{"id":"https://openalex.org/W2019581453","doi":"https://doi.org/10.1162/neco_a_00485","title":"Spherical Mesh Adaptive Direct Search for Separating Quasi-Uncorrelated Sources by Range-Based Independent Component Analysis","display_name":"Spherical Mesh Adaptive Direct Search for Separating Quasi-Uncorrelated Sources by Range-Based Independent Component Analysis","publication_year":2013,"publication_date":"2013-06-18","ids":{"openalex":"https://openalex.org/W2019581453","doi":"https://doi.org/10.1162/neco_a_00485","mag":"2019581453","pmid":"https://pubmed.ncbi.nlm.nih.gov/23777522"},"language":"en","primary_location":{"id":"doi:10.1162/neco_a_00485","is_oa":false,"landing_page_url":"https://doi.org/10.1162/neco_a_00485","pdf_url":null,"source":{"id":"https://openalex.org/S207023548","display_name":"Neural Computation","issn_l":"0899-7667","issn":["0899-7667","1530-888X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315718","host_organization_name":"The MIT Press","host_organization_lineage":["https://openalex.org/P4310315718"],"host_organization_lineage_names":["The MIT Press"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Neural Computation","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"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/A5068395433","display_name":"Easter S. Suviseshamuthu","orcid":"https://orcid.org/0000-0002-8584-5947"},"institutions":[{"id":"https://openalex.org/I95674353","display_name":"UCLouvain","ror":"https://ror.org/02495e989","country_code":"BE","type":"education","lineage":["https://openalex.org/I95674353"]}],"countries":["BE"],"is_corresponding":true,"raw_author_name":"S. Easter Selvan","raw_affiliation_strings":["Department of Mathematical Engineering, ICTEAM Institute, Universit\u00e9 catholique de Louvain, 1348 Louvain-la-Neuve, Belgium"],"affiliations":[{"raw_affiliation_string":"Department of Mathematical Engineering, ICTEAM Institute, Universit\u00e9 catholique de Louvain, 1348 Louvain-la-Neuve, Belgium","institution_ids":["https://openalex.org/I95674353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035028867","display_name":"P. Borckmans","orcid":null},"institutions":[{"id":"https://openalex.org/I95674353","display_name":"UCLouvain","ror":"https://ror.org/02495e989","country_code":"BE","type":"education","lineage":["https://openalex.org/I95674353"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Pierre B. Borckmans","raw_affiliation_strings":["Department of Mathematical Engineering, ICTEAM Institute, Universit\u00e9 catholique de Louvain, 1348 Louvain-la-Neuve, Belgium"],"affiliations":[{"raw_affiliation_string":"Department of Mathematical Engineering, ICTEAM Institute, Universit\u00e9 catholique de Louvain, 1348 Louvain-la-Neuve, Belgium","institution_ids":["https://openalex.org/I95674353"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5040771905","display_name":"Amit Chattopadhyay","orcid":"https://orcid.org/0000-0003-4691-3019"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. Chattopadhyay","raw_affiliation_strings":["School of Computing, University of Leeds, Leeds LS2 9JT, U.K"],"affiliations":[{"raw_affiliation_string":"School of Computing, University of Leeds, Leeds LS2 9JT, U.K","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5075495386","display_name":"Pierre-Antoine Absil","orcid":null},"institutions":[{"id":"https://openalex.org/I95674353","display_name":"UCLouvain","ror":"https://ror.org/02495e989","country_code":"BE","type":"education","lineage":["https://openalex.org/I95674353"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"P.-A. Absil","raw_affiliation_strings":["Department of Mathematical Engineering, ICTEAM Institute, Universit\u00e9 catholique de Louvain, 1348 Louvain-la-Neuve, Belgium"],"affiliations":[{"raw_affiliation_string":"Department of Mathematical Engineering, ICTEAM Institute, Universit\u00e9 catholique de Louvain, 1348 Louvain-la-Neuve, Belgium","institution_ids":["https://openalex.org/I95674353"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5068395433"],"corresponding_institution_ids":["https://openalex.org/I95674353"],"apc_list":null,"apc_paid":null,"fwci":2.2621,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":{"value":0.88134907,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"25","issue":"9","first_page":"2486","last_page":"2522"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","score":1.0,"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/T11447","display_name":"Blind Source Separation Techniques","score":1.0,"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9970999956130981,"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/T10640","display_name":"Spectroscopy and Chemometric Analyses","score":0.9941999912261963,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6012058258056641},{"id":"https://openalex.org/keywords/independent-component-analysis","display_name":"Independent component analysis","score":0.5765116810798645},{"id":"https://openalex.org/keywords/unit-sphere","display_name":"Unit sphere","score":0.5033883452415466},{"id":"https://openalex.org/keywords/range","display_name":"Range (aeronautics)","score":0.5010192394256592},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4747752845287323},{"id":"https://openalex.org/keywords/lipschitz-continuity","display_name":"Lipschitz continuity","score":0.44815126061439514},{"id":"https://openalex.org/keywords/orthogonality","display_name":"Orthogonality","score":0.4413035809993744},{"id":"https://openalex.org/keywords/norm","display_name":"Norm (philosophy)","score":0.433086097240448},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4219367504119873},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.34892067313194275},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2934671640396118},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.10554155707359314}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6012058258056641},{"id":"https://openalex.org/C51432778","wikidata":"https://www.wikidata.org/wiki/Q1259145","display_name":"Independent component analysis","level":2,"score":0.5765116810798645},{"id":"https://openalex.org/C191948623","wikidata":"https://www.wikidata.org/wiki/Q1307800","display_name":"Unit sphere","level":2,"score":0.5033883452415466},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.5010192394256592},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4747752845287323},{"id":"https://openalex.org/C22324862","wikidata":"https://www.wikidata.org/wiki/Q652707","display_name":"Lipschitz continuity","level":2,"score":0.44815126061439514},{"id":"https://openalex.org/C17137986","wikidata":"https://www.wikidata.org/wiki/Q215067","display_name":"Orthogonality","level":2,"score":0.4413035809993744},{"id":"https://openalex.org/C191795146","wikidata":"https://www.wikidata.org/wiki/Q3878446","display_name":"Norm (philosophy)","level":2,"score":0.433086097240448},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4219367504119873},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.34892067313194275},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2934671640396118},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.10554155707359314},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1162/neco_a_00485","is_oa":false,"landing_page_url":"https://doi.org/10.1162/neco_a_00485","pdf_url":null,"source":{"id":"https://openalex.org/S207023548","display_name":"Neural Computation","issn_l":"0899-7667","issn":["0899-7667","1530-888X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315718","host_organization_name":"The MIT Press","host_organization_lineage":["https://openalex.org/P4310315718"],"host_organization_lineage_names":["The MIT Press"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Neural Computation","raw_type":"journal-article"},{"id":"pmid:23777522","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/23777522","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Neural computation","raw_type":null},{"id":"pmh:oai:dial.uclouvain.be:boreal:125701","is_oa":false,"landing_page_url":"http://hdl.handle.net/2078.1/125701","pdf_url":null,"source":{"id":"https://openalex.org/S4306401902","display_name":"Digital Access to Libraries (Universit\u00e9 catholique de Louvain (UCL), l'Universit\u00e9 de Namur (UNamur) and the Universit\u00e9 Saint-Louis (USL-B))","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I95674353","host_organization_name":"UCLouvain","host_organization_lineage":["https://openalex.org/I95674353"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Neural Computation, Vol. 25, no. 9, p. 2486-2522 (2013)","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W572451314","https://openalex.org/W1493249195","https://openalex.org/W1517767549","https://openalex.org/W1548802052","https://openalex.org/W1641206880","https://openalex.org/W1659912667","https://openalex.org/W1701323864","https://openalex.org/W1748171189","https://openalex.org/W1768275649","https://openalex.org/W1804110266","https://openalex.org/W1964176378","https://openalex.org/W1976137296","https://openalex.org/W1981276685","https://openalex.org/W1989581163","https://openalex.org/W1998855065","https://openalex.org/W2014337138","https://openalex.org/W2015361919","https://openalex.org/W2052176530","https://openalex.org/W2054875385","https://openalex.org/W2066830230","https://openalex.org/W2096789154","https://openalex.org/W2098024031","https://openalex.org/W2111124449","https://openalex.org/W2112500252","https://openalex.org/W2114493976","https://openalex.org/W2121782097","https://openalex.org/W2121927366","https://openalex.org/W2124757684","https://openalex.org/W2136284422","https://openalex.org/W2139896607","https://openalex.org/W2141224535","https://openalex.org/W2147614211","https://openalex.org/W2151034540","https://openalex.org/W2157765880","https://openalex.org/W2158218920","https://openalex.org/W2161060033","https://openalex.org/W2162378639","https://openalex.org/W2168055777","https://openalex.org/W2541122851","https://openalex.org/W2986045313","https://openalex.org/W4205293427","https://openalex.org/W4205778870"],"related_works":["https://openalex.org/W4252230435","https://openalex.org/W2121429698","https://openalex.org/W2182042810","https://openalex.org/W2059318893","https://openalex.org/W2095582735","https://openalex.org/W55679925","https://openalex.org/W1965698851","https://openalex.org/W3080404860","https://openalex.org/W1788750812","https://openalex.org/W188518547"],"abstract_inverted_index":{"It":[0],"is":[1,80,86,105,192],"seemingly":[2],"paradoxical":[3],"to":[4,34,129,132,143,173],"the":[5,9,17,52,63,68,72,78,106,110,126,138,144,158,166,181,186,189],"classical":[6],"definition":[7],"of":[8,56,67,74,89,112,120,137,162,165,185],"independent":[10],"component":[11],"analysis":[12,161],"(ICA),":[13],"that":[14,94],"in":[15,27,188],"reality,":[16],"true":[18],"sources":[19,37],"are":[20],"often":[21],"not":[22,81],"strictly":[23],"uncorrelated.":[24],"With":[25],"this":[26,29],"mind,":[28],"letter":[30],"concerns":[31],"a":[32,43,87,98,113,118,133],"framework":[33],"extract":[35],"quasi-uncorrelated":[36],"with":[38,125,194],"finite":[39],"supports":[40],"by":[41],"optimizing":[42],"range-based":[44,69],"contrast":[45,65,102,139],"function":[46,70,79,140],"under":[47],"unit-norm":[48,123,146],"constraints":[49,147],"(to":[50],"handle":[51,96,174],"inherent":[53],"scaling":[54],"indeterminacy":[55],"ICA)":[57],"but":[58],"without":[59],"orthogonality":[60],"constraints.":[61],"Albeit":[62],"appealing":[64],"properties":[66],"(e.g.,":[71],"absence":[73],"mixing":[75],"local":[76],"optima),":[77],"differentiable":[82],"everywhere.":[83],"Unfortunately,":[84],"there":[85],"dearth":[88],"literature":[90],"on":[91,117,157,180],"derivative-free":[92],"optimizers":[93],"effectively":[95],"such":[97],"nonsmooth":[99,114,152],"yet":[100],"promising":[101],"function.":[103],"This":[104],"compelling":[107],"reason":[108],"for":[109],"design":[111,159],"optimization":[115,153],"algorithm":[116,154,187],"manifold":[119],"matrices":[121],"having":[122],"columns":[124],"following":[127],"objectives:":[128],"ascertain":[130],"convergence":[131],"Clarke":[134],"stationary":[135],"point":[136],"and":[141,160,200],"adhere":[142],"necessary":[145],"more":[148],"naturally.":[149],"The":[150,183],"proposed":[151],"crucially":[155],"relies":[156],"an":[163],"extension":[164],"mesh":[167],"adaptive":[168],"direct":[169],"search":[170],"(MADS)":[171],"method":[172],"locally":[175],"Lipschitz":[176],"objective":[177],"functions":[178],"defined":[179],"sphere.":[182],"applicability":[184],"ICA":[190],"domain":[191],"demonstrated":[193],"simulations":[195],"involving":[196],"natural,":[197],"face,":[198],"aerial,":[199],"texture":[201],"images.":[202]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2}],"updated_date":"2026-03-20T23:20:44.827607","created_date":"2025-10-10T00:00:00"}