-version" class="md-nav__link"> LLM Version </a> </li> <li class="md-nav__item"> <a href="#ner-version" class="md-nav__link"> NER Version </a> </li> </ul> </nav> </li> <li class="md-nav__item"> <a href="#beta-prevnextnodepostprocessor" class="md-nav__link"> (Beta) PrevNextNodePostprocessor </a> </li> <li class="md-nav__item"> <a href="#beta-autoprevnextnodepostprocessor" class="md-nav__link"> (Beta) AutoPrevNextNodePostprocessor </a> </li> <li class="md-nav__item"> <a href="#beta-rankgpt" class="md-nav__link"> (Beta) RankGPT </a> </li> <li class="md-nav__item"> <a href="#colbert-reranker" class="md-nav__link"> Colbert Reranker </a> </li> <li class="md-nav__item"> <a href="#rankllm" class="md-nav__link"> rankLLM </a> </li> <li class="md-nav__item"> <a href="#all-notebooks" class="md-nav__link"> All Notebooks </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_7_6" > <div class="md-nav__link md-nav__container"> <a href="../../response_synthesizers/" class="md-nav__link "> 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id="__nav_5_7_9_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_5_7_9_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_5_7_9"> Query Pipelines (Deprecated) </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../pipeline/usage_pattern/" class="md-nav__link"> Usage Pattern </a> </li> <li class="md-nav__item"> <a href="../../pipeline/modules/" class="md-nav__link"> Module Guides </a> </li> <li class="md-nav__item"> <a href="../../pipeline/module_usage/" class="md-nav__link"> Module Usage </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5_7_10" > <div class="md-nav__link md-nav__container"> <a href="../../structured_outputs/" class="md-nav__link "> Structured Outputs </a> <label class="md-nav__link " for="__nav_5_7_10" id="__nav_5_7_10_label" tabindex="0"> </label> </div> <nav 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href="../../../../api_reference/indices/" class="md-nav__link "> Indexes </a> <label class="md-nav__link " for="__nav_7_7" id="__nav_7_7_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_7_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_7"> Indexes </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/indices/bge_m3/" class="md-nav__link"> Bge m3 </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/indices/colbert/" class="md-nav__link"> Colbert </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/indices/dashscope/" class="md-nav__link"> Dashscope </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/indices/document_summary/" class="md-nav__link"> Document summary </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/indices/google/" class="md-nav__link"> Google </a> </li> <li 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class="md-nav__link"> Alibabacloud aisearch </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/anthropic/" class="md-nav__link"> Anthropic </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/anyscale/" class="md-nav__link"> Anyscale </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/azure_inference/" class="md-nav__link"> Azure inference </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/azure_openai/" class="md-nav__link"> Azure openai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/bedrock/" class="md-nav__link"> Bedrock </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/bedrock_converse/" class="md-nav__link"> Bedrock converse </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/cerebras/" class="md-nav__link"> Cerebras </a> </li> <li class="md-nav__item"> <a 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href="../../../../api_reference/llms/fireworks/" class="md-nav__link"> Fireworks </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/friendli/" class="md-nav__link"> Friendli </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/gaudi/" class="md-nav__link"> Gaudi </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/gemini/" class="md-nav__link"> Gemini </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/gigachat/" class="md-nav__link"> Gigachat </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/gradient.md" class="md-nav__link"> None </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/groq/" class="md-nav__link"> Groq </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/huggingface/" class="md-nav__link"> Huggingface </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/huggingface_api/" class="md-nav__link"> Huggingface api </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/ibm/" class="md-nav__link"> Ibm </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/ipex_llm/" class="md-nav__link"> Ipex llm </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/konko/" class="md-nav__link"> Konko </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/langchain/" class="md-nav__link"> Langchain </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/litellm/" class="md-nav__link"> Litellm </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/llama_api/" class="md-nav__link"> Llama api </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/llama_cpp/" class="md-nav__link"> Llama cpp </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/llamafile/" class="md-nav__link"> Llamafile </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/lmstudio/" class="md-nav__link"> Lmstudio </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/localai/" class="md-nav__link"> Localai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/maritalk/" class="md-nav__link"> Maritalk </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/mistral_rs/" class="md-nav__link"> Mistral rs </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/mistralai/" class="md-nav__link"> Mistralai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/mlx/" class="md-nav__link"> Mlx </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/modelscope/" class="md-nav__link"> Modelscope </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/monsterapi/" class="md-nav__link"> Monsterapi </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/mymagic/" class="md-nav__link"> Mymagic </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/nebius/" class="md-nav__link"> Nebius </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/neutrino/" class="md-nav__link"> Neutrino </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/nvidia/" class="md-nav__link"> Nvidia </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/nvidia_tensorrt/" class="md-nav__link"> Nvidia tensorrt </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/nvidia_triton/" class="md-nav__link"> Nvidia triton </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/oci_genai/" class="md-nav__link"> Oci genai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/octoai/" class="md-nav__link"> Octoai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/ollama/" class="md-nav__link"> Ollama </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/openai/" class="md-nav__link"> Openai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/openai_like/" class="md-nav__link"> Openai like </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/openllm/" class="md-nav__link"> Openllm </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/openrouter/" class="md-nav__link"> Openrouter </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/openvino/" class="md-nav__link"> Openvino </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/optimum_intel/" class="md-nav__link"> Optimum intel </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/paieas/" class="md-nav__link"> Paieas </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/palm/" class="md-nav__link"> Palm </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/perplexity/" class="md-nav__link"> Perplexity </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/pipeshift/" class="md-nav__link"> Pipeshift </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/portkey/" class="md-nav__link"> Portkey </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/predibase/" class="md-nav__link"> Predibase </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/premai/" class="md-nav__link"> Premai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/qianfan/" class="md-nav__link"> Qianfan </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/reka/" class="md-nav__link"> Reka </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/replicate/" class="md-nav__link"> Replicate </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/rungpt/" class="md-nav__link"> Rungpt </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/sagemaker_endpoint/" class="md-nav__link"> Sagemaker endpoint </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/sambanovasystems/" class="md-nav__link"> Sambanovasystems </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/siliconflow/" class="md-nav__link"> Siliconflow </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/solar/" class="md-nav__link"> Solar </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/text_generation_inference/" class="md-nav__link"> Text generation inference </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/together/" class="md-nav__link"> Together </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/unify/" class="md-nav__link"> Unify </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/upstage/" class="md-nav__link"> Upstage </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/vertex/" class="md-nav__link"> Vertex </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/vllm/" class="md-nav__link"> Vllm </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/xinference/" class="md-nav__link"> Xinference </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/yi/" class="md-nav__link"> Yi </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/you/" class="md-nav__link"> You </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llms/zhipuai/" class="md-nav__link"> Zhipuai </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " 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href="../../../../api_reference/llama_deploy/services/" class="md-nav__link"> services </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llama_deploy/types/" class="md-nav__link"> types </a> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_12_11" > <div class="md-nav__link md-nav__container"> <a href="../../../../api_reference/llama_deploy/message_queues/" class="md-nav__link "> message_queues </a> <label class="md-nav__link " for="__nav_7_12_11" id="__nav_7_12_11_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_7_12_11_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_12_11"> message_queues </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/llama_deploy/message_queues/kafka/" class="md-nav__link"> apache_kafka </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llama_deploy/message_queues/rabbitmq/" class="md-nav__link"> rabbitmq </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llama_deploy/message_queues/redis/" class="md-nav__link"> redis </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/llama_deploy/message_queues/simple/" class="md-nav__link"> simple </a> </li> </ul> </nav> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_13" > <div class="md-nav__link md-nav__container"> <a href="../../../../api_reference/packs/" class="md-nav__link "> Llama Packs </a> <label class="md-nav__link " for="__nav_7_13" id="__nav_7_13_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_13_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_13"> Llama Packs </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/packs/agent_search_retriever/" class="md-nav__link"> Agent search retriever </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/agents_coa/" class="md-nav__link"> Agents coa </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/agents_lats/" class="md-nav__link"> Agents lats </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/agents_llm_compiler/" class="md-nav__link"> Agents llm compiler </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/amazon_product_extraction/" class="md-nav__link"> Amazon product extraction </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/arize_phoenix_query_engine/" class="md-nav__link"> Arize phoenix query engine </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/auto_merging_retriever/" class="md-nav__link"> Auto merging retriever </a> </li> <li 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href="../../../../api_reference/packs/neo4j_query_engine/" class="md-nav__link"> Neo4j query engine </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/node_parser_semantic_chunking/" class="md-nav__link"> Node parser semantic chunking </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/ollama_query_engine/" class="md-nav__link"> Ollama query engine </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/panel_chatbot/" class="md-nav__link"> Panel chatbot </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/query_understanding_agent/" class="md-nav__link"> Query understanding agent </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/raft_dataset/" class="md-nav__link"> Raft dataset </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/packs/rag_cli_local/" class="md-nav__link"> Rag cli local </a> </li> <li class="md-nav__item"> <a 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class="md-nav__link"> Guardrails </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/output_parsers/langchain/" class="md-nav__link"> Langchain </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/output_parsers/pydantic/" class="md-nav__link"> Pydantic </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/output_parsers/selection/" class="md-nav__link"> Selection </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_21" > <div class="md-nav__link md-nav__container"> <a href="../../../../api_reference/program/" class="md-nav__link "> Programs </a> <label class="md-nav__link " for="__nav_7_21" id="__nav_7_21_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_21_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_21"> Programs </label> <ul class="md-nav__list" 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for="__nav_7_26"> Readers </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/readers/agent_search/" class="md-nav__link"> Agent search </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/airbyte_cdk/" class="md-nav__link"> Airbyte cdk </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/airbyte_gong/" class="md-nav__link"> Airbyte gong </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/airbyte_hubspot/" class="md-nav__link"> Airbyte hubspot </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/airbyte_salesforce/" class="md-nav__link"> Airbyte salesforce </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/airbyte_shopify/" class="md-nav__link"> Airbyte shopify </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/airbyte_stripe/" class="md-nav__link"> Airbyte 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href="../../../../api_reference/readers/llama_parse/" class="md-nav__link"> Llama parse </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/macrometa_gdn/" class="md-nav__link"> Macrometa gdn </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/make_com/" class="md-nav__link"> Make com </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/mangadex/" class="md-nav__link"> Mangadex </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/mangoapps_guides/" class="md-nav__link"> Mangoapps guides </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/maps/" class="md-nav__link"> Maps </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/mbox/" class="md-nav__link"> Mbox </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/memos/" class="md-nav__link"> Memos </a> </li> <li class="md-nav__item"> <a 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<a href="../../../../api_reference/readers/oracleai/" class="md-nav__link"> Oracleai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/pandas_ai/" class="md-nav__link"> Pandas ai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/papers/" class="md-nav__link"> Papers </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/patentsview/" class="md-nav__link"> Patentsview </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/pathway/" class="md-nav__link"> Pathway </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/pdb/" class="md-nav__link"> Pdb </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/pdf_marker/" class="md-nav__link"> Pdf marker </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/pdf_table/" class="md-nav__link"> Pdf table </a> </li> <li class="md-nav__item"> <a 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href="../../../../api_reference/readers/readwise/" class="md-nav__link"> Readwise </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/reddit/" class="md-nav__link"> Reddit </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/remote/" class="md-nav__link"> Remote </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/remote_depth/" class="md-nav__link"> Remote depth </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/s3/" class="md-nav__link"> S3 </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/sec_filings/" class="md-nav__link"> Sec filings </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/semanticscholar/" class="md-nav__link"> Semanticscholar </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/simple_directory_reader/" class="md-nav__link"> Simple directory reader </a> </li> <li 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Steamship </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/string_iterable/" class="md-nav__link"> String iterable </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/stripe_docs/" class="md-nav__link"> Stripe docs </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/structured_data/" class="md-nav__link"> Structured data </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/telegram/" class="md-nav__link"> Telegram </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/toggl/" class="md-nav__link"> Toggl </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/trello/" class="md-nav__link"> Trello </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/twitter/" class="md-nav__link"> Twitter </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/txtai/" class="md-nav__link"> Txtai </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/upstage/" class="md-nav__link"> Upstage </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/weather/" class="md-nav__link"> Weather </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/weaviate/" class="md-nav__link"> Weaviate </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/web/" class="md-nav__link"> Web </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/whatsapp/" class="md-nav__link"> Whatsapp </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/wikipedia/" class="md-nav__link"> Wikipedia </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/wordlift/" class="md-nav__link"> Wordlift </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/readers/wordpress/" class="md-nav__link"> Wordpress </a> </li> <li 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class="md-nav__link "> Response Synthesizers </a> <label class="md-nav__link " for="__nav_7_27" id="__nav_7_27_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_27_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_27"> Response Synthesizers </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/response_synthesizers/accumulate/" class="md-nav__link"> Accumulate </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/response_synthesizers/compact_accumulate/" class="md-nav__link"> Compact accumulate </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/response_synthesizers/compact_and_refine/" class="md-nav__link"> Compact and refine </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/response_synthesizers/generation/" class="md-nav__link"> Generation </a> </li> <li class="md-nav__item"> <a 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aria-expanded="false"> <label class="md-nav__title" for="__nav_7_28"> Retrievers </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/retrievers/auto_merging/" class="md-nav__link"> Auto merging </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/retrievers/bedrock/" class="md-nav__link"> Bedrock </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/retrievers/bm25/" class="md-nav__link"> Bm25 </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/retrievers/duckdb_retriever/" class="md-nav__link"> Duckdb retriever </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/retrievers/keyword/" class="md-nav__link"> Keyword </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/retrievers/knowledge_graph/" class="md-nav__link"> Knowledge graph </a> </li> <li class="md-nav__item"> <a 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class="md-nav__title" for="__nav_7_29"> Schema </label> <ul class="md-nav__list" data-md-scrollfix> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_30" > <label class="md-nav__link" for="__nav_7_30" id="__nav_7_30_label" tabindex="0"> Selectors </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_30_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_30"> Selectors </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/selectors/notdiamond/" class="md-nav__link"> Notdiamond </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_31" > <label class="md-nav__link" for="__nav_7_31" id="__nav_7_31_label" tabindex="0"> Sparse Embeddings </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_31_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_31"> Sparse Embeddings </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/sparse_embeddings/fastembed/" class="md-nav__link"> Fastembed </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_32" > <label class="md-nav__link" for="__nav_7_32" id="__nav_7_32_label" tabindex="0"> Storage </label> <nav class="md-nav" data-md-level="2" aria-labelledby="__nav_7_32_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_32"> Storage </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_32_1" > <div class="md-nav__link md-nav__container"> <a href="../../../../api_reference/storage/chat_store/" class="md-nav__link "> Chat Store </a> <label class="md-nav__link " for="__nav_7_32_1" id="__nav_7_32_1_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_7_32_1_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_32_1"> Chat Store </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/storage/chat_store/azure/" class="md-nav__link"> Azure </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/chat_store/azurecosmosmongovcore/" class="md-nav__link"> Azurecosmosmongovcore </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/chat_store/azurecosmosnosql/" class="md-nav__link"> Azurecosmosnosql </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/chat_store/dynamodb/" class="md-nav__link"> Dynamodb </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/chat_store/postgres/" class="md-nav__link"> Postgres </a> 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class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/azure/" class="md-nav__link"> Azure </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/couchbase/" class="md-nav__link"> Couchbase </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/dynamodb/" class="md-nav__link"> Dynamodb </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/elasticsearch/" class="md-nav__link"> Elasticsearch </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/firestore/" class="md-nav__link"> Firestore </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/mongodb/" class="md-nav__link"> Mongodb </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/postgres/" class="md-nav__link"> Postgres </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/redis/" class="md-nav__link"> Redis </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/docstore/simple/" class="md-nav__link"> Simple </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7_32_3" > <div class="md-nav__link md-nav__container"> <a href="../../../../api_reference/storage/graph_stores/" class="md-nav__link "> Graph Stores </a> <label class="md-nav__link " for="__nav_7_32_3" id="__nav_7_32_3_label" tabindex="0"> </label> </div> <nav class="md-nav" data-md-level="3" aria-labelledby="__nav_7_32_3_label" aria-expanded="false"> <label class="md-nav__title" for="__nav_7_32_3"> Graph Stores </label> <ul class="md-nav__list" data-md-scrollfix> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/falkordb/" class="md-nav__link"> Falkordb </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/kuzu/" class="md-nav__link"> Kuzu </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/memgraph/" class="md-nav__link"> Memgraph </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/nebula/" class="md-nav__link"> Nebula </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/neo4j/" class="md-nav__link"> Neo4j </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/neptune/" class="md-nav__link"> Neptune </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/simple/" class="md-nav__link"> Simple </a> </li> <li class="md-nav__item"> <a href="../../../../api_reference/storage/graph_stores/tidb/" class="md-nav__link"> Tidb </a> </li> </ul> </nav> </li> <li class="md-nav__item md-nav__item--nested"> <input class="md-nav__toggle md-toggle " 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class="md-nav__item"> <a href="#sentenceembeddingoptimizer" class="md-nav__link"> SentenceEmbeddingOptimizer </a> </li> <li class="md-nav__item"> <a href="#coherererank" class="md-nav__link"> CohereRerank </a> </li> <li class="md-nav__item"> <a href="#sentencetransformerrerank" class="md-nav__link"> SentenceTransformerRerank </a> </li> <li class="md-nav__item"> <a href="#llm-rerank" class="md-nav__link"> LLM Rerank </a> </li> <li class="md-nav__item"> <a href="#jinarerank" class="md-nav__link"> JinaRerank </a> </li> <li class="md-nav__item"> <a href="#fixedrecencypostprocessor" class="md-nav__link"> FixedRecencyPostprocessor </a> </li> <li class="md-nav__item"> <a href="#embeddingrecencypostprocessor" class="md-nav__link"> EmbeddingRecencyPostprocessor </a> </li> <li class="md-nav__item"> <a href="#timeweightedpostprocessor" class="md-nav__link"> TimeWeightedPostprocessor </a> </li> <li class="md-nav__item"> <a href="#beta-piinodepostprocessor" class="md-nav__link"> (Beta) PIINodePostprocessor </a> <nav class="md-nav" aria-label="(Beta) PIINodePostprocessor"> <ul class="md-nav__list"> <li class="md-nav__item"> <a href="#llm-version" class="md-nav__link"> LLM Version </a> </li> <li class="md-nav__item"> <a href="#ner-version" class="md-nav__link"> NER Version </a> </li> </ul> </nav> </li> <li class="md-nav__item"> <a href="#beta-prevnextnodepostprocessor" class="md-nav__link"> (Beta) PrevNextNodePostprocessor </a> </li> <li class="md-nav__item"> <a href="#beta-autoprevnextnodepostprocessor" class="md-nav__link"> (Beta) AutoPrevNextNodePostprocessor </a> </li> <li class="md-nav__item"> <a href="#beta-rankgpt" class="md-nav__link"> (Beta) RankGPT </a> </li> <li class="md-nav__item"> <a href="#colbert-reranker" class="md-nav__link"> Colbert Reranker </a> </li> <li class="md-nav__item"> <a href="#rankllm" class="md-nav__link"> rankLLM </a> </li> <li class="md-nav__item"> <a href="#all-notebooks" class="md-nav__link"> All Notebooks </a> </li> </ul> </nav> </div> </div> </div> <div class="md-content" data-md-component="content"> <article class="md-content__inner md-typeset"> <h1 id="node-postprocessor-modules">Node Postprocessor Modules<a class="headerlink" href="#node-postprocessor-modules" title="Permanent link">#</a></h1> <h2 id="similaritypostprocessor">SimilarityPostprocessor<a class="headerlink" href="#similaritypostprocessor" title="Permanent link">#</a></h2> Used to remove nodes that are below a similarity score threshold. <div class="highlight"><pre><code>from llama_index.core.postprocessor import SimilarityPostprocessor postprocessor = SimilarityPostprocessor(similarity_cutoff=0.7) postprocessor.postprocess_nodes(nodes) </code></pre></div> <h2 id="keywordnodepostprocessor">KeywordNodePostprocessor<a class="headerlink" href="#keywordnodepostprocessor" title="Permanent link">#</a></h2> Used to ensure certain keywords are either excluded or included. <div class="highlight"><pre><code>from llama_index.core.postprocessor import KeywordNodePostprocessor postprocessor = KeywordNodePostprocessor( required_keywords=["word1", "word2"], exclude_keywords=["word3", "word4"] ) postprocessor.postprocess_nodes(nodes) </code></pre></div> <h2 id="metadatareplacementpostprocessor">MetadataReplacementPostProcessor<a class="headerlink" href="#metadatareplacementpostprocessor" title="Permanent link">#</a></h2> Used to replace the node content with a field from the node metadata. If the field is not present in the metadata, then the node text remains unchanged. Most useful when used in combination with the <code>SentenceWindowNodeParser</code>. <div class="highlight"><pre><code>from llama_index.core.postprocessor import MetadataReplacementPostProcessor postprocessor = MetadataReplacementPostProcessor( target_metadata_key="window", ) postprocessor.postprocess_nodes(nodes) </code></pre></div> <h2 id="longcontextreorder">LongContextReorder<a class="headerlink" href="#longcontextreorder" title="Permanent link">#</a></h2> Models struggle to access significant details found in the center of extended contexts. <a href="https://arxiv.org/abs/2307.03172">A study</a> observed that the best performance typically arises when crucial data is positioned at the start or conclusion of the input context. Additionally, as the input context lengthens, performance drops notably, even in models designed for long contexts. This module will re-order the retrieved nodes, which can be helpful in cases where a large top-k is needed. <div class="highlight"><pre><code>from llama_index.core.postprocessor import LongContextReorder postprocessor = LongContextReorder() postprocessor.postprocess_nodes(nodes) </code></pre></div> <h2 id="sentenceembeddingoptimizer">SentenceEmbeddingOptimizer<a class="headerlink" href="#sentenceembeddingoptimizer" title="Permanent link">#</a></h2> This postprocessor optimizes token usage by removing sentences that are not relevant to the query (this is done using embeddings). The percentile cutoff is a measure for using the top percentage of relevant sentences. The threshold cutoff can be specified instead, which uses a raw similarity cutoff for picking which sentences to keep. <div class="highlight"><pre><code>from llama_index.core.postprocessor import SentenceEmbeddingOptimizer postprocessor = SentenceEmbeddingOptimizer( embed_model=service_context.embed_model, percentile_cutoff=0.5, # threshold_cutoff=0.7 ) postprocessor.postprocess_nodes(nodes) </code></pre></div> A full notebook guide can be found <a href="../../../../examples/node_postprocessor/OptimizerDemo/">here</a> <h2 id="coherererank">CohereRerank<a class="headerlink" href="#coherererank" title="Permanent link">#</a></h2> Uses the "Cohere ReRank" functionality to re-order nodes, and returns the top N nodes. <div class="highlight"><pre><code>from llama_index.postprocessor.cohere_rerank import CohereRerank postprocessor = CohereRerank( top_n=2, model="rerank-english-v2.0", api_key="YOUR COHERE API KEY" ) postprocessor.postprocess_nodes(nodes) </code></pre></div> Full notebook guide is available <a href="../../../../examples/node_postprocessor/CohereRerank/">here</a>. <h2 id="sentencetransformerrerank">SentenceTransformerRerank<a class="headerlink" href="#sentencetransformerrerank" title="Permanent link">#</a></h2> Uses the cross-encoders from the <code>sentence-transformer</code> package to re-order nodes, and returns the top N nodes. <div class="highlight"><pre><code>from llama_index.core.postprocessor import SentenceTransformerRerank # We choose a model with relatively high speed and decent accuracy. postprocessor = SentenceTransformerRerank( model="cross-encoder/ms-marco-MiniLM-L-2-v2", top_n=3 ) postprocessor.postprocess_nodes(nodes) </code></pre></div> Full notebook guide is available <a href="../../../../examples/node_postprocessor/SentenceTransformerRerank/">here</a>. Please also refer to the <a href="https://www.sbert.net/docs/pretrained-models/ce-msmarco.html"><code>sentence-transformer</code> docs</a> for a more complete list of models (and also shows tradeoffs in speed/accuracy). The default model is <code>cross-encoder/ms-marco-TinyBERT-L-2-v2</code>, which provides the most speed. <h2 id="llm-rerank">LLM Rerank<a class="headerlink" href="#llm-rerank" title="Permanent link">#</a></h2> Uses a LLM to re-order nodes by asking the LLM to return the relevant documents and a score of how relevant they are. Returns the top N ranked nodes. <div class="highlight"><pre><code>from llama_index.core.postprocessor import LLMRerank postprocessor = LLMRerank(top_n=2, service_context=service_context) postprocessor.postprocess_nodes(nodes) </code></pre></div> Full notebook guide is available <a href="../../../../examples/node_postprocessor/LLMReranker-Gatsby/">her for Gatsby</a> and <a href="../../../../examples/node_postprocessor/LLMReranker-Lyft-10k/">here for Lyft 10K documents</a>. <h2 id="jinarerank">JinaRerank<a class="headerlink" href="#jinarerank" title="Permanent link">#</a></h2> Uses the "Jina ReRank" functionality to re-order nodes, and returns the top N nodes. <div class="highlight"><pre><code>from llama_index.postprocessor.jinaai_rerank import JinaRerank postprocessor = JinaRerank( top_n=2, model="jina-reranker-v1-base-en", api_key="YOUR JINA API KEY" ) postprocessor.postprocess_nodes(nodes) </code></pre></div> Full notebook guide is available <a href="../../../../examples/node_postprocessor/JinaRerank/">here</a>. <h2 id="fixedrecencypostprocessor">FixedRecencyPostprocessor<a class="headerlink" href="#fixedrecencypostprocessor" title="Permanent link">#</a></h2> This postproccesor returns the top K nodes sorted by date. This assumes there is a <code>date</code> field to parse in the metadata of each node. <div class="highlight"><pre><code>from llama_index.core.postprocessor import FixedRecencyPostprocessor postprocessor = FixedRecencyPostprocessor( tok_k=1, date_key="date" # the key in the metadata to find the date ) postprocessor.postprocess_nodes(nodes) </code></pre></div> <img alt="" src="../../../../_static/node_postprocessors/recency.png" /> A full notebook guide is available <a href="../../../../examples/node_postprocessor/RecencyPostprocessorDemo/">here</a>. <h2 id="embeddingrecencypostprocessor">EmbeddingRecencyPostprocessor<a class="headerlink" href="#embeddingrecencypostprocessor" title="Permanent link">#</a></h2> This postproccesor returns the top K nodes after sorting by date and removing older nodes that are too similar after measuring embedding similarity. <div class="highlight"><pre><code>from llama_index.core.postprocessor import EmbeddingRecencyPostprocessor postprocessor = EmbeddingRecencyPostprocessor( service_context=service_context, date_key="date", similarity_cutoff=0.7 ) postprocessor.postprocess_nodes(nodes) </code></pre></div> A full notebook guide is available <a href="../../../../examples/node_postprocessor/RecencyPostprocessorDemo/">here</a>. <h2 id="timeweightedpostprocessor">TimeWeightedPostprocessor<a class="headerlink" href="#timeweightedpostprocessor" title="Permanent link">#</a></h2> This postproccesor returns the top K nodes applying a time-weighted rerank to each node. Each time a node is retrieved, the time it was retrieved is recorded. This biases search to favor information that has not be returned in a query yet. <div class="highlight"><pre><code>from llama_index.core.postprocessor import TimeWeightedPostprocessor postprocessor = TimeWeightedPostprocessor(time_decay=0.99, top_k=1) postprocessor.postprocess_nodes(nodes) </code></pre></div> A full notebook guide is available <a href="../../../../examples/node_postprocessor/TimeWeightedPostprocessorDemo/">here</a>. <h2 id="beta-piinodepostprocessor">(Beta) PIINodePostprocessor<a class="headerlink" href="#beta-piinodepostprocessor" title="Permanent link">#</a></h2> The PII (Personal Identifiable Information) postprocssor removes information that might be a security risk. It does this by using NER (either with a dedicated NER model, or with a local LLM model). <h3 id="llm-version">LLM Version<a class="headerlink" href="#llm-version" title="Permanent link">#</a></h3> <div class="highlight"><pre><code>from llama_index.core.postprocessor import PIINodePostprocessor postprocessor = PIINodePostprocessor( service_context=service_context # this should be setup with an LLM you trust ) postprocessor.postprocess_nodes(nodes) </code></pre></div> <h3 id="ner-version">NER Version<a class="headerlink" href="#ner-version" title="Permanent link">#</a></h3> This version uses the default local model from Hugging Face that is loaded when you run <code>pipeline("ner")</code>. <div class="highlight"><pre><code>from llama_index.core.postprocessor import NERPIINodePostprocessor postprocessor = NERPIINodePostprocessor() postprocessor.postprocess_nodes(nodes) </code></pre></div> A full notebook guide for both can be found <a href="../../../../examples/node_postprocessor/PII/">here</a>. <h2 id="beta-prevnextnodepostprocessor">(Beta) PrevNextNodePostprocessor<a class="headerlink" href="#beta-prevnextnodepostprocessor" title="Permanent link">#</a></h2> Uses pre-defined settings to read the <code>Node</code> relationships and fetch either all nodes that come previously, next, or both. This is useful when you know the relationships point to important data (either before, after, or both) that should be sent to the LLM if that node is retrieved. <div class="highlight"><pre><code>from llama_index.core.postprocessor import PrevNextNodePostprocessor postprocessor = PrevNextNodePostprocessor( docstore=index.docstore, num_nodes=1, # number of nodes to fetch when looking forawrds or backwards mode="next", # can be either 'next', 'previous', or 'both' ) postprocessor.postprocess_nodes(nodes) </code></pre></div> <img alt="" src="../../../../_static/node_postprocessors/prev_next.png" /> <h2 id="beta-autoprevnextnodepostprocessor">(Beta) AutoPrevNextNodePostprocessor<a class="headerlink" href="#beta-autoprevnextnodepostprocessor" title="Permanent link">#</a></h2> The same as PrevNextNodePostprocessor, but lets the LLM decide the mode (next, previous, or both). <div class="highlight"><pre><code>from llama_index.core.postprocessor import AutoPrevNextNodePostprocessor postprocessor = AutoPrevNextNodePostprocessor( docstore=index.docstore, service_context=service_context, num_nodes=1, # number of nodes to fetch when looking forawrds or backwards) ) postprocessor.postprocess_nodes(nodes) </code></pre></div> A full example notebook is available <a href="../../../../examples/node_postprocessor/PrevNextPostprocessorDemo/">here</a>. <h2 id="beta-rankgpt">(Beta) RankGPT<a class="headerlink" href="#beta-rankgpt" title="Permanent link">#</a></h2> Uses RankGPT agent to rerank documents according to relevance. Returns the top N ranked nodes. <div class="highlight"><pre><code>from llama_index.postprocessor.rankgpt_rerank import RankGPTRerank postprocessor = RankGPTRerank(top_n=3, llm=OpenAI(model="gpt-3.5-turbo-16k")) postprocessor.postprocess_nodes(nodes) </code></pre></div> Full notebook guide is available <a href="../../../../examples/node_postprocessor/rankGPT/">here</a>. <h2 id="colbert-reranker">Colbert Reranker<a class="headerlink" href="#colbert-reranker" title="Permanent link">#</a></h2> Uses Colbert V2 model as a reranker to rerank documents according to the fine-grained similarity between query tokens and passage tokens. Returns the top N ranked nodes. <div class="highlight"><pre><code>from llama_index.postprocessor.colbert_rerank import ColbertRerank colbert_reranker = ColbertRerank( top_n=5, model="colbert-ir/colbertv2.0", tokenizer="colbert-ir/colbertv2.0", keep_retrieval_score=True, ) query_engine = index.as_query_engine( similarity_top_k=10, node_postprocessors=[colbert_reranker], ) response = query_engine.query( query_str, ) </code></pre></div> Full notebook guide is available <a href="../../../../examples/node_postprocessor/ColbertRerank/">here</a>. <h2 id="rankllm">rankLLM<a class="headerlink" href="#rankllm" title="Permanent link">#</a></h2> Uses models from <a href="https://github.com/castorini/rank_llm">rankLLM</a> to rerank documents. Returns the top N ranked nodes. <div class="highlight"><pre><code>from llama_index.postprocessor.rankllm_rerank import RankLLMRerank # RankZephyr reranker, return top 5 candidates reranker = RankLLMRerank(model="rank_zephyr", top_n=5) reranker.postprocess_nodes(nodes) </code></pre></div> A full <a href="../../../../examples/node_postprocessor/rankLLM/">notebook example is available</a>. <h2 id="all-notebooks">All Notebooks<a class="headerlink" href="#all-notebooks" title="Permanent link">#</a></h2> <ul> <li><a href="../../../../examples/node_postprocessor/OptimizerDemo/">Sentence Optimizer</a></li> <li><a href="../../../../examples/node_postprocessor/CohereRerank/">Cohere Rerank</a></li> <li><a href="../../../../examples/node_postprocessor/LLMReranker-Lyft-10k/">LLM Reranker Lyft 10k</a></li> <li><a href="../../../../examples/node_postprocessor/LLMReranker-Gatsby/">LLM Reranker Gatsby</a></li> <li><a href="../../../../examples/node_postprocessor/RecencyPostprocessorDemo/">Recency</a></li> <li><a href="../../../../examples/node_postprocessor/TimeWeightedPostprocessorDemo/">Time Weighted</a></li> <li><a href="../../../../examples/node_postprocessor/PII/">PII</a></li> <li><a href="../../../../examples/node_postprocessor/PrevNextPostprocessorDemo/">PrevNext</a></li> <li><a href="../../../../examples/node_postprocessor/MetadataReplacementDemo/">Metadata Replacement</a></li> <li><a href="../../../../examples/node_postprocessor/LongContextReorder/">Long Context Reorder</a></li> <li><a href="../../../../examples/node_postprocessor/rankGPT/">RankGPT</a></li> <li><a href="../../../../examples/node_postprocessor/ColbertRerank/">Colbert Rerank</a></li> <li><a href="../../../../examples/node_postprocessor/JinaRerank/">JinaAI Rerank</a></li> <li><a href="../../../../examples/cookbooks/mixedbread_reranker/">MixedBread Rerank</a></li> <li><a href="../../../../examples/node_postprocessor/rankLLM/">RankLLM</a></li> </ul> </article> </div> <script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script> </div> <button type="button" class="md-top md-icon" data-md-component="top" hidden> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8z"/></svg> Back to top </button> </main> <footer class="md-footer"> <nav class="md-footer__inner md-grid" aria-label="Footer" > <a href="../" class="md-footer__link md-footer__link--prev" aria-label="Previous: Node Postprocessor"> <div class="md-footer__button md-icon"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg> </div> <div class="md-footer__title"> Previous <div class="md-ellipsis"> Node Postprocessor </div> </div> </a> <a href="../../response_synthesizers/" class="md-footer__link md-footer__link--next" aria-label="Next: Response Synthesizer"> <div class="md-footer__title"> Next <div class="md-ellipsis"> Response Synthesizer </div> </div> <div class="md-footer__button md-icon"> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11z"/></svg> </div> </a> </nav> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <readthedocs-flyout position="bottom-left"></readthedocs-flyout> </div> </div> </footer> <img referrerpolicy="no-referrer-when-downgrade" src="https://static.scarf.sh/a.png?x-pxid=2b5669c2-eb91-4d0a-81d6-dc7238350598" width="1" height="1" /> </div> <div class="md-dialog" data-md-component="dialog"> <div class="md-dialog__inner md-typeset"></div> </div> <script id="__config" type="application/json">{"base": "../../../..", "features": ["navigation.instant", "navigation.tabs", "navigation.indexes", "navigation.top", "navigation.footer", "toc.follow", "content.code.copy", "search.suggest", "search.highlight"], "search": "../../../../assets/javascripts/workers/search.6ce7567c.min.js", "translations": {"clipboard.copied": "Copied to clipboard", "clipboard.copy": "Copy to clipboard", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.placeholder": "Type to start searching", "search.result.term.missing": "Missing", "select.version": "Select version"}}</script> <script src="../../../../assets/javascripts/bundle.83f73b43.min.js"></script> <script src="../../../../javascript/runllm.js"></script> <script src="../../../../javascript/algolia.js"></script> </body> </html>

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Node Postprocessor Modules - LlamaIndex