{"id":"https://openalex.org/W3217570271","doi":"https://doi.org/10.1109/access.2021.3131733","title":"A Survey of AI-Based Facial Emotion Recognition: Features, ML & DL Techniques, Age-Wise Datasets and Future Directions","display_name":"A Survey of AI-Based Facial Emotion Recognition: Features, ML & DL Techniques, Age-Wise Datasets and Future Directions","publication_year":2021,"publication_date":"2021-01-01","ids":{"openalex":"https://openalex.org/W3217570271","doi":"https://doi.org/10.1109/access.2021.3131733","mag":"3217570271"},"language":"en","primary_location":{"id":"doi:10.1109/access.2021.3131733","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3131733","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09631205.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/ielx7/6287639/6514899/09631205.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064463287","display_name":"Chirag Dalvi","orcid":null},"institutions":[{"id":"https://openalex.org/I244572783","display_name":"Symbiosis International University","ror":"https://ror.org/005r2ww51","country_code":"IN","type":"education","lineage":["https://openalex.org/I244572783"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Chirag Dalvi","raw_affiliation_strings":["Symbiosis Centre for Applied Artificial Intelligence (SCAAI), Symbiosis International University (Deemed University), Pune, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Symbiosis Centre for Applied Artificial Intelligence (SCAAI), Symbiosis International University (Deemed University), Pune, India","institution_ids":["https://openalex.org/I244572783"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030789364","display_name":"Manish Rathod","orcid":"https://orcid.org/0000-0003-4408-5651"},"institutions":[{"id":"https://openalex.org/I244572783","display_name":"Symbiosis International University","ror":"https://ror.org/005r2ww51","country_code":"IN","type":"education","lineage":["https://openalex.org/I244572783"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Manish Rathod","raw_affiliation_strings":["Symbiosis Centre for Applied Artificial Intelligence (SCAAI), Symbiosis International University (Deemed University), Pune, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Symbiosis Centre for Applied Artificial Intelligence (SCAAI), Symbiosis International University (Deemed University), Pune, India","institution_ids":["https://openalex.org/I244572783"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025236262","display_name":"Shruti Patil","orcid":"https://orcid.org/0000-0002-4903-1540"},"institutions":[{"id":"https://openalex.org/I244572783","display_name":"Symbiosis International University","ror":"https://ror.org/005r2ww51","country_code":"IN","type":"education","lineage":["https://openalex.org/I244572783"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Shruti Patil","raw_affiliation_strings":["Computer Science and Information Technology Department, Symbiosis Institute of Technology, Symbiosis International University (Deemed University), Pune, India"],"raw_orcid":"https://orcid.org/0000-0002-4903-1540","affiliations":[{"raw_affiliation_string":"Computer Science and Information Technology Department, Symbiosis Institute of Technology, Symbiosis International University (Deemed University), Pune, India","institution_ids":["https://openalex.org/I244572783"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084518207","display_name":"Shilpa Gite","orcid":"https://orcid.org/0000-0003-3882-7030"},"institutions":[{"id":"https://openalex.org/I244572783","display_name":"Symbiosis International University","ror":"https://ror.org/005r2ww51","country_code":"IN","type":"education","lineage":["https://openalex.org/I244572783"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Shilpa Gite","raw_affiliation_strings":["Computer Science and Information Technology Department, Symbiosis Institute of Technology, Symbiosis International University (Deemed University), Pune, India"],"raw_orcid":"https://orcid.org/0000-0003-3882-7030","affiliations":[{"raw_affiliation_string":"Computer Science and Information Technology Department, Symbiosis Institute of Technology, Symbiosis International University (Deemed University), Pune, India","institution_ids":["https://openalex.org/I244572783"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5077770842","display_name":"Ketan Kotecha","orcid":"https://orcid.org/0000-0003-2653-3780"},"institutions":[{"id":"https://openalex.org/I244572783","display_name":"Symbiosis International University","ror":"https://ror.org/005r2ww51","country_code":"IN","type":"education","lineage":["https://openalex.org/I244572783"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ketan Kotecha","raw_affiliation_strings":["Computer Science and Information Technology Department, Symbiosis Institute of Technology, Symbiosis International University (Deemed University), Pune, India"],"raw_orcid":"https://orcid.org/0000-0003-2653-3780","affiliations":[{"raw_affiliation_string":"Computer Science and Information Technology Department, Symbiosis Institute of Technology, Symbiosis International University (Deemed University), Pune, India","institution_ids":["https://openalex.org/I244572783"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I244572783"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":5.5119,"has_fulltext":true,"cited_by_count":106,"citation_normalized_percentile":{"value":0.97223365,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":"9","issue":null,"first_page":"165806","last_page":"165840"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11448","display_name":"Face recognition and analysis","score":0.9987999796867371,"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/T11448","display_name":"Face recognition and analysis","score":0.9987999796867371,"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":0.9983000159263611,"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/T10057","display_name":"Face and Expression Recognition","score":0.9958999752998352,"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/facial-expression","display_name":"Facial expression","score":0.729533851146698},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6285227537155151},{"id":"https://openalex.org/keywords/feeling","display_name":"Feeling","score":0.5433098077774048},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.4882950782775879},{"id":"https://openalex.org/keywords/affective-computing","display_name":"Affective computing","score":0.48540958762168884},{"id":"https://openalex.org/keywords/interpersonal-communication","display_name":"Interpersonal communication","score":0.4800456762313843},{"id":"https://openalex.org/keywords/expression","display_name":"Expression (computer science)","score":0.45548030734062195},{"id":"https://openalex.org/keywords/emotion-recognition","display_name":"Emotion recognition","score":0.45117703080177307},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.43489086627960205},{"id":"https://openalex.org/keywords/data-science","display_name":"Data science","score":0.38393133878707886},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3377075791358948},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.24384567141532898},{"id":"https://openalex.org/keywords/social-psychology","display_name":"Social psychology","score":0.09154877066612244}],"concepts":[{"id":"https://openalex.org/C195704467","wikidata":"https://www.wikidata.org/wiki/Q327968","display_name":"Facial expression","level":2,"score":0.729533851146698},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6285227537155151},{"id":"https://openalex.org/C122980154","wikidata":"https://www.wikidata.org/wiki/Q205555","display_name":"Feeling","level":2,"score":0.5433098077774048},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.4882950782775879},{"id":"https://openalex.org/C6438553","wikidata":"https://www.wikidata.org/wiki/Q1185804","display_name":"Affective computing","level":2,"score":0.48540958762168884},{"id":"https://openalex.org/C164850336","wikidata":"https://www.wikidata.org/wiki/Q3685487","display_name":"Interpersonal communication","level":2,"score":0.4800456762313843},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.45548030734062195},{"id":"https://openalex.org/C2777438025","wikidata":"https://www.wikidata.org/wiki/Q1339090","display_name":"Emotion recognition","level":2,"score":0.45117703080177307},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.43489086627960205},{"id":"https://openalex.org/C2522767166","wikidata":"https://www.wikidata.org/wiki/Q2374463","display_name":"Data science","level":1,"score":0.38393133878707886},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3377075791358948},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.24384567141532898},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.09154877066612244},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","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/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2021.3131733","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3131733","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09631205.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:26788f995e4a4cc7a482c0d3d18826f7","is_oa":true,"landing_page_url":"https://doaj.org/article/26788f995e4a4cc7a482c0d3d18826f7","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 9, Pp 165806-165840 (2021)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2021.3131733","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3131733","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/6514899/09631205.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":[{"score":0.7200000286102295,"id":"https://metadata.un.org/sdg/3","display_name":"Good health and well-being"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320324099","display_name":"Russian Science Foundation","ror":"https://ror.org/03y2gwe85"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3217570271.pdf","grobid_xml":"https://content.openalex.org/works/W3217570271.grobid-xml"},"referenced_works_count":228,"referenced_works":["https://openalex.org/W9376437","https://openalex.org/W16016350","https://openalex.org/W103449527","https://openalex.org/W213343370","https://openalex.org/W1505775920","https://openalex.org/W1523493493","https://openalex.org/W1524838788","https://openalex.org/W1531001945","https://openalex.org/W1547224907","https://openalex.org/W1631012836","https://openalex.org/W1633227573","https://openalex.org/W1677920914","https://openalex.org/W1686810756","https://openalex.org/W1916406603","https://openalex.org/W1959608418","https://openalex.org/W1967022116","https://openalex.org/W1974210421","https://openalex.org/W1974418679","https://openalex.org/W1994488211","https://openalex.org/W1995937139","https://openalex.org/W2002948879","https://openalex.org/W2003823024","https://openalex.org/W2004068758","https://openalex.org/W2006431213","https://openalex.org/W2006815932","https://openalex.org/W2014185685","https://openalex.org/W2015463594","https://openalex.org/W2017257315","https://openalex.org/W2033655022","https://openalex.org/W2036250785","https://openalex.org/W2039119694","https://openalex.org/W2040699449","https://openalex.org/W2048765566","https://openalex.org/W2054211948","https://openalex.org/W2064675550","https://openalex.org/W2066332159","https://openalex.org/W2070574643","https://openalex.org/W2077943861","https://openalex.org/W2084567445","https://openalex.org/W2090213288","https://openalex.org/W2090723329","https://openalex.org/W2092018159","https://openalex.org/W2097117768","https://openalex.org/W2098951409","https://openalex.org/W2098968525","https://openalex.org/W2100495367","https://openalex.org/W2101926813","https://openalex.org/W2103943262","https://openalex.org/W2121293528","https://openalex.org/W2122476475","https://openalex.org/W2128897837","https://openalex.org/W2134249892","https://openalex.org/W2136655611","https://openalex.org/W2136922672","https://openalex.org/W2137071639","https://openalex.org/W2150355110","https://openalex.org/W2152633621","https://openalex.org/W2156503193","https://openalex.org/W2161767899","https://openalex.org/W2162931300","https://openalex.org/W2164122462","https://openalex.org/W2172803778","https://openalex.org/W2179352600","https://openalex.org/W2186574009","https://openalex.org/W2194775991","https://openalex.org/W2198512331","https://openalex.org/W2217448953","https://openalex.org/W2222142905","https://openalex.org/W2244142460","https://openalex.org/W2246249023","https://openalex.org/W2247689392","https://openalex.org/W2277498883","https://openalex.org/W2279098554","https://openalex.org/W2285052147","https://openalex.org/W2288251445","https://openalex.org/W2304348237","https://openalex.org/W2319520588","https://openalex.org/W2332270997","https://openalex.org/W2337671281","https://openalex.org/W2341528187","https://openalex.org/W2349191642","https://openalex.org/W2405394324","https://openalex.org/W2470150531","https://openalex.org/W2474462106","https://openalex.org/W2509114481","https://openalex.org/W2510999878","https://openalex.org/W2528333963","https://openalex.org/W2531409750","https://openalex.org/W2534322208","https://openalex.org/W2547246052","https://openalex.org/W2548529926","https://openalex.org/W2548899748","https://openalex.org/W2549139847","https://openalex.org/W2554268477","https://openalex.org/W2556027894","https://openalex.org/W2560473673","https://openalex.org/W2585658440","https://openalex.org/W2604544159","https://openalex.org/W2604995628","https://openalex.org/W2608956662","https://openalex.org/W2617750261","https://openalex.org/W2618530766","https://openalex.org/W2658460662","https://openalex.org/W2734496894","https://openalex.org/W2735341065","https://openalex.org/W2737559518","https://openalex.org/W2745497104","https://openalex.org/W2750692136","https://openalex.org/W2751039952","https://openalex.org/W2755322216","https://openalex.org/W2762582125","https://openalex.org/W2767618761","https://openalex.org/W2768729901","https://openalex.org/W2776291635","https://openalex.org/W2783407418","https://openalex.org/W2787338605","https://openalex.org/W2788728386","https://openalex.org/W2792578050","https://openalex.org/W2797595449","https://openalex.org/W2799041689","https://openalex.org/W2799978845","https://openalex.org/W2801312298","https://openalex.org/W2801973746","https://openalex.org/W2805568747","https://openalex.org/W2890104572","https://openalex.org/W2891191887","https://openalex.org/W2891399311","https://openalex.org/W2896277673","https://openalex.org/W2899003209","https://openalex.org/W2902499931","https://openalex.org/W2903181347","https://openalex.org/W2904797294","https://openalex.org/W2909658593","https://openalex.org/W2910121883","https://openalex.org/W2913721463","https://openalex.org/W2914988866","https://openalex.org/W2917854536","https://openalex.org/W2920827296","https://openalex.org/W2921853616","https://openalex.org/W2922915988","https://openalex.org/W2934216562","https://openalex.org/W2943371740","https://openalex.org/W2945869501","https://openalex.org/W2947045439","https://openalex.org/W2949553350","https://openalex.org/W2951461152","https://openalex.org/W2951939904","https://openalex.org/W2954996726","https://openalex.org/W2955425717","https://openalex.org/W2962734882","https://openalex.org/W2962750121","https://openalex.org/W2963125010","https://openalex.org/W2963163009","https://openalex.org/W2963446712","https://openalex.org/W2963583420","https://openalex.org/W2963713173","https://openalex.org/W2963767194","https://openalex.org/W2963858339","https://openalex.org/W2964014798","https://openalex.org/W2964350391","https://openalex.org/W2971794874","https://openalex.org/W2974043081","https://openalex.org/W2975003464","https://openalex.org/W2982427148","https://openalex.org/W2991380548","https://openalex.org/W2997574889","https://openalex.org/W2998198598","https://openalex.org/W3001587372","https://openalex.org/W3003317175","https://openalex.org/W3015925440","https://openalex.org/W3024193661","https://openalex.org/W3043400672","https://openalex.org/W3043496927","https://openalex.org/W3044815875","https://openalex.org/W3046290310","https://openalex.org/W3081090156","https://openalex.org/W3089923070","https://openalex.org/W3092698371","https://openalex.org/W3100321043","https://openalex.org/W3101998545","https://openalex.org/W3106753828","https://openalex.org/W3108662714","https://openalex.org/W3114195756","https://openalex.org/W3122081138","https://openalex.org/W3124054989","https://openalex.org/W3124675547","https://openalex.org/W3128633047","https://openalex.org/W3130875629","https://openalex.org/W3158712146","https://openalex.org/W3168463823","https://openalex.org/W3174188066","https://openalex.org/W4231109964","https://openalex.org/W4248479316","https://openalex.org/W4287597288","https://openalex.org/W4297775537","https://openalex.org/W4301383669","https://openalex.org/W4318619660","https://openalex.org/W6631319189","https://openalex.org/W6637373629","https://openalex.org/W6640963894","https://openalex.org/W6665355796","https://openalex.org/W6674914833","https://openalex.org/W6676338569","https://openalex.org/W6678029491","https://openalex.org/W6678111577","https://openalex.org/W6678242812","https://openalex.org/W6679997575","https://openalex.org/W6681096077","https://openalex.org/W6682738433","https://openalex.org/W6683965311","https://openalex.org/W6687483927","https://openalex.org/W6687716273","https://openalex.org/W6691023552","https://openalex.org/W6694260854","https://openalex.org/W6695314431","https://openalex.org/W6728757088","https://openalex.org/W6735204497","https://openalex.org/W6737664043","https://openalex.org/W6738383699","https://openalex.org/W6749781174","https://openalex.org/W6750749693","https://openalex.org/W6754672928","https://openalex.org/W6762718338","https://openalex.org/W6764945797","https://openalex.org/W6784319142","https://openalex.org/W6785543354","https://openalex.org/W6790428460","https://openalex.org/W7009892252"],"related_works":["https://openalex.org/W3080495370","https://openalex.org/W2584926856","https://openalex.org/W2014713986","https://openalex.org/W4285597148","https://openalex.org/W2901531394","https://openalex.org/W2745497104","https://openalex.org/W2083738729","https://openalex.org/W1997400788","https://openalex.org/W2767348466","https://openalex.org/W4321599321"],"abstract_inverted_index":{"Facial":[0,52],"expressions":[1,41,123],"are":[2],"mirrors":[3],"of":[4,13,22,35,39,59,124,141,156,181,205,218],"human":[5,49],"thoughts":[6],"and":[7,26,79,103,118,127,165,191,224],"feelings.":[8],"It":[9,28],"provides":[10,166],"a":[11,32,43,98,105,153,178],"wealth":[12],"social":[14],"cues":[15],"to":[16,91,101],"the":[17,20,60,84,92,111,120,137,157,161,167,174,192,203,206,211,228,232],"viewer,":[18],"including":[19,185],"focus":[21],"attention,":[23],"intention,":[24],"motivation,":[25],"emotion.":[27],"is":[29,210],"regarded":[30],"as":[31],"potent":[33],"tool":[34],"silent":[36],"communication.":[37],"Analysis":[38],"these":[40],"gives":[42],"significantly":[44,226],"more":[45],"profound":[46],"insight":[47],"into":[48],"behavior.":[50],"AI-based":[51,182],"Expression":[53],"Recognition":[54],"(FER)":[55],"has":[56,96,144],"become":[57],"one":[58],"crucial":[61],"research":[62,142,229],"topics":[63],"in":[64,69,136,147,198,231],"recent":[65,193],"years,":[66],"with":[67,83,110,195],"applications":[68,197],"dynamic":[70],"analysis,":[71],"pattern":[72],"recognition,":[73],"interpersonal":[74],"interaction,":[75],"mental":[76],"health":[77],"monitoring,":[78],"many":[80],"more.":[81],"However,":[82,150],"global":[85],"push":[86],"towards":[87],"online":[88],"platforms":[89],"due":[90],"Covid-19":[93],"pandemic,":[94],"there":[95],"been":[97,145],"pressing":[99],"need":[100],"innovate":[102],"offer":[104],"new":[106],"FER":[107,138,183,219],"analysis":[108],"framework":[109],"increasing":[112],"visual":[113],"data":[114],"generated":[115],"by":[116],"videos":[117],"photographs.Furthermore,":[119],"emotion-wise":[121],"facial":[122,199],"kids,":[125],"adults,":[126],"senior":[128],"citizens":[129],"vary,":[130],"which":[131],"must":[132],"also":[133],"be":[134],"considered":[135],"research.":[139],"Lots":[140],"work":[143,163],"done":[146,164],"this":[148,172,209],"area.":[149],"it":[151],"lacks":[152],"comprehensive":[154,179],"overview":[155],"literature":[158],"that":[159],"showcases":[160],"past":[162],"aligned":[168],"future":[169],"directions.":[170],"In":[171],"paper,":[173],"authors":[175],"have":[176],"provided":[177],"evaluation":[180],"methodologies,":[184],"datasets,":[186],"feature":[187],"extraction":[188],"techniques,":[189],"algorithms,":[190],"breakthroughs":[194],"their":[196],"expression":[200],"identification.":[201],"To":[202],"best":[204],"author\u2019s":[207],"knowledge,":[208],"only":[212],"review":[213],"paper":[214],"stating":[215],"all":[216],"aspects":[217],"for":[220],"various":[221],"age":[222],"brackets":[223],"would":[225],"impact":[227],"community":[230],"coming":[233],"years.":[234]},"counts_by_year":[{"year":2026,"cited_by_count":10},{"year":2025,"cited_by_count":35},{"year":2024,"cited_by_count":36},{"year":2023,"cited_by_count":18},{"year":2022,"cited_by_count":7}],"updated_date":"2026-07-25T15:57:00.446498","created_date":"2021-12-06T00:00:00"}