{"id":"https://openalex.org/W3185693672","doi":"https://doi.org/10.1145/3465401","title":"A Survey on Session-based Recommender Systems","display_name":"A Survey on Session-based Recommender Systems","publication_year":2021,"publication_date":"2021-07-18","ids":{"openalex":"https://openalex.org/W3185693672","doi":"https://doi.org/10.1145/3465401","mag":"3185693672"},"language":"en","primary_location":{"id":"doi:10.1145/3465401","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3465401","pdf_url":null,"source":{"id":"https://openalex.org/S157921468","display_name":"ACM Computing Surveys","issn_l":"0360-0300","issn":["0360-0300","1557-7341"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Computing Surveys","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/A5082317196","display_name":"Shoujin Wang","orcid":"https://orcid.org/0000-0003-1133-9379"},"institutions":[{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Shoujin Wang","raw_affiliation_strings":["Macquarie University, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Macquarie University, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000798681","display_name":"Longbing Cao","orcid":"https://orcid.org/0000-0003-1562-9429"},"institutions":[{"id":"https://openalex.org/I114017466","display_name":"University of Technology Sydney","ror":"https://ror.org/03f0f6041","country_code":"AU","type":"education","lineage":["https://openalex.org/I114017466"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Longbing Cao","raw_affiliation_strings":["University of Technology Sydney, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Technology Sydney, Australia","institution_ids":["https://openalex.org/I114017466"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100322712","display_name":"Yan Wang","orcid":"https://orcid.org/0000-0002-5344-1884"},"institutions":[{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Yan Wang","raw_affiliation_strings":["Macquarie University, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Macquarie University, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080744092","display_name":"Quan Z. Sheng","orcid":"https://orcid.org/0000-0002-3326-4147"},"institutions":[{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Quan Z. Sheng","raw_affiliation_strings":["Macquarie University, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Macquarie University, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010152619","display_name":"Mehmet A. Orgun","orcid":"https://orcid.org/0000-0002-7873-1562"},"institutions":[{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Mehmet A. Orgun","raw_affiliation_strings":["Macquarie University, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Macquarie University, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085254654","display_name":"Defu Lian","orcid":"https://orcid.org/0000-0002-3507-9607"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Defu Lian","raw_affiliation_strings":["University of Science and Technology of China, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Science and Technology of China, China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":100.2951,"has_fulltext":false,"cited_by_count":489,"citation_normalized_percentile":{"value":0.99987942,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"54","issue":"7","first_page":"1","last_page":"38"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":1.0,"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":1.0,"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":0.995199978351593,"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/T12761","display_name":"Data Stream Mining Techniques","score":0.9824000000953674,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/rss","display_name":"RSS","score":0.942766547203064},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8748472929000854},{"id":"https://openalex.org/keywords/session","display_name":"Session (web analytics)","score":0.8202286958694458},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.7247918844223022},{"id":"https://openalex.org/keywords/categorization","display_name":"Categorization","score":0.6766229867935181},{"id":"https://openalex.org/keywords/problem-statement","display_name":"Problem statement","score":0.46215561032295227},{"id":"https://openalex.org/keywords/term","display_name":"Term (time)","score":0.4516066014766693},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4170175790786743},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.40384119749069214},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.3491891622543335},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.33899393677711487},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1548353135585785},{"id":"https://openalex.org/keywords/management-science","display_name":"Management science","score":0.08466947078704834}],"concepts":[{"id":"https://openalex.org/C2385561","wikidata":"https://www.wikidata.org/wiki/Q45432","display_name":"RSS","level":2,"score":0.942766547203064},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8748472929000854},{"id":"https://openalex.org/C2779182362","wikidata":"https://www.wikidata.org/wiki/Q17126187","display_name":"Session (web analytics)","level":2,"score":0.8202286958694458},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.7247918844223022},{"id":"https://openalex.org/C94124525","wikidata":"https://www.wikidata.org/wiki/Q912550","display_name":"Categorization","level":2,"score":0.6766229867935181},{"id":"https://openalex.org/C202532154","wikidata":"https://www.wikidata.org/wiki/Q4374193","display_name":"Problem statement","level":2,"score":0.46215561032295227},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.4516066014766693},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4170175790786743},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.40384119749069214},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.3491891622543335},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.33899393677711487},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1548353135585785},{"id":"https://openalex.org/C539667460","wikidata":"https://www.wikidata.org/wiki/Q2414942","display_name":"Management science","level":1,"score":0.08466947078704834},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3465401","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3465401","pdf_url":null,"source":{"id":"https://openalex.org/S157921468","display_name":"ACM Computing Surveys","issn_l":"0360-0300","issn":["0360-0300","1557-7341"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Computing Surveys","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.699999988079071}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":128,"referenced_works":["https://openalex.org/W163868085","https://openalex.org/W281665770","https://openalex.org/W1508483349","https://openalex.org/W1652763299","https://openalex.org/W1690919088","https://openalex.org/W1978609982","https://openalex.org/W1985854669","https://openalex.org/W1989318262","https://openalex.org/W1994576156","https://openalex.org/W1998867815","https://openalex.org/W2008886893","https://openalex.org/W2013619732","https://openalex.org/W2042996020","https://openalex.org/W2050248182","https://openalex.org/W2066680194","https://openalex.org/W2078663894","https://openalex.org/W2080567541","https://openalex.org/W2081114853","https://openalex.org/W2100823613","https://openalex.org/W2108793219","https://openalex.org/W2110880609","https://openalex.org/W2114079787","https://openalex.org/W2116277390","https://openalex.org/W2140169576","https://openalex.org/W2163997062","https://openalex.org/W2165698076","https://openalex.org/W2170946952","https://openalex.org/W2171279286","https://openalex.org/W2295123179","https://openalex.org/W2415399965","https://openalex.org/W2462723856","https://openalex.org/W2474765392","https://openalex.org/W2475334473","https://openalex.org/W2479734128","https://openalex.org/W2486762327","https://openalex.org/W2500403796","https://openalex.org/W2507741081","https://openalex.org/W2508504774","https://openalex.org/W2512965516","https://openalex.org/W2513020047","https://openalex.org/W2514815078","https://openalex.org/W2591776232","https://openalex.org/W2613482391","https://openalex.org/W2618462075","https://openalex.org/W2625625560","https://openalex.org/W2625746539","https://openalex.org/W2626454364","https://openalex.org/W2654637199","https://openalex.org/W2739273093","https://openalex.org/W2739901700","https://openalex.org/W2745534091","https://openalex.org/W2746011824","https://openalex.org/W2747833218","https://openalex.org/W2750004028","https://openalex.org/W2753328553","https://openalex.org/W2759912774","https://openalex.org/W2766910351","https://openalex.org/W2767999355","https://openalex.org/W2773640334","https://openalex.org/W2775582110","https://openalex.org/W2777210537","https://openalex.org/W2782866613","https://openalex.org/W2783272285","https://openalex.org/W2783944588","https://openalex.org/W2788997749","https://openalex.org/W2792839191","https://openalex.org/W2795199972","https://openalex.org/W2799544270","https://openalex.org/W2808310571","https://openalex.org/W2809112621","https://openalex.org/W2809307135","https://openalex.org/W2886209086","https://openalex.org/W2887826002","https://openalex.org/W2899457523","https://openalex.org/W2902040508","https://openalex.org/W2913795167","https://openalex.org/W2914964166","https://openalex.org/W2951431594","https://openalex.org/W2953586472","https://openalex.org/W2953831886","https://openalex.org/W2963113314","https://openalex.org/W2963669159","https://openalex.org/W2964694324","https://openalex.org/W2964926209","https://openalex.org/W2972941122","https://openalex.org/W2973051287","https://openalex.org/W2982267219","https://openalex.org/W2986186789","https://openalex.org/W2987679642","https://openalex.org/W2988708240","https://openalex.org/W2990552222","https://openalex.org/W2996959725","https://openalex.org/W2997310152","https://openalex.org/W3031331881","https://openalex.org/W3033342855","https://openalex.org/W3035086011","https://openalex.org/W3035588407","https://openalex.org/W3035642447","https://openalex.org/W3038719422","https://openalex.org/W3048202504","https://openalex.org/W3080292067","https://openalex.org/W3093652648","https://openalex.org/W3093891819","https://openalex.org/W3094176367","https://openalex.org/W3096128342","https://openalex.org/W3098025954","https://openalex.org/W3098087397","https://openalex.org/W3098231197","https://openalex.org/W3100480425","https://openalex.org/W3101063193","https://openalex.org/W3101707147","https://openalex.org/W3102619277","https://openalex.org/W3102888024","https://openalex.org/W3102899483","https://openalex.org/W3104492324","https://openalex.org/W3105472188","https://openalex.org/W3108733701","https://openalex.org/W3122507327","https://openalex.org/W3134332122","https://openalex.org/W3178807794","https://openalex.org/W3192055963","https://openalex.org/W4244958123","https://openalex.org/W4252403066","https://openalex.org/W4288083766","https://openalex.org/W4293585414","https://openalex.org/W4300175872","https://openalex.org/W6630221451","https://openalex.org/W6632945487"],"related_works":["https://openalex.org/W426968574","https://openalex.org/W2365639220","https://openalex.org/W2382520895","https://openalex.org/W2393709043","https://openalex.org/W2080567403","https://openalex.org/W2539387137","https://openalex.org/W2374952201","https://openalex.org/W2374808384","https://openalex.org/W2385449752","https://openalex.org/W3177075132"],"abstract_inverted_index":{"Recommender":[0],"systems":[1,29],"(RSs)":[2],"have":[3,31,85,114],"been":[4,86,115],"playing":[5],"an":[6],"increasingly":[7],"important":[8],"role":[9],"for":[10,93],"informed":[11],"consumption,":[12],"services,":[13],"and":[14,21,47,72,101,117,150,169,173,192],"decision-making":[15],"in":[16,137,189],"the":[17,77,119,132,139,165,179],"overloaded":[18],"information":[19],"era":[20],"digitized":[22],"economy.":[23],"In":[24],"recent":[25],"years,":[26],"session-based":[27],"recommender":[28],"(SBRSs)":[30],"emerged":[32],"as":[33,44],"a":[34,158,175],"new":[35,186],"paradigm":[36],"of":[37,79,98,123,129,162,171],"RSs.":[38],"Different":[39],"from":[40],"other":[41],"RSs":[42,46,50],"such":[43],"content-based":[45],"collaborative":[48],"filtering-based":[49],"that":[51],"usually":[52],"model":[53],"long-term":[54],"yet":[55],"static":[56],"user":[57,66],"preferences,":[58],"SBRSs":[59,84,94,124,130],"aim":[60],"to":[61,68,76,109,177],"capture":[62],"short-term":[63],"but":[64],"dynamic":[65],"preferences":[67],"provide":[69],"more":[70],"timely":[71],"accurate":[73],"recommendations":[74],"sensitive":[75],"evolution":[78],"their":[80,151],"session":[81,154],"contexts.":[82],"Although":[83],"intensively":[87],"studied,":[88],"neither":[89],"unified":[90],"problem":[91,160],"statements":[92],"nor":[95],"in-depth":[96],"elaboration":[97],"SBRS":[99,112,140,181],"characteristics":[100,168],"challenges":[102,113,170],"are":[103],"available.":[104],"It":[105],"is":[106],"also":[107],"unclear":[108],"what":[110,118],"extent":[111],"addressed":[116],"overall":[120],"research":[121,187],"landscape":[122],"is.":[125],"This":[126],"comprehensive":[127],"review":[128],"addresses":[131],"above":[133],"aspects":[134],"by":[135],"exploring":[136],"depth":[138],"entities":[141],"(e.g.,":[142,145,153],"sessions),":[143],"behaviours":[144],"users\u2019":[146],"clicks":[147],"on":[148],"items),":[149],"properties":[152],"length).":[155],"We":[156],"propose":[157],"general":[159],"statement":[161],"SBRSs,":[163,172],"summarize":[164],"diversified":[166],"data":[167],"define":[174],"taxonomy":[176],"categorize":[178],"representative":[180],"research.":[182],"Finally,":[183],"we":[184],"discuss":[185],"opportunities":[188],"this":[190],"exciting":[191],"vibrant":[193],"area.":[194]},"counts_by_year":[{"year":2026,"cited_by_count":35},{"year":2025,"cited_by_count":99},{"year":2024,"cited_by_count":104},{"year":2023,"cited_by_count":120},{"year":2022,"cited_by_count":103},{"year":2021,"cited_by_count":28}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}
