{"id":"https://openalex.org/W2063094735","doi":"https://doi.org/10.1145/2766462.2767708","title":"Optimal Aggregation Policy for Reducing Tail Latency of Web Search","display_name":"Optimal Aggregation Policy for Reducing Tail Latency of Web Search","publication_year":2015,"publication_date":"2015-08-04","ids":{"openalex":"https://openalex.org/W2063094735","doi":"https://doi.org/10.1145/2766462.2767708","mag":"2063094735"},"language":"en","primary_location":{"id":"doi:10.1145/2766462.2767708","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2766462.2767708","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5010193173","display_name":"Jeong-Min Yun","orcid":null},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Jeong-Min Yun","raw_affiliation_strings":["Pohang University of Science and Technology, Pohang, South Korea"],"affiliations":[{"raw_affiliation_string":"Pohang University of Science and Technology, Pohang, South Korea","institution_ids":["https://openalex.org/I123900574"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040302174","display_name":"Yuxiong He","orcid":"https://orcid.org/0000-0003-0478-8854"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yuxiong He","raw_affiliation_strings":["Microsoft Research, Redmond, WA, USA"],"affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077856625","display_name":"Sameh Elnikety","orcid":"https://orcid.org/0000-0003-3478-2824"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sameh Elnikety","raw_affiliation_strings":["Microsoft Research, Redmond, WA, USA"],"affiliations":[{"raw_affiliation_string":"Microsoft Research, Redmond, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5000834239","display_name":"Shaolei Ren","orcid":"https://orcid.org/0000-0001-9003-4324"},"institutions":[{"id":"https://openalex.org/I19700959","display_name":"Florida International University","ror":"https://ror.org/02gz6gg07","country_code":"US","type":"education","lineage":["https://openalex.org/I19700959"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shaolei Ren","raw_affiliation_strings":["Florida International University, Miami, FL, USA"],"affiliations":[{"raw_affiliation_string":"Florida International University, Miami, FL, USA","institution_ids":["https://openalex.org/I19700959"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5010193173"],"corresponding_institution_ids":["https://openalex.org/I123900574"],"apc_list":null,"apc_paid":null,"fwci":7.0766,"has_fulltext":false,"cited_by_count":29,"citation_normalized_percentile":{"value":0.96473939,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"63","last_page":"72"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11161","display_name":"Consumer Market Behavior and Pricing","score":0.9958999752998352,"subfield":{"id":"https://openalex.org/subfields/1406","display_name":"Marketing"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11161","display_name":"Consumer Market Behavior and Pricing","score":0.9958999752998352,"subfield":{"id":"https://openalex.org/subfields/1406","display_name":"Marketing"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12288","display_name":"Optimization and Search Problems","score":0.9926000237464905,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12016","display_name":"Web Data Mining and Analysis","score":0.9909999966621399,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/news-aggregator","display_name":"News aggregator","score":0.9452430009841919},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8310565948486328},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.7376720905303955},{"id":"https://openalex.org/keywords/search-engine","display_name":"Search engine","score":0.5648595094680786},{"id":"https://openalex.org/keywords/partition","display_name":"Partition (number theory)","score":0.5204175114631653},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.4927411377429962},{"id":"https://openalex.org/keywords/response-time","display_name":"Response time","score":0.4341215491294861},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2664927840232849},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.20974159240722656},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.1454535722732544}],"concepts":[{"id":"https://openalex.org/C180505990","wikidata":"https://www.wikidata.org/wiki/Q498267","display_name":"News aggregator","level":2,"score":0.9452430009841919},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8310565948486328},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.7376720905303955},{"id":"https://openalex.org/C97854310","wikidata":"https://www.wikidata.org/wiki/Q19541","display_name":"Search engine","level":2,"score":0.5648595094680786},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.5204175114631653},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.4927411377429962},{"id":"https://openalex.org/C19012869","wikidata":"https://www.wikidata.org/wiki/Q578372","display_name":"Response time","level":2,"score":0.4341215491294861},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2664927840232849},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.20974159240722656},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.1454535722732544},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.0},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2766462.2767708","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2766462.2767708","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W1527781663","https://openalex.org/W1970380778","https://openalex.org/W1982063824","https://openalex.org/W1982584634","https://openalex.org/W1991360400","https://openalex.org/W1992864846","https://openalex.org/W2008684356","https://openalex.org/W2015184777","https://openalex.org/W2028083097","https://openalex.org/W2032395777","https://openalex.org/W2032866865","https://openalex.org/W2035417994","https://openalex.org/W2039678943","https://openalex.org/W2042407381","https://openalex.org/W2072156548","https://openalex.org/W2073965851","https://openalex.org/W2075279061","https://openalex.org/W2076214367","https://openalex.org/W2076471773","https://openalex.org/W2093270409","https://openalex.org/W2108387401","https://openalex.org/W2114504293","https://openalex.org/W2127175638","https://openalex.org/W2137151464","https://openalex.org/W2139230733","https://openalex.org/W2143713672","https://openalex.org/W2154461554","https://openalex.org/W2160440046","https://openalex.org/W2162027163","https://openalex.org/W2164740236","https://openalex.org/W2168006621","https://openalex.org/W2170707555","https://openalex.org/W4234946335","https://openalex.org/W4242648275","https://openalex.org/W4251765081"],"related_works":["https://openalex.org/W3036238356","https://openalex.org/W2603387358","https://openalex.org/W2767445978","https://openalex.org/W2570892890","https://openalex.org/W3092831610","https://openalex.org/W2012785328","https://openalex.org/W4206057490","https://openalex.org/W962287279","https://openalex.org/W3112734853","https://openalex.org/W169895511"],"abstract_inverted_index":{"A":[0],"web":[1],"search":[2,90,94,171],"engine":[3],"often":[4],"employs":[5],"partition-aggregate":[6],"architecture,":[7],"where":[8],"an":[9,53,156],"aggregator":[10],"propagates":[11],"a":[12,109,169,173],"user":[13],"query":[14,48],"to":[15,43,93,159,180,190,200],"all":[16],"index":[17],"serving":[18],"nodes":[19],"(ISNs)":[20],"and":[21,50,63,68,142,177],"collects":[22],"the":[23,33,37,115,122,182,193],"responses":[24,129],"from":[25,168],"them.":[26],"An":[27],"aggregation":[28,54,83,183],"policy":[29,55,135,158,194],"determines":[30],"how":[31],"long":[32],"aggregators":[34,69,141,150],"wait":[35],"for":[36,136],"ISNs":[38,65,75],"before":[39],"returning":[40],"aggregated":[41],"results":[42,186],"users,":[44],"crucially":[45],"affecting":[46],"both":[47],"latency":[49,60,88,197],"quality.":[51],"Designing":[52],"is,":[56],"however,":[57],"challenging:":[58],"Response":[59],"among":[61,64],"queries":[62,91],"varies":[66],"significantly,":[67],"lack":[70],"of":[71,89,117,130,140],"knowledge":[72],"about":[73],"when":[74,146],"will":[76],"respond.":[77],"In":[78],"this":[79],"paper,":[80],"we":[81,112],"propose":[82],"policies":[84],"that":[85,188],"minimize":[86],"tail":[87,196],"subject":[92],"quality":[95,205],"service":[96],"level":[97],"agreements":[98],"(SLAs),":[99],"combining":[100],"data-driven":[101],"offline":[102,123],"analysis":[103],"with":[104,108],"online":[105],"processing.":[106],"Beginning":[107],"single":[110],"aggregator,":[111],"formally":[113],"prove":[114,143],"optimality":[116,145],"our":[118,134],"policy:":[119],"It":[120],"achieves":[121],"optimal":[124],"result":[125],"without":[126],"knowing":[127],"future":[128],"ISNs.":[131],"We":[132,153,164],"extend":[133],"commonly-used":[137],"hierarchical":[138],"levels":[139],"its":[144],"messaging":[147,162],"times":[148],"between":[149],"are":[151],"known.":[152],"also":[154],"present":[155],"empirically-effective":[157],"address":[160],"unknown":[161],"time.":[163],"use":[165],"production":[166],"traces":[167],"commercial":[170,174],"engine,":[172,176],"advertisement":[175],"synthetic":[178],"workloads":[179],"evaluate":[181],"policy.":[184],"The":[185],"show":[187],"compared":[189],"prior":[191],"work,":[192],"reduces":[195],"by":[198],"up":[199],"40%":[201],"while":[202],"satisfying":[203],"same":[204],"SLAs.":[206]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":5},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":7},{"year":2016,"cited_by_count":2}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}