{"id":"https://openalex.org/W4386290931","doi":"https://doi.org/10.1108/ajim-01-2023-0019","title":"Toward topic diversity in\u00a0recommender systems: integrating topic modeling with\u00a0a\u00a0hashing algorithm","display_name":"Toward topic diversity in\u00a0recommender systems: integrating topic modeling with\u00a0a\u00a0hashing algorithm","publication_year":2023,"publication_date":"2023-08-30","ids":{"openalex":"https://openalex.org/W4386290931","doi":"https://doi.org/10.1108/ajim-01-2023-0019"},"language":"en","primary_location":{"id":"doi:10.1108/ajim-01-2023-0019","is_oa":false,"landing_page_url":"https://doi.org/10.1108/ajim-01-2023-0019","pdf_url":null,"source":{"id":"https://openalex.org/S4210181081","display_name":"Aslib Journal of Information Management","issn_l":"2050-3806","issn":["2050-3806","2050-3814"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319811","host_organization_name":"Emerald Publishing Limited","host_organization_lineage":["https://openalex.org/P4310319811"],"host_organization_lineage_names":["Emerald Publishing Limited"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Aslib Journal of Information Management","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/A5055223920","display_name":"Donghui Yang","orcid":"https://orcid.org/0000-0002-9447-3161"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Donghui Yang","raw_affiliation_strings":["School of Economics and Management, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-9447-3161","affiliations":[{"raw_affiliation_string":"School of Economics and Management, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101973715","display_name":"Yan Wang","orcid":"https://orcid.org/0000-0002-5422-657X"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yan Wang","raw_affiliation_strings":["School of Economics and Management, Southeast University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Economics and Management, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102003589","display_name":"Zhaoyang Shi","orcid":"https://orcid.org/0000-0003-0354-3783"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhaoyang Shi","raw_affiliation_strings":["School of Economics and Management, Southeast University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Economics and Management, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100411037","display_name":"Huimin Wang","orcid":"https://orcid.org/0009-0006-3932-1604"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Huimin Wang","raw_affiliation_strings":["School of Economics and Management, Southeast University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Economics and Management, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5055223920"],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":null,"apc_paid":null,"fwci":2.6905,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.91798756,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"77","issue":"1","first_page":"47","last_page":"69"},"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/T11478","display_name":"Caching and Content Delivery","score":0.9876000285148621,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11550","display_name":"Text and Document Classification Technologies","score":0.9821000099182129,"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/recommender-system","display_name":"Recommender system","score":0.838706374168396},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.806309700012207},{"id":"https://openalex.org/keywords/latent-dirichlet-allocation","display_name":"Latent Dirichlet allocation","score":0.7140802145004272},{"id":"https://openalex.org/keywords/information-overload","display_name":"Information overload","score":0.6386873722076416},{"id":"https://openalex.org/keywords/hash-function","display_name":"Hash function","score":0.6346887946128845},{"id":"https://openalex.org/keywords/diversity","display_name":"Diversity (politics)","score":0.48125335574150085},{"id":"https://openalex.org/keywords/locality-sensitive-hashing","display_name":"Locality-sensitive hashing","score":0.44960927963256836},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.4469988942146301},{"id":"https://openalex.org/keywords/topic-model","display_name":"Topic model","score":0.4197555184364319},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.40742090344429016},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.39461642503738403},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.24276459217071533},{"id":"https://openalex.org/keywords/hash-table","display_name":"Hash table","score":0.13949081301689148}],"concepts":[{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.838706374168396},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.806309700012207},{"id":"https://openalex.org/C500882744","wikidata":"https://www.wikidata.org/wiki/Q269236","display_name":"Latent Dirichlet allocation","level":3,"score":0.7140802145004272},{"id":"https://openalex.org/C186625053","wikidata":"https://www.wikidata.org/wiki/Q1130191","display_name":"Information overload","level":2,"score":0.6386873722076416},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.6346887946128845},{"id":"https://openalex.org/C2781316041","wikidata":"https://www.wikidata.org/wiki/Q1230584","display_name":"Diversity (politics)","level":2,"score":0.48125335574150085},{"id":"https://openalex.org/C74270461","wikidata":"https://www.wikidata.org/wiki/Q1625299","display_name":"Locality-sensitive hashing","level":4,"score":0.44960927963256836},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.4469988942146301},{"id":"https://openalex.org/C171686336","wikidata":"https://www.wikidata.org/wiki/Q3532085","display_name":"Topic model","level":2,"score":0.4197555184364319},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.40742090344429016},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.39461642503738403},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.24276459217071533},{"id":"https://openalex.org/C67388219","wikidata":"https://www.wikidata.org/wiki/Q207440","display_name":"Hash table","level":3,"score":0.13949081301689148},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1108/ajim-01-2023-0019","is_oa":false,"landing_page_url":"https://doi.org/10.1108/ajim-01-2023-0019","pdf_url":null,"source":{"id":"https://openalex.org/S4210181081","display_name":"Aslib Journal of Information Management","issn_l":"2050-3806","issn":["2050-3806","2050-3814"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319811","host_organization_name":"Emerald Publishing Limited","host_organization_lineage":["https://openalex.org/P4310319811"],"host_organization_lineage_names":["Emerald Publishing Limited"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Aslib Journal of Information Management","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.5099999904632568}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":40,"referenced_works":["https://openalex.org/W1981520019","https://openalex.org/W1988752029","https://openalex.org/W2003274231","https://openalex.org/W2042281163","https://openalex.org/W2108508595","https://openalex.org/W2153578526","https://openalex.org/W2159094788","https://openalex.org/W2171960770","https://openalex.org/W2761561877","https://openalex.org/W2780198023","https://openalex.org/W2785788383","https://openalex.org/W2793148563","https://openalex.org/W2800937088","https://openalex.org/W2805312736","https://openalex.org/W2883447679","https://openalex.org/W2889527830","https://openalex.org/W2909858298","https://openalex.org/W2925080392","https://openalex.org/W2937054116","https://openalex.org/W2938824800","https://openalex.org/W2963707260","https://openalex.org/W2980858682","https://openalex.org/W2983742151","https://openalex.org/W2999851651","https://openalex.org/W3003531175","https://openalex.org/W3003963580","https://openalex.org/W3004206374","https://openalex.org/W3004565978","https://openalex.org/W3019969889","https://openalex.org/W3022407905","https://openalex.org/W3040659409","https://openalex.org/W3086229226","https://openalex.org/W3093467686","https://openalex.org/W3097507552","https://openalex.org/W3105755180","https://openalex.org/W3137407102","https://openalex.org/W3185758990","https://openalex.org/W4211236261","https://openalex.org/W4245438327","https://openalex.org/W4283204864"],"related_works":["https://openalex.org/W2769501189","https://openalex.org/W4315588616","https://openalex.org/W4312773271","https://openalex.org/W2888805565","https://openalex.org/W2962686197","https://openalex.org/W2207653751","https://openalex.org/W3005513013","https://openalex.org/W2611137333","https://openalex.org/W4291700620","https://openalex.org/W4317422773"],"abstract_inverted_index":{"Purpose":[0],"Improving":[1],"the":[2,11,44,68,71,83,97,121,131,155,167,176],"diversity":[3,26,98,122],"of":[4,10,27,70,78,85,99,123,133,140,157,178],"recommendation":[5,64,147,168],"information":[6,17,112,179,182],"has":[7,33,102],"become":[8],"one":[9],"latest":[12],"research":[13],"hotspots":[14],"to":[15,20,42,61,110,174],"solve":[16],"cocoons.":[18,113,183],"Aiming":[19],"achieve":[21],"both":[22],"high":[23,158],"accuracy":[24,132,159],"and":[25,56,118,160,171,181],"recommender":[28,124,134],"system,":[29],"a":[30,137],"hybrid":[31,146],"method":[32,164],"been":[34,103],"proposed":[35],"in":[36,136,150,169],"this":[37,73,151],"paper.":[38],"This":[39,48],"study":[40],"aims":[41],"discuss":[43],"aforementioned":[45],"method.":[46],"Design/methodology/approach":[47],"paper":[49,74,80,152],"integrates":[50],"latent":[51],"Dirichlet":[52],"allocation":[53],"(LDA)":[54],"model":[55,117],"locality-sensitive":[57],"hashing":[58,108,119],"(LSH)":[59],"algorithm":[60,148],"design":[62],"topic":[63,116,142],"system.":[65],"To":[66],"measure":[67],"effectiveness":[69],"method,":[72],"builds":[75],"three-level":[76],"categories":[77],"journal":[79],"abstracts":[81],"on":[82],"Web":[84],"Science":[86],"platform":[87],"as":[88],"experimental":[89],"data.":[90],"Findings":[91],"(1)":[92],"The":[93,145,163],"results":[94],"illustrate":[95],"that":[96],"recommended":[100],"items":[101],"significantly":[104],"enhanced":[105],"by":[106],"leveraging":[107],"function":[109],"overcome":[111,154],"(2)":[114],"Integrating":[115],"algorithm,":[120],"systems":[125,135],"could":[126,165],"be":[127],"achieved":[128],"without":[129],"losing":[130],"certain":[138],"degree":[139],"refined":[141],"levels.":[143],"Originality/value":[144],"developed":[149],"can":[153],"dilemma":[156],"low":[161],"diversity.":[162],"ameliorate":[166],"business":[170],"service":[172],"industries":[173],"address":[175],"problems":[177],"overload":[180]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
