{"id":"https://openalex.org/W2980239773","doi":"https://doi.org/10.1145/3323503.3360619","title":"Hate speech detection using brazilian imageboards","display_name":"Hate speech detection using brazilian imageboards","publication_year":2019,"publication_date":"2019-10-10","ids":{"openalex":"https://openalex.org/W2980239773","doi":"https://doi.org/10.1145/3323503.3360619","mag":"2980239773"},"language":"en","primary_location":{"id":"doi:10.1145/3323503.3360619","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3323503.3360619","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 25th Brazillian Symposium on Multimedia and the Web","raw_type":"proceedings-article"},"type":"conference-paper","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/A5057601759","display_name":"Gabriel Nascimento","orcid":"https://orcid.org/0000-0002-7695-9264"},"institutions":[{"id":"https://openalex.org/I158509141","display_name":"Federal Center for Technological Education Celso Suckow da Fonseca","ror":"https://ror.org/03j8tnm47","country_code":"BR","type":"education","lineage":["https://openalex.org/I1293487690","https://openalex.org/I158509141","https://openalex.org/I2801200668"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Gabriel Nascimento","raw_affiliation_strings":["CEFET/RJ, Rio de Janeiro, RJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CEFET/RJ, Rio de Janeiro, RJ","institution_ids":["https://openalex.org/I158509141"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011397210","display_name":"Fl\u00e1vio Carvalho","orcid":"https://orcid.org/0000-0003-4317-5700"},"institutions":[{"id":"https://openalex.org/I158509141","display_name":"Federal Center for Technological Education Celso Suckow da Fonseca","ror":"https://ror.org/03j8tnm47","country_code":"BR","type":"education","lineage":["https://openalex.org/I1293487690","https://openalex.org/I158509141","https://openalex.org/I2801200668"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Flavio Carvalho","raw_affiliation_strings":["CEFET/RJ, Rio de Janeiro, RJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CEFET/RJ, Rio de Janeiro, RJ","institution_ids":["https://openalex.org/I158509141"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075746481","display_name":"Alexandre Martins Cunha","orcid":"https://orcid.org/0000-0003-1014-975X"},"institutions":[{"id":"https://openalex.org/I122140584","display_name":"Universidade Federal do Rio de Janeiro","ror":"https://ror.org/03490as77","country_code":"BR","type":"education","lineage":["https://openalex.org/I122140584"]},{"id":"https://openalex.org/I158509141","display_name":"Federal Center for Technological Education Celso Suckow da Fonseca","ror":"https://ror.org/03j8tnm47","country_code":"BR","type":"education","lineage":["https://openalex.org/I1293487690","https://openalex.org/I158509141","https://openalex.org/I2801200668"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Alexandre Martins da Cunha","raw_affiliation_strings":["CEFET/RJ - UFF, Rio de Janeiro, RJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CEFET/RJ - UFF, Rio de Janeiro, RJ","institution_ids":["https://openalex.org/I122140584","https://openalex.org/I158509141"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015145022","display_name":"Carlos Roberto Viana","orcid":null},"institutions":[{"id":"https://openalex.org/I158509141","display_name":"Federal Center for Technological Education Celso Suckow da Fonseca","ror":"https://ror.org/03j8tnm47","country_code":"BR","type":"education","lineage":["https://openalex.org/I1293487690","https://openalex.org/I158509141","https://openalex.org/I2801200668"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Carlos Roberto Viana","raw_affiliation_strings":["CEFET/RJ, Rio de Janeiro, RJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CEFET/RJ, Rio de Janeiro, RJ","institution_ids":["https://openalex.org/I158509141"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080983786","display_name":"Gustavo Paiva Guedes","orcid":"https://orcid.org/0000-0001-8593-1506"},"institutions":[{"id":"https://openalex.org/I158509141","display_name":"Federal Center for Technological Education Celso Suckow da Fonseca","ror":"https://ror.org/03j8tnm47","country_code":"BR","type":"education","lineage":["https://openalex.org/I1293487690","https://openalex.org/I158509141","https://openalex.org/I2801200668"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Gustavo Paiva Guedes","raw_affiliation_strings":["CEFET/RJ, Rio de Janeiro, RJ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CEFET/RJ, Rio de Janeiro, RJ","institution_ids":["https://openalex.org/I158509141"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":19,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"325","last_page":"328"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12262","display_name":"Hate Speech and Cyberbullying Detection","score":0.9998999834060669,"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/T12262","display_name":"Hate Speech and Cyberbullying Detection","score":0.9998999834060669,"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/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9878000020980835,"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/T11644","display_name":"Spam and Phishing Detection","score":0.9803000092506409,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/offensive","display_name":"Offensive","score":0.8426040410995483},{"id":"https://openalex.org/keywords/brazilian-portuguese","display_name":"Brazilian Portuguese","score":0.7281527519226074},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6619452834129333},{"id":"https://openalex.org/keywords/voice-activity-detection","display_name":"Voice activity detection","score":0.6489049196243286},{"id":"https://openalex.org/keywords/portuguese","display_name":"Portuguese","score":0.5932118892669678},{"id":"https://openalex.org/keywords/binary-classification","display_name":"Binary classification","score":0.5688923001289368},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.5492357015609741},{"id":"https://openalex.org/keywords/the-internet","display_name":"The Internet","score":0.5071372985839844},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.4501842260360718},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.4471641778945923},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.37589216232299805},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.34599578380584717},{"id":"https://openalex.org/keywords/speech-processing","display_name":"Speech processing","score":0.3361482322216034},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.2553001642227173},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.17877629399299622},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11780098080635071}],"concepts":[{"id":"https://openalex.org/C176856949","wikidata":"https://www.wikidata.org/wiki/Q2001676","display_name":"Offensive","level":2,"score":0.8426040410995483},{"id":"https://openalex.org/C2778880076","wikidata":"https://www.wikidata.org/wiki/Q750553","display_name":"Brazilian Portuguese","level":3,"score":0.7281527519226074},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6619452834129333},{"id":"https://openalex.org/C204201278","wikidata":"https://www.wikidata.org/wiki/Q1332614","display_name":"Voice activity detection","level":3,"score":0.6489049196243286},{"id":"https://openalex.org/C35219183","wikidata":"https://www.wikidata.org/wiki/Q5146","display_name":"Portuguese","level":2,"score":0.5932118892669678},{"id":"https://openalex.org/C66905080","wikidata":"https://www.wikidata.org/wiki/Q17005494","display_name":"Binary classification","level":3,"score":0.5688923001289368},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.5492357015609741},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.5071372985839844},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.4501842260360718},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.4471641778945923},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.37589216232299805},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.34599578380584717},{"id":"https://openalex.org/C61328038","wikidata":"https://www.wikidata.org/wiki/Q3358061","display_name":"Speech processing","level":2,"score":0.3361482322216034},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.2553001642227173},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.17877629399299622},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11780098080635071},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3323503.3360619","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3323503.3360619","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 25th Brazillian Symposium on Multimedia and the Web","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.800000011920929,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W1550206324","https://openalex.org/W1604280299","https://openalex.org/W1797580880","https://openalex.org/W1922832738","https://openalex.org/W1969183489","https://openalex.org/W1998257453","https://openalex.org/W2042093593","https://openalex.org/W2099813784","https://openalex.org/W2119821739","https://openalex.org/W2163803148","https://openalex.org/W2518059497","https://openalex.org/W2554487505","https://openalex.org/W2617906157","https://openalex.org/W2740168486","https://openalex.org/W2761700711","https://openalex.org/W2786634640","https://openalex.org/W2788494611","https://openalex.org/W2792441346","https://openalex.org/W2801887493","https://openalex.org/W2897703676","https://openalex.org/W2901937188","https://openalex.org/W2911964244","https://openalex.org/W2981177978","https://openalex.org/W3010744102","https://openalex.org/W3037438699","https://openalex.org/W3099496672","https://openalex.org/W4312366499"],"related_works":["https://openalex.org/W3148187920","https://openalex.org/W642007152","https://openalex.org/W2401827384","https://openalex.org/W2355290951","https://openalex.org/W4304187160","https://openalex.org/W2052688117","https://openalex.org/W2552102772","https://openalex.org/W4294771049","https://openalex.org/W1523214805","https://openalex.org/W2168417340"],"abstract_inverted_index":{"With":[0],"the":[1,8,14,110,137],"changes":[2],"in":[3,56,85,92],"human":[4],"interaction":[5],"prompted":[6],"by":[7],"development":[9],"of":[10,45,65,142],"communications":[11],"platforms":[12],"over":[13],"internet,":[15],"hate":[16,49,78,90,105,119,127],"speech":[17,91,120,128],"and":[18,33],"offensive":[19],"language":[20],"emerged":[21],"as":[22],"a":[23,43,82,116],"contemporary":[24],"problem.":[25],"Social":[26],"networks":[27],"allow":[28],"users":[29,75],"with":[30,118,140],"different":[31,66,69],"opinions":[32],"backgrounds":[34],"to":[35,47,98,103,114,126],"interact":[36],"without":[37],"direct":[38],"eye-to-eye":[39],"contact.":[40],"It":[41],"brings":[42],"sense":[44],"safety":[46],"promote":[48,77],"speech,":[50,106],"which":[51],"is":[52],"even":[53],"more":[54],"significant":[55],"anonymous":[57,74],"environments.":[58],"There":[59],"are":[60],"sites":[61],"called":[62],"imageboards,":[63],"composed":[64],"boards":[67],"aggregating":[68],"topics.":[70],"On":[71],"some":[72],"boards,":[73],"widely":[76],"speech.":[79],"However,":[80],"only":[81],"few":[83],"works":[84],"literature":[86],"have":[87],"focused":[88],"on":[89],"imageboards":[93],"content.":[94,121],"This":[95],"work":[96],"aims":[97],"classify":[99],"Brazilian":[100,111],"Portuguese":[101],"texts":[102],"detect":[104],"using":[107],"data":[108],"from":[109],"55chan":[112],"imageboard":[113],"build":[115],"dataset":[117],"Three":[122],"classifiers":[123],"were":[124],"trained":[125],"binary":[129],"classification.":[130],"The":[131],"Linear":[132],"Support":[133],"Vector":[134],"Classifier":[135],"achieved":[136],"best":[138],"result":[139],"0.955":[141],"F1-score.":[143]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1}],"updated_date":"2026-07-25T15:57:00.446498","created_date":"2025-10-10T00:00:00"}