{"id":"https://openalex.org/W3104169205","doi":"https://doi.org/10.2298/csis200608039h","title":"TrustRec: An effective approach to exploit implicit trust and distrust relationships along with explicitones for accurate recommendations","display_name":"TrustRec: An effective approach to exploit implicit trust and distrust relationships along with explicitones for accurate recommendations","publication_year":2020,"publication_date":"2020-11-17","ids":{"openalex":"https://openalex.org/W3104169205","doi":"https://doi.org/10.2298/csis200608039h","mag":"3104169205"},"language":"en","primary_location":{"id":"doi:10.2298/csis200608039h","is_oa":true,"landing_page_url":"https://doi.org/10.2298/csis200608039h","pdf_url":"http://www.doiserbia.nb.rs/ft.aspx?id=1820-02142000039H","source":{"id":"https://openalex.org/S206939107","display_name":"Computer Science and Information Systems","issn_l":"1820-0214","issn":["1820-0214","2406-1018"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310321031","host_organization_name":"ComSIS Consortium","host_organization_lineage":["https://openalex.org/P4310321031"],"host_organization_lineage_names":["ComSIS Consortium"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Science and Information Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"http://www.doiserbia.nb.rs/ft.aspx?id=1820-02142000039H","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Reyhani Hamedani","orcid":null},"institutions":[{"id":"https://openalex.org/I4575257","display_name":"Hanyang University","ror":"https://ror.org/046865y68","country_code":"KR","type":"education","lineage":["https://openalex.org/I4575257"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Reyhani Hamedani","raw_affiliation_strings":["Department of Computer and Software, Hanyang University, Seoul, Korea","Department of Computer and Software, Hanyang University, Seoul, Korea, 04763"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea","institution_ids":["https://openalex.org/I4575257"]},{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea, 04763","institution_ids":["https://openalex.org/I4575257"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101629306","display_name":"Irfan Ali","orcid":"https://orcid.org/0000-0002-3765-3107"},"institutions":[{"id":"https://openalex.org/I4575257","display_name":"Hanyang University","ror":"https://ror.org/046865y68","country_code":"KR","type":"education","lineage":["https://openalex.org/I4575257"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Irfan Ali","raw_affiliation_strings":["Department of Computer and Software, Hanyang University, Seoul, Korea","Department of Computer and Software, Hanyang University, Seoul, Korea, 04763"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea","institution_ids":["https://openalex.org/I4575257"]},{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea, 04763","institution_ids":["https://openalex.org/I4575257"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038728451","display_name":"Jiwon Hong","orcid":"https://orcid.org/0000-0001-8664-3258"},"institutions":[{"id":"https://openalex.org/I4575257","display_name":"Hanyang University","ror":"https://ror.org/046865y68","country_code":"KR","type":"education","lineage":["https://openalex.org/I4575257"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jiwon Hong","raw_affiliation_strings":["Department of Computer and Software, Hanyang University, Seoul, Korea","Department of Computer and Software, Hanyang University, Seoul, Korea, 04763"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea","institution_ids":["https://openalex.org/I4575257"]},{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea, 04763","institution_ids":["https://openalex.org/I4575257"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100656150","display_name":"Sang\u2010Wook Kim","orcid":"https://orcid.org/0000-0002-6345-9084"},"institutions":[{"id":"https://openalex.org/I4575257","display_name":"Hanyang University","ror":"https://ror.org/046865y68","country_code":"KR","type":"education","lineage":["https://openalex.org/I4575257"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Sang-Wook Kim","raw_affiliation_strings":["Department of Computer and Software, Hanyang University, Seoul, Korea","Department of Computer and Software, Hanyang University, Seoul, Korea, 04763"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea","institution_ids":["https://openalex.org/I4575257"]},{"raw_affiliation_string":"Department of Computer and Software, Hanyang University, Seoul, Korea, 04763","institution_ids":["https://openalex.org/I4575257"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4575257"],"apc_list":null,"apc_paid":null,"fwci":1.6327,"has_fulltext":true,"cited_by_count":20,"citation_normalized_percentile":{"value":0.8842575,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"18","issue":"1","first_page":"93","last_page":"114"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9916999936103821,"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":0.9916999936103821,"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/T11273","display_name":"Advanced Graph Neural Networks","score":0.9818000197410583,"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"}},{"id":"https://openalex.org/T11612","display_name":"Stochastic Gradient Optimization Techniques","score":0.9574999809265137,"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/distrust","display_name":"Distrust","score":0.984140932559967},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8655014634132385},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.8397226929664612},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.6975151300430298},{"id":"https://openalex.org/keywords/transitive-relation","display_name":"Transitive relation","score":0.6274787187576294},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.5869594216346741},{"id":"https://openalex.org/keywords/preference","display_name":"Preference","score":0.5121796131134033},{"id":"https://openalex.org/keywords/trust-region","display_name":"Trust region","score":0.491750031709671},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.4587258994579315},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3806622624397278},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3216857612133026},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.30074599385261536},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.20612987875938416},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09746265411376953}],"concepts":[{"id":"https://openalex.org/C2778321746","wikidata":"https://www.wikidata.org/wiki/Q621922","display_name":"Distrust","level":2,"score":0.984140932559967},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8655014634132385},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.8397226929664612},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.6975151300430298},{"id":"https://openalex.org/C191399111","wikidata":"https://www.wikidata.org/wiki/Q64861","display_name":"Transitive relation","level":2,"score":0.6274787187576294},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.5869594216346741},{"id":"https://openalex.org/C2781249084","wikidata":"https://www.wikidata.org/wiki/Q908656","display_name":"Preference","level":2,"score":0.5121796131134033},{"id":"https://openalex.org/C89109886","wikidata":"https://www.wikidata.org/wiki/Q1535924","display_name":"Trust region","level":3,"score":0.491750031709671},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.4587258994579315},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3806622624397278},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3216857612133026},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.30074599385261536},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.20612987875938416},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09746265411376953},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"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/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","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/C178635117","wikidata":"https://www.wikidata.org/wiki/Q747499","display_name":"RADIUS","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2298/csis200608039h","is_oa":true,"landing_page_url":"https://doi.org/10.2298/csis200608039h","pdf_url":"http://www.doiserbia.nb.rs/ft.aspx?id=1820-02142000039H","source":{"id":"https://openalex.org/S206939107","display_name":"Computer Science and Information Systems","issn_l":"1820-0214","issn":["1820-0214","2406-1018"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310321031","host_organization_name":"ComSIS Consortium","host_organization_lineage":["https://openalex.org/P4310321031"],"host_organization_lineage_names":["ComSIS Consortium"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Science and Information Systems","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.2298/csis200608039h","is_oa":true,"landing_page_url":"https://doi.org/10.2298/csis200608039h","pdf_url":"http://www.doiserbia.nb.rs/ft.aspx?id=1820-02142000039H","source":{"id":"https://openalex.org/S206939107","display_name":"Computer Science and Information Systems","issn_l":"1820-0214","issn":["1820-0214","2406-1018"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310321031","host_organization_name":"ComSIS Consortium","host_organization_lineage":["https://openalex.org/P4310321031"],"host_organization_lineage_names":["ComSIS Consortium"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Science and Information Systems","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.550000011920929,"id":"https://metadata.un.org/sdg/16"}],"awards":[{"id":"https://openalex.org/G107372574","display_name":null,"funder_award_id":"2020-0-01373","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G2367441553","display_name":null,"funder_award_id":"NRF-2020R1A2B5B03001960","funder_id":"https://openalex.org/F4320328359","funder_display_name":"Ministry of Science and ICT, South Korea"},{"id":"https://openalex.org/G4526159756","display_name":null,"funder_award_id":"NRF-2020R1A2B5B03001960","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G5051733337","display_name":null,"funder_award_id":"2020-0-01373","funder_id":"https://openalex.org/F4320321142","funder_display_name":"Hanyang University"},{"id":"https://openalex.org/G5323172026","display_name":null,"funder_award_id":"2020-0-01373","funder_id":"https://openalex.org/F4320328359","funder_display_name":"Ministry of Science and ICT, South Korea"},{"id":"https://openalex.org/G5536064181","display_name":null,"funder_award_id":"No. NRF-2020R1A2B5B03001960","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G6346334673","display_name":null,"funder_award_id":"2020R1A2B5B03001960","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G7335664070","display_name":null,"funder_award_id":"2020-0-01373","funder_id":"https://openalex.org/F4320335489","funder_display_name":"Institute for Information and Communications Technology Promotion"}],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320321142","display_name":"Hanyang University","ror":"https://ror.org/046865y68"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"},{"id":"https://openalex.org/F4320328359","display_name":"Ministry of Science and ICT, South Korea","ror":"https://ror.org/01wpjm123"},{"id":"https://openalex.org/F4320335489","display_name":"Institute for Information and Communications Technology Promotion","ror":"https://ror.org/01g0hqq23"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3104169205.pdf","grobid_xml":"https://content.openalex.org/works/W3104169205.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W1980127182","https://openalex.org/W1980853671","https://openalex.org/W2032611833","https://openalex.org/W2035463970","https://openalex.org/W2054141820","https://openalex.org/W2086722054","https://openalex.org/W2090641502","https://openalex.org/W2093219534","https://openalex.org/W2132914434","https://openalex.org/W2135598826","https://openalex.org/W2144780381","https://openalex.org/W2171960770","https://openalex.org/W2340079414","https://openalex.org/W2343271409","https://openalex.org/W2423263085","https://openalex.org/W2488363545","https://openalex.org/W2509678028","https://openalex.org/W2519931003","https://openalex.org/W2603931454","https://openalex.org/W2620750846","https://openalex.org/W2741124718","https://openalex.org/W2752505552","https://openalex.org/W4232980324","https://openalex.org/W4292148899"],"related_works":["https://openalex.org/W199727279","https://openalex.org/W2152370238","https://openalex.org/W3160132286","https://openalex.org/W3193570178","https://openalex.org/W2155055595","https://openalex.org/W2341700843","https://openalex.org/W2741523430","https://openalex.org/W2963185427","https://openalex.org/W2065296176","https://openalex.org/W2342498029"],"abstract_inverted_index":{"Trust-aware":[0],"recommendation":[1,29],"approaches":[2,30,135],"are":[3],"widely":[4],"used":[5],"to":[6,85,116],"mitigate":[7],"the":[8,24,63,77,88,119],"cold-start":[9],"problem":[10],"in":[11,59,96,136],"recommender":[12],"systems":[13],"by":[14],"utilizing":[15],"trust":[16,37],"networks.":[17],"In":[18],"this":[19],"paper,":[20],"we":[21,69],"point":[22],"out":[23],"problems":[25,90],"of":[26,65,87,94,113,126,138],"existing":[27,134],"trust-aware":[28],"as":[31],"follows:":[32],"(P1)":[33],"exploiting":[34],"sparse":[35],"explicit":[36],"and":[38,91,110,122,141],"distrust":[39,66],"relationships;":[40],"(P2)":[41],"considering":[42],"a":[43,47,51,56,72,97],"misleading":[44],"assumption":[45],"that":[46,80,131],"user":[48,115],"pair":[49],"having":[50],"trust/distrust":[52],"relationship":[53],"certainly":[54],"has":[55],"similar/dissimilar":[57],"preference":[58],"practice;":[60],"(P3)":[61],"employing":[62],"transitivity":[64],"relationships.":[67],"Then,":[68],"propose":[70],"TrustRec,":[71],"novel":[73],"approach":[74],"based":[75],"on":[76],"matrix":[78,99],"factorization":[79,100],"provides":[81],"an":[82],"effective":[83],"solution":[84],"each":[86,114],"aforementioned":[89],"incorporates":[92],"all":[93],"them":[95],"single":[98],"model.":[101],"Furthermore,":[102],"TrustRec":[103],"exploits":[104],"only":[105],"top-k":[106],"most":[107],"similar":[108],"trustees":[109],"dissimilar":[111],"distrustees":[112],"improve":[117],"both":[118,139],"computational":[120],"cost":[121],"accuracy.":[123],"The":[124],"results":[125],"our":[127],"extensive":[128],"experiments":[129],"demonstrate":[130],"TructRec":[132],"outperforms":[133],"terms":[137],"effectiveness":[140],"efficiency.":[142]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}