{"id":"https://openalex.org/W2975003464","doi":"https://doi.org/10.1109/access.2019.2944001","title":"A Review, Current Challenges, and Future Possibilities on Emotion Recognition Using Machine Learning and Physiological Signals","display_name":"A Review, Current Challenges, and Future Possibilities on Emotion Recognition Using Machine Learning and Physiological Signals","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2975003464","doi":"https://doi.org/10.1109/access.2019.2944001","mag":"2975003464"},"language":"en","primary_location":{"id":"doi:10.1109/access.2019.2944001","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2944001","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08849996.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08849996.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5007270370","display_name":"Patr\u00edcia Bota","orcid":"https://orcid.org/0000-0002-0514-7517"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Patricia J. Bota","raw_affiliation_strings":["Instituto Superior T\u00e9cnico, Instituto de Telecomunica\u00e7\u00f5es, Lisbon, Portugal"],"raw_orcid":"https://orcid.org/0000-0002-0514-7517","affiliations":[{"raw_affiliation_string":"Instituto Superior T\u00e9cnico, Instituto de Telecomunica\u00e7\u00f5es, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210120471"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100337510","display_name":"Chen Wang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chen Wang","raw_affiliation_strings":["Xinhuanet, Future Media & Convergence Institute (FMCI), Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Xinhuanet, Future Media & Convergence Institute (FMCI), Beijing, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029045681","display_name":"Ana Fred","orcid":"https://orcid.org/0000-0003-1320-5024"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Ana L. N. Fred","raw_affiliation_strings":["Instituto Superior T\u00e9cnico, Instituto de Telecomunica\u00e7\u00f5es, Lisbon, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto Superior T\u00e9cnico, Instituto de Telecomunica\u00e7\u00f5es, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210120471"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084063480","display_name":"Hugo Silva","orcid":"https://orcid.org/0000-0001-6764-8432"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Hugo Placido Da Silva","raw_affiliation_strings":["Instituto Superior T\u00e9cnico, Instituto de Telecomunica\u00e7\u00f5es, Lisbon, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto Superior T\u00e9cnico, Instituto de Telecomunica\u00e7\u00f5es, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210120471"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5007270370"],"corresponding_institution_ids":["https://openalex.org/I4210120471"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":17.8873,"has_fulltext":false,"cited_by_count":312,"citation_normalized_percentile":{"value":0.99506347,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"7","issue":null,"first_page":"140990","last_page":"141020"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10667","display_name":"Emotion and Mood Recognition","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10667","display_name":"Emotion and Mood Recognition","score":0.9998999834060669,"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/T10429","display_name":"EEG and Brain-Computer Interfaces","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/2805","display_name":"Cognitive Neuroscience"},"field":{"id":"https://openalex.org/fields/28","display_name":"Neuroscience"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12496","display_name":"Color perception and design","score":0.9815000295639038,"subfield":{"id":"https://openalex.org/subfields/3207","display_name":"Social Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7098341584205627},{"id":"https://openalex.org/keywords/field","display_name":"Field (mathematics)","score":0.6340709924697876},{"id":"https://openalex.org/keywords/affective-computing","display_name":"Affective computing","score":0.633895754814148},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.5754659175872803},{"id":"https://openalex.org/keywords/multidisciplinary-approach","display_name":"Multidisciplinary approach","score":0.5677919387817383},{"id":"https://openalex.org/keywords/emotion-recognition","display_name":"Emotion recognition","score":0.528672456741333},{"id":"https://openalex.org/keywords/cognitive-computing","display_name":"Cognitive computing","score":0.4707924425601959},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4406869113445282},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.42136114835739136},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.41333329677581787},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.3957449793815613},{"id":"https://openalex.org/keywords/cognition","display_name":"Cognition","score":0.3539271950721741},{"id":"https://openalex.org/keywords/cognitive-science","display_name":"Cognitive science","score":0.3485860228538513},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.1557081937789917},{"id":"https://openalex.org/keywords/social-science","display_name":"Social science","score":0.07952722907066345}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7098341584205627},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.6340709924697876},{"id":"https://openalex.org/C6438553","wikidata":"https://www.wikidata.org/wiki/Q1185804","display_name":"Affective computing","level":2,"score":0.633895754814148},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.5754659175872803},{"id":"https://openalex.org/C22467394","wikidata":"https://www.wikidata.org/wiki/Q849359","display_name":"Multidisciplinary approach","level":2,"score":0.5677919387817383},{"id":"https://openalex.org/C2777438025","wikidata":"https://www.wikidata.org/wiki/Q1339090","display_name":"Emotion recognition","level":2,"score":0.528672456741333},{"id":"https://openalex.org/C92298750","wikidata":"https://www.wikidata.org/wiki/Q17008161","display_name":"Cognitive computing","level":3,"score":0.4707924425601959},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4406869113445282},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.42136114835739136},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.41333329677581787},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.3957449793815613},{"id":"https://openalex.org/C169900460","wikidata":"https://www.wikidata.org/wiki/Q2200417","display_name":"Cognition","level":2,"score":0.3539271950721741},{"id":"https://openalex.org/C188147891","wikidata":"https://www.wikidata.org/wiki/Q147638","display_name":"Cognitive science","level":1,"score":0.3485860228538513},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.1557081937789917},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.07952722907066345},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"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/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C169760540","wikidata":"https://www.wikidata.org/wiki/Q207011","display_name":"Neuroscience","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2019.2944001","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2944001","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08849996.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:35ff389344814b48888c881ab7e2ac93","is_oa":true,"landing_page_url":"https://doaj.org/article/35ff389344814b48888c881ab7e2ac93","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"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":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 7, Pp 140990-141020 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2019.2944001","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2944001","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08849996.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8597525192","display_name":null,"funder_award_id":"TIN2017-85409-P","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"}],"funders":[{"id":"https://openalex.org/F4320335322","display_name":"European Regional Development Fund","ror":"https://ror.org/00k4n6c32"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2975003464.pdf","grobid_xml":"https://content.openalex.org/works/W2975003464.grobid-xml"},"referenced_works_count":223,"referenced_works":["https://openalex.org/W2985946","https://openalex.org/W22807367","https://openalex.org/W560265342","https://openalex.org/W784166158","https://openalex.org/W1486958688","https://openalex.org/W1518433044","https://openalex.org/W1543168978","https://openalex.org/W1555767263","https://openalex.org/W1569173481","https://openalex.org/W1575201818","https://openalex.org/W1576634929","https://openalex.org/W1581387623","https://openalex.org/W1636050108","https://openalex.org/W1842328245","https://openalex.org/W1873332500","https://openalex.org/W1946550961","https://openalex.org/W1950412479","https://openalex.org/W1963753144","https://openalex.org/W1965832795","https://openalex.org/W1966797434","https://openalex.org/W1972200139","https://openalex.org/W1974894717","https://openalex.org/W1979482868","https://openalex.org/W1981918735","https://openalex.org/W1985541164","https://openalex.org/W1994405094","https://openalex.org/W1996299251","https://openalex.org/W2002055708","https://openalex.org/W2003856922","https://openalex.org/W2004104731","https://openalex.org/W2008264338","https://openalex.org/W2011239579","https://openalex.org/W2011722134","https://openalex.org/W2015278509","https://openalex.org/W2020541511","https://openalex.org/W2027304756","https://openalex.org/W2029334490","https://openalex.org/W2032512569","https://openalex.org/W2036309320","https://openalex.org/W2037121244","https://openalex.org/W2037755177","https://openalex.org/W2040963510","https://openalex.org/W2043037790","https://openalex.org/W2044170013","https://openalex.org/W2050284630","https://openalex.org/W2052431898","https://openalex.org/W2064149108","https://openalex.org/W2066075340","https://openalex.org/W2067147147","https://openalex.org/W2069911788","https://openalex.org/W2075613271","https://openalex.org/W2077697924","https://openalex.org/W2078671978","https://openalex.org/W2080773860","https://openalex.org/W2080898270","https://openalex.org/W2086060900","https://openalex.org/W2089721029","https://openalex.org/W2095547099","https://openalex.org/W2098476033","https://openalex.org/W2098816250","https://openalex.org/W2101972387","https://openalex.org/W2103184652","https://openalex.org/W2104084893","https://openalex.org/W2105036571","https://openalex.org/W2107503934","https://openalex.org/W2111282225","https://openalex.org/W2112555538","https://openalex.org/W2112945682","https://openalex.org/W2114355183","https://openalex.org/W2116488983","https://openalex.org/W2120945046","https://openalex.org/W2122098299","https://openalex.org/W2122505361","https://openalex.org/W2126890968","https://openalex.org/W2129860303","https://openalex.org/W2130262864","https://openalex.org/W2131274108","https://openalex.org/W2132322340","https://openalex.org/W2132889650","https://openalex.org/W2133589238","https://openalex.org/W2135578520","https://openalex.org/W2136039203","https://openalex.org/W2136504847","https://openalex.org/W2138492448","https://openalex.org/W2139596642","https://openalex.org/W2144756000","https://openalex.org/W2144961120","https://openalex.org/W2145710484","https://openalex.org/W2147490203","https://openalex.org/W2148606670","https://openalex.org/W2148905283","https://openalex.org/W2149203771","https://openalex.org/W2149875516","https://openalex.org/W2150170396","https://openalex.org/W2151076348","https://openalex.org/W2151487996","https://openalex.org/W2152423878","https://openalex.org/W2153771043","https://openalex.org/W2154177241","https://openalex.org/W2156000847","https://openalex.org/W2156567116","https://openalex.org/W2160439670","https://openalex.org/W2160788840","https://openalex.org/W2162137602","https://openalex.org/W2162273778","https://openalex.org/W2164215987","https://openalex.org/W2164368909","https://openalex.org/W2167557160","https://openalex.org/W2170195027","https://openalex.org/W2171369299","https://openalex.org/W2171801645","https://openalex.org/W2173163709","https://openalex.org/W2181387890","https://openalex.org/W2184380209","https://openalex.org/W2198212055","https://openalex.org/W2232827647","https://openalex.org/W2275733078","https://openalex.org/W2288511835","https://openalex.org/W2289086632","https://openalex.org/W2290843208","https://openalex.org/W2338224285","https://openalex.org/W2339343773","https://openalex.org/W2368514363","https://openalex.org/W2370305143","https://openalex.org/W2397331935","https://openalex.org/W2400745442","https://openalex.org/W2401391822","https://openalex.org/W2421079906","https://openalex.org/W2469534498","https://openalex.org/W2474069961","https://openalex.org/W2518578658","https://openalex.org/W2520956626","https://openalex.org/W2523577021","https://openalex.org/W2524595774","https://openalex.org/W2533298663","https://openalex.org/W2547146855","https://openalex.org/W2552972371","https://openalex.org/W2562037482","https://openalex.org/W2563401810","https://openalex.org/W2563752936","https://openalex.org/W2565994948","https://openalex.org/W2566902710","https://openalex.org/W2572280252","https://openalex.org/W2572741602","https://openalex.org/W2577343412","https://openalex.org/W2586084785","https://openalex.org/W2587586092","https://openalex.org/W2604538492","https://openalex.org/W2605367287","https://openalex.org/W2605376995","https://openalex.org/W2709158338","https://openalex.org/W2731964405","https://openalex.org/W2742338588","https://openalex.org/W2765383197","https://openalex.org/W2765856398","https://openalex.org/W2766825571","https://openalex.org/W2767290858","https://openalex.org/W2767879018","https://openalex.org/W2770913396","https://openalex.org/W2774170005","https://openalex.org/W2774203932","https://openalex.org/W2777240772","https://openalex.org/W2777277312","https://openalex.org/W2778812440","https://openalex.org/W2782746672","https://openalex.org/W2789476480","https://openalex.org/W2790404832","https://openalex.org/W2796902623","https://openalex.org/W2802176285","https://openalex.org/W2808081143","https://openalex.org/W2808450510","https://openalex.org/W2808649502","https://openalex.org/W2810418809","https://openalex.org/W2814508204","https://openalex.org/W2867696556","https://openalex.org/W2880583584","https://openalex.org/W2888582661","https://openalex.org/W2892341857","https://openalex.org/W2892766929","https://openalex.org/W2894771803","https://openalex.org/W2896297654","https://openalex.org/W2897936529","https://openalex.org/W2900877948","https://openalex.org/W2901027086","https://openalex.org/W2901098881","https://openalex.org/W2903135594","https://openalex.org/W2904463929","https://openalex.org/W2910252496","https://openalex.org/W2911681169","https://openalex.org/W2962905870","https://openalex.org/W2974550657","https://openalex.org/W4230277160","https://openalex.org/W4233009307","https://openalex.org/W4255142842","https://openalex.org/W4285719527","https://openalex.org/W4289282262","https://openalex.org/W4292994367","https://openalex.org/W4297468970","https://openalex.org/W4302904343","https://openalex.org/W6600125924","https://openalex.org/W6603342329","https://openalex.org/W6603931332","https://openalex.org/W6615516457","https://openalex.org/W6639175750","https://openalex.org/W6640567031","https://openalex.org/W6679234729","https://openalex.org/W6680140577","https://openalex.org/W6681935652","https://openalex.org/W6682209933","https://openalex.org/W6682488993","https://openalex.org/W6687510999","https://openalex.org/W6694892222","https://openalex.org/W6712160183","https://openalex.org/W6731776189","https://openalex.org/W6733266089","https://openalex.org/W6735963690","https://openalex.org/W6736354510","https://openalex.org/W6745769539","https://openalex.org/W6755993058","https://openalex.org/W6758972637","https://openalex.org/W6768225298","https://openalex.org/W6781033888","https://openalex.org/W7020981078"],"related_works":["https://openalex.org/W4205759580","https://openalex.org/W3080495370","https://openalex.org/W6602404","https://openalex.org/W2389858935","https://openalex.org/W2610459185","https://openalex.org/W3102913339","https://openalex.org/W4285597148","https://openalex.org/W2901531394","https://openalex.org/W2083738729","https://openalex.org/W2739837135"],"abstract_inverted_index":{"The":[0],"seminal":[1],"work":[2],"on":[3,73],"Affective":[4,23],"Computing":[5],"in":[6,139,150],"1995":[7],"by":[8],"Picard":[9],"set":[10],"the":[11,32,58,68,74,88,94,102,109,114,117,123,130,142,151],"base":[12],"for":[13,141],"computing":[14,24,92],"that":[15,111,136],"relates":[16],"to,":[17],"arises":[18],"from,":[19],"or":[20],"influences":[21],"emotions.":[22],"is":[25],"a":[26],"multidisciplinary":[27],"field":[28,59,89],"of":[29,34,67,70,90,96,105,116,144,153],"research":[30],"spanning":[31],"areas":[33],"computer":[35],"science,":[36],"psychology,":[37],"and":[38,53,119,127,133],"cognitive":[39],"science.":[40],"Potential":[41],"applications":[42],"include":[43],"automated":[44],"driver":[45],"assistance,":[46],"healthcare,":[47],"human-computer":[48],"interaction,":[49],"entertainment,":[50],"marketing,":[51],"teaching":[52],"many":[54],"others.":[55],"Thus,":[56],"quickly,":[57],"acquired":[60],"high":[61],"interest,":[62],"with":[63],"an":[64,85],"enormous":[65],"growth":[66,115],"number":[69],"papers":[71],"published":[72],"topic":[75],"since":[76],"its":[77],"inception.":[78],"This":[79],"paper":[80],"aims":[81],"to":[82,87],"(1)":[83],"Present":[84],"introduction":[86],"affective":[91],"though":[93],"description":[95],"key":[97],"theoretical":[98],"concepts;":[99],"(2)":[100],"Describe":[101],"current":[103],"state-of-the-art":[104],"emotion":[106,154],"recognition,":[107],"tracing":[108],"developments":[110],"helped":[112],"foster":[113],"field;":[118],"lastly,":[120],"(3)":[121],"point":[122],"literature":[124],"take-home":[125],"messages":[126],"conclusions,":[128],"evidencing":[129],"main":[131],"challenges":[132],"future":[134],"opportunities":[135],"lie":[137],"ahead,":[138],"particular":[140],"development":[143],"novel":[145],"machine":[146],"learning":[147],"(ML)":[148],"algorithms":[149],"context":[152],"recognition":[155],"using":[156],"physiological":[157],"signals.":[158]},"counts_by_year":[{"year":2026,"cited_by_count":9},{"year":2025,"cited_by_count":72},{"year":2024,"cited_by_count":77},{"year":2023,"cited_by_count":66},{"year":2022,"cited_by_count":40},{"year":2021,"cited_by_count":36},{"year":2020,"cited_by_count":12}],"updated_date":"2026-05-09T13:55:54.758798","created_date":"2025-10-10T00:00:00"}