{"id":"https://openalex.org/W2386888220","doi":"https://doi.org/10.1145/2939672.2939863","title":"The Million Domain Challenge","display_name":"The Million Domain Challenge","publication_year":2016,"publication_date":"2016-08-08","ids":{"openalex":"https://openalex.org/W2386888220","doi":"https://doi.org/10.1145/2939672.2939863","mag":"2386888220"},"language":"en","primary_location":{"id":"doi:10.1145/2939672.2939863","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2939672.2939863","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining","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/A5010145145","display_name":"Beidou Wang","orcid":"https://orcid.org/0000-0003-3458-2128"},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]},{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CA","CN"],"is_corresponding":true,"raw_author_name":"Beidou Wang","raw_affiliation_strings":["Zhejiang University and Simon Fraser University, Hangzhou, China"],"affiliations":[{"raw_affiliation_string":"Zhejiang University and Simon Fraser University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692","https://openalex.org/I18014758"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018267399","display_name":"Martin Ester","orcid":"https://orcid.org/0000-0001-7732-2815"},"institutions":[{"id":"https://openalex.org/I18014758","display_name":"Simon Fraser University","ror":"https://ror.org/0213rcc28","country_code":"CA","type":"education","lineage":["https://openalex.org/I18014758"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Martin Ester","raw_affiliation_strings":["Simson Fraser University, Burnaby, BC, Canada"],"affiliations":[{"raw_affiliation_string":"Simson Fraser University, Burnaby, BC, Canada","institution_ids":["https://openalex.org/I18014758"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090438387","display_name":"Yikang Liao","orcid":null},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yikang Liao","raw_affiliation_strings":["Zhejiang University, Hangzhou, China"],"affiliations":[{"raw_affiliation_string":"Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052757755","display_name":"Jiajun Bu","orcid":"https://orcid.org/0000-0002-1097-2044"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiajun Bu","raw_affiliation_strings":["Zhejiang University, Hangzhou, China"],"affiliations":[{"raw_affiliation_string":"Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100673743","display_name":"Yu Zhu","orcid":"https://orcid.org/0000-0001-9746-1695"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Zhu","raw_affiliation_strings":["Zhejiang University, Hangzhou, China"],"affiliations":[{"raw_affiliation_string":"Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065194313","display_name":"Ziyu Guan","orcid":"https://orcid.org/0000-0003-2413-4698"},"institutions":[{"id":"https://openalex.org/I37802460","display_name":"Northwest University","ror":"https://ror.org/00z3td547","country_code":"CN","type":"education","lineage":["https://openalex.org/I37802460"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ziyu Guan","raw_affiliation_strings":["Northwest University of China, Xian, China"],"affiliations":[{"raw_affiliation_string":"Northwest University of China, Xian, China","institution_ids":["https://openalex.org/I37802460"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061528283","display_name":"Deng Cai","orcid":"https://orcid.org/0000-0003-3444-8383"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Deng Cai","raw_affiliation_strings":["Zhejiang University, Hangzhou, China"],"affiliations":[{"raw_affiliation_string":"Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5010145145"],"corresponding_institution_ids":["https://openalex.org/I18014758","https://openalex.org/I76130692"],"apc_list":null,"apc_paid":null,"fwci":12.4303,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.98443884,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1895","last_page":"1904"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9990000128746033,"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"}},{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9911999702453613,"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/T11644","display_name":"Spam and Phishing Detection","score":0.9907000064849854,"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/computer-science","display_name":"Computer science","score":0.8209985494613647},{"id":"https://openalex.org/keywords/prioritization","display_name":"Prioritization","score":0.591606855392456},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5518473386764526},{"id":"https://openalex.org/keywords/domain","display_name":"Domain (mathematical analysis)","score":0.5349888205528259},{"id":"https://openalex.org/keywords/broadcasting","display_name":"Broadcasting (networking)","score":0.48975491523742676},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.47647950053215027},{"id":"https://openalex.org/keywords/information-overload","display_name":"Information overload","score":0.44928598403930664},{"id":"https://openalex.org/keywords/preference","display_name":"Preference","score":0.436771959066391},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.41074058413505554},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3683178424835205},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.33151715993881226},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.20242977142333984},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.08328655362129211}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8209985494613647},{"id":"https://openalex.org/C2777615720","wikidata":"https://www.wikidata.org/wiki/Q11888847","display_name":"Prioritization","level":2,"score":0.591606855392456},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5518473386764526},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.5349888205528259},{"id":"https://openalex.org/C110157686","wikidata":"https://www.wikidata.org/wiki/Q922122","display_name":"Broadcasting (networking)","level":2,"score":0.48975491523742676},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.47647950053215027},{"id":"https://openalex.org/C186625053","wikidata":"https://www.wikidata.org/wiki/Q1130191","display_name":"Information overload","level":2,"score":0.44928598403930664},{"id":"https://openalex.org/C2781249084","wikidata":"https://www.wikidata.org/wiki/Q908656","display_name":"Preference","level":2,"score":0.436771959066391},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.41074058413505554},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3683178424835205},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.33151715993881226},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.20242977142333984},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.08328655362129211},{"id":"https://openalex.org/C539667460","wikidata":"https://www.wikidata.org/wiki/Q2414942","display_name":"Management science","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2939672.2939863","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2939672.2939863","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.5400000214576721,"display_name":"Decent work and economic growth","id":"https://metadata.un.org/sdg/8"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W14873975","https://openalex.org/W24761630","https://openalex.org/W30495595","https://openalex.org/W102066540","https://openalex.org/W143867266","https://openalex.org/W156260471","https://openalex.org/W163868085","https://openalex.org/W174953902","https://openalex.org/W1501049730","https://openalex.org/W1778770750","https://openalex.org/W2005156851","https://openalex.org/W2006484294","https://openalex.org/W2009423697","https://openalex.org/W2025220724","https://openalex.org/W2040858299","https://openalex.org/W2057171152","https://openalex.org/W2067216076","https://openalex.org/W2076214575","https://openalex.org/W2079017450","https://openalex.org/W2101409192","https://openalex.org/W2113536712","https://openalex.org/W2114079787","https://openalex.org/W2116215616","https://openalex.org/W2117513046","https://openalex.org/W2118338035","https://openalex.org/W2118674552","https://openalex.org/W2124187902","https://openalex.org/W2128869159","https://openalex.org/W2129679514","https://openalex.org/W2138516811","https://openalex.org/W2143085547","https://openalex.org/W2154624311","https://openalex.org/W2171960770","https://openalex.org/W2293981264","https://openalex.org/W2339136142","https://openalex.org/W2405923393","https://openalex.org/W2901597048"],"related_works":["https://openalex.org/W2772628444","https://openalex.org/W1484355083","https://openalex.org/W2735929803","https://openalex.org/W4220714703","https://openalex.org/W3008845055","https://openalex.org/W2170391450","https://openalex.org/W4376854386","https://openalex.org/W2202724490","https://openalex.org/W4251329182","https://openalex.org/W2098758514"],"abstract_inverted_index":{"With":[0],"email":[1,11,77,104,116,147],"overload":[2],"becoming":[3],"a":[4,70,101,119,131,161,199],"billion-level":[5],"drag":[6],"on":[7,31,198],"the":[8,20,32,144,173,215],"economy,":[9],"personalized":[10],"prioritization":[12,117,148],"is":[13,78,83,130,169,195,208],"of":[14,23,28,39,67,69,153,176,184,191],"urgent":[15],"need":[16],"to":[17,65,86,95,124,171],"help":[18],"predict":[19],"importance":[21],"level":[22],"an":[24,36],"email.":[25,73],"Despite":[26],"lots":[27],"previous":[29],"effort":[30],"topic,":[33],"broadcast":[34,72,76,97,115,146],"email,":[35],"important":[37],"type":[38],"emails":[40],"with":[41],"its":[42],"unique":[43],"challenges":[44],"and":[45,81,189,207,212],"intriguing":[46],"opportunities,":[47],"has":[48,135],"been":[49,137],"overlooked.":[50],"The":[51],"most":[52],"salient":[53],"opportunity":[54],"lies":[55],"in":[56,100,118],"that":[57,134],"effective":[58,211],"collaborative":[59],"filtering":[60],"can":[61,109],"be":[62],"exploited":[63],"due":[64],"thousands":[66],"receivers":[68],"typical":[71],"However,":[74],"every":[75],"completely":[79],"cold":[80],"it":[82],"very":[84],"costly":[85],"obtain":[87],"users'":[88],"preference":[89],"feedback.":[90],"Fortunately,":[91],"there":[92],"exist":[93],"up":[94],"million-level":[96],"mailing":[98,107,121,154],"lists":[99,108,155],"real":[102,200],"life":[103],"system.":[105],"Similar":[106],"provide":[110],"useful":[111,127],"extra":[112,128],"information":[113,129],"for":[114],"target":[120],"list.":[122],"How":[123],"mine":[125],"such":[126],"challenging":[132],"problem":[133,159],"never":[136],"touched.":[138],"In":[139],"this":[140,158],"work,":[141],"we":[142],"propose":[143],"first":[145],"framework":[149,168],"considering":[150,179],"large":[151],"numbers":[152],"by":[156],"formulating":[157],"as":[160],"cross":[162],"domain":[163],"recommendation":[164],"problem.":[165],"An":[166],"optimization":[167],"proposed":[170],"select":[172],"optimal":[174],"set":[175],"source":[177],"domains":[178],"multiple":[180],"criteria":[181],"including":[182],"overlap":[183],"users,":[185],"feedback":[186],"pattern":[187],"similarity":[188],"coverage":[190],"users.":[192],"Our":[193],"method":[194],"thoroughly":[196],"evaluated":[197],"world":[201],"industrial":[202],"dataset":[203],"from":[204],"Samsung":[205],"Electronics":[206],"proved":[209],"highly":[210],"outperforms":[213],"all":[214],"baselines.":[216]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":4}],"updated_date":"2026-04-19T08:26:33.389920","created_date":"2025-10-10T00:00:00"}