{"id":"https://openalex.org/W2937330597","doi":"https://doi.org/10.1109/icassp.2019.8682878","title":"A Sparsity Measure for Echo Density Growth in General Environments","display_name":"A Sparsity Measure for Echo Density Growth in General Environments","publication_year":2019,"publication_date":"2019-04-17","ids":{"openalex":"https://openalex.org/W2937330597","doi":"https://doi.org/10.1109/icassp.2019.8682878","mag":"2937330597"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2019.8682878","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2019.8682878","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://research.aalto.fi/en/publications/797105eb-8e07-4a17-8e0e-55c2d44a2299","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5050390551","display_name":"Helena Pei\u0107 Tukuljac","orcid":null},"institutions":[{"id":"https://openalex.org/I5124864","display_name":"\u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne","ror":"https://ror.org/02s376052","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I5124864"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Helena Peic Tukuljac","raw_affiliation_strings":["\u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne (EPFL), Switzerland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"\u00c9cole polytechnique f\u00e9d\u00e9rale de Lausanne (EPFL), Switzerland","institution_ids":["https://openalex.org/I5124864"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033040947","display_name":"Ville Pulkki","orcid":"https://orcid.org/0000-0003-3460-9677"},"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":"Ville Pulkki","raw_affiliation_strings":["Aalto University, Espoo, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Aalto University, Espoo, Finland","institution_ids":["https://openalex.org/I9927081"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5036868085","display_name":"Hannes Gamper","orcid":"https://orcid.org/0000-0002-2148-6367"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hannes Gamper","raw_affiliation_strings":["Microsoft Research, WA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microsoft Research, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068934511","display_name":"Keith W. Godin","orcid":null},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Keith Godin","raw_affiliation_strings":["Microsoft Research, WA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microsoft Research, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5007425970","display_name":"Ivan Tashev","orcid":"https://orcid.org/0000-0002-2263-2047"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ivan J. Tashev","raw_affiliation_strings":["Microsoft Research, WA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microsoft Research, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5057559622","display_name":"Nikunj Raghuvanshi","orcid":"https://orcid.org/0000-0002-9154-5625"},"institutions":[{"id":"https://openalex.org/I1290206253","display_name":"Microsoft (United States)","ror":"https://ror.org/00d0nc645","country_code":"US","type":"company","lineage":["https://openalex.org/I1290206253"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Nikunj Raghuvanshi","raw_affiliation_strings":["Microsoft Research, WA, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microsoft Research, WA, USA","institution_ids":["https://openalex.org/I1290206253"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.1683,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.78458823,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"121","issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9994999766349792,"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":0.9994999766349792,"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/T10283","display_name":"Hearing Loss and Rehabilitation","score":0.9983000159263611,"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"}},{"id":"https://openalex.org/T11309","display_name":"Music and Audio Processing","score":0.9980999827384949,"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/rendering","display_name":"Rendering (computer graphics)","score":0.730209231376648},{"id":"https://openalex.org/keywords/measure","display_name":"Measure (data warehouse)","score":0.6417887806892395},{"id":"https://openalex.org/keywords/echo","display_name":"Echo (communications protocol)","score":0.6093766093254089},{"id":"https://openalex.org/keywords/impulse","display_name":"Impulse (physics)","score":0.5435130596160889},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5127369165420532},{"id":"https://openalex.org/keywords/impulse-response","display_name":"Impulse response","score":0.50350421667099},{"id":"https://openalex.org/keywords/statistical-physics","display_name":"Statistical physics","score":0.47283822298049927},{"id":"https://openalex.org/keywords/general-theory","display_name":"General theory","score":0.4217606782913208},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.35117393732070923},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2963602542877197},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.23509913682937622},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.22556716203689575},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.1928166151046753},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.15475308895111084},{"id":"https://openalex.org/keywords/theoretical-physics","display_name":"Theoretical physics","score":0.08061403036117554},{"id":"https://openalex.org/keywords/classical-mechanics","display_name":"Classical mechanics","score":0.07778170704841614}],"concepts":[{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.730209231376648},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.6417887806892395},{"id":"https://openalex.org/C2779426996","wikidata":"https://www.wikidata.org/wiki/Q18389128","display_name":"Echo (communications protocol)","level":2,"score":0.6093766093254089},{"id":"https://openalex.org/C70836080","wikidata":"https://www.wikidata.org/wiki/Q837940","display_name":"Impulse (physics)","level":2,"score":0.5435130596160889},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5127369165420532},{"id":"https://openalex.org/C72279823","wikidata":"https://www.wikidata.org/wiki/Q1139726","display_name":"Impulse response","level":2,"score":0.50350421667099},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.47283822298049927},{"id":"https://openalex.org/C2992002026","wikidata":"https://www.wikidata.org/wiki/Q1111474","display_name":"General theory","level":2,"score":0.4217606782913208},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.35117393732070923},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2963602542877197},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.23509913682937622},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.22556716203689575},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.1928166151046753},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.15475308895111084},{"id":"https://openalex.org/C33332235","wikidata":"https://www.wikidata.org/wiki/Q18362","display_name":"Theoretical physics","level":1,"score":0.08061403036117554},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.07778170704841614},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/icassp.2019.8682878","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2019.8682878","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"},{"id":"pmh:oai:aaltodoc.aalto.fi:123456789/38296","is_oa":true,"landing_page_url":"https://research.aalto.fi/en/publications/797105eb-8e07-4a17-8e0e-55c2d44a2299","pdf_url":null,"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":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"acceptedVersion"},{"id":"pmh:oai:infoscience.epfl.ch:270732","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/270732","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"conference proceedings"}],"best_oa_location":{"id":"pmh:oai:aaltodoc.aalto.fi:123456789/38296","is_oa":true,"landing_page_url":"https://research.aalto.fi/en/publications/797105eb-8e07-4a17-8e0e-55c2d44a2299","pdf_url":null,"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":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"acceptedVersion"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1524790877","https://openalex.org/W1556019747","https://openalex.org/W1557831657","https://openalex.org/W1577569110","https://openalex.org/W1672047070","https://openalex.org/W1977703546","https://openalex.org/W1989314204","https://openalex.org/W2002507711","https://openalex.org/W2025127228","https://openalex.org/W2034491412","https://openalex.org/W2064490197","https://openalex.org/W2144313611","https://openalex.org/W2559741809","https://openalex.org/W2611557825","https://openalex.org/W2810259310","https://openalex.org/W3146186587","https://openalex.org/W4233097404","https://openalex.org/W6631338219","https://openalex.org/W6632898326","https://openalex.org/W6633301432","https://openalex.org/W6634389747"],"related_works":["https://openalex.org/W1473737476","https://openalex.org/W2949162897","https://openalex.org/W2061432289","https://openalex.org/W2276571074","https://openalex.org/W4300003799","https://openalex.org/W2158582019","https://openalex.org/W1500087777","https://openalex.org/W1970204757","https://openalex.org/W2272518678","https://openalex.org/W2140267235"],"abstract_inverted_index":{"We":[0,55],"study":[1],"the":[2,57,82],"detailed":[3],"temporal":[4],"evolution":[5],"of":[6,37,85],"echo":[7,38,86],"density":[8,30,39,87],"in":[9,14,75],"impulse":[10,73],"responses":[11,74],"for":[12],"applications":[13],"acoustic":[15],"analysis":[16],"and":[17,65,70,100],"rendering":[18],"on":[19,61,68],"general":[20,48],"environments.":[21],"For":[22],"this":[23],"purpose,":[24],"we":[25],"propose":[26],"a":[27,47,89],"smooth":[28],"sorted":[29],"measure":[31],"that":[32,81,93],"yields":[33],"an":[34],"intuitive":[35],"trend":[36],"growth":[40,83],"with":[41,46],"time.":[42],"This":[43],"is":[44,88],"fitted":[45],"power-law":[49],"model":[50],"motivated":[51],"from":[52],"theoretical":[53],"considerations.":[54],"validate":[56],"framework":[58],"against":[59],"theory":[60],"simple":[62],"room":[63],"geometries":[64],"present":[66],"experiments":[67],"measured":[69],"numerically":[71],"simulated":[72],"complex":[76],"scenes.":[77],"Our":[78],"results":[79],"show":[80],"power":[84],"promising":[90],"statistical":[91],"parameter":[92],"shows":[94],"noticeable,":[95],"consistent":[96],"differences":[97],"between":[98],"indoor":[99],"outdoor":[101],"responses,":[102],"meriting":[103],"further":[104],"study.":[105]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
