{"id":"https://openalex.org/W4406523120","doi":"https://doi.org/10.1109/lsp.2025.3530850","title":"ExPO: Explainable Phonetic Trait-Oriented Network for Speaker Verification","display_name":"ExPO: Explainable Phonetic Trait-Oriented Network for Speaker Verification","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4406523120","doi":"https://doi.org/10.1109/lsp.2025.3530850"},"language":"en","primary_location":{"id":"doi:10.1109/lsp.2025.3530850","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2025.3530850","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"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 Signal Processing Letters","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/A5116252196","display_name":"Yi Ma","orcid":"https://orcid.org/0009-0008-5473-5498"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Yi Ma","raw_affiliation_strings":["Department of Electrical and Computer Engineering, National University of Singapore, Singapore"],"raw_orcid":"https://orcid.org/0009-0008-5473-5498","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100328340","display_name":"Shuai Wang","orcid":"https://orcid.org/0000-0003-1523-9631"},"institutions":[{"id":"https://openalex.org/I4210116924","display_name":"Chinese University of Hong Kong, Shenzhen","ror":"https://ror.org/02d5ks197","country_code":"CN","type":"education","lineage":["https://openalex.org/I177725633","https://openalex.org/I180726961","https://openalex.org/I4210116924"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuai Wang","raw_affiliation_strings":["Shenzhen Research Institute of Big data, School of Data Science, The Chinese University of Hong Kong, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-1523-9631","affiliations":[{"raw_affiliation_string":"Shenzhen Research Institute of Big data, School of Data Science, The Chinese University of Hong Kong, Shenzhen, China","institution_ids":["https://openalex.org/I4210116924"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013047791","display_name":"Tianchi Liu","orcid":"https://orcid.org/0000-0003-3472-0703"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Tianchi Liu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, National University of Singapore, Singapore"],"raw_orcid":"https://orcid.org/0000-0003-3472-0703","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5032690182","display_name":"Haizhou Li","orcid":"https://orcid.org/0000-0001-9158-9401"},"institutions":[{"id":"https://openalex.org/I4210116924","display_name":"Chinese University of Hong Kong, Shenzhen","ror":"https://ror.org/02d5ks197","country_code":"CN","type":"education","lineage":["https://openalex.org/I177725633","https://openalex.org/I180726961","https://openalex.org/I4210116924"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Haizhou Li","raw_affiliation_strings":["Shenzhen Research Institute of Big data, School of Data Science, The Chinese University of Hong Kong, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0001-9158-9401","affiliations":[{"raw_affiliation_string":"Shenzhen Research Institute of Big data, School of Data Science, The Chinese University of Hong Kong, Shenzhen, China","institution_ids":["https://openalex.org/I4210116924"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":5.584,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.94976259,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"32","issue":null,"first_page":"731","last_page":"735"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10201","display_name":"Speech Recognition and Synthesis","score":0.9998999834060669,"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/T10201","display_name":"Speech Recognition and Synthesis","score":0.9998999834060669,"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/T11309","display_name":"Music and Audio Processing","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10181","display_name":"Natural Language Processing Techniques","score":0.9965999722480774,"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":0.7854723930358887},{"id":"https://openalex.org/keywords/trait","display_name":"Trait","score":0.5620060563087463},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.5588692426681519},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.5551149249076843},{"id":"https://openalex.org/keywords/speaker-verification","display_name":"Speaker verification","score":0.5426661372184753},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5402135848999023},{"id":"https://openalex.org/keywords/speaker-recognition","display_name":"Speaker recognition","score":0.4799511730670929},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.0800504982471466}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7854723930358887},{"id":"https://openalex.org/C106934330","wikidata":"https://www.wikidata.org/wiki/Q1971873","display_name":"Trait","level":2,"score":0.5620060563087463},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.5588692426681519},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.5551149249076843},{"id":"https://openalex.org/C2982762665","wikidata":"https://www.wikidata.org/wiki/Q1145189","display_name":"Speaker verification","level":3,"score":0.5426661372184753},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5402135848999023},{"id":"https://openalex.org/C133892786","wikidata":"https://www.wikidata.org/wiki/Q1145189","display_name":"Speaker recognition","level":2,"score":0.4799511730670929},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0800504982471466}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lsp.2025.3530850","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2025.3530850","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"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 Signal Processing Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.4300000071525574}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W105311456","https://openalex.org/W241284251","https://openalex.org/W574283929","https://openalex.org/W1494198834","https://openalex.org/W2005643240","https://openalex.org/W2049586080","https://openalex.org/W2121750345","https://openalex.org/W2516764878","https://openalex.org/W2808631503","https://openalex.org/W2890964092","https://openalex.org/W2922877929","https://openalex.org/W2962858109","https://openalex.org/W2964247977","https://openalex.org/W2969985801","https://openalex.org/W3015648588","https://openalex.org/W3024869864","https://openalex.org/W3097659012","https://openalex.org/W3139024197","https://openalex.org/W3160397447","https://openalex.org/W3196244034","https://openalex.org/W3197848469","https://openalex.org/W3198024420","https://openalex.org/W3207272747","https://openalex.org/W4205654098","https://openalex.org/W4220961503","https://openalex.org/W4223587462","https://openalex.org/W4226184234","https://openalex.org/W4236350312","https://openalex.org/W4255198456","https://openalex.org/W4296068768","https://openalex.org/W4366147765","https://openalex.org/W4372340947","https://openalex.org/W4372341266","https://openalex.org/W4385822451","https://openalex.org/W4385822711","https://openalex.org/W4385822943","https://openalex.org/W4385823321","https://openalex.org/W4385823355","https://openalex.org/W4391021709","https://openalex.org/W4391640631","https://openalex.org/W4392930659","https://openalex.org/W4396982391","https://openalex.org/W4398228866","https://openalex.org/W4399252330","https://openalex.org/W6869157056"],"related_works":["https://openalex.org/W1491159402","https://openalex.org/W66821593","https://openalex.org/W4297807400","https://openalex.org/W2249138175","https://openalex.org/W1521299571","https://openalex.org/W4313854686","https://openalex.org/W3162054169","https://openalex.org/W1813780412","https://openalex.org/W1516392727","https://openalex.org/W2140022733"],"abstract_inverted_index":{"In":[0],"speaker":[1,54,109,125,147,155],"verification,":[2,148],"we":[3,48,129],"use":[4],"computational":[5],"method":[6],"to":[7,23,39,51,62,82,139],"verify":[8],"if":[9],"an":[10,16,123,150],"utterance":[11],"matches":[12],"the":[13,24,84,92,96],"identity":[14],"of":[15,27,119],"enrolled":[17],"speaker.":[18],"This":[19],"task":[20,26],"is":[21,34,77,143],"similar":[22],"manual":[25,65],"forensic":[28,66,101],"voice":[29,43,67],"comparison,":[30],"where":[31],"linguistic":[32],"analysis":[33,116],"combined":[35],"with":[36],"auditory":[37],"measurements":[38],"compare":[40],"and":[41,117,135],"evaluate":[42],"samples.":[44],"Despite":[45],"much":[46],"success,":[47],"have":[49],"yet":[50],"develop":[52],"a":[53],"verification":[55,126],"system":[56],"that":[57],"offers":[58],"explainable":[59,124,154],"results":[60],"comparable":[61],"those":[63],"from":[64,133],"comparison.":[68],"A":[69],"novel":[70],"approach,":[71],"Explainable":[72],"Phonetic":[73],"Trait-Oriented":[74],"(ExPO)":[75],"network,":[76],"proposed":[78],"in":[79],"this":[80],"letter":[81],"introduce":[83],"speaker's":[85,93],"<italic":[86],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[87],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">phonetic":[88],"trait</i>":[89],"which":[90,141],"describes":[91],"characteristics":[94],"at":[95],"phonetic":[97,120,131],"level,":[98],"resembling":[99],"what":[100],"comparison":[102],"does.":[103],"ExPO":[104],"not":[105],"only":[106],"generates":[107],"utterance-level":[108],"embeddings":[110],"but":[111],"also":[112],"allows":[113],"for":[114,146],"fine-grained":[115],"visualization":[118],"traits,":[121],"offering":[122],"process.":[127],"Furthermore,":[128],"investigate":[130],"traits":[132],"within-speaker":[134],"between-speaker":[136],"variation":[137],"perspectives":[138],"determine":[140],"trait":[142],"most":[144],"effective":[145],"marking":[149],"important":[151],"step":[152],"towards":[153],"verification.":[156]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
