{"id":"https://openalex.org/W4409039586","doi":"https://doi.org/10.1504/ijmlo.2025.145278","title":"Developing a new ensemble method for sentiment analysis in mobile assisted language learning: a case study for Duolingo","display_name":"Developing a new ensemble method for sentiment analysis in mobile assisted language learning: a case study for Duolingo","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4409039586","doi":"https://doi.org/10.1504/ijmlo.2025.145278"},"language":"en","primary_location":{"id":"doi:10.1504/ijmlo.2025.145278","is_oa":false,"landing_page_url":"https://doi.org/10.1504/ijmlo.2025.145278","pdf_url":null,"source":{"id":"https://openalex.org/S175010741","display_name":"International Journal of Mobile Learning and Organisation","issn_l":"1746-725X","issn":["1746-725X","1746-7268"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310317825","host_organization_name":"Inderscience Publishers","host_organization_lineage":["https://openalex.org/P4310317825"],"host_organization_lineage_names":["Inderscience Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Mobile Learning and Organisation","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/A5082148338","display_name":"Hakan Kek\u00fcl","orcid":"https://orcid.org/0000-0001-6269-8713"},"institutions":[{"id":"https://openalex.org/I12700597","display_name":"Sivas Cumhuriyet \u00dcniversitesi","ror":"https://ror.org/04f81fm77","country_code":"TR","type":"education","lineage":["https://openalex.org/I12700597"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Hakan Kek\u00fcl","raw_affiliation_strings":["Department of Software Engineering, Faculty of Technology, Sivas Cumhuriyet University, Sivas, Turkey"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Software Engineering, Faculty of Technology, Sivas Cumhuriyet University, Sivas, Turkey","institution_ids":["https://openalex.org/I12700597"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5046798695","display_name":"Mesut Polatg\u0131l","orcid":"https://orcid.org/0000-0002-7503-2977"},"institutions":[{"id":"https://openalex.org/I12700597","display_name":"Sivas Cumhuriyet \u00dcniversitesi","ror":"https://ror.org/04f81fm77","country_code":"TR","type":"education","lineage":["https://openalex.org/I12700597"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Mesut Polatgil","raw_affiliation_strings":["Department of Computer Systems and Technologies, \u015eark\u0131\u015fla School of Applied Sciences, Sivas Cumhuriyet University, Turkey"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Systems and Technologies, \u015eark\u0131\u015fla School of Applied Sciences, Sivas Cumhuriyet University, Turkey","institution_ids":["https://openalex.org/I12700597"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I12700597"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.02690874,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"19","issue":"2","first_page":"156","last_page":"176"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12031","display_name":"Speech and dialogue systems","score":0.9093000292778015,"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"}},"topics":[{"id":"https://openalex.org/T12031","display_name":"Speech and dialogue systems","score":0.9093000292778015,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6361359357833862},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.5151821374893188},{"id":"https://openalex.org/keywords/sentiment-analysis","display_name":"Sentiment analysis","score":0.5013141632080078},{"id":"https://openalex.org/keywords/m-learning","display_name":"M-learning","score":0.46885356307029724},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4121599495410919},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.3432598114013672},{"id":"https://openalex.org/keywords/mobile-device","display_name":"Mobile device","score":0.22032085061073303},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.20315611362457275}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6361359357833862},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.5151821374893188},{"id":"https://openalex.org/C66402592","wikidata":"https://www.wikidata.org/wiki/Q2271421","display_name":"Sentiment analysis","level":2,"score":0.5013141632080078},{"id":"https://openalex.org/C2779106483","wikidata":"https://www.wikidata.org/wiki/Q1068077","display_name":"M-learning","level":3,"score":0.46885356307029724},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4121599495410919},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.3432598114013672},{"id":"https://openalex.org/C186967261","wikidata":"https://www.wikidata.org/wiki/Q5082128","display_name":"Mobile device","level":2,"score":0.22032085061073303},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.20315611362457275}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1504/ijmlo.2025.145278","is_oa":false,"landing_page_url":"https://doi.org/10.1504/ijmlo.2025.145278","pdf_url":null,"source":{"id":"https://openalex.org/S175010741","display_name":"International Journal of Mobile Learning and Organisation","issn_l":"1746-725X","issn":["1746-725X","1746-7268"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310317825","host_organization_name":"Inderscience Publishers","host_organization_lineage":["https://openalex.org/P4310317825"],"host_organization_lineage_names":["Inderscience Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Mobile Learning and Organisation","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","score":0.6100000143051147,"id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2548633793","https://openalex.org/W3013279174","https://openalex.org/W2941935829","https://openalex.org/W2596247554","https://openalex.org/W3132372214","https://openalex.org/W4224284088","https://openalex.org/W4286571989","https://openalex.org/W2765903680","https://openalex.org/W4317653575","https://openalex.org/W3204019825"],"abstract_inverted_index":{"In":[0,85],"today's":[1],"world,":[2],"mobile":[3,6,29,64],"devices":[4],"and":[5,28,62,98,101,131,133],"technologies":[7,23],"have":[8,24],"become":[9,26,35],"one":[10],"of":[11,82],"the":[12,59,76,86,102,111,119],"indispensable":[13],"elements,":[14],"especially":[15,142],"for":[16,143],"young":[17],"people.":[18],"Learning":[19],"activities":[20],"using":[21],"these":[22],"also":[25],"widespread,":[27],"assisted":[30],"language":[31,68,145],"learning":[32],"(MALL)":[33],"has":[34,107,114],"even":[36],"more":[37],"important.":[38],"This":[39],"study":[40],"was":[41,91],"conducted":[42],"to":[43,75,139],"evaluate":[44],"users'":[45],"opinions":[46,127],"about":[47],"MALL":[48],"methods.":[49],"For":[50],"this":[51],"purpose,":[52],"Duolingo":[53],"user":[54,126,140],"comments,":[55],"which":[56],"is":[57,123],"currently":[58],"most":[60],"known":[61],"used":[63],"application":[65],"in":[66,80],"foreign":[67,144],"education,":[69],"were":[70,104],"used.":[71],"One":[72],"million":[73],"comments":[74],"app":[77],"are":[78],"classified":[79],"terms":[81],"sentiment":[83],"analysis.":[84],"study,":[87],"a":[88],"new":[89],"model":[90,113],"proposed":[92,112,120],"by":[93],"combining":[94],"different":[95],"feature":[96],"extraction":[97],"classification":[99,116],"methods":[100],"results":[103],"compared.":[105],"It":[106],"been":[108],"determined":[109],"that":[110,125],"high":[115],"success.":[117],"With":[118],"model,":[121],"it":[122],"thought":[124],"can":[128,135],"be":[129,136],"analysed":[130],"software":[132],"applications":[134],"developed":[137],"according":[138],"needs,":[141],"learning.":[146]},"counts_by_year":[],"updated_date":"2025-12-28T23:10:05.387466","created_date":"2025-10-10T00:00:00"}