{"id":"https://openalex.org/W2137460650","doi":"https://doi.org/10.1109/icpr.2008.4761731","title":"An empirical comparison of graph-based dimensionality reduction algorithms on facial expression recognition tasks","display_name":"An empirical comparison of graph-based dimensionality reduction algorithms on facial expression recognition tasks","publication_year":2008,"publication_date":"2008-12-01","ids":{"openalex":"https://openalex.org/W2137460650","doi":"https://doi.org/10.1109/icpr.2008.4761731","mag":"2137460650"},"language":"en","primary_location":{"id":"doi:10.1109/icpr.2008.4761731","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icpr.2008.4761731","pdf_url":null,"source":{"id":"https://openalex.org/S4393916651","display_name":"Proceedings - International Conference on Pattern Recognition/Proceedings/International Conference on Pattern Recognition","issn_l":"1041-3278","issn":["1041-3278","1051-4651"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 19th International Conference on Pattern Recognition","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://oa.upm.es/4828/","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100719321","display_name":"Li He","orcid":"https://orcid.org/0000-0003-0261-4068"},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li He","raw_affiliation_strings":["Department of Computer Science, Fudan University, China","Department of Computer Science, Fudan University, Shanghai#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Fudan University, China","institution_ids":["https://openalex.org/I24943067"]},{"raw_affiliation_string":"Department of Computer Science, Fudan University, Shanghai#TAB#","institution_ids":["https://openalex.org/I24943067"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034180773","display_name":"Jos\u00e9 M. Buenaposada","orcid":"https://orcid.org/0000-0002-4308-9653"},"institutions":[{"id":"https://openalex.org/I182083151","display_name":"Universidad Rey Juan Carlos","ror":"https://ror.org/01v5cv687","country_code":"ES","type":"education","lineage":["https://openalex.org/I182083151"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Jose M. Buenaposada","raw_affiliation_strings":["Department Ciencias de la Computaci\u00f3n, Universidad Rey Juan Carlos","Dept. Cienc. de la Comput., Univ. Rey Juan Carlos"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department Ciencias de la Computaci\u00f3n, Universidad Rey Juan Carlos","institution_ids":["https://openalex.org/I182083151"]},{"raw_affiliation_string":"Dept. Cienc. de la Comput., Univ. Rey Juan Carlos","institution_ids":["https://openalex.org/I182083151"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014943420","display_name":"Luis Baumela","orcid":"https://orcid.org/0000-0001-6910-4359"},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I88060688","display_name":"Universidad Polit\u00e9cnica de Madrid","ror":"https://ror.org/03n6nwv02","country_code":"ES","type":"education","lineage":["https://openalex.org/I88060688"]}],"countries":["ES","US"],"is_corresponding":false,"raw_author_name":"Luis Baumela","raw_affiliation_strings":["Department Inteligencia Artificial, Universidad Polit\u00e9cnica de Madrid","Dep. Intel. Artificial, Univ. Politec. de Madrid, Madrid"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department Inteligencia Artificial, Universidad Polit\u00e9cnica de Madrid","institution_ids":["https://openalex.org/I88060688"]},{"raw_affiliation_string":"Dep. Intel. Artificial, Univ. Politec. de Madrid, Madrid","institution_ids":["https://openalex.org/I1343180700"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.19388129,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"2","issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10057","display_name":"Face and Expression Recognition","score":0.9995999932289124,"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":0.9995999932289124,"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/T10667","display_name":"Emotion and Mood Recognition","score":0.9937999844551086,"subfield":{"id":"https://openalex.org/subfields/3205","display_name":"Experimental and Cognitive Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13731","display_name":"Advanced Computing and Algorithms","score":0.9854000210762024,"subfield":{"id":"https://openalex.org/subfields/3322","display_name":"Urban Studies"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/dimensionality-reduction","display_name":"Dimensionality reduction","score":0.8774453401565552},{"id":"https://openalex.org/keywords/linear-discriminant-analysis","display_name":"Linear discriminant analysis","score":0.7545260190963745},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6309387683868408},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6033574938774109},{"id":"https://openalex.org/keywords/curse-of-dimensionality","display_name":"Curse of dimensionality","score":0.5795977115631104},{"id":"https://openalex.org/keywords/facial-expression","display_name":"Facial expression","score":0.5773462057113647},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.5370141267776489},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.525530993938446},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.493340402841568},{"id":"https://openalex.org/keywords/discriminant","display_name":"Discriminant","score":0.4674212634563446},{"id":"https://openalex.org/keywords/task","display_name":"Task (project management)","score":0.43458056449890137},{"id":"https://openalex.org/keywords/expression","display_name":"Expression (computer science)","score":0.4328259825706482},{"id":"https://openalex.org/keywords/facial-recognition-system","display_name":"Facial recognition system","score":0.432248055934906},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.42784371972084045},{"id":"https://openalex.org/keywords/dimensional-reduction","display_name":"Dimensional reduction","score":0.42247554659843445},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23000171780586243},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.17870435118675232}],"concepts":[{"id":"https://openalex.org/C70518039","wikidata":"https://www.wikidata.org/wiki/Q16000077","display_name":"Dimensionality reduction","level":2,"score":0.8774453401565552},{"id":"https://openalex.org/C69738355","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Linear discriminant analysis","level":2,"score":0.7545260190963745},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6309387683868408},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6033574938774109},{"id":"https://openalex.org/C111030470","wikidata":"https://www.wikidata.org/wiki/Q1430460","display_name":"Curse of dimensionality","level":2,"score":0.5795977115631104},{"id":"https://openalex.org/C195704467","wikidata":"https://www.wikidata.org/wiki/Q327968","display_name":"Facial expression","level":2,"score":0.5773462057113647},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.5370141267776489},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.525530993938446},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.493340402841568},{"id":"https://openalex.org/C78397625","wikidata":"https://www.wikidata.org/wiki/Q192487","display_name":"Discriminant","level":2,"score":0.4674212634563446},{"id":"https://openalex.org/C2780451532","wikidata":"https://www.wikidata.org/wiki/Q759676","display_name":"Task (project management)","level":2,"score":0.43458056449890137},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.4328259825706482},{"id":"https://openalex.org/C31510193","wikidata":"https://www.wikidata.org/wiki/Q1192553","display_name":"Facial recognition system","level":3,"score":0.432248055934906},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42784371972084045},{"id":"https://openalex.org/C2780091087","wikidata":"https://www.wikidata.org/wiki/Q3092131","display_name":"Dimensional reduction","level":2,"score":0.42247554659843445},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23000171780586243},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.17870435118675232},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C187736073","wikidata":"https://www.wikidata.org/wiki/Q2920921","display_name":"Management","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/icpr.2008.4761731","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icpr.2008.4761731","pdf_url":null,"source":{"id":"https://openalex.org/S4393916651","display_name":"Proceedings - International Conference on Pattern Recognition/Proceedings/International Conference on Pattern Recognition","issn_l":"1041-3278","issn":["1041-3278","1051-4651"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 19th International Conference on Pattern Recognition","raw_type":"proceedings-article"},{"id":"pmh:oai:oa.upm.es:4828","is_oa":true,"landing_page_url":"http://oa.upm.es/4828/","pdf_url":null,"source":{"id":"https://openalex.org/S4377196323","display_name":"UPM Digital Archive (Technical University of Madrid)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I88060688","host_organization_name":"Universidad Polit\u00e9cnica de Madrid","host_organization_lineage":["https://openalex.org/I88060688"],"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":"Proceedings of the 19th International Conference on Pattern Recognition, ICPR 2008 | 19th International Conference on Pattern Recognition, ICPR 2008 | 08/12/2008-11/12/2008 | Florida, EEUU","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":{"id":"pmh:oai:oa.upm.es:4828","is_oa":true,"landing_page_url":"http://oa.upm.es/4828/","pdf_url":null,"source":{"id":"https://openalex.org/S4377196323","display_name":"UPM Digital Archive (Technical University of Madrid)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I88060688","host_organization_name":"Universidad Polit\u00e9cnica de Madrid","host_organization_lineage":["https://openalex.org/I88060688"],"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":"Proceedings of the 19th International Conference on Pattern Recognition, ICPR 2008 | 19th International Conference on Pattern Recognition, ICPR 2008 | 08/12/2008-11/12/2008 | Florida, EEUU","raw_type":"info:eu-repo/semantics/conferenceObject"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities","score":0.5199999809265137}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1576613474","https://openalex.org/W1578099820","https://openalex.org/W1975595700","https://openalex.org/W2065926495","https://openalex.org/W2094760589","https://openalex.org/W2095869646","https://openalex.org/W2114217318","https://openalex.org/W2117553576","https://openalex.org/W2125127226","https://openalex.org/W2139916508","https://openalex.org/W2148438938","https://openalex.org/W2154872931","https://openalex.org/W2171022634","https://openalex.org/W2542554834","https://openalex.org/W2990736435","https://openalex.org/W3148981562","https://openalex.org/W6634500723","https://openalex.org/W6674281907"],"related_works":["https://openalex.org/W2350751952","https://openalex.org/W1999647744","https://openalex.org/W2362114017","https://openalex.org/W2114217318","https://openalex.org/W2794812819","https://openalex.org/W3147024994","https://openalex.org/W2587881214","https://openalex.org/W3104072235","https://openalex.org/W2063246903","https://openalex.org/W2374055396"],"abstract_inverted_index":{"Facial":[0],"expression":[1,17,50],"recognition":[2,18,51],"is":[3,65,86],"a":[4,38,48],"topic":[5],"of":[6],"interest":[7],"both":[8],"in":[9],"industry":[10],"and":[11,68],"academia.":[12],"Recent":[13],"approaches":[14],"to":[15,24,76,89],"facial":[16,49],"are":[19,74],"based":[20],"on":[21,47,82,95],"mapping":[22],"expressions":[23],"low":[25],"dimensional":[26],"manifolds.":[27],"In":[28],"this":[29,54],"paper":[30],"we":[31],"revisit":[32],"various":[33],"dimensionality":[34,44],"reduction":[35,45],"algorithms":[36,46],"using":[37],"graph-based":[39],"paradigm.":[40],"We":[41],"compare":[42],"eight":[43],"task.":[52],"For":[53],"task,":[55],"experimental":[56],"results":[57,73],"show":[58],"that":[59],"although":[60],"Linear":[61],"Discriminant":[62],"Analysis":[63],"(LDA)":[64],"the":[66,83],"simplest":[67],"oldest":[69],"supervised":[70],"approach,":[71],"its":[72],"comparable":[75],"more":[77],"flexible":[78],"recent":[79],"algorithms.":[80],"LDA,":[81],"other":[84],"hand,":[85],"much":[87],"simpler":[88],"tune,":[90],"since":[91],"it":[92],"only":[93],"depends":[94],"one":[96],"parameter.":[97]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}
