{"id":"https://openalex.org/W2811138351","doi":"https://doi.org/10.1145/3167132.3167276","title":"Investigating serendipity in recommender systems based on real user feedback","display_name":"Investigating serendipity in recommender systems based on real user feedback","publication_year":2018,"publication_date":"2018-04-09","ids":{"openalex":"https://openalex.org/W2811138351","doi":"https://doi.org/10.1145/3167132.3167276","mag":"2811138351"},"language":"en","primary_location":{"id":"doi:10.1145/3167132.3167276","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3167132.3167276","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 33rd Annual ACM Symposium on Applied Computing","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/A5049179047","display_name":"Denis Kotkov","orcid":"https://orcid.org/0000-0003-4729-1995"},"institutions":[{"id":"https://openalex.org/I94722563","display_name":"University of Jyv\u00e4skyl\u00e4","ror":"https://ror.org/05n3dz165","country_code":"FI","type":"education","lineage":["https://openalex.org/I94722563"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Denis Kotkov","raw_affiliation_strings":["University of Jyvaskyla, Finland"],"affiliations":[{"raw_affiliation_string":"University of Jyvaskyla, Finland","institution_ids":["https://openalex.org/I94722563"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037387341","display_name":"Joseph A. Konstan","orcid":"https://orcid.org/0000-0002-7788-2748"},"institutions":[{"id":"https://openalex.org/I2800403580","display_name":"University of Minnesota System","ror":"https://ror.org/03grvy078","country_code":"US","type":"education","lineage":["https://openalex.org/I2800403580"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joseph A. Konstan","raw_affiliation_strings":["University of Minnesota"],"affiliations":[{"raw_affiliation_string":"University of Minnesota","institution_ids":["https://openalex.org/I2800403580"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086649532","display_name":"Qian Zhao","orcid":"https://orcid.org/0000-0002-3758-237X"},"institutions":[{"id":"https://openalex.org/I2800403580","display_name":"University of Minnesota System","ror":"https://ror.org/03grvy078","country_code":"US","type":"education","lineage":["https://openalex.org/I2800403580"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Qian Zhao","raw_affiliation_strings":["University of Minnesota"],"affiliations":[{"raw_affiliation_string":"University of Minnesota","institution_ids":["https://openalex.org/I2800403580"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056432204","display_name":"Jari Veijalainen","orcid":null},"institutions":[{"id":"https://openalex.org/I94722563","display_name":"University of Jyv\u00e4skyl\u00e4","ror":"https://ror.org/05n3dz165","country_code":"FI","type":"education","lineage":["https://openalex.org/I94722563"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Jari Veijalainen","raw_affiliation_strings":["University of Jyvaskyla, Finland"],"affiliations":[{"raw_affiliation_string":"University of Jyvaskyla, Finland","institution_ids":["https://openalex.org/I94722563"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5049179047"],"corresponding_institution_ids":["https://openalex.org/I94722563"],"apc_list":null,"apc_paid":null,"fwci":17.2726,"has_fulltext":false,"cited_by_count":95,"citation_normalized_percentile":{"value":0.99120276,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"1341","last_page":"1350"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T12101","display_name":"Advanced Bandit Algorithms Research","score":0.9932000041007996,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11165","display_name":"Image and Video Quality Assessment","score":0.9832000136375427,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/serendipity","display_name":"Serendipity","score":0.9961385726928711},{"id":"https://openalex.org/keywords/movielens","display_name":"MovieLens","score":0.8406404256820679},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.7387211918830872},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7023991346359253},{"id":"https://openalex.org/keywords/preference","display_name":"Preference","score":0.5668975114822388},{"id":"https://openalex.org/keywords/novelty","display_name":"Novelty","score":0.5567519068717957},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5545163750648499},{"id":"https://openalex.org/keywords/relevance","display_name":"Relevance (law)","score":0.5493931770324707},{"id":"https://openalex.org/keywords/variation","display_name":"Variation (astronomy)","score":0.42269033193588257},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.41802138090133667},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3667892813682556},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.19755420088768005},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.16647785902023315},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12453067302703857},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.06817153096199036},{"id":"https://openalex.org/keywords/social-psychology","display_name":"Social psychology","score":0.06688570976257324},{"id":"https://openalex.org/keywords/epistemology","display_name":"Epistemology","score":0.06686538457870483}],"concepts":[{"id":"https://openalex.org/C2779119418","wikidata":"https://www.wikidata.org/wiki/Q166039","display_name":"Serendipity","level":2,"score":0.9961385726928711},{"id":"https://openalex.org/C2776156558","wikidata":"https://www.wikidata.org/wiki/Q4353746","display_name":"MovieLens","level":4,"score":0.8406404256820679},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.7387211918830872},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7023991346359253},{"id":"https://openalex.org/C2781249084","wikidata":"https://www.wikidata.org/wiki/Q908656","display_name":"Preference","level":2,"score":0.5668975114822388},{"id":"https://openalex.org/C2778738651","wikidata":"https://www.wikidata.org/wiki/Q16546687","display_name":"Novelty","level":2,"score":0.5567519068717957},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5545163750648499},{"id":"https://openalex.org/C158154518","wikidata":"https://www.wikidata.org/wiki/Q7310970","display_name":"Relevance (law)","level":2,"score":0.5493931770324707},{"id":"https://openalex.org/C2778334786","wikidata":"https://www.wikidata.org/wiki/Q1586270","display_name":"Variation (astronomy)","level":2,"score":0.42269033193588257},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.41802138090133667},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3667892813682556},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.19755420088768005},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.16647785902023315},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12453067302703857},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.06817153096199036},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.06688570976257324},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.06686538457870483},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3167132.3167276","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3167132.3167276","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 33rd Annual ACM Symposium on Applied Computing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320311269","display_name":"KAUTE-S\u00e4\u00e4ti\u00f6","ror":"https://ror.org/00zwv5854"},{"id":"https://openalex.org/F4320323168","display_name":"Jyv\u00e4skyl\u00e4n Yliopisto","ror":"https://ror.org/05n3dz165"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W790455547","https://openalex.org/W824612272","https://openalex.org/W1547244403","https://openalex.org/W1560799855","https://openalex.org/W1581231885","https://openalex.org/W1583059097","https://openalex.org/W1912855465","https://openalex.org/W1971040550","https://openalex.org/W1982847643","https://openalex.org/W1996533415","https://openalex.org/W2007636657","https://openalex.org/W2009718036","https://openalex.org/W2031768829","https://openalex.org/W2033213271","https://openalex.org/W2035953455","https://openalex.org/W2045453095","https://openalex.org/W2049670925","https://openalex.org/W2105953200","https://openalex.org/W2108790711","https://openalex.org/W2111591037","https://openalex.org/W2123830992","https://openalex.org/W2142635246","https://openalex.org/W2161676175","https://openalex.org/W2341865734","https://openalex.org/W2373122082","https://openalex.org/W2410983379","https://openalex.org/W2476960546","https://openalex.org/W2514091133","https://openalex.org/W2562236173","https://openalex.org/W2620702127","https://openalex.org/W4256183008","https://openalex.org/W4379510236"],"related_works":["https://openalex.org/W4312541699","https://openalex.org/W2524663498","https://openalex.org/W2113380565","https://openalex.org/W2781850661","https://openalex.org/W4233347881","https://openalex.org/W3004286290","https://openalex.org/W2169020911","https://openalex.org/W4242809128","https://openalex.org/W2297964623","https://openalex.org/W2907069037"],"abstract_inverted_index":{"Over":[0],"the":[1,11,22,42,80,90,119],"past":[2],"several":[3],"years,":[4],"research":[5],"in":[6,79,98,180,204],"recommender":[7,92],"systems":[8],"has":[9,58],"emphasized":[10],"importance":[12],"of":[13,24,48,70,82,89,104,115,121,130,152,160,165,194],"serendipity,":[14,195],"but":[15,127],"there":[16],"is":[17,34,209],"still":[18,35],"no":[19],"consensus":[20],"on":[21,107,170],"definition":[23,193],"this":[25,62,150,207],"concept":[26],"and":[27,53,72,100,117,162,173,202],"whether":[28],"serendipitous":[29,141,187],"items":[30],"should":[31],"be":[32],"recommended":[33],"not":[36,148],"a":[37],"well-addressed":[38],"question.":[39],"According":[40],"to":[41,144,184,189,211],"most":[43,113],"common":[44],"definition,":[45],"serendipity":[46,71,105,116,122,166],"consists":[47],"three":[49],"components:":[50],"relevance,":[51],"novelty":[52],"unexpectedness,":[54],"where":[55],"each":[56],"component":[57],"multiple":[59],"variations.":[60],"In":[61],"paper,":[63],"we":[64],"looked":[65],"at":[66,190],"eight":[67],"different":[68,158,163,168],"definitions":[69,103,145],"asked":[73],"users":[74,88,178,200],"how":[75],"they":[76],"perceived":[77],"them":[78],"context":[81],"movie":[83,91],"recommendations.":[84],"We":[85,110,135,154],"surveyed":[86],"475":[87],"system,":[93,182,206],"MovieLens":[94],"regarding":[95],"2146":[96],"movies":[97,142,177],"total":[99],"compared":[101],"those":[102],"based":[106],"user":[108,125,133,174],"responses.":[109],"found":[111,136,156],"that":[112,146,157,199],"kinds":[114,164],"all":[118],"variations":[120,159],"components":[123],"broaden":[124],"preferences,":[126],"one":[128,192],"variation":[129,151],"unexpectedness":[131,161],"hurts":[132],"satisfaction.":[134,175],"effective":[137],"features":[138],"for":[139],"detecting":[140],"according":[143,188],"do":[147],"include":[149],"unexpectedness.":[153],"also":[155],"have":[167],"effects":[169],"preference":[171],"broadening":[172],"Among":[176],"rate":[179],"our":[181,205],"up":[183,210],"8.5%":[185],"are":[186],"least":[191],"while":[196],"among":[197],"recommendations":[198],"receive":[201],"follow":[203],"ratio":[208],"69%.":[212]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":15},{"year":2023,"cited_by_count":16},{"year":2022,"cited_by_count":9},{"year":2021,"cited_by_count":11},{"year":2020,"cited_by_count":14},{"year":2019,"cited_by_count":11},{"year":2018,"cited_by_count":6}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}