{"id":"https://openalex.org/W4412719080","doi":"https://doi.org/10.1109/tsc.2025.3592409","title":"Deep Learning to Hash for Time-Aware QoS Prediction Based on VQ-VAE","display_name":"Deep Learning to Hash for Time-Aware QoS Prediction Based on VQ-VAE","publication_year":2025,"publication_date":"2025-07-25","ids":{"openalex":"https://openalex.org/W4412719080","doi":"https://doi.org/10.1109/tsc.2025.3592409"},"language":"en","primary_location":{"id":"doi:10.1109/tsc.2025.3592409","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsc.2025.3592409","pdf_url":null,"source":{"id":"https://openalex.org/S204223317","display_name":"IEEE Transactions on Services Computing","issn_l":"1939-1374","issn":["1939-1374","2372-0204"],"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 Services Computing","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":null,"display_name":"Lingzhen Kong","orcid":"https://orcid.org/0000-0002-9189-8228"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lingzhen Kong","raw_affiliation_strings":["School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-9189-8228","affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016446416","display_name":"Xiyuan Hu","orcid":"https://orcid.org/0000-0002-7095-6986"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]},{"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":"Xiyuan Hu","raw_affiliation_strings":["College of Computer Science, Beijing University of Technology, Beijing, China","School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-7095-6986","affiliations":[{"raw_affiliation_string":"College of Computer Science, Beijing University of Technology, Beijing, China","institution_ids":["https://openalex.org/I37796252"]},{"raw_affiliation_string":"School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Lianyong Qi","orcid":"https://orcid.org/0000-0001-9875-9856"},"institutions":[{"id":"https://openalex.org/I4210162190","display_name":"China University of Petroleum, East China","ror":"https://ror.org/05gbn2817","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210162190"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lianyong Qi","raw_affiliation_strings":["College of Computer Science and Technology, China University of Petroleum (East China), Qingdao, China"],"raw_orcid":"https://orcid.org/0000-0001-9875-9856","affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, China University of Petroleum (East China), Qingdao, China","institution_ids":["https://openalex.org/I4210162190"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007818509","display_name":"Xiaolong Xu","orcid":"https://orcid.org/0000-0003-4879-9803"},"institutions":[{"id":"https://openalex.org/I200845125","display_name":"Nanjing University of Information Science and Technology","ror":"https://ror.org/02y0rxk19","country_code":"CN","type":"education","lineage":["https://openalex.org/I200845125"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaolong Xu","raw_affiliation_strings":["School of Software, Nanjing University of Information Science and Technology, Nanjing, China","School of Computer and Software, Nanjing University of Information Science and Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-4879-9803","affiliations":[{"raw_affiliation_string":"School of Software, Nanjing University of Information Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I200845125"]},{"raw_affiliation_string":"School of Computer and Software, Nanjing University of Information Science and Technology, Nanjing, China","institution_ids":["https://openalex.org/I200845125"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100430650","display_name":"Yiwen Zhang","orcid":"https://orcid.org/0000-0001-8709-1088"},"institutions":[{"id":"https://openalex.org/I143868143","display_name":"Anhui University","ror":"https://ror.org/05th6yx34","country_code":"CN","type":"education","lineage":["https://openalex.org/I143868143"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yiwen Zhang","raw_affiliation_strings":["School of Computer Science and Technology, Anhui University, Hefei, China","School of Computer Science and Technology, Anhui University, Anhui, China"],"raw_orcid":"https://orcid.org/0000-0001-8709-1088","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Anhui University, Hefei, China","institution_ids":["https://openalex.org/I143868143"]},{"raw_affiliation_string":"School of Computer Science and Technology, Anhui University, Anhui, China","institution_ids":["https://openalex.org/I143868143"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052731721","display_name":"Lina Yao","orcid":"https://orcid.org/0000-0002-4149-839X"},"institutions":[{"id":"https://openalex.org/I31746571","display_name":"UNSW Sydney","ror":"https://ror.org/03r8z3t63","country_code":"AU","type":"education","lineage":["https://openalex.org/I31746571"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Lina Yao","raw_affiliation_strings":["School of Computer Science and Engineering, University of New South Wales, Sydney, NSW, Australia","School of Computer Science and Engineering, University of New South Wales, Sydney, Australia"],"raw_orcid":"https://orcid.org/0000-0002-4149-839X","affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, University of New South Wales, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I31746571"]},{"raw_affiliation_string":"School of Computer Science and Engineering, University of New South Wales, Sydney, Australia","institution_ids":["https://openalex.org/I31746571"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076120553","display_name":"Xuyun Zhang","orcid":"https://orcid.org/0000-0001-7353-4159"},"institutions":[{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Xuyun Zhang","raw_affiliation_strings":["Department of Computing, Macquarie University, Sydney, NSW, Australia","Department of Computing, Macquarie University, Australia"],"raw_orcid":"https://orcid.org/0000-0001-7353-4159","affiliations":[{"raw_affiliation_string":"Department of Computing, Macquarie University, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I99043593"]},{"raw_affiliation_string":"Department of Computing, Macquarie University, Australia","institution_ids":["https://openalex.org/I99043593"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":6.209,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.95642336,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":98},"biblio":{"volume":"18","issue":"5","first_page":"2726","last_page":"2739"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13731","display_name":"Advanced Computing and Algorithms","score":0.8205000162124634,"subfield":{"id":"https://openalex.org/subfields/3322","display_name":"Urban Studies"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T13731","display_name":"Advanced Computing and Algorithms","score":0.8205000162124634,"subfield":{"id":"https://openalex.org/subfields/3322","display_name":"Urban Studies"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12702","display_name":"Brain Tumor Detection and Classification","score":0.7353000044822693,"subfield":{"id":"https://openalex.org/subfields/2808","display_name":"Neurology"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.6858999729156494,"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":0.8807501196861267},{"id":"https://openalex.org/keywords/hash-function","display_name":"Hash function","score":0.67437744140625},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.45625290274620056},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3886549770832062},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3774382770061493},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.14360246062278748}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8807501196861267},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.67437744140625},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.45625290274620056},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3886549770832062},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3774382770061493},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.14360246062278748}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tsc.2025.3592409","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tsc.2025.3592409","pdf_url":null,"source":{"id":"https://openalex.org/S204223317","display_name":"IEEE Transactions on Services Computing","issn_l":"1939-1374","issn":["1939-1374","2372-0204"],"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 Services Computing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.550000011920929,"display_name":"Climate action","id":"https://metadata.un.org/sdg/13"}],"awards":[{"id":"https://openalex.org/G1583864203","display_name":null,"funder_award_id":"L247034","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G5132156893","display_name":null,"funder_award_id":"KFKT2024B50","funder_id":"https://openalex.org/F4320326895","funder_display_name":"State Key Laboratory of Novel Software Technology"},{"id":"https://openalex.org/G6432152502","display_name":null,"funder_award_id":"KFKT2024A03","funder_id":"https://openalex.org/F4320326895","funder_display_name":"State Key Laboratory of Novel Software Technology"},{"id":"https://openalex.org/G8217461692","display_name":null,"funder_award_id":"62172227","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/F4320322919","display_name":"Natural Science Foundation of Beijing Municipality","ror":null},{"id":"https://openalex.org/F4320326895","display_name":"State Key Laboratory of Novel Software Technology","ror":"https://ror.org/04xqp3a64"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":33,"referenced_works":["https://openalex.org/W2025768430","https://openalex.org/W2060017308","https://openalex.org/W2342658046","https://openalex.org/W2763314014","https://openalex.org/W2900510321","https://openalex.org/W2907492528","https://openalex.org/W2979413695","https://openalex.org/W2994928200","https://openalex.org/W3132700449","https://openalex.org/W3163443092","https://openalex.org/W3188916711","https://openalex.org/W3206746036","https://openalex.org/W3208323717","https://openalex.org/W4296964212","https://openalex.org/W4307364756","https://openalex.org/W4312750789","https://openalex.org/W4313037130","https://openalex.org/W4315783926","https://openalex.org/W4323897160","https://openalex.org/W4360764671","https://openalex.org/W4375797189","https://openalex.org/W4384518989","https://openalex.org/W4386076017","https://openalex.org/W4392222741","https://openalex.org/W4392901745","https://openalex.org/W4399881670","https://openalex.org/W4400412030","https://openalex.org/W4404132848","https://openalex.org/W4405598518","https://openalex.org/W4405907446","https://openalex.org/W4406890303","https://openalex.org/W4408010146","https://openalex.org/W4408100361"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"In":[0,79,103,237],"mobile":[1],"edge":[2],"computing":[3],"(MEC)":[4],"environments,":[5],"with":[6],"the":[7,10,16,21,35,42,104,120,134,140,151,166,170,185,198,207,217,222,228,263,272,277],"increase":[8],"in":[9,33],"number":[11],"of":[12,23,26,38,45,280],"web":[13],"services":[14],"possessing":[15],"same":[17],"or":[18],"similar":[19,125,260],"functions,":[20],"prediction":[22,47,97,235],"nonfunctional":[24],"quality":[25],"service":[27],"(QoS)":[28],"indicators":[29],"turns":[30],"increasingly":[31],"vital":[32],"satisfying":[34],"diverse":[36],"needs":[37],"different":[39],"users.":[40,265],"Despite":[41],"significant":[43],"achievements":[44],"QoS":[46,65,96,113,167,173,195,212,229,246],"approaches":[48],"such":[49],"as":[50],"collaborative":[51],"filtering":[52],"(CF),":[53],"they":[54],"often":[55],"fail":[56],"to":[57,62,76,81,91,132,160,178,256],"obtain":[58],"informative":[59],"representations":[60],"due":[61],"complex":[63],"user-service-time":[64],"data.":[66,168],"Moreover,":[67],"changing":[68],"network":[69],"conditions":[70],"and":[71,181,201],"overlooked":[72],"temporal":[73,189],"factors":[74],"lead":[75],"reduced":[77],"accuracy.":[78],"response":[80],"these":[82],"challenges,":[83],"this":[84],"paper":[85],"proposes":[86],"a":[87,100,116,130,188,205],"novel":[88],"deep":[89],"learning":[90],"hash":[92,209,242],"method":[93],"for":[94,119,244,262],"time-aware":[95],"built":[98],"on":[99,143,193,227,271],"VQ-VAE":[101],"(namedPred$_{QoS}$QoS).":[102],"proposedPred$_{QoS}$QoS,":[105],"inspired":[106],"by":[107,139,150,191],"advanced":[108],"CF":[109],"approaches,":[110],"we":[111,128],"make":[112,179],"predictions":[114,255],"at":[115],"specific":[117],"moment":[118],"target":[121,264],"user":[122],"through":[123,259],"its":[124],"timeslots.":[126],"Specifically,":[127],"train":[129],"codebook":[131],"discretize":[133],"continuous":[135],"latent":[136],"representation":[137],"obtained":[138],"encoder":[141,218],"based":[142],"vector":[144],"quantization":[145],"(VQ),":[146],"which":[147],"is":[148],"motivated":[149],"generative":[152],"vector-quantized":[153],"variational":[154],"autoencoder":[155],"(VQ-VAE)":[156],"model,":[157],"allowing":[158],"us":[159],"derive":[161],"compact":[162,241],"binary":[163],"codes":[164,210,243],"representing":[165],"Then,":[169],"similarities":[171],"between":[172],"data":[174,196,213,247],"are":[175],"determined,":[176],"helping":[177],"effective":[180],"efficient":[182],"predictions.":[183],"Furthermore,":[184],"time-awarePred$_{QoS}$QoSapproach":[186],"incorporates":[187],"factor":[190],"training":[192],"multiple":[194],"(including":[197],"user,":[199],"service,":[200],"time":[202,223,250],"dimensions).":[203],"As":[204],"result,":[206],"discrete":[208],"(i.e.,":[211],"representations)":[214],"derived":[215],"from":[216],"can":[219],"fully":[220],"uncover":[221],"factor\u2019s":[224],"dynamic":[225],"impact":[226],"data,":[230],"thereby":[231],"yielding":[232],"significantly":[233],"improved":[234],"performance.":[236],"summary,":[238],"thePred$_{QoS}$QoSapproach":[239],"learns":[240],"original":[245],"while":[248],"taking":[249],"into":[251],"account,":[252],"enabling":[253],"accurate":[254],"be":[257],"produced":[258],"timeslots":[261],"Finally,":[266],"comprehensive":[267],"experiments":[268],"carried":[269],"out":[270],"real-world":[273],"WS-DREAM":[274],"dataset":[275],"affirm":[276],"exceptional":[278],"performance":[279],"thePred$_{QoS}$QoS.":[281]},"counts_by_year":[{"year":2026,"cited_by_count":2}],"updated_date":"2026-08-29T07:29:34.045763","created_date":"2025-10-10T00:00:00"}