{"id":"https://openalex.org/W2752362133","doi":"https://doi.org/10.1287/mnsc.2018.3127","title":"When and How to Diversify\u2014A Multicategory Utility Model for Personalized Content Recommendation","display_name":"When and How to Diversify\u2014A Multicategory Utility Model for Personalized Content Recommendation","publication_year":2019,"publication_date":"2019-04-04","ids":{"openalex":"https://openalex.org/W2752362133","doi":"https://doi.org/10.1287/mnsc.2018.3127","mag":"2752362133"},"language":"en","primary_location":{"id":"doi:10.1287/mnsc.2018.3127","is_oa":false,"landing_page_url":"https://doi.org/10.1287/mnsc.2018.3127","pdf_url":null,"source":{"id":"https://openalex.org/S33323087","display_name":"Management Science","issn_l":"0025-1909","issn":["0025-1909","1526-5501"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315699","host_organization_name":"Institute for Operations Research and the Management Sciences","host_organization_lineage":["https://openalex.org/P4310315699"],"host_organization_lineage_names":["Institute for Operations Research and the Management Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Management Science","raw_type":"journal-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/A5005604394","display_name":"Yicheng Song","orcid":"https://orcid.org/0000-0002-9107-814X"},"institutions":[{"id":"https://openalex.org/I130238516","display_name":"University of Minnesota","ror":"https://ror.org/017zqws13","country_code":"US","type":"education","lineage":["https://openalex.org/I130238516"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yicheng Song","raw_affiliation_strings":["Carlson School of Management, University of Minnesota, Minneapolis, Minnesota 55455;"],"raw_orcid":"https://orcid.org/0000-0002-9107-814X","affiliations":[{"raw_affiliation_string":"Carlson School of Management, University of Minnesota, Minneapolis, Minnesota 55455;","institution_ids":["https://openalex.org/I130238516"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021557112","display_name":"Nachiketa Sahoo","orcid":"https://orcid.org/0000-0002-6827-8493"},"institutions":[{"id":"https://openalex.org/I111088046","display_name":"Boston University","ror":"https://ror.org/05qwgg493","country_code":"US","type":"education","lineage":["https://openalex.org/I111088046"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Nachiketa Sahoo","raw_affiliation_strings":["Questrom School of Business, Boston University, Boston, Massachusetts 02215;"],"raw_orcid":"https://orcid.org/0000-0002-6827-8493","affiliations":[{"raw_affiliation_string":"Questrom School of Business, Boston University, Boston, Massachusetts 02215;","institution_ids":["https://openalex.org/I111088046"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048076531","display_name":"Elie Ofek","orcid":"https://orcid.org/0000-0001-9585-0961"},"institutions":[{"id":"https://openalex.org/I136199984","display_name":"Harvard University","ror":"https://ror.org/03vek6s52","country_code":"US","type":"education","lineage":["https://openalex.org/I136199984"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Elie Ofek","raw_affiliation_strings":["Harvard Business School, Harvard University, Boston, Massachusetts 02163;"],"raw_orcid":"https://orcid.org/0000-0001-9585-0961","affiliations":[{"raw_affiliation_string":"Harvard Business School, Harvard University, Boston, Massachusetts 02163;","institution_ids":["https://openalex.org/I136199984"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5021557112"],"corresponding_institution_ids":["https://openalex.org/I111088046"],"apc_list":null,"apc_paid":null,"fwci":3.4538,"has_fulltext":false,"cited_by_count":55,"citation_normalized_percentile":{"value":0.92181557,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"65","issue":"8","first_page":"3737","last_page":"3757"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11161","display_name":"Consumer Market Behavior and Pricing","score":0.9994999766349792,"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":0.9994999766349792,"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/T10203","display_name":"Recommender Systems and Techniques","score":0.9993000030517578,"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/T10609","display_name":"Digital Marketing and Social Media","score":0.9894999861717224,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/clickstream","display_name":"Clickstream","score":0.8072394728660583},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7706689834594727},{"id":"https://openalex.org/keywords/session","display_name":"Session (web analytics)","score":0.6716011762619019},{"id":"https://openalex.org/keywords/diversification","display_name":"Diversification (marketing strategy)","score":0.634188711643219},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.6127899289131165},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.608292818069458},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4952308237552643},{"id":"https://openalex.org/keywords/variety","display_name":"Variety (cybernetics)","score":0.4655860960483551},{"id":"https://openalex.org/keywords/preference","display_name":"Preference","score":0.4575795531272888},{"id":"https://openalex.org/keywords/consumption","display_name":"Consumption (sociology)","score":0.4452956020832062},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.35401028394699097},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.31138187646865845},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.25070634484291077},{"id":"https://openalex.org/keywords/marketing","display_name":"Marketing","score":0.2261354625225067},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.20918777585029602},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.11414775252342224},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.0980963408946991},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.09508666396141052},{"id":"https://openalex.org/keywords/microeconomics","display_name":"Microeconomics","score":0.09324455261230469}],"concepts":[{"id":"https://openalex.org/C138744977","wikidata":"https://www.wikidata.org/wiki/Q5132438","display_name":"Clickstream","level":5,"score":0.8072394728660583},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7706689834594727},{"id":"https://openalex.org/C2779182362","wikidata":"https://www.wikidata.org/wiki/Q17126187","display_name":"Session (web analytics)","level":2,"score":0.6716011762619019},{"id":"https://openalex.org/C180916674","wikidata":"https://www.wikidata.org/wiki/Q3711935","display_name":"Diversification (marketing strategy)","level":2,"score":0.634188711643219},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.6127899289131165},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.608292818069458},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4952308237552643},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.4655860960483551},{"id":"https://openalex.org/C2781249084","wikidata":"https://www.wikidata.org/wiki/Q908656","display_name":"Preference","level":2,"score":0.4575795531272888},{"id":"https://openalex.org/C30772137","wikidata":"https://www.wikidata.org/wiki/Q5164762","display_name":"Consumption (sociology)","level":2,"score":0.4452956020832062},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.35401028394699097},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.31138187646865845},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.25070634484291077},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.2261354625225067},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.20918777585029602},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.11414775252342224},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.0980963408946991},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.09508666396141052},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.09324455261230469},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social 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/C127613066","wikidata":"https://www.wikidata.org/wiki/Q557770","display_name":"Web API","level":4,"score":0.0},{"id":"https://openalex.org/C130436687","wikidata":"https://www.wikidata.org/wiki/Q7978591","display_name":"Web modeling","level":3,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1287/mnsc.2018.3127","is_oa":false,"landing_page_url":"https://doi.org/10.1287/mnsc.2018.3127","pdf_url":null,"source":{"id":"https://openalex.org/S33323087","display_name":"Management Science","issn_l":"0025-1909","issn":["0025-1909","1526-5501"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315699","host_organization_name":"Institute for Operations Research and the Management Sciences","host_organization_lineage":["https://openalex.org/P4310315699"],"host_organization_lineage_names":["Institute for Operations Research and the Management Sciences"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Management Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":56,"referenced_works":["https://openalex.org/W1532325895","https://openalex.org/W1557681559","https://openalex.org/W1582340466","https://openalex.org/W1864134408","https://openalex.org/W1966553486","https://openalex.org/W1976161616","https://openalex.org/W1983059019","https://openalex.org/W1987256615","https://openalex.org/W1992549066","https://openalex.org/W1995500779","https://openalex.org/W2004657139","https://openalex.org/W2022076440","https://openalex.org/W2047770762","https://openalex.org/W2048437343","https://openalex.org/W2049670925","https://openalex.org/W2060796982","https://openalex.org/W2071729415","https://openalex.org/W2072312726","https://openalex.org/W2087316481","https://openalex.org/W2090317466","https://openalex.org/W2097951507","https://openalex.org/W2099213975","https://openalex.org/W2099773105","https://openalex.org/W2111094216","https://openalex.org/W2112430581","https://openalex.org/W2114095981","https://openalex.org/W2116206254","https://openalex.org/W2121252294","https://openalex.org/W2125441033","https://openalex.org/W2135899575","https://openalex.org/W2144807535","https://openalex.org/W2148503729","https://openalex.org/W2150317453","https://openalex.org/W2155106456","https://openalex.org/W2155912844","https://openalex.org/W2159094788","https://openalex.org/W2159155347","https://openalex.org/W2170209906","https://openalex.org/W2171960770","https://openalex.org/W2210543184","https://openalex.org/W2326126559","https://openalex.org/W2332764446","https://openalex.org/W2336898155","https://openalex.org/W2404122451","https://openalex.org/W2405494619","https://openalex.org/W2508625104","https://openalex.org/W2515786358","https://openalex.org/W2964296635","https://openalex.org/W3121698046","https://openalex.org/W3122868618","https://openalex.org/W3125836118","https://openalex.org/W3125944471","https://openalex.org/W3144406692","https://openalex.org/W3147409906","https://openalex.org/W4245605774","https://openalex.org/W4246215155"],"related_works":["https://openalex.org/W4307100037","https://openalex.org/W2968745142","https://openalex.org/W2809363009","https://openalex.org/W2348159088","https://openalex.org/W3000241359","https://openalex.org/W4231377631","https://openalex.org/W2164136269","https://openalex.org/W2165708653","https://openalex.org/W7602594","https://openalex.org/W4206478093"],"abstract_inverted_index":{"Sometimes":[0],"we":[1,68,292],"desire":[2],"change,":[3],"a":[4,43,76,82,115,121,156,176,187,205,210,289],"break":[5],"from":[6,53,87,155,209],"the":[7,48,63,79,98,104,108,131,146,184,192,202,219,263,274,298,310,327,338],"same,":[8],"or":[9],"an":[10,173,229],"opportunity":[11],"to":[12,29,103,139,159,170,181,195,217,223,321],"fulfill":[13],"different":[14,125,226],"aspects":[15],"of":[16,50,65,81,84,100,127,179,186,228],"our":[17,235],"needs.":[18],"Noting":[19],"that":[20,70,73,119,234,239,270,294],"consumers":[21],"seek":[22],"variety,":[23],"several":[24],"approaches":[25],"have":[26],"been":[27],"developed":[28],"diversify":[30],"items":[31,102,180],"recommended":[32,157,198],"by":[33,71,95,107,277,344],"personalized":[34,285],"recommender":[35,286],"systems.":[36,287,348],"However,":[37],"current":[38],"diversification":[39,260],"strategies":[40],"operate":[41],"under":[42],"one-shot":[44],"paradigm":[45],"without":[46],"considering":[47],"evolution":[49],"preferences":[51],"resulting":[52],"recent":[54],"consumption.":[55],"Therefore,":[56],"such":[57],"methods":[58],"often":[59],"sacrifice":[60],"accuracy.":[61],"In":[62],"context":[64],"online":[66,230],"media,":[67],"show":[69],"recognizing":[72],"consumption":[74],"in":[75,303,324,332],"session":[77,188],"is":[78,112,194],"result":[80,302],"sequence":[83],"utility-maximizing":[85],"selections":[86],"various":[88],"categories,":[89],"one":[90,135],"can":[91],"increase":[92],"recommendation":[93],"accuracy":[94],"dynamically":[96],"tailoring":[97],"diversity":[99,105,269,275],"suggested":[101],"sought":[106,276],"consumer.":[109],"Our":[110],"approach":[111,236,300],"based":[113],"on":[114,197,241],"multicategory":[116],"utility":[117],"model":[118,203],"captures":[120],"consumer\u2019s":[122],"preference":[123],"for":[124,326],"categories":[126],"content,":[128],"how":[129,145,172,190],"quickly":[130],"consumer":[132,147],"satiates":[133],"with":[134,142,153,268],"category":[136],"and":[137,144,189,214,250,313,329,335],"wishes":[138],"substitute":[140],"it":[141,216],"another,":[143],"trades":[148],"off":[149],"costly":[150],"search":[151],"efforts":[152],"selecting":[154],"list":[158],"discover":[160],"new":[161],"content.":[162,199],"Taken":[163],"together,":[164],"these":[165],"three":[166],"elements":[167],"allow":[168],"us":[169],"characterize":[171],"individual":[174,193],"selects":[175],"diverse":[177],"set":[178,208],"consume":[182],"over":[183],"course":[185],"likely":[191],"click":[196],"We":[200,232],"estimate":[201,293],"using":[204,258,297],"clickstream":[206],"data":[207],"large":[211],"media":[212],"outlet":[213],"apply":[215],"determine":[218],"most":[220],"relevant":[221],"content":[222,267,296],"recommend":[224],"at":[225,309,337],"stages":[227],"session.":[231],"find":[233],"generates":[237],"recommendations":[238],"are":[240],"average":[242],"about":[243,251],"10%":[244],"more":[245,253,271],"accurate":[246,254],"than":[247,255,283],"optimized":[248],"alternatives":[249],"25%":[252],"those":[256],"diversified":[257],"existing":[259],"strategies.":[261],"Moreover,":[262],"proposed":[264,299],"method":[265],"recommends":[266],"closely":[272],"matches":[273],"readers,":[278],"exhibiting":[279],"lower":[280],"concentration\u2013diversification":[281],"bias":[282],"other":[284],"Using":[288],"policy":[290],"simulation,":[291],"recommending":[295],"would":[301],"visitors":[304],"reading":[305],"23%":[306],"additional":[307],"articles":[308],"studied":[311],"website":[312],"deriving":[314],"35%":[315],"higher":[316],"utility.":[317],"This":[318,340],"could":[319],"lead":[320],"immediate":[322],"gains":[323],"revenue":[325],"publisher":[328],"longer-term":[330],"improvements":[331],"customer":[333],"satisfaction":[334],"retention":[336],"site.":[339],"paper":[341],"was":[342],"accepted":[343],"Chris":[345],"Forman,":[346],"information":[347]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":12},{"year":2023,"cited_by_count":13},{"year":2022,"cited_by_count":7},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":6},{"year":2018,"cited_by_count":1}],"updated_date":"2026-08-28T12:50:07.497085","created_date":"2025-10-10T00:00:00"}
