{"id":"https://openalex.org/W2059381385","doi":"https://doi.org/10.1109/iccvw.2009.5457698","title":"Optimal feature selection for subspace image matching","display_name":"Optimal feature selection for subspace image matching","publication_year":2009,"publication_date":"2009-09-01","ids":{"openalex":"https://openalex.org/W2059381385","doi":"https://doi.org/10.1109/iccvw.2009.5457698","mag":"2059381385"},"language":"en","primary_location":{"id":"doi:10.1109/iccvw.2009.5457698","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iccvw.2009.5457698","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops","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/A5025034643","display_name":"Gemma Roig","orcid":"https://orcid.org/0000-0002-6439-8076"},"institutions":[{"id":"https://openalex.org/I5593406","display_name":"Universitat Ramon Llull","ror":"https://ror.org/04p9k2z50","country_code":"ES","type":"education","lineage":["https://openalex.org/I5593406"]},{"id":"https://openalex.org/I47652572","display_name":"La Salle University","ror":"https://ror.org/02beve479","country_code":"US","type":"education","lineage":["https://openalex.org/I47652572"]}],"countries":["ES","US"],"is_corresponding":true,"raw_author_name":"Gemma Roig","raw_affiliation_strings":["GTM-Grup de Recerca de Technologies Media La Salle, Universitat Ramon Llull, Barcelona, Spain","GTM-Grup de Recerca de Tecnologies Media, La Salle, Universitat Ramon Llull, c/Quatre Camins, 2, 08022, Barcelona, Spain"],"affiliations":[{"raw_affiliation_string":"GTM-Grup de Recerca de Technologies Media La Salle, Universitat Ramon Llull, Barcelona, Spain","institution_ids":["https://openalex.org/I5593406"]},{"raw_affiliation_string":"GTM-Grup de Recerca de Tecnologies Media, La Salle, Universitat Ramon Llull, c/Quatre Camins, 2, 08022, Barcelona, Spain","institution_ids":["https://openalex.org/I47652572"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020830959","display_name":"Xavier Boix","orcid":"https://orcid.org/0000-0003-4656-3485"},"institutions":[{"id":"https://openalex.org/I4387153096","display_name":"Computer Vision Center","ror":"https://ror.org/00s0nnj93","country_code":null,"type":"other","lineage":["https://openalex.org/I4387153040","https://openalex.org/I4387153096"]},{"id":"https://openalex.org/I2799803557","display_name":"Barcelona Supercomputing Center","ror":"https://ror.org/05sd8tv96","country_code":"ES","type":"facility","lineage":["https://openalex.org/I2799803557","https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Xavier Boix","raw_affiliation_strings":["Computer Vision Center, Barcelona, Spain","Computer Vision Center, Edifici O, Campus UAB, 08193 Bellaterra, Barcelona, Spain"],"affiliations":[{"raw_affiliation_string":"Computer Vision Center, Barcelona, Spain","institution_ids":["https://openalex.org/I2799803557","https://openalex.org/I4387153096"]},{"raw_affiliation_string":"Computer Vision Center, Edifici O, Campus UAB, 08193 Bellaterra, Barcelona, Spain","institution_ids":["https://openalex.org/I4387153096"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5108127869","display_name":"Fernando De la Torre","orcid":null},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Fernando De la Torre","raw_affiliation_strings":["Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA","Robotics Institute, Carnegie Mellon Univ. Pittsburgh Pennsylvania, 15213 USA"],"affiliations":[{"raw_affiliation_string":"Robotics Institute, Carnegie Mellon University, Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Robotics Institute, Carnegie Mellon Univ. Pittsburgh Pennsylvania, 15213 USA","institution_ids":["https://openalex.org/I74973139"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5025034643"],"corresponding_institution_ids":["https://openalex.org/I47652572","https://openalex.org/I5593406"],"apc_list":null,"apc_paid":null,"fwci":0.9842,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.7767254,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"200","last_page":"205"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10057","display_name":"Face and Expression Recognition","score":0.9966999888420105,"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":0.9966999888420105,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9957000017166138,"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/T11448","display_name":"Face recognition and analysis","score":0.9824000000953674,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/quadratic-programming","display_name":"Quadratic programming","score":0.62396240234375},{"id":"https://openalex.org/keywords/subspace-topology","display_name":"Subspace topology","score":0.6057029366493225},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5792869925498962},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5065323114395142},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.49022918939590454},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.4615741968154907},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.45284122228622437},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.4509808123111725},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.4416937232017517},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.433354914188385},{"id":"https://openalex.org/keywords/greedy-algorithm","display_name":"Greedy algorithm","score":0.42707139253616333},{"id":"https://openalex.org/keywords/matching-pursuit","display_name":"Matching pursuit","score":0.4191962778568268},{"id":"https://openalex.org/keywords/feature-selection","display_name":"Feature selection","score":0.4122604727745056},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.35116851329803467},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3008840084075928},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.2378884255886078},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.09393534064292908}],"concepts":[{"id":"https://openalex.org/C81845259","wikidata":"https://www.wikidata.org/wiki/Q290117","display_name":"Quadratic programming","level":2,"score":0.62396240234375},{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.6057029366493225},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5792869925498962},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5065323114395142},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.49022918939590454},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.4615741968154907},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.45284122228622437},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.4509808123111725},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.4416937232017517},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.433354914188385},{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.42707139253616333},{"id":"https://openalex.org/C156872377","wikidata":"https://www.wikidata.org/wiki/Q6786281","display_name":"Matching pursuit","level":3,"score":0.4191962778568268},{"id":"https://openalex.org/C148483581","wikidata":"https://www.wikidata.org/wiki/Q446488","display_name":"Feature selection","level":2,"score":0.4122604727745056},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.35116851329803467},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3008840084075928},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.2378884255886078},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.09393534064292908},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","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/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/iccvw.2009.5457698","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iccvw.2009.5457698","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.207.7590","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.207.7590","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.cs.cmu.edu/%7Eftorre/fss.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8700000047683716}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W190437827","https://openalex.org/W1555017801","https://openalex.org/W1744214816","https://openalex.org/W1998607366","https://openalex.org/W2002875082","https://openalex.org/W2014425592","https://openalex.org/W2049981393","https://openalex.org/W2077658674","https://openalex.org/W2090230045","https://openalex.org/W2106308174","https://openalex.org/W2108444897","https://openalex.org/W2111308925","https://openalex.org/W2133956794","https://openalex.org/W2142323399","https://openalex.org/W2145431600","https://openalex.org/W2148694408","https://openalex.org/W2151103935","https://openalex.org/W2152826766","https://openalex.org/W2164598857","https://openalex.org/W2166820607","https://openalex.org/W2168466186","https://openalex.org/W2177274842","https://openalex.org/W2295106276","https://openalex.org/W3012317737","https://openalex.org/W4212997115","https://openalex.org/W4236026600","https://openalex.org/W4292023222","https://openalex.org/W6607693206","https://openalex.org/W6637760914","https://openalex.org/W6672945291","https://openalex.org/W6676079856"],"related_works":["https://openalex.org/W1974198688","https://openalex.org/W2134343866","https://openalex.org/W1973211400","https://openalex.org/W3215967011","https://openalex.org/W1815093352","https://openalex.org/W2114913122","https://openalex.org/W2138498353","https://openalex.org/W2119375127","https://openalex.org/W4298139472","https://openalex.org/W1574575852"],"abstract_inverted_index":{"Image":[0],"matching":[1,20,51],"has":[2],"been":[3],"a":[4,29,36,43,79,100,108],"central":[5],"research":[6],"topic":[7],"in":[8,74],"computer":[9],"vision":[10],"over":[11,60],"the":[12,50,68,96,122],"last":[13],"decades.":[14],"Typical":[15],"approaches":[16],"to":[17],"correspondence":[18],"involve":[19],"features":[21,41],"between":[22,35],"images.":[23],"In":[24],"this":[25],"paper,":[26],"we":[27,94],"present":[28],"novel":[30],"problem":[31,72],"for":[32,130],"establishing":[33],"correspondences":[34],"sparse":[37,101],"set":[38],"of":[39,67],"image":[40],"and":[42,57,65,83,90,104],"previously":[44],"learned":[45],"subspace":[46,69],"model.":[47,70],"We":[48,77],"formulate":[49],"task":[52],"as":[53,99],"an":[54],"energy":[55],"minimization,":[56],"jointly":[58],"optimize":[59],"all":[61],"possible":[62],"feature":[63,118],"assignments":[64],"parameters":[66],"This":[71],"is":[73],"general":[75],"NP-hard.":[76],"propose":[78],"convex":[80],"relaxation":[81],"approximation,":[82],"develop":[84],"two":[85],"optimization":[86,97],"strategies:":[87],"naive":[88],"gradient-descent":[89],"quadratic":[91,123],"programming.":[92],"Alternatively,":[93],"reformulate":[95],"criterion":[98],"eigenvalue":[102],"problem,":[103],"solve":[105],"it":[106],"using":[107],"recently":[109],"proposed":[110],"backward":[111],"greedy":[112],"algorithm.":[113],"Experimental":[114],"results":[115],"on":[116],"facial":[117],"detection":[119],"show":[120],"that":[121],"programming":[124],"solution":[125],"provides":[126],"better":[127],"selection":[128],"mechanism":[129],"relevant":[131],"features.":[132]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}