{"id":"https://openalex.org/W4381054202","doi":"https://doi.org/10.1145/3604804","title":"Meta-CRS: A Dynamic Meta-Learning Approach for Effective Conversational Recommender System","display_name":"Meta-CRS: A Dynamic Meta-Learning Approach for Effective Conversational Recommender System","publication_year":2023,"publication_date":"2023-06-17","ids":{"openalex":"https://openalex.org/W4381054202","doi":"https://doi.org/10.1145/3604804"},"language":"en","primary_location":{"id":"doi:10.1145/3604804","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3604804","pdf_url":null,"source":{"id":"https://openalex.org/S4394735545","display_name":"ACM Transactions on Information Systems","issn_l":"1046-8188","issn":["1046-8188","1558-2868"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Information Systems","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/A5105123677","display_name":"Yuxin Ni","orcid":"https://orcid.org/0009-0008-5780-4751"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yuxin Ni","raw_affiliation_strings":["Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0009-0008-5780-4751","affiliations":[{"raw_affiliation_string":"Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083973309","display_name":"Yunwen Xia","orcid":"https://orcid.org/0009-0000-9493-7213"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yunwen Xia","raw_affiliation_strings":["School of Computer Science and Engineering, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0009-0000-9493-7213","affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101716409","display_name":"Hui Fang","orcid":"https://orcid.org/0000-0001-9788-6634"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hui Fang","raw_affiliation_strings":["RIIS, China"],"raw_orcid":"https://orcid.org/0000-0001-9788-6634","affiliations":[{"raw_affiliation_string":"RIIS, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102918640","display_name":"Chong Long","orcid":"https://orcid.org/0009-0003-6939-5055"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chong Long","raw_affiliation_strings":["Ant Group, China"],"raw_orcid":"https://orcid.org/0009-0003-6939-5055","affiliations":[{"raw_affiliation_string":"Ant Group, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103102905","display_name":"Xinyu Kong","orcid":"https://orcid.org/0000-0002-9593-7861"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xinyu Kong","raw_affiliation_strings":["Ant Group, China"],"raw_orcid":"https://orcid.org/0000-0002-9593-7861","affiliations":[{"raw_affiliation_string":"Ant Group, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042859180","display_name":"Daqian Li","orcid":"https://orcid.org/0009-0007-3957-2427"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Daqian Li","raw_affiliation_strings":["Ant Group, China"],"raw_orcid":"https://orcid.org/0009-0007-3957-2427","affiliations":[{"raw_affiliation_string":"Ant Group, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019370574","display_name":"Dong Yang","orcid":"https://orcid.org/0009-0003-0840-7526"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Dong Yang","raw_affiliation_strings":["Ant Group, China"],"raw_orcid":"https://orcid.org/0009-0003-0840-7526","affiliations":[{"raw_affiliation_string":"Ant Group, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100436659","display_name":"Jie Zhang","orcid":"https://orcid.org/0000-0001-8996-7581"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Jie Zhang","raw_affiliation_strings":["School of Computer Science and Engineering, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0001-8996-7581","affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.8822,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.94103454,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"42","issue":"1","first_page":"1","last_page":"27"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10203","display_name":"Recommender Systems and Techniques","score":0.9993000030517578,"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":0.9993000030517578,"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/T10028","display_name":"Topic Modeling","score":0.9979000091552734,"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/T12101","display_name":"Advanced Bandit Algorithms Research","score":0.9914000034332275,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.901319146156311},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.8113336563110352},{"id":"https://openalex.org/keywords/reinforcement-learning","display_name":"Reinforcement learning","score":0.7941116094589233},{"id":"https://openalex.org/keywords/conversation","display_name":"Conversation","score":0.7862212657928467},{"id":"https://openalex.org/keywords/ask-price","display_name":"Ask price","score":0.7785539627075195},{"id":"https://openalex.org/keywords/transformer","display_name":"Transformer","score":0.4616820216178894},{"id":"https://openalex.org/keywords/session","display_name":"Session (web analytics)","score":0.4507009983062744},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.40951526165008545},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.39461028575897217},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.328572154045105},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.32611969113349915},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.30176520347595215}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.901319146156311},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.8113336563110352},{"id":"https://openalex.org/C97541855","wikidata":"https://www.wikidata.org/wiki/Q830687","display_name":"Reinforcement learning","level":2,"score":0.7941116094589233},{"id":"https://openalex.org/C2777200299","wikidata":"https://www.wikidata.org/wiki/Q52943","display_name":"Conversation","level":2,"score":0.7862212657928467},{"id":"https://openalex.org/C90329073","wikidata":"https://www.wikidata.org/wiki/Q914232","display_name":"Ask price","level":2,"score":0.7785539627075195},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.4616820216178894},{"id":"https://openalex.org/C2779182362","wikidata":"https://www.wikidata.org/wiki/Q17126187","display_name":"Session (web analytics)","level":2,"score":0.4507009983062744},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.40951526165008545},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.39461028575897217},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.328572154045105},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.32611969113349915},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.30176520347595215},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","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/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3604804","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3604804","pdf_url":null,"source":{"id":"https://openalex.org/S4394735545","display_name":"ACM Transactions on Information Systems","issn_l":"1046-8188","issn":["1046-8188","1558-2868"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Information Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2534699186","display_name":null,"funder_award_id":"23QA1403100","funder_id":"https://openalex.org/F4320327803","funder_display_name":"Shanghai Rising-Star Program"},{"id":"https://openalex.org/G2626357709","display_name":null,"funder_award_id":"72192832","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7914167519","display_name":null,"funder_award_id":"21ZR1421900","funder_id":"https://openalex.org/F4320309612","funder_display_name":"Natural Science Foundation of Shanghai"}],"funders":[{"id":"https://openalex.org/F4320309612","display_name":"Natural Science Foundation of Shanghai","ror":null},{"id":"https://openalex.org/F4320318398","display_name":"Ant Group","ror":null},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320324781","display_name":"Shanghai University of Finance and Economics","ror":"https://ror.org/00wtvfq62"},{"id":"https://openalex.org/F4320327803","display_name":"Shanghai Rising-Star Program","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W41554520","https://openalex.org/W1486056878","https://openalex.org/W1542791059","https://openalex.org/W2004557467","https://openalex.org/W2349436533","https://openalex.org/W2432717477","https://openalex.org/W2602856279","https://openalex.org/W2746553466","https://openalex.org/W2809617427","https://openalex.org/W2889583850","https://openalex.org/W2949395487","https://openalex.org/W2949769095","https://openalex.org/W2963068985","https://openalex.org/W2964105864","https://openalex.org/W2964112275","https://openalex.org/W2964983698","https://openalex.org/W2970236742","https://openalex.org/W2972156721","https://openalex.org/W2980601847","https://openalex.org/W2997662139","https://openalex.org/W3014901735","https://openalex.org/W3021703952","https://openalex.org/W3031596603","https://openalex.org/W3032793209","https://openalex.org/W3035098003","https://openalex.org/W3035355914","https://openalex.org/W3038439974","https://openalex.org/W3040127368","https://openalex.org/W3065542300","https://openalex.org/W3080122044","https://openalex.org/W3095240165","https://openalex.org/W3099865390","https://openalex.org/W3100260481","https://openalex.org/W3100790518","https://openalex.org/W3101718968","https://openalex.org/W3105787366","https://openalex.org/W3115944734","https://openalex.org/W3152509363","https://openalex.org/W3185784178","https://openalex.org/W3195061894","https://openalex.org/W4224312735","https://openalex.org/W4284682806","https://openalex.org/W4284692242","https://openalex.org/W4287815740","https://openalex.org/W4312274603","https://openalex.org/W4392366624","https://openalex.org/W6776331362"],"related_works":["https://openalex.org/W1968552888","https://openalex.org/W1527532029","https://openalex.org/W2374116601","https://openalex.org/W3093134843","https://openalex.org/W2378167147","https://openalex.org/W3210777354","https://openalex.org/W2772323916","https://openalex.org/W2281307425","https://openalex.org/W1511346092","https://openalex.org/W2464405057"],"abstract_inverted_index":{"Conversational":[0],"recommender":[1,6],"system":[2,7],"(CRS)":[3],"enhances":[4],"the":[5,10,58,61,65,69,75,90,109,143,147,168,174,178],"by":[8],"acquiring":[9],"latest":[11],"user":[12],"preference":[13],"through":[14,101],"dialogues,":[15],"where":[16],"an":[17,157,164],"agent":[18,111],"needs":[19],"to":[20,23,29,34,56,74,88,125,141],"decide":[21,113],"\u201cwhether":[22],"ask":[24],"or":[25],"recommend\u201d,":[26],"\u201cwhich":[27,32],"attributes":[28],"ask\u201d,":[30],"and":[31,64,80,121,137,146,156,177],"items":[33],"recommend\u201d":[35],"in":[36,47,97,163],"each":[37,114],"round.":[38],"To":[39],"explore":[40],"these":[41],"questions,":[42],"reinforcement":[43],"learning":[44],"is":[45],"adopted":[46],"most":[48],"CRS":[49,110],"frameworks.":[50],"However,":[51],"existing":[52],"studies":[53],"somewhat":[54],"ignore":[55],"consider":[57],"connection":[59],"between":[60,92],"previous":[62,118],"rounds":[63,94],"current":[66],"round":[67],"of":[68,77,95,170,180],"conversation,":[70],"which":[71],"might":[72],"lead":[73],"lack":[76],"prior":[78],"knowledge":[79],"inaccurate":[81],"decisions.":[82],"In":[83],"this":[84],"view,":[85],"we":[86,132],"propose":[87,133],"facilitate":[89],"connections":[91],"different":[93],"conversations":[96],"a":[98,128,134],"dialogue":[99],"session":[100],"deep":[102],"transformer-based":[103],"multi-channel":[104],"meta-reinforcement":[105],"learning,":[106],"so":[107],"that":[108],"can":[112],"action/decision":[115],"based":[116],"on":[117,152],"states,":[119],"actions,":[120],"their":[122],"rewards.":[123],"Besides,":[124],"better":[126],"utilize":[127],"user\u2019s":[129],"historical":[130],"preferences,":[131],"more":[135],"dynamic":[136],"personalized":[138],"graph":[139],"structure":[140],"support":[142],"conversation":[144],"module":[145],"recommendation":[148],"module.":[149],"Experiment":[150],"results":[151],"five":[153],"real-world":[154],"datasets":[155],"online":[158],"evaluation":[159],"with":[160],"real":[161],"users":[162],"industrial":[165],"environment":[166],"validate":[167],"improvement":[169],"our":[171,181],"method":[172],"over":[173],"state-of-the-art":[175],"approaches":[176],"effectiveness":[179],"designs.":[182]},"counts_by_year":[{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":2}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}