{"id":"https://openalex.org/W3137257141","doi":"https://doi.org/10.3390/s21061997","title":"Modeling of Recommendation System Based on Emotional Information and Collaborative Filtering","display_name":"Modeling of Recommendation System Based on Emotional Information and Collaborative Filtering","publication_year":2021,"publication_date":"2021-03-12","ids":{"openalex":"https://openalex.org/W3137257141","doi":"https://doi.org/10.3390/s21061997","mag":"3137257141","pmid":"https://pubmed.ncbi.nlm.nih.gov/33808989"},"language":"en","primary_location":{"id":"doi:10.3390/s21061997","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21061997","pdf_url":"https://www.mdpi.com/1424-8220/21/6/1997/pdf?version=1615536853","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/21/6/1997/pdf?version=1615536853","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5042174448","display_name":"Tae-Yeun Kim","orcid":"https://orcid.org/0000-0002-1644-1869"},"institutions":[{"id":"https://openalex.org/I152238500","display_name":"Chosun University","ror":"https://ror.org/01zt9a375","country_code":"KR","type":"education","lineage":["https://openalex.org/I152238500"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Tae-Yeun Kim","raw_affiliation_strings":["National Program of Excellence in Software Center, Chosun University, Gwangju 61452, Korea"],"raw_orcid":"https://orcid.org/0000-0002-1644-1869","affiliations":[{"raw_affiliation_string":"National Program of Excellence in Software Center, Chosun University, Gwangju 61452, Korea","institution_ids":["https://openalex.org/I152238500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021585332","display_name":"Hoon Ko","orcid":"https://orcid.org/0000-0002-4604-1735"},"institutions":[{"id":"https://openalex.org/I152238500","display_name":"Chosun University","ror":"https://ror.org/01zt9a375","country_code":"KR","type":"education","lineage":["https://openalex.org/I152238500"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hoon Ko","raw_affiliation_strings":["IT Research Institute, Chosun University, Gwangju 61452, Korea"],"raw_orcid":"https://orcid.org/0000-0002-4604-1735","affiliations":[{"raw_affiliation_string":"IT Research Institute, Chosun University, Gwangju 61452, Korea","institution_ids":["https://openalex.org/I152238500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100430159","display_name":"Sung-Hwan Kim","orcid":"https://orcid.org/0000-0002-9312-7363"},"institutions":[{"id":"https://openalex.org/I152238500","display_name":"Chosun University","ror":"https://ror.org/01zt9a375","country_code":"KR","type":"education","lineage":["https://openalex.org/I152238500"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Sung-Hwan Kim","raw_affiliation_strings":["National Program of Excellence in Software Center, Chosun University, Gwangju 61452, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Program of Excellence in Software Center, Chosun University, Gwangju 61452, Korea","institution_ids":["https://openalex.org/I152238500"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087913278","display_name":"Ho-Da Kim","orcid":null},"institutions":[{"id":"https://openalex.org/I152238500","display_name":"Chosun University","ror":"https://ror.org/01zt9a375","country_code":"KR","type":"education","lineage":["https://openalex.org/I152238500"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Ho-Da Kim","raw_affiliation_strings":["National Program of Excellence in Software Center, Chosun University, Gwangju 61452, Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Program of Excellence in Software Center, Chosun University, Gwangju 61452, Korea","institution_ids":["https://openalex.org/I152238500"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5087913278"],"corresponding_institution_ids":["https://openalex.org/I152238500"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":8.3655,"has_fulltext":false,"cited_by_count":64,"citation_normalized_percentile":{"value":0.98064838,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":100},"biblio":{"volume":"21","issue":"6","first_page":"1997","last_page":"1997"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10667","display_name":"Emotion and Mood Recognition","score":0.9939000010490417,"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":0.9939000010490417,"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9934999942779541,"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/T11309","display_name":"Music and Audio Processing","score":0.9929999709129333,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/computer-science","display_name":"Computer science","score":0.6742042303085327},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.6055052280426025},{"id":"https://openalex.org/keywords/emotion-classification","display_name":"Emotion classification","score":0.5031363368034363},{"id":"https://openalex.org/keywords/feature-selection","display_name":"Feature selection","score":0.47994664311408997},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4779003858566284},{"id":"https://openalex.org/keywords/collaborative-filtering","display_name":"Collaborative filtering","score":0.4635884463787079},{"id":"https://openalex.org/keywords/variety","display_name":"Variety (cybernetics)","score":0.43746158480644226},{"id":"https://openalex.org/keywords/euclidean-distance","display_name":"Euclidean distance","score":0.4372527301311493},{"id":"https://openalex.org/keywords/recommender-system","display_name":"Recommender system","score":0.43070125579833984},{"id":"https://openalex.org/keywords/kernel","display_name":"Kernel (algebra)","score":0.41317492723464966},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.3596162497997284},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.13072726130485535}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6742042303085327},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.6055052280426025},{"id":"https://openalex.org/C206310091","wikidata":"https://www.wikidata.org/wiki/Q750859","display_name":"Emotion classification","level":2,"score":0.5031363368034363},{"id":"https://openalex.org/C148483581","wikidata":"https://www.wikidata.org/wiki/Q446488","display_name":"Feature selection","level":2,"score":0.47994664311408997},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4779003858566284},{"id":"https://openalex.org/C21569690","wikidata":"https://www.wikidata.org/wiki/Q94702","display_name":"Collaborative filtering","level":3,"score":0.4635884463787079},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.43746158480644226},{"id":"https://openalex.org/C120174047","wikidata":"https://www.wikidata.org/wiki/Q847073","display_name":"Euclidean distance","level":2,"score":0.4372527301311493},{"id":"https://openalex.org/C557471498","wikidata":"https://www.wikidata.org/wiki/Q554950","display_name":"Recommender system","level":2,"score":0.43070125579833984},{"id":"https://openalex.org/C74193536","wikidata":"https://www.wikidata.org/wiki/Q574844","display_name":"Kernel (algebra)","level":2,"score":0.41317492723464966},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.3596162497997284},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.13072726130485535},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0}],"mesh":[{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D000465","descriptor_name":"Algorithms","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D004644","descriptor_name":"Emotions","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004644","descriptor_name":"Emotions","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D004644","descriptor_name":"Emotions","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D009146","descriptor_name":"Music","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009146","descriptor_name":"Music","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D009146","descriptor_name":"Music","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D013060","descriptor_name":"Speech","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013060","descriptor_name":"Speech","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D013060","descriptor_name":"Speech","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D060388","descriptor_name":"Support Vector Machine","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D060388","descriptor_name":"Support Vector Machine","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D060388","descriptor_name":"Support Vector Machine","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":5,"locations":[{"id":"doi:10.3390/s21061997","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21061997","pdf_url":"https://www.mdpi.com/1424-8220/21/6/1997/pdf?version=1615536853","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:33808989","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33808989","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:b6a7d493625f4d5497dccf814013899b","is_oa":true,"landing_page_url":"https://doaj.org/article/b6a7d493625f4d5497dccf814013899b","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":"Sensors, Vol 21, Iss 6, p 1997 (2021)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/21/6/1997/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s21061997","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 21; Issue 6; Pages: 1997","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7999638","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7999638","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s21061997","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s21061997","pdf_url":"https://www.mdpi.com/1424-8220/21/6/1997/pdf?version=1615536853","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3137257141.pdf","grobid_xml":"https://content.openalex.org/works/W3137257141.grobid-xml"},"referenced_works_count":45,"referenced_works":["https://openalex.org/W1593464643","https://openalex.org/W1973545030","https://openalex.org/W1979055460","https://openalex.org/W1984917302","https://openalex.org/W2004039783","https://openalex.org/W2048039201","https://openalex.org/W2128171688","https://openalex.org/W2150692003","https://openalex.org/W2165857685","https://openalex.org/W2285035590","https://openalex.org/W2516026297","https://openalex.org/W2530242266","https://openalex.org/W2563401810","https://openalex.org/W2605244930","https://openalex.org/W2614556125","https://openalex.org/W2620021488","https://openalex.org/W2766272105","https://openalex.org/W2766756589","https://openalex.org/W2778978785","https://openalex.org/W2796337804","https://openalex.org/W2799331981","https://openalex.org/W2883712679","https://openalex.org/W2900037010","https://openalex.org/W2910178281","https://openalex.org/W2919127404","https://openalex.org/W2926361161","https://openalex.org/W2931596836","https://openalex.org/W2963804705","https://openalex.org/W2973909019","https://openalex.org/W2977979692","https://openalex.org/W2997399314","https://openalex.org/W2998818000","https://openalex.org/W3008039831","https://openalex.org/W3010878551","https://openalex.org/W3011558710","https://openalex.org/W3012197804","https://openalex.org/W3014475539","https://openalex.org/W3022013598","https://openalex.org/W3033581782","https://openalex.org/W3048090006","https://openalex.org/W3119081340","https://openalex.org/W4212951177","https://openalex.org/W6765860322","https://openalex.org/W6768022440","https://openalex.org/W6782309689"],"related_works":["https://openalex.org/W1484355083","https://openalex.org/W2772628444","https://openalex.org/W4220714703","https://openalex.org/W2735929803","https://openalex.org/W2170391450","https://openalex.org/W2098758514","https://openalex.org/W3008845055","https://openalex.org/W2041004656","https://openalex.org/W135044020","https://openalex.org/W4376854386"],"abstract_inverted_index":{"Emotion":[0],"information":[1,92,173,184,193],"represents":[2],"a":[3,13,101,120,198,217],"user's":[4],"current":[5],"emotional":[6,28,207],"state":[7],"and":[8,30,42,46,52,64,82,93,126,166,179,191,209],"can":[9],"be":[10],"used":[11,108,119,203],"in":[12,216],"variety":[14],"of":[15,160],"applications,":[16],"such":[17,48,61],"as":[18,49,100],"cultural":[19],"content":[20,163,211],"services":[21],"that":[22,146,185,194,212],"recommend":[23,94,210],"music":[24],"according":[25,113],"to":[26,67,87,109,114,204],"user":[27,31,36,44,69,89,206,214],"states":[29],"emotion":[32,91,116,157,172,192],"monitoring.":[33],"To":[34],"increase":[35,68],"satisfaction,":[37],"recommendation":[38,56],"methods":[39,57],"must":[40],"understand":[41],"reflect":[43,60],"characteristics":[45,62],"circumstances,":[47],"individual":[50],"preferences":[51,208],"emotions.":[53,137],"However,":[54],"most":[55],"do":[58],"not":[59],"accurately":[63],"are":[65,84],"unable":[66],"satisfaction.":[70],"In":[71],"this":[72],"paper,":[73],"six":[74,135],"human":[75],"emotions":[76,190,215],"(neutral,":[77],"happy,":[78],"sad,":[79],"angry,":[80],"surprised,":[81],"bored)":[83],"broadly":[85],"defined":[86],"consider":[88],"speech":[90,112,115,183],"matching":[95],"content.":[96],"The":[97],"\"genetic":[98],"algorithms":[99],"feature":[102],"selection":[103],"method\"":[104],"(GAFS)":[105],"algorithm":[106,125],"was":[107,186,195],"classify":[110],"normalized":[111],"information.":[117],"We":[118],"support":[121],"vector":[122],"machine":[123],"(SVM)":[124],"selected":[127],"an":[128],"optimal":[129],"kernel":[130,143,152],"function":[131,144,150,153],"for":[132,141],"recognizing":[133],"the":[134,147,155],"target":[136],"Performance":[138],"evaluation":[139],"results":[140],"each":[142],"revealed":[145],"radial":[148],"basis":[149],"(RBF)":[151],"yielded":[154],"highest":[156],"recognition":[158],"accuracy":[159],"86.98%.":[161],"Additionally,":[162],"data":[164],"(images":[165],"music)":[167],"were":[168,202],"classified":[169,187],"based":[170,188],"on":[171,189],"using":[174],"factor":[175],"analysis,":[176,178],"correspondence":[177],"Euclidean":[180],"distance.":[181],"Finally,":[182],"recognized":[196],"through":[197],"collaborative":[199],"filtering":[200],"technique":[201],"predict":[205],"matched":[213],"mobile":[218],"application.":[219]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":16},{"year":2024,"cited_by_count":15},{"year":2023,"cited_by_count":11},{"year":2022,"cited_by_count":18},{"year":2021,"cited_by_count":2}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}