CINXE.COM
Just a moment...
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "dl.acm.org",cType: 'managed',cRay: '9227be9c7ee6fd03',cH: 'Mx6HY7px7KW8b036VU74TawUoM1D0UUgppLDKCjUj9c-1742332517-1.2.1.1-d0XZ_6xhlcQ5GoxiQxOhGezOc6p97uwjUy.TX6tA_Tjy._cAf42hXQ3BSrFtkJ2o',cUPMDTk: "\/doi\/10.1145\/3166.3197?__cf_chl_tk=6BIHTzlxp83JhwmtK1JMz5wYrH6en1Zc3Ih0vR8_Uds-1742332517-1.0.1.1-MzQrmjF2s839DS6TRb_jNcXH3qb607Soo2sd9lCCO1c",cFPWv: 'g',cITimeS: '1742332517',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/doi\/10.1145\/3166.3197?__cf_chl_f_tk=6BIHTzlxp83JhwmtK1JMz5wYrH6en1Zc3Ih0vR8_Uds-1742332517-1.0.1.1-MzQrmjF2s839DS6TRb_jNcXH3qb607Soo2sd9lCCO1c",md: "HMmoqF9xritFnLgyMS2r6MUyvQ1Ou3_FUN3ufC9H3zg-1742332517-1.2.1.1-fHx8240zYgovE_UMbzmrTpof2S7_K6C.7yg9PgS3JzStAx025qEVA2l_p6b0jyDJdCQ7_KPMtgX1HcA4qdXC0p3lfoj6OGE8J1VhbeQXuh.QabMWVzTgs_MmLjgcKRs2U3nTiYoNLEian9mA407K9ARCCB.YbA9wAjzHz3Sr2fKzRvI.Un7TbZgagoSpo0CaZoaCuxBQ4CviRAhb74OSl9CAkIyqiEuTMjalj9_FPHmcZsrBaFj9EtdfyiNeK5tAeLafVMjApC4iISwbp3.fnsutv4giELz6mdO2o_1uh.IKsTuo1VEPEfn7twFErbZopnV52QRXHPAj_41JLTa5sAPfKQmqm04zPfLvlaayq57YkhXGhAdf.MLEvAFxj1kpYpa0ttjlPLgrCAEI3azUO04w489B68VHYZa_xbMi_QjsaOrSOGKEBeU5jK0vvmniK5R0OGDxadgllRl9J0Lmmksg6WUF62_bAOOpRQkR8vHZ05XlD_4_Wf8lgQmowQz0Vi_G6UpICbXwyUvda7t.vdi6rHKjsjlHLDqRHYZT9Igy.gomK4AkURyim43JeJ3pMoJEAXLfat7vF_M0Y8P02Zru7ZsRfygobgkCVsSw1QDpbfYTcQEOZcap30B3rWW_Xsg7U6Em8Z7kwsdZMIRcO83ZOWh1JmXBAVGBSB5olFdqF93rJISpoH7dpjsEg91lbPfHoV98k6cnGVX6aBgUsNOJe_B.RcIj5niJjtC3M66FzrpdWUtd9rPKdImBlpY5gfTGfORKKOU057_mKdHgrcxLX3_mnEivAG0LHQ3mhW2kXudfec6PHUBrEW2l5ZiT_l1gnC4w1Ey0ieEizbPz6fSdSMDbXCxk7MI5F_MYh.WusmK.v1pWgmYQBhnuYe.4DK49TAemQHdvwBFAainmkV8nzvColmWNhKNR1_I_iBCQmJEXmAan8VT5sIP8nWXsmdg9eWxDXDT2flIP1gPyDhw0HtklKMlMqTX3oQjUVuNkyrw6jlLwGOKApDybPG5tfPJPug7wDK1Ki2vYntEhv_rtwgGafFCye6mJTe13Lra8RJqumY9X_gCfg0MXEW_brkl7UMR0SytWlYS7xA.B12N57Z1Ijk0sNgNyvewg.DuiaPv9TIC152UelIXkj_baKODm2blkbkWD1Na2tLVcEAhxwzYatpNtxOfrQiz7LLYdHuBKP9vKKqWnrxvKIR1tQDYoAj1mPCKvkDI_S1.EJbxclF.FcLdTu663KGtgcaFFeaQ6fBuQzXrdgu9NY0B4",mdrd: "D2frNBnLsl7gjmpu0Noc3j1iJ7EEIJN64ZOrYnPTbBQ-1742332517-1.2.1.1-73dALPHp6uhijLqWeFXqsu4WJ_dmzO_.NVzHERPDG.VwDpDxVUEqfRhqLWeESc5D5DJ5sVvLICOPyUDNVWvMFZ6eW.SG_zUHb00cGASLP5txnXsam2Nf_r5t1zAcMM_Ue2tDQ5iO3xGcLvv335.55HpO5FeSzBNHr_TX4mvgq39tyYowBp_tnguAw6UvQGoY6WfHnIFJu6iidfJFXNsk.uTPXpnv9cBp0QpTB3pHmuneX7E9KX1bUVOnHlObMRVTd1Me62rF5oqK9OZ.utAcoDjG3o9EudW0noNUi2PHYBU.tQ.EcDhUxI5lzhek1dOeEDvyLmoU7dNN9V26X7InnWiUr5sQMP7jwvdrZvrUHY9yYtJPniRQzUQnybGXUSVfJldUPxeC2OuvAFwPLqa4G1cAQ9lxfWlFABZKlOAie9s8tZQNx4A.gi0iUUxRzmLzYYgtV5wJgnkBVvK_sbpChXDWnFORrY.LaF0sJQ9OzNRjTpX3xZKqGPyK8pJ2SdxQ8glHv5cPCG3A5UeiZr1exhFWYFa7MmUcMcPQcuH5rprB6dIcKyuDRNbOqYI1uTz426K5cNNzWfXOslNLBRcck1DzrCJ5fXRfvzIcuMeSZGQOAqsYYA3K6ugqDH3zbhZHhXyOQietEtYPR_SqlnnZVaVVSCfdxjqLrKb.j01eAl6DjfixxpcW0bkbnvRABNQFpEsiGPLwlXB6v8WjlxcKZDuRRHhmbNiHz6UCLLgm_e0uNZm8zZO8U03_A37tcQAn666IPiSkrJKZ0qsdzQCk7k1sQdVWlXKMz6whlcWwc5dJeCASyjjsrqVdqEQv8Sr4rzQwcHsIhv_TLBSvKEKQ407DC1iYePGIu2sGG3hOmqTepkpe.aXJooqpyXpnIiusorrTs7TQGKPiMUAAA9xXaN3kNIC0iw0Zb2upMS_NuQo0RxaFPw.BnUV7OJvYoWBmMe2nAQxZpEPxkkRDCGJ7AHn8yHLtgEo4GSSpNn04E8nvyPaCdaJQvE1oEsa9XQBgaoHzZJL2jlOUNwidfIGlGuwubAMyOLUhKB3O7RaBx8z7wFKs6CRpAUOZP779UudliYO5VWFHUr37V8C9jXeHynq1Gjh_6Uue.aV3zFC0DRoZQ4h1bmawDY6JjZwLkx9PFNWcAtydSEpTvFeWdGxffOIlajtvlgc7PQS32wXljkDaT_pvNXaPmZZzVKqKUctVYs3F9xivLatJZdDn639goESYBgDs.DWDW9N3zHcqa1YOpZ9ZQV7FNZ7uVpGWtZMRgGCkqXHT4SUtUVviskdEWqdf2wsglM4N84GU1_SQeL0eRmDGu8vJLZXcNS4biw7.hq_ydKkwWjW_B0xl7uyJ4T6HUtnMjpq1METjQ0LBOY.03dq3caK6HyhVUbgYG52FR1EAGXgflg5StH6N2xyIIWwz_aEORLVy0Q.rz4BtsvQqUAgaU5ZGfQpi0YC3U3e2_n1rgSaYeUp7q7B7Bk3V6lR0MmzGUkzR8i0fRilXOhNJJ.MUJLRSg6lsBg0Wc6eNFlZy1NS2GtAjR30EKDPnYUIPVZ12GzvrK7t.eywZJc_U2dSlLC7KiB8gwQWExNcdM0K9mbhahzKfwPano6Ua4VB5xCCIaCLZPgqSjiaSaWFnnvRjC09b9kaL_hWaet60phQycvPPtM7HYZVC7pwhGi_iEmP2fhTeSovWH3J_ia8IwCdL4mUPHdtVnXG2xA3Rc0AQ7rO8K5V1AChUWzxam8xNTUyYpJOD5b091yTAMLsWSIZyWGQDpSqvSpfy2KBRmtI4_0SBA5lRQooEEMTsSwxGVNGVjTQzlXZvX_HfYEO8snxH_JKIJYn5HGnHPQ58pyrqgZKRWg7l1cCI7XU8KyCLixMiILo.uh5HAetWv6wTMRya_9A9uZhd8kd0pH.90WnSPaV11VjfwmZvYscb9L_m2LSpBgTcy6Kc1ARGAcXjv.Uh4KGmSPciXj73RDyKUl55hU9qdw8W.dAtnJ3H2yeHtgVgCee_GURWu1PlPiR4xQ3Gka8P4cif2mvHmkPG"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=9227be9c7ee6fd03';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/doi\/10.1145\/3166.3197?__cf_chl_rt_tk=6BIHTzlxp83JhwmtK1JMz5wYrH6en1Zc3Ih0vR8_Uds-1742332517-1.0.1.1-MzQrmjF2s839DS6TRb_jNcXH3qb607Soo2sd9lCCO1c" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>