{"id":"https://openalex.org/W4417337823","doi":"https://doi.org/10.1109/tsp.2025.3643595","title":"Optimal Transport Regularization for Simulation-Informed Room Impulse Response Estimation","display_name":"Optimal Transport Regularization for Simulation-Informed Room Impulse Response Estimation","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4417337823","doi":"https://doi.org/10.1109/tsp.2025.3643595"},"language":"en","primary_location":{"id":"doi:10.1109/tsp.2025.3643595","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tsp.2025.3643595","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Signal Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1109/tsp.2025.3643595","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5113776139","display_name":"Anton Bj\u00f6rkman","orcid":null},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Anton Bjorkman","raw_affiliation_strings":["Department of Information and Communications Engineering, Aalto University, Espoo, Finland","Dept. of Information and Communications Engineering, Aalto University, Finland"],"raw_orcid":"https://orcid.org/0009-0008-7066-3017","affiliations":[{"raw_affiliation_string":"Department of Information and Communications Engineering, Aalto University, Espoo, Finland","institution_ids":["https://openalex.org/I9927081"]},{"raw_affiliation_string":"Dept. of Information and Communications Engineering, Aalto University, Finland","institution_ids":["https://openalex.org/I9927081"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102949851","display_name":"David Sundstr\u00f6m","orcid":"https://orcid.org/0000-0002-5954-4745"},"institutions":[{"id":"https://openalex.org/I1279596006","display_name":"Statistics Sweden","ror":"https://ror.org/05x7wz523","country_code":"SE","type":"government","lineage":["https://openalex.org/I1279596006"]},{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"David Sundstrom","raw_affiliation_strings":["Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-5954-4745","affiliations":[{"raw_affiliation_string":"Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I1279596006","https://openalex.org/I187531555"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037213595","display_name":"Andreas Jakobsson","orcid":"https://orcid.org/0000-0002-2156-6973"},"institutions":[{"id":"https://openalex.org/I1279596006","display_name":"Statistics Sweden","ror":"https://ror.org/05x7wz523","country_code":"SE","type":"government","lineage":["https://openalex.org/I1279596006"]},{"id":"https://openalex.org/I187531555","display_name":"Lund University","ror":"https://ror.org/012a77v79","country_code":"SE","type":"education","lineage":["https://openalex.org/I187531555"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Andreas Jakobsson","raw_affiliation_strings":["Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-2156-6973","affiliations":[{"raw_affiliation_string":"Centre for Mathematical Sciences, Mathematical Statistics, Lund University, Lund, Sweden","institution_ids":["https://openalex.org/I1279596006","https://openalex.org/I187531555"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5013286528","display_name":"Filip Elvander","orcid":"https://orcid.org/0000-0003-1857-2173"},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Filip Elvander","raw_affiliation_strings":["Department of Information and Communications Engineering, Aalto University, Espoo, Finland","Dept. of Information and Communications Engineering, Aalto University, Finland"],"raw_orcid":"https://orcid.org/0000-0003-1857-2173","affiliations":[{"raw_affiliation_string":"Department of Information and Communications Engineering, Aalto University, Espoo, Finland","institution_ids":["https://openalex.org/I9927081"]},{"raw_affiliation_string":"Dept. of Information and Communications Engineering, Aalto University, Finland","institution_ids":["https://openalex.org/I9927081"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5113776139"],"corresponding_institution_ids":["https://openalex.org/I9927081"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.44070635,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"73","issue":null,"first_page":"5244","last_page":"5256"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.4584999978542328,"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":0.4584999978542328,"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":0.3538999855518341,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10283","display_name":"Hearing Loss and Rehabilitation","score":0.13570000231266022,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/tikhonov-regularization","display_name":"Tikhonov regularization","score":0.7538999915122986},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.671500027179718},{"id":"https://openalex.org/keywords/prior-probability","display_name":"Prior probability","score":0.6601999998092651},{"id":"https://openalex.org/keywords/impulse-response","display_name":"Impulse response","score":0.5116000175476074},{"id":"https://openalex.org/keywords/impulse","display_name":"Impulse (physics)","score":0.4810999929904938},{"id":"https://openalex.org/keywords/solver","display_name":"Solver","score":0.4634000062942505},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.4036000072956085},{"id":"https://openalex.org/keywords/amplitude","display_name":"Amplitude","score":0.39410001039505005}],"concepts":[{"id":"https://openalex.org/C152442038","wikidata":"https://www.wikidata.org/wiki/Q2778212","display_name":"Tikhonov regularization","level":3,"score":0.7538999915122986},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.671500027179718},{"id":"https://openalex.org/C177769412","wikidata":"https://www.wikidata.org/wiki/Q278090","display_name":"Prior probability","level":3,"score":0.6601999998092651},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5221999883651733},{"id":"https://openalex.org/C72279823","wikidata":"https://www.wikidata.org/wiki/Q1139726","display_name":"Impulse response","level":2,"score":0.5116000175476074},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5006999969482422},{"id":"https://openalex.org/C70836080","wikidata":"https://www.wikidata.org/wiki/Q837940","display_name":"Impulse (physics)","level":2,"score":0.4810999929904938},{"id":"https://openalex.org/C2778770139","wikidata":"https://www.wikidata.org/wiki/Q1966904","display_name":"Solver","level":2,"score":0.4634000062942505},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4401000142097473},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.4036000072956085},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.39410001039505005},{"id":"https://openalex.org/C2776135515","wikidata":"https://www.wikidata.org/wiki/Q17143721","display_name":"Regularization (linguistics)","level":2,"score":0.3901999890804291},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.38909998536109924},{"id":"https://openalex.org/C29265498","wikidata":"https://www.wikidata.org/wiki/Q7047719","display_name":"Noise measurement","level":3,"score":0.3783999979496002},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.36079999804496765},{"id":"https://openalex.org/C3020402766","wikidata":"https://www.wikidata.org/wiki/Q104376712","display_name":"Prior information","level":2,"score":0.31929999589920044},{"id":"https://openalex.org/C127372701","wikidata":"https://www.wikidata.org/wiki/Q16979398","display_name":"Impulse noise","level":3,"score":0.31220000982284546},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.30000001192092896},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.2849000096321106},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.27309998869895935},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.2651999890804291},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.2538999915122986}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/tsp.2025.3643595","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tsp.2025.3643595","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Signal Processing","raw_type":"journal-article"},{"id":"pmh:oai:aaltodoc.aalto.fi:123456789/144162","is_oa":true,"landing_page_url":"https://doi.org/10.1109/TSP.2025.3643595","pdf_url":"https://research.aalto.fi/files/219209877/Optimal_Transport_Regularization_for_Simulation-Informed_Room_Impulse_Response_Estimation.pdf","source":{"id":"https://openalex.org/S4306401662","display_name":"Aaltodoc (Aalto University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I9927081","host_organization_name":"Aalto University","host_organization_lineage":["https://openalex.org/I9927081"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"publishedVersion"},{"id":"pmh:oai:lup.lub.lu.se:42ce450e-9225-4707-bc6c-3b2ecfb5b233","is_oa":false,"landing_page_url":"https://lup.lub.lu.se/record/42ce450e-9225-4707-bc6c-3b2ecfb5b233","pdf_url":null,"source":{"id":"https://openalex.org/S4306400536","display_name":"Lund University Publications (Lund University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I187531555","host_organization_name":"Lund University","host_organization_lineage":["https://openalex.org/I187531555"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"ISSN: 1053-587X","raw_type":"text"}],"best_oa_location":{"id":"doi:10.1109/tsp.2025.3643595","is_oa":true,"landing_page_url":"https://doi.org/10.1109/tsp.2025.3643595","pdf_url":null,"source":{"id":"https://openalex.org/S168680287","display_name":"IEEE Transactions on Signal Processing","issn_l":"1053-587X","issn":["1053-587X","1941-0476"],"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Signal Processing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2268171191","display_name":"AESIR: Acoustic Estimation, Sampling, and Interpolation fRamework","funder_award_id":"362787","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"},{"id":"https://openalex.org/G3610427737","display_name":null,"funder_award_id":"362787","funder_id":"https://openalex.org/F4320321108","funder_display_name":"Academy of Finland"}],"funders":[{"id":"https://openalex.org/F4320321108","display_name":"Academy of Finland","ror":"https://ror.org/05k73zm37"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W105282281","https://openalex.org/W1504642953","https://openalex.org/W1971115669","https://openalex.org/W2003190130","https://openalex.org/W2013850411","https://openalex.org/W2019787708","https://openalex.org/W2033819227","https://openalex.org/W2044704240","https://openalex.org/W2060440191","https://openalex.org/W2065804682","https://openalex.org/W2069291142","https://openalex.org/W2074604179","https://openalex.org/W2080773601","https://openalex.org/W2100556411","https://openalex.org/W2117678320","https://openalex.org/W2130327601","https://openalex.org/W2144039164","https://openalex.org/W2155037147","https://openalex.org/W2155595938","https://openalex.org/W2204353980","https://openalex.org/W2566109169","https://openalex.org/W2911394281","https://openalex.org/W2912619267","https://openalex.org/W2999010383","https://openalex.org/W3009330671","https://openalex.org/W3035318263","https://openalex.org/W3116275044","https://openalex.org/W4206471589","https://openalex.org/W4233762729","https://openalex.org/W4320015822","https://openalex.org/W4372259768","https://openalex.org/W4386066812","https://openalex.org/W4392397469","https://openalex.org/W4392903766","https://openalex.org/W4401549170","https://openalex.org/W4404577137","https://openalex.org/W4410551014"],"related_works":[],"abstract_inverted_index":{"Many":[0],"audio":[1],"applications,":[2,22],"including":[3],"echocancellation":[4],"and":[5,32,110,113,160,199],"active":[6],"noise":[7],"control,":[8],"rely":[9],"on":[10,53,142,157,166],"the":[11,27,42,45,54,57,66,74,78,88,99,105,111,120,124,143,174,177,183,185,192,197,209,216,220,232],"availability":[12],"of":[13,35,44,56,77,98,108,123,131,145],"accurately":[14],"estimated":[15],"room":[16,223],"impulse":[17],"responses":[18],"(RIRs).":[19],"For":[20,148],"these":[21],"it":[23],"is":[24,30,80,90,154,180,212],"common":[25],"that":[26,171],"source":[28,112],"signal":[29],"short":[31],"primarily":[33],"consists":[34],"speech":[36],"or":[37],"music,":[38],"which":[39],"may":[40],"cause":[41,117],"estimation":[43,140,193],"RIR":[46,58,79,93,139],"to":[47,64,196],"be":[48,62],"poorly":[49],"conditioned.":[50],"Although":[51],"priors":[52],"amplitudes":[55],"could":[59],"in":[60,104,119,176,182,189,208],"principle":[61],"used":[63],"resolve":[65],"conditioning":[67],"issue,":[68],"there":[69],"are":[70],"situations":[71],"where":[72,102],"also":[73,213],"delay":[75,121,210],"structure":[76,122,179,211],"uncertain.":[81],"In":[82],"particular,":[83],"we":[84,133,169],"here":[85],"consider":[86],"when":[87,172,204],"prior":[89,187],"a":[91,96,226],"simulated":[92,125,186],"obtained":[94],"from":[95,101],"3D-reconstruction":[97],"room,":[100],"uncertainties":[103,118,207],"geometry,":[106],"speed":[107],"sound,":[109],"receiver":[114],"positions":[115],"all":[116],"RIR.":[126],"By":[127],"considering":[128],"such":[129],"sources":[130],"error,":[132],"derive":[134],"two":[135],"robust":[136],"regularizers":[137],"for":[138,206],"based":[141,156],"concept":[144],"optimal":[146],"transport.":[147],"each":[149],"estimator,":[150],"an":[151],"efficient":[152],"solver":[153],"proposed":[155,217],"proximal":[158],"splitting":[159],"Sinkhorn-type":[161],"iterations.":[162],"From":[163],"numerical":[164],"experiments":[165],"real":[167],"data,":[168],"find":[170],"only":[173],"uncertainty":[175],"amplitude":[178],"considered":[181],"regularizer,":[184],"can":[188,229],"fact":[190],"worsen":[191],"as":[194],"compared":[195],"Tikhonov":[198],"Lasso":[200],"estimators.":[201],"Interestingly":[202],"enough,":[203],"robustness":[205],"introduced":[214],"using":[215],"regularizers,":[218],"even":[219],"most":[221],"naive":[222],"model,":[224],"i.e.,":[225],"shoe-box":[227],"approximation,":[228],"significantly":[230],"improve":[231],"estimate.":[233]},"counts_by_year":[],"updated_date":"2026-05-16T08:24:45.110214","created_date":"2025-12-15T00:00:00"}