{"id":"https://openalex.org/W4403123483","doi":"https://doi.org/10.1109/tits.2024.3461735","title":"Self-Attention Graph Convolution Imputation Network for Spatio-Temporal Traffic Data","display_name":"Self-Attention Graph Convolution Imputation Network for Spatio-Temporal Traffic Data","publication_year":2024,"publication_date":"2024-10-04","ids":{"openalex":"https://openalex.org/W4403123483","doi":"https://doi.org/10.1109/tits.2024.3461735"},"language":"en","primary_location":{"id":"doi:10.1109/tits.2024.3461735","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tits.2024.3461735","pdf_url":null,"source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Intelligent Transportation 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/A5061571885","display_name":"Xiulan Wei","orcid":"https://orcid.org/0000-0001-9237-3944"},"institutions":[{"id":"https://openalex.org/I37796252","display_name":"Beijing University of Technology","ror":"https://ror.org/037b1pp87","country_code":"CN","type":"education","lineage":["https://openalex.org/I37796252"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiulan Wei","raw_affiliation_strings":["Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China","Beijing Institute of Artificial Intelligence, Faculty of Architecture, Civil and Transportation Engineering, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]},{"raw_affiliation_string":"Beijing Institute of Artificial Intelligence, Faculty of Architecture, Civil and Transportation Engineering, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100306473","display_name":"Yong Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I37796252","display_name":"Beijing University of Technology","ror":"https://ror.org/037b1pp87","country_code":"CN","type":"education","lineage":["https://openalex.org/I37796252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yong Zhang","raw_affiliation_strings":["Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]},{"raw_affiliation_string":"Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083450478","display_name":"Shaofan Wang","orcid":"https://orcid.org/0000-0002-3045-624X"},"institutions":[{"id":"https://openalex.org/I37796252","display_name":"Beijing University of Technology","ror":"https://ror.org/037b1pp87","country_code":"CN","type":"education","lineage":["https://openalex.org/I37796252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shaofan Wang","raw_affiliation_strings":["Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]},{"raw_affiliation_string":"Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053048373","display_name":"Xia Zhao","orcid":"https://orcid.org/0000-0003-4750-4356"},"institutions":[{"id":"https://openalex.org/I62853816","display_name":"Beijing University of Civil Engineering and Architecture","ror":"https://ror.org/02yj0p855","country_code":"CN","type":"education","lineage":["https://openalex.org/I62853816"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xia Zhao","raw_affiliation_strings":["Beijing Key Laboratory of General Aviation Technology, Beijing University of Civil Engineering and Architecture, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of General Aviation Technology, Beijing University of Civil Engineering and Architecture, Beijing, China","institution_ids":["https://openalex.org/I62853816"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027329007","display_name":"Yongli Hu","orcid":"https://orcid.org/0000-0003-0440-438X"},"institutions":[{"id":"https://openalex.org/I37796252","display_name":"Beijing University of Technology","ror":"https://ror.org/037b1pp87","country_code":"CN","type":"education","lineage":["https://openalex.org/I37796252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongli Hu","raw_affiliation_strings":["Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]},{"raw_affiliation_string":"Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5020527092","display_name":"Baocai Yin","orcid":"https://orcid.org/0000-0003-3121-1823"},"institutions":[{"id":"https://openalex.org/I37796252","display_name":"Beijing University of Technology","ror":"https://ror.org/037b1pp87","country_code":"CN","type":"education","lineage":["https://openalex.org/I37796252"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Baocai Yin","raw_affiliation_strings":["Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]},{"raw_affiliation_string":"Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5061571885"],"corresponding_institution_ids":["https://openalex.org/I37796252"],"apc_list":null,"apc_paid":null,"fwci":4.5177,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.95288326,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"25","issue":"12","first_page":"19549","last_page":"19562"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10637","display_name":"Advanced Clustering Algorithms Research","score":0.98089998960495,"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"}},"topics":[{"id":"https://openalex.org/T10637","display_name":"Advanced Clustering Algorithms Research","score":0.98089998960495,"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/T10064","display_name":"Complex Network Analysis Techniques","score":0.9779999852180481,"subfield":{"id":"https://openalex.org/subfields/3109","display_name":"Statistical and Nonlinear Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11273","display_name":"Advanced Graph Neural Networks","score":0.9690999984741211,"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/computer-science","display_name":"Computer science","score":0.6444677114486694},{"id":"https://openalex.org/keywords/imputation","display_name":"Imputation (statistics)","score":0.5862230658531189},{"id":"https://openalex.org/keywords/convolution","display_name":"Convolution (computer science)","score":0.45115649700164795},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.44840362668037415},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3711014688014984},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.35217568278312683},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.27479928731918335},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.2030886709690094},{"id":"https://openalex.org/keywords/missing-data","display_name":"Missing data","score":0.18524447083473206},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.085171639919281}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6444677114486694},{"id":"https://openalex.org/C58041806","wikidata":"https://www.wikidata.org/wiki/Q1660484","display_name":"Imputation (statistics)","level":3,"score":0.5862230658531189},{"id":"https://openalex.org/C45347329","wikidata":"https://www.wikidata.org/wiki/Q5166604","display_name":"Convolution (computer science)","level":3,"score":0.45115649700164795},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.44840362668037415},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3711014688014984},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.35217568278312683},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.27479928731918335},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.2030886709690094},{"id":"https://openalex.org/C9357733","wikidata":"https://www.wikidata.org/wiki/Q6878417","display_name":"Missing data","level":2,"score":0.18524447083473206},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.085171639919281}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tits.2024.3461735","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tits.2024.3461735","pdf_url":null,"source":{"id":"https://openalex.org/S144771191","display_name":"IEEE Transactions on Intelligent Transportation Systems","issn_l":"1524-9050","issn":["1524-9050","1558-0016"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Intelligent Transportation Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1180609392","display_name":null,"funder_award_id":"5240120720","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2392307573","display_name":null,"funder_award_id":"62072015","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6077705658","display_name":null,"funder_award_id":"2021ZD0111902","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G6212863906","display_name":null,"funder_award_id":"U21B2038","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7500108037","display_name":null,"funder_award_id":"62472014","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7583432342","display_name":null,"funder_award_id":"61902053","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7744321187","display_name":null,"funder_award_id":"U19B2039","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W2026034143","https://openalex.org/W2091449379","https://openalex.org/W2096863518","https://openalex.org/W2108119513","https://openalex.org/W2496114304","https://openalex.org/W2565330852","https://openalex.org/W2902048196","https://openalex.org/W2903149116","https://openalex.org/W2930208852","https://openalex.org/W2943501111","https://openalex.org/W2955843591","https://openalex.org/W2963360736","https://openalex.org/W2963706542","https://openalex.org/W2964010366","https://openalex.org/W2964425131","https://openalex.org/W2965341826","https://openalex.org/W2980537499","https://openalex.org/W2982317909","https://openalex.org/W2998048283","https://openalex.org/W3034951560","https://openalex.org/W3174686248","https://openalex.org/W3174697924","https://openalex.org/W4214657742","https://openalex.org/W4312055772","https://openalex.org/W4385245566","https://openalex.org/W6685352114","https://openalex.org/W6686968995","https://openalex.org/W6718367848","https://openalex.org/W6719270105","https://openalex.org/W6720006811","https://openalex.org/W6729542563","https://openalex.org/W6741794790","https://openalex.org/W6746015598","https://openalex.org/W6747826347","https://openalex.org/W6751145664","https://openalex.org/W6752046673","https://openalex.org/W6754349710","https://openalex.org/W6766978945","https://openalex.org/W6772381481","https://openalex.org/W6784776072","https://openalex.org/W6809710332","https://openalex.org/W6840585966"],"related_works":["https://openalex.org/W4211215373","https://openalex.org/W3217094455","https://openalex.org/W2989589450","https://openalex.org/W3119637569","https://openalex.org/W2405773734","https://openalex.org/W2791189374","https://openalex.org/W3123325766","https://openalex.org/W2058928557","https://openalex.org/W2898623405","https://openalex.org/W2374234271"],"abstract_inverted_index":{"Missing":[0],"data":[1,16,28,34,93,117,131,174],"in":[2,79,222],"time":[3],"series":[4],"is":[5,95,120,201],"a":[6,159],"pervasive":[7],"problem":[8],"that":[9,64,216],"serves":[10],"as":[11],"obstacles":[12],"for":[13,108,172,190,203,210],"subsequent":[14],"traffic":[15,26,33,92,110,130,173,211],"analysis.":[17],"Consequently,":[18],"extensive":[19],"research":[20],"works":[21],"have":[22,84],"been":[23],"conducted":[24],"on":[25,40,91,178,225],"missing":[27,134,191,207],"imputation":[29,35,73,94,164,175,188,198,209,223],"tasks.":[30,176],"The":[31,58,150,166],"state-of-the-art":[32,220],"models":[36,50,63],"are":[37,52,61],"mostly":[38],"based":[39],"recurrent":[41],"neural":[42],"networks.":[43],"However,":[44],"these":[45],"methods":[46,60,78,221],"belong":[47],"to":[48,55,122,132,205],"autoregressive":[49],"which":[51],"highly":[53],"susceptible":[54],"error":[56],"propagation.":[57],"attention-based":[59,77],"non-autoregressive":[62],"can":[65],"avoid":[66],"compounding":[67],"errors":[68],"and":[69,83,162,199],"help":[70],"achieve":[71],"better":[72],"quality.":[74],"Moreover,":[75],"the":[76,114,125,139,179,182],"now":[80],"widely":[81],"applied":[82],"achieved":[85],"remarkable":[86],"results,":[87],"whereas":[88],"their":[89],"application":[90],"still":[96],"limited.":[97],"Thus,":[98],"this":[99,137],"paper":[100],"proposes":[101],"Self-Attention":[102],"Graph":[103],"Convolution":[104],"Imputation":[105],"Network":[106],"(SAGCIN)":[107],"spatio-temporal":[109,126,156,160,169],"data.":[111,192,212],"To":[112,136],"ensure":[113],"accuracy":[115],"of":[116,129,154,187,197],"imputation,":[118],"it":[119],"necessary":[121],"fully":[123],"capture":[124],"contextual":[127],"information":[128],"impute":[133],"values.":[135],"end,":[138],"SAGCIN":[140,151,204,217],"model":[141,152,218],"incorporates":[142],"self-attention":[143],"mechanism":[144],"with":[145,158],"diffusion":[146],"graph":[147],"convolution":[148],"network.":[149],"consists":[153],"two":[155,185],"blocks":[157],"encoder":[161,167],"an":[163],"decoder.":[165],"learns":[168],"representations":[170],"specialized":[171],"Based":[177],"learned":[180],"representation,":[181],"decoder":[183],"performs":[184],"stages":[186],"operator":[189],"A":[193],"joint-optimization":[194],"training":[195],"approach":[196],"reconstruction":[200],"introduced":[202],"perform":[206],"value":[208],"Empirical":[213],"results":[214],"demonstrate":[215],"outperforms":[219],"tasks":[224],"relevant":[226],"real-world":[227],"benchmarks.":[228]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":10}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
