{"id":"https://openalex.org/W2016051263","doi":"https://doi.org/10.1109/tc.1973.5009179","title":"Pattern Recognition by Piecewise Linear Discriminant Functions","display_name":"Pattern Recognition by Piecewise Linear Discriminant Functions","publication_year":1973,"publication_date":"1973-09-01","ids":{"openalex":"https://openalex.org/W2016051263","doi":"https://doi.org/10.1109/tc.1973.5009179","mag":"2016051263"},"language":"en","primary_location":{"id":"doi:10.1109/tc.1973.5009179","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tc.1973.5009179","pdf_url":null,"source":{"id":"https://openalex.org/S157670870","display_name":"IEEE Transactions on Computers","issn_l":"0018-9340","issn":["0018-9340","0016-9340","1557-9956","2326-3814"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computers","raw_type":"journal-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/A5100883353","display_name":"Chin-Liang Chang","orcid":null},"institutions":[{"id":"https://openalex.org/I1299022934","display_name":"United States Department of Health and Human Services","ror":"https://ror.org/033jnv181","country_code":"US","type":"government","lineage":["https://openalex.org/I1299022934"]},{"id":"https://openalex.org/I1299303238","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88","country_code":"US","type":"government","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238"]},{"id":"https://openalex.org/I4210155647","display_name":"National Institutes of Health Clinical Center","ror":"https://ror.org/04vfsmv21","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I4210155647"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Chin-Liang Chang","raw_affiliation_strings":["Heuristics Laboratory, Division of Computer Research and Technology, National Institutes of Health DHHS, Bethesda, MD, USA","Heuristics Laboratory, Division of Computer Research and Technology, National Institutes of Health, Bethesda, Md. 20014"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Heuristics Laboratory, Division of Computer Research and Technology, National Institutes of Health DHHS, Bethesda, MD, USA","institution_ids":["https://openalex.org/I1299022934","https://openalex.org/I1299303238"]},{"raw_affiliation_string":"Heuristics Laboratory, Division of Computer Research and Technology, National Institutes of Health, Bethesda, Md. 20014","institution_ids":["https://openalex.org/I1299303238","https://openalex.org/I4210155647"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5100883353"],"corresponding_institution_ids":["https://openalex.org/I1299022934","https://openalex.org/I1299303238","https://openalex.org/I4210155647"],"apc_list":null,"apc_paid":null,"fwci":6.1847,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.96556205,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"C-22","issue":"9","first_page":"859","last_page":"862"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10057","display_name":"Face and Expression Recognition","score":0.9894000291824341,"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":0.9894000291824341,"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/T10320","display_name":"Neural Networks and Applications","score":0.9847999811172485,"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"}},{"id":"https://openalex.org/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9690999984741211,"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/linear-discriminant-analysis","display_name":"Linear discriminant analysis","score":0.676559567451477},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6306213736534119},{"id":"https://openalex.org/keywords/piecewise-linear-function","display_name":"Piecewise linear function","score":0.5557540655136108},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4894496500492096},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.46791794896125793},{"id":"https://openalex.org/keywords/discriminant","display_name":"Discriminant","score":0.43872296810150146},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.42870303988456726},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32318753004074097},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3209794759750366},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.10224437713623047}],"concepts":[{"id":"https://openalex.org/C69738355","wikidata":"https://www.wikidata.org/wiki/Q1228929","display_name":"Linear discriminant analysis","level":2,"score":0.676559567451477},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6306213736534119},{"id":"https://openalex.org/C17095337","wikidata":"https://www.wikidata.org/wiki/Q2375229","display_name":"Piecewise linear function","level":2,"score":0.5557540655136108},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4894496500492096},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46791794896125793},{"id":"https://openalex.org/C78397625","wikidata":"https://www.wikidata.org/wiki/Q192487","display_name":"Discriminant","level":2,"score":0.43872296810150146},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.42870303988456726},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32318753004074097},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3209794759750366},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.10224437713623047}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tc.1973.5009179","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tc.1973.5009179","pdf_url":null,"source":{"id":"https://openalex.org/S157670870","display_name":"IEEE Transactions on Computers","issn_l":"0018-9340","issn":["0018-9340","0016-9340","1557-9956","2326-3814"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computers","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities","score":0.7300000190734863}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1554104828","https://openalex.org/W1988484858","https://openalex.org/W1991431300","https://openalex.org/W2013569590","https://openalex.org/W2041273609","https://openalex.org/W2064361366","https://openalex.org/W2071517077","https://openalex.org/W2073127487","https://openalex.org/W2129446430","https://openalex.org/W2143249365","https://openalex.org/W2148245374","https://openalex.org/W2164962944"],"related_works":["https://openalex.org/W2350751952","https://openalex.org/W1999647744","https://openalex.org/W2362114017","https://openalex.org/W3147024994","https://openalex.org/W2063246903","https://openalex.org/W2374055396","https://openalex.org/W1978302214","https://openalex.org/W2021817983","https://openalex.org/W2156856390","https://openalex.org/W3008559849"],"abstract_inverted_index":{"A":[0,23],"piecewise":[1,27,51,75],"linear":[2,12,28,47,52,76],"function":[3,48],"is":[4,34,71],"represented":[5],"in":[6,49],"terms":[7],"of":[8,11,17],"a":[9,50,59],"set":[10],"functions":[13,30],"through":[14],"the":[15,18,40,65,69],"use":[16],"maximum":[19],"and":[20],"minimum":[21],"functions.":[22,78],"procedure":[24,37,55,70],"for":[25,31,73],"finding":[26],"discriminant":[29,77],"pattern":[32],"recognition":[33],"described.":[35],"The":[36,54],"iteratively":[38],"uses":[39],"accelerated":[41],"relaxation":[42],"method":[43],"to":[44],"find":[45],"every":[46],"function.":[53],"was":[56],"implemented":[57],"by":[58],"Fortran":[60],"program.":[61],"Experimental":[62],"results":[63],"with":[64],"program":[66],"showed":[67],"that":[68],"promising":[72],"obtaining":[74]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}
