{"id":"https://openalex.org/W2133677137","doi":"https://doi.org/10.1109/icassp.2010.5495208","title":"A union of incoherent spaces model for classification","display_name":"A union of incoherent spaces model for classification","publication_year":2010,"publication_date":"2010-01-01","ids":{"openalex":"https://openalex.org/W2133677137","doi":"https://doi.org/10.1109/icassp.2010.5495208","mag":"2133677137"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2010.5495208","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2010.5495208","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://infoscience.epfl.ch/record/143835","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5011615599","display_name":"Karin Schnass","orcid":"https://orcid.org/0000-0002-4873-5570"},"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":"K. Schnass","raw_affiliation_strings":["Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, Switzerland","Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]},{"raw_affiliation_string":"Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland#TAB#","institution_ids":["https://openalex.org/I5124864"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5028520858","display_name":"Pierre Vandergheynst","orcid":"https://orcid.org/0000-0002-9070-900X"},"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":"P. Vandergheynst","raw_affiliation_strings":["Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, Switzerland","Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology, Lausanne (EPFL), Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]},{"raw_affiliation_string":"Signal Processing Laboratory (LTS2), Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland#TAB#","institution_ids":["https://openalex.org/I5124864"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9687,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.78798406,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"5490","last_page":"5493"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10057","display_name":"Face and Expression Recognition","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10057","display_name":"Face and Expression Recognition","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9883000254631042,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.9878000020980835,"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/linear-subspace","display_name":"Linear subspace","score":0.8275487422943115},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6651737689971924},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.6361092329025269},{"id":"https://openalex.org/keywords/discriminant","display_name":"Discriminant","score":0.5763205289840698},{"id":"https://openalex.org/keywords/face","display_name":"Face (sociological concept)","score":0.5739536285400391},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5732862949371338},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5552307963371277},{"id":"https://openalex.org/keywords/linear-discriminant-analysis","display_name":"Linear discriminant analysis","score":0.5521383285522461},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.4953431189060211},{"id":"https://openalex.org/keywords/facial-recognition-system","display_name":"Facial recognition system","score":0.458530068397522},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.45768845081329346},{"id":"https://openalex.org/keywords/iterative-method","display_name":"Iterative method","score":0.4371485412120819},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.32604485750198364},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3070298433303833},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.28501832485198975}],"concepts":[{"id":"https://openalex.org/C12362212","wikidata":"https://www.wikidata.org/wiki/Q728435","display_name":"Linear subspace","level":2,"score":0.8275487422943115},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6651737689971924},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.6361092329025269},{"id":"https://openalex.org/C78397625","wikidata":"https://www.wikidata.org/wiki/Q192487","display_name":"Discriminant","level":2,"score":0.5763205289840698},{"id":"https://openalex.org/C2779304628","wikidata":"https://www.wikidata.org/wiki/Q3503480","display_name":"Face (sociological concept)","level":2,"score":0.5739536285400391},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5732862949371338},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5552307963371277},{"id":"https://openalex.org/C69738355","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Linear discriminant analysis","level":2,"score":0.5521383285522461},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.4953431189060211},{"id":"https://openalex.org/C31510193","wikidata":"https://www.wikidata.org/wiki/Q1192553","display_name":"Facial recognition system","level":3,"score":0.458530068397522},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.45768845081329346},{"id":"https://openalex.org/C159694833","wikidata":"https://www.wikidata.org/wiki/Q2321565","display_name":"Iterative method","level":2,"score":0.4371485412120819},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.32604485750198364},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3070298433303833},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.28501832485198975},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.1109/icassp.2010.5495208","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2010.5495208","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2010 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.193.8990","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.193.8990","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://infoscience.epfl.ch/record/143835/files/classif.pdf?version=1","raw_type":"text"},{"id":"pmh:oai:HAL:inria-00568895v1","is_oa":false,"landing_page_url":"https://inria.hal.science/inria-00568895","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on, Mar 2010, Dallas, United States. pp.5490 -5493, ⟨10.1109/ICASSP.2010.5495208⟩","raw_type":"Conference papers"},{"id":"pmh:oai:infoscience.epfl.ch:143835","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/143835","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"pmh:oai:infoscience.tind.io:143835","is_oa":true,"landing_page_url":"https://infoscience.epfl.ch/handle/20.500.14299/46085","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:infoscience.epfl.ch:143835","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/143835","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","score":0.75,"display_name":"Reduced inequalities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W283029246","https://openalex.org/W2065873741","https://openalex.org/W2082855665","https://openalex.org/W2113341759","https://openalex.org/W2117553576","https://openalex.org/W2123921160","https://openalex.org/W2125874614","https://openalex.org/W2129812935","https://openalex.org/W2132702454","https://openalex.org/W2138451337","https://openalex.org/W6610308907","https://openalex.org/W6677524102"],"related_works":["https://openalex.org/W2350751952","https://openalex.org/W2362114017","https://openalex.org/W1999647744","https://openalex.org/W3147024994","https://openalex.org/W1978302214","https://openalex.org/W2063246903","https://openalex.org/W2374055396","https://openalex.org/W2021817983","https://openalex.org/W1995039490","https://openalex.org/W3021047493"],"abstract_inverted_index":{"We":[0,18,60],"present":[1],"a":[2,12,32,51,62,79,87],"new":[3],"and":[4,81],"computationally":[5],"efficient":[6],"scheme":[7],"for":[8,76],"classifying":[9],"signals":[10,57],"into":[11],"fixed":[13],"number":[14],"of":[15,34,50],"known":[16],"classes.":[17],"model":[19],"classes":[20],"as":[21],"subspaces":[22,43],"in":[23],"which":[24,69],"the":[25,42,72],"corresponding":[26],"data":[27],"is":[28],"well":[29],"represented":[30],"by":[31],"dictionary":[33],"features.":[35],"In":[36],"order":[37],"to":[38,66],"ensure":[39],"low":[40],"misclassification,":[41],"should":[44],"be":[45],"incoherent":[46],"so":[47],"that":[48],"features":[49],"given":[52],"class":[53,80],"cannot":[54],"represent":[55],"efficiently":[56],"from":[58],"another.":[59],"propose":[61],"simple":[63],"iterative":[64],"strategy":[65],"learn":[67],"dictionaries":[68],"are":[70,71],"same":[73],"time":[74],"good":[75],"approximating":[77],"within":[78],"also":[82],"discriminant.":[83],"Preliminary":[84],"tests":[85],"on":[86],"standard":[88],"face":[89],"images":[90],"database":[91],"show":[92],"competitive":[93],"results.":[94]},"counts_by_year":[{"year":2014,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}