{"id":"https://openalex.org/W2979695315","doi":"https://doi.org/10.1145/3323503.3360625","title":"A baseline for NSFW video detection in e-learning environments","display_name":"A baseline for NSFW video detection in e-learning environments","publication_year":2019,"publication_date":"2019-10-10","ids":{"openalex":"https://openalex.org/W2979695315","doi":"https://doi.org/10.1145/3323503.3360625","mag":"2979695315"},"language":"en","primary_location":{"id":"doi:10.1145/3323503.3360625","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3323503.3360625","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/A5069651005","display_name":"Pedro V. A. de Freitas","orcid":null},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontif\u00edcia Universidade Cat\u00f3lica do Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Pedro V. A. de Freitas","raw_affiliation_strings":["TeleM\u00eddia/PUC-Rio"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TeleM\u00eddia/PUC-Rio","institution_ids":["https://openalex.org/I2699952"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112249852","display_name":"Gabriel N. P. dos Santos","orcid":null},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontif\u00edcia Universidade Cat\u00f3lica do Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Gabriel N. P. dos Santos","raw_affiliation_strings":["TeleM\u00eddia/PUC-Rio"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TeleM\u00eddia/PUC-Rio","institution_ids":["https://openalex.org/I2699952"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065210802","display_name":"Antonio Jos\u00e9 G. Busson","orcid":"https://orcid.org/0000-0001-5394-0707"},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontif\u00edcia Universidade Cat\u00f3lica do Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Antonio J. G. Busson","raw_affiliation_strings":["TeleM\u00eddia/PUC-Rio"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TeleM\u00eddia/PUC-Rio","institution_ids":["https://openalex.org/I2699952"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059620310","display_name":"\u00c1lan L. V. Guedes","orcid":"https://orcid.org/0000-0003-0110-9975"},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontif\u00edcia Universidade Cat\u00f3lica do Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"\u00c1lan L. V. Guedes","raw_affiliation_strings":["TeleM\u00eddia/PUC-Rio"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"TeleM\u00eddia/PUC-Rio","institution_ids":["https://openalex.org/I2699952"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047247399","display_name":"S\u00e9rgio Colcher","orcid":"https://orcid.org/0000-0002-3476-8718"},"institutions":[{"id":"https://openalex.org/I2699952","display_name":"Pontif\u00edcia Universidade Cat\u00f3lica do Rio de Janeiro","ror":"https://ror.org/01dg47b60","country_code":"BR","type":"education","lineage":["https://openalex.org/I2699952"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"S\u00e9rgio Colcher","raw_affiliation_strings":["Informatics Departament/PUC-Rio"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Informatics Departament/PUC-Rio","institution_ids":["https://openalex.org/I2699952"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2699952"],"apc_list":null,"apc_paid":null,"fwci":0.366,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.66240804,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"357","last_page":"360"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12357","display_name":"Digital Media Forensic Detection","score":0.9997000098228455,"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/T12357","display_name":"Digital Media Forensic Detection","score":0.9997000098228455,"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/T10812","display_name":"Human Pose and Action 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"}},{"id":"https://openalex.org/T11439","display_name":"Video Analysis and Summarization","score":0.9954000115394592,"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/computer-science","display_name":"Computer science","score":0.8415334820747375},{"id":"https://openalex.org/keywords/convolutional-neural-network","display_name":"Convolutional neural network","score":0.6432818174362183},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.5180044770240784},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5178423523902893},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.4528062343597412},{"id":"https://openalex.org/keywords/video-processing","display_name":"Video processing","score":0.4520913064479828}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8415334820747375},{"id":"https://openalex.org/C81363708","wikidata":"https://www.wikidata.org/wiki/Q17084460","display_name":"Convolutional neural network","level":2,"score":0.6432818174362183},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.5180044770240784},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5178423523902893},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.4528062343597412},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.4520913064479828}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3323503.3360625","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3323503.3360625","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":[{"id":"https://metadata.un.org/sdg/5","score":0.6899999976158142,"display_name":"Gender equality"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W1578285471","https://openalex.org/W1686810756","https://openalex.org/W2088252378","https://openalex.org/W2119821739","https://openalex.org/W2167912153","https://openalex.org/W2183341477","https://openalex.org/W2266464013","https://openalex.org/W2521373549","https://openalex.org/W2526050071","https://openalex.org/W2706729717","https://openalex.org/W2735824323","https://openalex.org/W2887280559","https://openalex.org/W4239510810"],"related_works":["https://openalex.org/W4293226380","https://openalex.org/W4321487865","https://openalex.org/W4313906399","https://openalex.org/W4391266461","https://openalex.org/W2590798552","https://openalex.org/W2811106690","https://openalex.org/W4239306820","https://openalex.org/W2947043951","https://openalex.org/W4399188509","https://openalex.org/W2365286546"],"abstract_inverted_index":{"The":[0,43],"broad":[1],"use":[2],"of":[3,17,21,33,135],"video":[4,22,40,106,113,120],"capture":[5],"and":[6,11],"services":[7],"for":[8,38,57,89,105,118,137],"its":[9],"storage":[10,41],"transmission":[12],"has":[13],"enabled":[14],"the":[15,31,85],"production":[16],"a":[18,27,55,101,123,133],"massive":[19],"volume":[20],"data.":[23],"This":[24],"usage":[25],"presents":[26],"challenge":[28],"in":[29],"controlling":[30],"type":[32],"content":[34],"that":[35,59],"is":[36,51],"loaded":[37],"these":[39,112],"services.":[42],"Internet":[44],"slang":[45],"NSFW":[46,119,138],"(Not":[47],"Safe":[48],"For":[49],"Work)":[50],"often":[52],"used":[53,88],"as":[54,64],"warning":[56],"media":[58],"contain":[60],"inappropriate":[61],"content,":[62],"such":[63],"nudity,":[65],"intense":[66],"sexuality,":[67],"violence,":[68],"gore":[69],"or":[70,81],"other":[71],"potentially":[72],"disturbing":[73],"subject":[74],"matter.":[75],"Convolutional":[76],"Neural":[77],"Network":[78],"(CNNs)":[79],"architectures,":[80],"ConvNets,":[82],"have":[83],"become":[84],"primary":[86],"method":[87],"audio-visual":[90],"pattern":[91],"recognition.":[92],"In":[93,126],"this":[94],"work,":[95],"we":[96],"intend":[97],"to:":[98],"(1)":[99],"create":[100],"CNN":[102],"based":[103],"model":[104,131],"features":[107,114],"extraction;":[108],"And":[109],"(2),":[110],"validate":[111],"with":[115],"baselines":[116],"models":[117],"classification":[121],"using":[122],"multi-modal":[124],"approach.":[125],"initial":[127],"experimentation,":[128],"our":[129],"best":[130],"achieves":[132],"recall":[134],"96.6%":[136],"class.":[139]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}