{"id":"https://openalex.org/W4313428087","doi":"https://doi.org/10.1109/csit56902.2022.10000782","title":"Offline evaluation of the serendipity in recommendation systems","display_name":"Offline evaluation of the serendipity in recommendation systems","publication_year":2022,"publication_date":"2022-11-10","ids":{"openalex":"https://openalex.org/W4313428087","doi":"https://doi.org/10.1109/csit56902.2022.10000782"},"language":"en","primary_location":{"id":"doi:10.1109/csit56902.2022.10000782","is_oa":false,"landing_page_url":"https://doi.org/10.1109/csit56902.2022.10000782","pdf_url":null,"source":{"id":"https://openalex.org/S4363608244","display_name":"2022 IEEE 17th International Conference on Computer Sciences and Information Technologies (CSIT)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE 17th International Conference on Computer Sciences and Information Technologies (CSIT)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5089153323","display_name":"Daniil Pastukhov","orcid":null},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Daniil Pastukhov","raw_affiliation_strings":["Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","institution_ids":["https://openalex.org/I44504214"]},{"raw_affiliation_string":"Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006846781","display_name":"Stanislav Kuznetsov","orcid":"https://orcid.org/0000-0002-5931-8676"},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Stanislav Kuznetsov","raw_affiliation_strings":["Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","institution_ids":["https://openalex.org/I44504214"]},{"raw_affiliation_string":"Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022460264","display_name":"Vojt\u011bch Van\u010dura","orcid":"https://orcid.org/0000-0003-2638-9969"},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Vojtech Vancura","raw_affiliation_strings":["Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","institution_ids":["https://openalex.org/I44504214"]},{"raw_affiliation_string":"Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5035026045","display_name":"Pavel Kord\u00edk","orcid":"https://orcid.org/0000-0003-1433-0089"},"institutions":[{"id":"https://openalex.org/I44504214","display_name":"Czech Technical University in Prague","ror":"https://ror.org/03kqpb082","country_code":"CZ","type":"education","lineage":["https://openalex.org/I44504214"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Pavel Kordik","raw_affiliation_strings":["Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Czech Technical University in Prague,Faculty of Information Technology,Prague,Czech Republic","institution_ids":["https://openalex.org/I44504214"]},{"raw_affiliation_string":"Faculty of Information Technology, Czech Technical University in Prague, Prague, Czech Republic","institution_ids":["https://openalex.org/I44504214"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I44504214"],"apc_list":null,"apc_paid":null,"fwci":0.7537,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.73183709,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"597","last_page":"601"},"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":0.9966999888420105,"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9696000218391418,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/serendipity","display_name":"Serendipity","score":0.9377322196960449},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7588355541229248},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.7315377593040466},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.575457751750946},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.5209447145462036},{"id":"https://openalex.org/keywords/movielens","display_name":"MovieLens","score":0.5175758600234985},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.501638650894165},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.34496480226516724}],"concepts":[{"id":"https://openalex.org/C2779119418","wikidata":"https://www.wikidata.org/wiki/Q166039","display_name":"Serendipity","level":2,"score":0.9377322196960449},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7588355541229248},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.7315377593040466},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.575457751750946},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.5209447145462036},{"id":"https://openalex.org/C2776156558","wikidata":"https://www.wikidata.org/wiki/Q4353746","display_name":"MovieLens","level":4,"score":0.5175758600234985},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.501638650894165},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.34496480226516724},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"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:10.1109/csit56902.2022.10000782","is_oa":false,"landing_page_url":"https://doi.org/10.1109/csit56902.2022.10000782","pdf_url":null,"source":{"id":"https://openalex.org/S4363608244","display_name":"2022 IEEE 17th International Conference on Computer Sciences and Information Technologies (CSIT)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE 17th International Conference on Computer Sciences and Information Technologies (CSIT)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1547244403","https://openalex.org/W2046974451","https://openalex.org/W2054141820","https://openalex.org/W2161676175","https://openalex.org/W2219888463","https://openalex.org/W2811138351","https://openalex.org/W2912745432","https://openalex.org/W3101708421","https://openalex.org/W3154445493","https://openalex.org/W4210847908","https://openalex.org/W4226280022","https://openalex.org/W6648684865"],"related_works":["https://openalex.org/W2355698112","https://openalex.org/W2022984797","https://openalex.org/W4394818607","https://openalex.org/W2986679525","https://openalex.org/W2797500822","https://openalex.org/W4312541699","https://openalex.org/W4299358966","https://openalex.org/W2794458286","https://openalex.org/W4205822456","https://openalex.org/W2537367858"],"abstract_inverted_index":{"Offline":[0],"optimization":[1,10,56,93],"of":[2,45,143,147],"recommender":[3],"systems":[4],"is":[5,30,51,59,72,111],"a":[6,63,80],"difficult":[7],"task.":[8],"Popular":[9],"criteria":[11,94],"such":[12],"as":[13,79],"RMSE,":[14],"Recall,":[15],"and":[16,70,125,133,139],"NDCG":[17],"do":[18],"not":[19],"correlate":[20],"much":[21],"with":[22],"online":[23],"performance,":[24],"especially":[25],"when":[26],"the":[27,34,39,108,135,141,144],"recommendation":[28,98],"algorithm":[29],"largely":[31],"different":[32,97],"from":[33],"one":[35],"used":[36,78],"to":[37,47,52,61,83,91,106],"generate":[38],"offline":[40],"data.":[41],"An":[42],"exciting":[43],"direction":[44],"research":[46],"mitigate":[48],"this":[49],"problem":[50],"use":[53],"more":[54,67],"robust":[55],"criteria.":[57],"Serendipity":[58],"reported":[60],"be":[62,77],"promising":[64],"proxy.":[65],"However,":[66],"variants":[68],"exist,":[69],"it":[71],"unclear":[73],"whether":[74],"they":[75],"can":[76],"single":[81],"criterion":[82],"optimize.":[84],"This":[85],"paper":[86],"analyzes":[87],"how":[88],"serendipity":[89,110],"relates":[90],"other":[92],"for":[95],"three":[96,117],"algorithms.":[99],"Based":[100],"on":[101],"our":[102],"findings,":[103],"we":[104],"propose":[105],"modify":[107],"way":[109],"computed.":[112],"We":[113,130],"conduct":[114],"experiments":[115],"using":[116],"collaborative":[118],"filtering":[119],"algorithms:":[120],"K-Nearest":[121],"Neighbors,":[122],"Matrix":[123],"Factorization,":[124],"Embarrassingly":[126],"Shallow":[127],"Autoencoder":[128],"$(EASE^{R})$.":[129],"also":[131],"employ":[132],"evaluate":[134],"ensemble":[136],"learning":[137],"approach":[138],"analyze":[140],"importance":[142],"individual":[145],"components":[146],"serendipity.":[148]},"counts_by_year":[{"year":2025,"cited_by_count":3}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}