{"id":"https://openalex.org/W4386729525","doi":"https://doi.org/10.1145/3604915.3610650","title":"Analyzing Accuracy versus Diversity in a Health Recommender System for Physical Activities: a Longitudinal User Study","display_name":"Analyzing Accuracy versus Diversity in a Health Recommender System for Physical Activities: a Longitudinal User Study","publication_year":2023,"publication_date":"2023-09-14","ids":{"openalex":"https://openalex.org/W4386729525","doi":"https://doi.org/10.1145/3604915.3610650"},"language":"en","primary_location":{"id":"doi:10.1145/3604915.3610650","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3604915.3610650","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 17th ACM Conference on Recommender Systems","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/A5080315574","display_name":"Ine Coppens","orcid":"https://orcid.org/0000-0002-3051-506X"},"institutions":[{"id":"https://openalex.org/I32597200","display_name":"Ghent University","ror":"https://ror.org/00cv9y106","country_code":"BE","type":"education","lineage":["https://openalex.org/I32597200"]}],"countries":["BE"],"is_corresponding":true,"raw_author_name":"Ine Coppens","raw_affiliation_strings":["Information Technology, WAVES - imec - Ghent University, Belgium"],"raw_orcid":"https://orcid.org/0000-0002-3051-506X","affiliations":[{"raw_affiliation_string":"Information Technology, WAVES - imec - Ghent University, Belgium","institution_ids":["https://openalex.org/I32597200"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024310053","display_name":"Luc Martens","orcid":"https://orcid.org/0000-0001-9948-9157"},"institutions":[{"id":"https://openalex.org/I32597200","display_name":"Ghent University","ror":"https://ror.org/00cv9y106","country_code":"BE","type":"education","lineage":["https://openalex.org/I32597200"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Luc Martens","raw_affiliation_strings":["Information Technology, WAVES - imec - Ghent University, Belgium"],"raw_orcid":"https://orcid.org/0000-0001-9948-9157","affiliations":[{"raw_affiliation_string":"Information Technology, WAVES - imec - Ghent University, Belgium","institution_ids":["https://openalex.org/I32597200"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5005387394","display_name":"Toon De Pessemier","orcid":"https://orcid.org/0000-0002-3920-7346"},"institutions":[{"id":"https://openalex.org/I32597200","display_name":"Ghent University","ror":"https://ror.org/00cv9y106","country_code":"BE","type":"education","lineage":["https://openalex.org/I32597200"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Toon De Pessemier","raw_affiliation_strings":["Information Technology, WAVES - imec - Ghent University, Belgium"],"raw_orcid":"https://orcid.org/0000-0002-3920-7346","affiliations":[{"raw_affiliation_string":"Information Technology, WAVES - imec - Ghent University, Belgium","institution_ids":["https://openalex.org/I32597200"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5080315574"],"corresponding_institution_ids":["https://openalex.org/I32597200"],"apc_list":null,"apc_paid":null,"fwci":2.5444,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.89703714,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":97,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1146","last_page":"1151"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11446","display_name":"Mobile Health and mHealth Applications","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T11446","display_name":"Mobile Health and mHealth Applications","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/3600","display_name":"General Health Professions"},"field":{"id":"https://openalex.org/fields/36","display_name":"Health Professions"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10803","display_name":"Innovative Human-Technology Interaction","score":0.9973999857902527,"subfield":{"id":"https://openalex.org/subfields/1709","display_name":"Human-Computer Interaction"},"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/T11542","display_name":"Behavioral Health and Interventions","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/3202","display_name":"Applied Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/personalization","display_name":"Personalization","score":0.8019493222236633},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.7131606936454773},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7080380916595459},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.6773260235786438},{"id":"https://openalex.org/keywords/diversity","display_name":"Diversity (politics)","score":0.4920363128185272},{"id":"https://openalex.org/keywords/android","display_name":"Android (operating system)","score":0.4805227220058441},{"id":"https://openalex.org/keywords/longitudinal-study","display_name":"Longitudinal study","score":0.43399107456207275},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.38293707370758057},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.38026124238967896},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.3721354603767395},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.15018698573112488}],"concepts":[{"id":"https://openalex.org/C183003079","wikidata":"https://www.wikidata.org/wiki/Q1000371","display_name":"Personalization","level":2,"score":0.8019493222236633},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.7131606936454773},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7080380916595459},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.6773260235786438},{"id":"https://openalex.org/C2781316041","wikidata":"https://www.wikidata.org/wiki/Q1230584","display_name":"Diversity (politics)","level":2,"score":0.4920363128185272},{"id":"https://openalex.org/C557433098","wikidata":"https://www.wikidata.org/wiki/Q94","display_name":"Android (operating system)","level":2,"score":0.4805227220058441},{"id":"https://openalex.org/C2777895361","wikidata":"https://www.wikidata.org/wiki/Q1758614","display_name":"Longitudinal study","level":2,"score":0.43399107456207275},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.38293707370758057},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.38026124238967896},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.3721354603767395},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.15018698573112488},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C19165224","wikidata":"https://www.wikidata.org/wiki/Q23404","display_name":"Anthropology","level":1,"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":2,"locations":[{"id":"doi:10.1145/3604915.3610650","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3604915.3610650","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 17th ACM Conference on Recommender Systems","raw_type":"proceedings-article"},{"id":"pmh:oai:archive.ugent.be:01HNAXYEG43PTP5KKGKF4PFSK1","is_oa":false,"landing_page_url":"http://hdl.handle.net/1854/LU-01HNAXYEG43PTP5KKGKF4PFSK1","pdf_url":null,"source":{"id":"https://openalex.org/S4306400478","display_name":"Ghent University Academic Bibliography (Ghent University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I32597200","host_organization_name":"Ghent University","host_organization_lineage":["https://openalex.org/I32597200"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISBN: 9798400702419","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W1506156927","https://openalex.org/W2074276081","https://openalex.org/W2100867795","https://openalex.org/W2125330369","https://openalex.org/W2149628368","https://openalex.org/W2156179539","https://openalex.org/W2189006515","https://openalex.org/W2610345163","https://openalex.org/W2748214259","https://openalex.org/W2774420163","https://openalex.org/W2779889299","https://openalex.org/W2903119928","https://openalex.org/W2912386340","https://openalex.org/W2972860582","https://openalex.org/W2973004458","https://openalex.org/W4225577560","https://openalex.org/W4226280022","https://openalex.org/W4242883546","https://openalex.org/W4296037207","https://openalex.org/W4360979553"],"related_works":["https://openalex.org/W2772628444","https://openalex.org/W1484355083","https://openalex.org/W2735929803","https://openalex.org/W4220714703","https://openalex.org/W2098758514","https://openalex.org/W3008845055","https://openalex.org/W2170391450","https://openalex.org/W4376854386","https://openalex.org/W2202724490","https://openalex.org/W2508671622"],"abstract_inverted_index":{"As":[0,26,162],"personalization":[1],"has":[2],"great":[3],"potential":[4],"to":[5,51,54,80,119,185],"improve":[6],"mobile":[7],"health":[8,19],"apps,":[9],"analyzing":[10],"the":[11,18,90,106,120,135,143,150,159,164],"effect":[12],"of":[13,167],"different":[14],"recommender":[15,38,48],"algorithms":[16],"in":[17,23,69,134,158],"domain":[20],"is":[21,62],"still":[22],"its":[24],"infancy.":[25],"such,":[27,163],"this":[28,168],"paper":[29],"investigates":[30],"whether":[31],"more":[32,40,52,97,110,173],"accurate":[33,174],"recommendations":[34,42,74,121,144,178],"from":[35,43],"a":[36,44],"content-based":[37,107,136,160],"or":[39],"diverse":[41,98,177],"user-based":[45],"collaborative":[46,93],"filtering":[47,94],"will":[49],"lead":[50],"motivation":[53,148],"move.":[55],"An":[56],"eight-week":[57],"longitudinal":[58,169],"between-subject":[59],"user":[60],"study":[61,170],"being":[63],"conducted":[64],"with":[65,92],"an":[66],"Android":[67],"app":[68],"which":[70],"participants":[71],"receive":[72],"personalized":[73],"for":[75,113,149],"physical":[76],"activities":[77,152],"and":[78,116,124,129,153,175],"tips":[79,154],"reduce":[81],"sedentary":[82],"behavior.":[83],"The":[84,100],"objective":[85],"manipulation":[86,102],"check":[87,103],"confirmed":[88],"that":[89,105,139,172],"group":[91,108],"received":[95],"significantly":[96,132,156],"recommendations.":[99],"subjective":[101],"showed":[104],"assigned":[109],"positive":[111],"feedback":[112],"perceived":[114,127],"accuracy":[115],"star":[117],"rating":[118],"they":[122],"chose":[123],"executed.":[125],"However,":[126],"diversity":[128],"inspiringness":[130],"was":[131,155],"higher":[133,157],"group,":[137],"suggesting":[138],"users":[140,184],"might":[141],"experience":[142],"differently.":[145],"Lastly,":[146],"momentary":[147],"executed":[151],"group.":[161],"preliminary":[165],"results":[166],"suggest":[171],"less":[176],"have":[179],"better":[180],"effects":[181],"on":[182],"motivating":[183],"move":[186],"more.":[187]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":4}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}