{"id":"https://openalex.org/W4416798600","doi":"https://doi.org/10.1109/apsipaasc65261.2025.11249098","title":"Auxiliary-Function-Based Decentralized Independent Vector Analysis for Distributed Microphone Arrays","display_name":"Auxiliary-Function-Based Decentralized Independent Vector Analysis for Distributed Microphone Arrays","publication_year":2025,"publication_date":"2025-10-22","ids":{"openalex":"https://openalex.org/W4416798600","doi":"https://doi.org/10.1109/apsipaasc65261.2025.11249098"},"language":null,"primary_location":{"id":"doi:10.1109/apsipaasc65261.2025.11249098","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apsipaasc65261.2025.11249098","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)","raw_type":"proceedings-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/A5005122247","display_name":"Kouei Yamaoka","orcid":"https://orcid.org/0000-0001-9081-024X"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kouei Yamaoka","raw_affiliation_strings":["The University of Tokyo,Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo,Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015666504","display_name":"Katsuhiro Morita","orcid":"https://orcid.org/0009-0006-2087-5674"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Katsuhiro Morita","raw_affiliation_strings":["The University of Tokyo,Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo,Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051506797","display_name":"Norihiro Takamune","orcid":"https://orcid.org/0000-0002-8102-3110"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Norihiro Takamune","raw_affiliation_strings":["The University of Tokyo,Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo,Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003814223","display_name":"Hiroshi Saruwatari","orcid":"https://orcid.org/0000-0003-0876-5617"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroshi Saruwatari","raw_affiliation_strings":["The University of Tokyo,Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo,Japan","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5005122247"],"corresponding_institution_ids":["https://openalex.org/I74801974"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.47803496,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"54","last_page":"59"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.5521000027656555,"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"}},"topics":[{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.5521000027656555,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.41850000619888306,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.008200000040233135,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/microphone","display_name":"Microphone","score":0.7440999746322632},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.6622999906539917},{"id":"https://openalex.org/keywords/stability","display_name":"Stability (learning theory)","score":0.5795000195503235},{"id":"https://openalex.org/keywords/independent-component-analysis","display_name":"Independent component analysis","score":0.5181999802589417},{"id":"https://openalex.org/keywords/blind-signal-separation","display_name":"Blind signal separation","score":0.515500009059906},{"id":"https://openalex.org/keywords/microphone-array","display_name":"Microphone array","score":0.5037999749183655},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.44600000977516174}],"concepts":[{"id":"https://openalex.org/C2778263558","wikidata":"https://www.wikidata.org/wiki/Q46384","display_name":"Microphone","level":3,"score":0.7440999746322632},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.6622999906539917},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6614000201225281},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.5795000195503235},{"id":"https://openalex.org/C51432778","wikidata":"https://www.wikidata.org/wiki/Q1259145","display_name":"Independent component analysis","level":2,"score":0.5181999802589417},{"id":"https://openalex.org/C120317606","wikidata":"https://www.wikidata.org/wiki/Q17105967","display_name":"Blind signal separation","level":3,"score":0.515500009059906},{"id":"https://openalex.org/C2778806681","wikidata":"https://www.wikidata.org/wiki/Q907293","display_name":"Microphone array","level":4,"score":0.5037999749183655},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.44600000977516174},{"id":"https://openalex.org/C205875254","wikidata":"https://www.wikidata.org/wiki/Q17156857","display_name":"Decentralised system","level":3,"score":0.44290000200271606},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4185999929904938},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.40790000557899475},{"id":"https://openalex.org/C130120984","wikidata":"https://www.wikidata.org/wiki/Q2835898","display_name":"Distributed algorithm","level":2,"score":0.31060001254081726},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.3034000098705292},{"id":"https://openalex.org/C4679612","wikidata":"https://www.wikidata.org/wiki/Q866298","display_name":"Aggregate (composite)","level":2,"score":0.2989000082015991},{"id":"https://openalex.org/C2776864781","wikidata":"https://www.wikidata.org/wiki/Q52617913","display_name":"Source separation","level":2,"score":0.28679999709129333},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.27000001072883606},{"id":"https://openalex.org/C115680565","wikidata":"https://www.wikidata.org/wiki/Q5977448","display_name":"Gradient method","level":2,"score":0.26739999651908875},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.2513999938964844}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/apsipaasc65261.2025.11249098","is_oa":false,"landing_page_url":"https://doi.org/10.1109/apsipaasc65261.2025.11249098","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 Asia Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W285277413","https://openalex.org/W1543386260","https://openalex.org/W1876052200","https://openalex.org/W1969451335","https://openalex.org/W2023972572","https://openalex.org/W2071608040","https://openalex.org/W2072548008","https://openalex.org/W2092463830","https://openalex.org/W2108325737","https://openalex.org/W2114461480","https://openalex.org/W2117383831","https://openalex.org/W2127851351","https://openalex.org/W2170768669","https://openalex.org/W2291813093","https://openalex.org/W2412956798","https://openalex.org/W2502139158","https://openalex.org/W2722916767","https://openalex.org/W2747805921","https://openalex.org/W2763188033","https://openalex.org/W2918296821","https://openalex.org/W2997688633","https://openalex.org/W3132229649","https://openalex.org/W3154119858","https://openalex.org/W3162567419","https://openalex.org/W3207860153","https://openalex.org/W4372347387","https://openalex.org/W4392114354","https://openalex.org/W4408355408","https://openalex.org/W4410853193"],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"a":[3,22,46,101,106],"novel":[4],"blind":[5],"source":[6],"separation":[7],"(BSS)":[8],"method":[9,31],"for":[10,34,90],"distributed":[11,95],"microphone":[12,96],"arrays,":[13],"namely,":[14],"auxiliary-function-based":[15,110],"decentralized":[16,23,51,88,102,122],"independent":[17],"vector":[18],"analysis":[19],"(IVA).":[20],"Previously,":[21],"IVA":[24,52,89,103,111],"algorithm":[25,104,130],"based":[26],"on":[27],"the":[28,50,69,84,114,120,128,137],"natural":[29,138],"gradient":[30],"was":[32],"proposed":[33,129],"image":[35],"signals.":[36],"Unlike":[37],"conventional":[38,121],"BSS":[39],"approaches,":[40],"which":[41],"aggregate":[42],"all":[43],"observations":[44],"at":[45],"central":[47],"processing":[48],"unit,":[49],"utilizes":[53],"signals":[54,70,92],"only":[55],"within":[56],"small":[57],"groups":[58],"of":[59,87,109,119],"nearby":[60],"microphones,":[61],"referred":[62],"to":[63,112],"as":[64,105],"subarrays,":[65],"and":[66,117,133,141],"shares":[67],"not":[68],"themselves,":[71],"but":[72],"their":[73],"power":[74],"information":[75],"among":[76],"subarrays.":[77],"In":[78],"this":[79],"paper,":[80],"we":[81],"first":[82],"formulate":[83],"optimization":[85],"problem":[86],"audio":[91],"captured":[93],"by":[94],"arrays.":[97],"We":[98],"then":[99],"derive":[100],"modified":[107],"version":[108],"improve":[113],"convergence":[115],"speed":[116],"stability":[118],"IVA.":[123,147],"Experimental":[124],"results":[125],"demonstrate":[126],"that":[127],"converges":[131],"faster":[132],"more":[134],"stably":[135],"than":[136,145],"gradient-based":[139],"approach":[140],"achieves":[142],"better":[143],"performance":[144],"centralized":[146]},"counts_by_year":[],"updated_date":"2026-03-07T16:01:11.037858","created_date":"2025-11-28T00:00:00"}