{"id":"https://openalex.org/W4403826812","doi":"https://doi.org/10.1109/tkde.2024.3485880","title":"Handling Low Homophily in Recommender Systems With Partitioned Graph Transformer","display_name":"Handling Low Homophily in Recommender Systems With Partitioned Graph Transformer","publication_year":2024,"publication_date":"2024-10-28","ids":{"openalex":"https://openalex.org/W4403826812","doi":"https://doi.org/10.1109/tkde.2024.3485880"},"language":"en","primary_location":{"id":"doi:10.1109/tkde.2024.3485880","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2024.3485880","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Knowledge and Data Engineering","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/A5101918597","display_name":"Th\u00e0nh T\u00e2m Nguy\u00ean","orcid":"https://orcid.org/0000-0002-2586-7757"},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]},{"id":"https://openalex.org/I4387155935","display_name":"HUTECH University","ror":"https://ror.org/05xpj2n48","country_code":null,"type":"education","lineage":["https://openalex.org/I4387155935"]},{"id":"https://openalex.org/I47265099","display_name":"Ho Chi Minh City University of Technology","ror":"https://ror.org/04qva2324","country_code":"VN","type":"education","lineage":["https://openalex.org/I123565023","https://openalex.org/I47265099"]}],"countries":["AU","VN"],"is_corresponding":false,"raw_author_name":"Thanh Tam Nguyen","raw_affiliation_strings":["Faculty of Information Technology, HUTECH University, Ho Chi Minh City, Vietnam","Griffith University, Gold Coast, QLD, Australia"],"raw_orcid":"https://orcid.org/0000-0002-2586-7757","affiliations":[{"raw_affiliation_string":"Faculty of Information Technology, HUTECH University, Ho Chi Minh City, Vietnam","institution_ids":["https://openalex.org/I4387155935","https://openalex.org/I47265099"]},{"raw_affiliation_string":"Griffith University, Gold Coast, QLD, Australia","institution_ids":["https://openalex.org/I11701301"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043422598","display_name":"Thanh Toan Nguyen","orcid":"https://orcid.org/0000-0002-6050-0774"},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]},{"id":"https://openalex.org/I4387155935","display_name":"HUTECH University","ror":"https://ror.org/05xpj2n48","country_code":null,"type":"education","lineage":["https://openalex.org/I4387155935"]},{"id":"https://openalex.org/I47265099","display_name":"Ho Chi Minh City University of Technology","ror":"https://ror.org/04qva2324","country_code":"VN","type":"education","lineage":["https://openalex.org/I123565023","https://openalex.org/I47265099"]}],"countries":["AU","VN"],"is_corresponding":false,"raw_author_name":"Thanh Toan Nguyen","raw_affiliation_strings":["Faculty of Information Technology, HUTECH University, Ho Chi Minh City, Vietnam","Griffith University, Gold Coast, QLD, Australia"],"raw_orcid":"https://orcid.org/0000-0002-6050-0774","affiliations":[{"raw_affiliation_string":"Faculty of Information Technology, HUTECH University, Ho Chi Minh City, Vietnam","institution_ids":["https://openalex.org/I4387155935","https://openalex.org/I47265099"]},{"raw_affiliation_string":"Griffith University, Gold Coast, QLD, Australia","institution_ids":["https://openalex.org/I11701301"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070529144","display_name":"Matthias Weidlich","orcid":"https://orcid.org/0000-0003-3325-7227"},"institutions":[{"id":"https://openalex.org/I39343248","display_name":"Humboldt-Universit\u00e4t zu Berlin","ror":"https://ror.org/01hcx6992","country_code":"DE","type":"education","lineage":["https://openalex.org/I39343248"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Matthias Weidlich","raw_affiliation_strings":["Humboldt-Universit&#x00E4;t zu Berlin, Berlin, Germany"],"raw_orcid":"https://orcid.org/0000-0003-3325-7227","affiliations":[{"raw_affiliation_string":"Humboldt-Universit&#x00E4;t zu Berlin, Berlin, Germany","institution_ids":["https://openalex.org/I39343248"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048681988","display_name":"Jun Jo","orcid":"https://orcid.org/0000-0002-3099-2712"},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Jun Jo","raw_affiliation_strings":["Griffith University, Gold Coast, QLD, Australia"],"raw_orcid":"https://orcid.org/0000-0002-3099-2712","affiliations":[{"raw_affiliation_string":"Griffith University, Gold Coast, QLD, Australia","institution_ids":["https://openalex.org/I11701301"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051219382","display_name":"Quoc Viet Hung Nguyen","orcid":"https://orcid.org/0000-0002-9687-1315"},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Quoc Viet Hung Nguyen","raw_affiliation_strings":["Griffith University, Gold Coast, QLD, Australia"],"raw_orcid":"https://orcid.org/0000-0002-9687-1315","affiliations":[{"raw_affiliation_string":"Griffith University, Gold Coast, QLD, Australia","institution_ids":["https://openalex.org/I11701301"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088492734","display_name":"Hongzhi Yin","orcid":"https://orcid.org/0000-0003-1395-261X"},"institutions":[{"id":"https://openalex.org/I165143802","display_name":"The University of Queensland","ror":"https://ror.org/00rqy9422","country_code":"AU","type":"education","lineage":["https://openalex.org/I165143802"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Hongzhi Yin","raw_affiliation_strings":["University of Queensland, Saint Lucia, QLD, Australia"],"raw_orcid":"https://orcid.org/0000-0003-1395-261X","affiliations":[{"raw_affiliation_string":"University of Queensland, Saint Lucia, QLD, Australia","institution_ids":["https://openalex.org/I165143802"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091254555","display_name":"Alan Wee\u2010Chung Liew","orcid":"https://orcid.org/0000-0001-6718-7584"},"institutions":[{"id":"https://openalex.org/I11701301","display_name":"Griffith University","ror":"https://ror.org/02sc3r913","country_code":"AU","type":"education","lineage":["https://openalex.org/I11701301"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Alan Wee-Chung Liew","raw_affiliation_strings":["Griffith University, Gold Coast, QLD, Australia"],"raw_orcid":"https://orcid.org/0000-0001-6718-7584","affiliations":[{"raw_affiliation_string":"Griffith University, Gold Coast, QLD, Australia","institution_ids":["https://openalex.org/I11701301"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.337,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.87207777,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":97,"max":98},"biblio":{"volume":"37","issue":"1","first_page":"334","last_page":"350"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9927999973297119,"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":0.9927999973297119,"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9106000065803528,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/homophily","display_name":"Homophily","score":0.8900814056396484},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8214470148086548},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.7962801456451416},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.5247485637664795},{"id":"https://openalex.org/keywords/transformer","display_name":"Transformer","score":0.4171209931373596},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.3534935712814331},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.3374421000480652},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.3318672776222229}],"concepts":[{"id":"https://openalex.org/C2779812341","wikidata":"https://www.wikidata.org/wiki/Q5891525","display_name":"Homophily","level":2,"score":0.8900814056396484},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8214470148086548},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.7962801456451416},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.5247485637664795},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.4171209931373596},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.3534935712814331},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.3374421000480652},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.3318672776222229},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"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/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","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},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tkde.2024.3485880","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tkde.2024.3485880","pdf_url":null,"source":{"id":"https://openalex.org/S30698027","display_name":"IEEE Transactions on Knowledge and Data Engineering","issn_l":"1041-4347","issn":["1041-4347","1558-2191","2326-3865"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer Society","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Knowledge and Data Engineering","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":78,"referenced_works":["https://openalex.org/W893486657","https://openalex.org/W1886704267","https://openalex.org/W1977290284","https://openalex.org/W2013170277","https://openalex.org/W2040762770","https://openalex.org/W2044831856","https://openalex.org/W2046536764","https://openalex.org/W2064058256","https://openalex.org/W2070375326","https://openalex.org/W2136891251","https://openalex.org/W2413004790","https://openalex.org/W2417902114","https://openalex.org/W2517898103","https://openalex.org/W2586601519","https://openalex.org/W2624407581","https://openalex.org/W2783466287","https://openalex.org/W2890884621","https://openalex.org/W2907269736","https://openalex.org/W2911488506","https://openalex.org/W2914721378","https://openalex.org/W2962907114","https://openalex.org/W2962946486","https://openalex.org/W2964676428","https://openalex.org/W2970127247","https://openalex.org/W2979327990","https://openalex.org/W3012798016","https://openalex.org/W3022945404","https://openalex.org/W3031339255","https://openalex.org/W3035298482","https://openalex.org/W3048820656","https://openalex.org/W3049662176","https://openalex.org/W3068123808","https://openalex.org/W3088694469","https://openalex.org/W3097300053","https://openalex.org/W3099825604","https://openalex.org/W3102969158","https://openalex.org/W3153858161","https://openalex.org/W3156766660","https://openalex.org/W3156963027","https://openalex.org/W3170955759","https://openalex.org/W3177101312","https://openalex.org/W3187966659","https://openalex.org/W3204153209","https://openalex.org/W3217103056","https://openalex.org/W4206806590","https://openalex.org/W4206991245","https://openalex.org/W4210334834","https://openalex.org/W4213380769","https://openalex.org/W4221150249","https://openalex.org/W4224310669","https://openalex.org/W4283810673","https://openalex.org/W4284669007","https://openalex.org/W4285600332","https://openalex.org/W4285600445","https://openalex.org/W4291127187","https://openalex.org/W4292092796","https://openalex.org/W4297733535","https://openalex.org/W4306789986","https://openalex.org/W4307203553","https://openalex.org/W4321592872","https://openalex.org/W4379382506","https://openalex.org/W4382365503","https://openalex.org/W4384648390","https://openalex.org/W4393147129","https://openalex.org/W4394785778","https://openalex.org/W4400984349","https://openalex.org/W6738964360","https://openalex.org/W6761659004","https://openalex.org/W6767098714","https://openalex.org/W6771621015","https://openalex.org/W6780226713","https://openalex.org/W6784977419","https://openalex.org/W6802872360","https://openalex.org/W6810247653","https://openalex.org/W6846424470","https://openalex.org/W6849689651","https://openalex.org/W6852259073","https://openalex.org/W6865204373"],"related_works":["https://openalex.org/W3185373886","https://openalex.org/W3010567961","https://openalex.org/W2588006872","https://openalex.org/W4385338594","https://openalex.org/W4200127153","https://openalex.org/W3175275009","https://openalex.org/W3119171992","https://openalex.org/W2011190096","https://openalex.org/W2036947108","https://openalex.org/W1971924293"],"abstract_inverted_index":{"Modern":[0],"recommender":[1,112],"systems":[2,21],"derive":[3],"predictions":[4],"from":[5],"an":[6],"interaction":[7],"graph":[8,23,94],"that":[9,42,59,87,121],"links":[10],"users":[11,44,68,143],"and":[12,95,156,166],"items.":[13,161],"To":[14],"this":[15,82],"end,":[16],"many":[17],"of":[18,31,37,78,92,142,188],"today's":[19],"state-of-the-art":[20],"use":[22],"neural":[24],"networks":[25],"(GNNs)":[26],"to":[27,48,74,106,144,185],"learn":[28],"effective":[29],"representations":[30],"these":[32,178],"graphs":[33,62],"under":[34],"the":[35,40,52,79,89,93,97,135,149],"assumption":[36],"homophily,":[38],"i.e.,":[39,66],"idea":[41],"similar":[43],"will":[45,69],"sit":[46,72],"close":[47,73],"each":[49,75],"other":[50],"in":[51,111,177],"graph.":[53],"However,":[54],"recent":[55],"studies":[56],"have":[57],"revealed":[58],"real-world":[60],"recommendation":[61,117],"are":[63],"often":[64,71],"heterophilous,":[65],"dissimilar":[67],"also":[70,182],"other.":[76],"One":[77],"reasons":[80],"for":[81,160],"heterophilia":[83],"is":[84,122],"shilling":[85,154],"attacks":[86,155],"obscure":[88],"inherent":[90],"characteristics":[91],"make":[96],"derived":[98],"recommendations":[99],"less":[100],"accurate":[101],"as":[102,171],"a":[103,116,125,186],"consequence.":[104],"Hence,":[105],"cope":[107],"with":[108],"low":[109],"homophily":[110],"systems,":[113],"we":[114],"propose":[115],"model":[118,130],"called":[119],"PGT4Rec":[120,170],"based":[123],"on":[124,164],"Partitioned":[126],"Graph":[127],"Transformer.":[128],"The":[129],"integrates":[131],"label":[132],"information":[133],"into":[134],"learning":[136],"process,":[137],"which":[138],"allows":[139],"discriminative":[140],"neighbourhoods":[141],"be":[145],"generated.":[146],"As":[147],"such,":[148],"framework":[150],"can":[151],"both":[152],"detect":[153],"predict":[157],"user":[158],"ratings":[159],"Extensive":[162],"experiments":[163],"real":[165],"synthetic":[167],"datasets":[168],"show":[169],"not":[172],"only":[173],"providing":[174],"superior":[175],"performance":[176],"two":[179],"tasks":[180],"but":[181],"significant":[183],"robustness":[184],"range":[187],"adversarial":[189],"conditions.":[190]},"counts_by_year":[{"year":2026,"cited_by_count":2}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}
