{"id":"https://openalex.org/W1981361492","doi":"https://doi.org/10.1145/1971519.1971533","title":"Protection through multimedia CAPTCHAs","display_name":"Protection through multimedia CAPTCHAs","publication_year":2010,"publication_date":"2010-11-08","ids":{"openalex":"https://openalex.org/W1981361492","doi":"https://doi.org/10.1145/1971519.1971533","mag":"1981361492"},"language":"en","primary_location":{"id":"doi:10.1145/1971519.1971533","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1971519.1971533","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th International Conference on Advances in Mobile Computing and Multimedia","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":null,"any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5020712397","display_name":"Wesam Al-Sudani","orcid":null},"institutions":[{"id":"https://openalex.org/I196829312","display_name":"La Trobe University","ror":"https://ror.org/01rxfrp27","country_code":"AU","type":"education","lineage":["https://openalex.org/I196829312"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Wesam Al-Sudani","raw_affiliation_strings":["La Trobe University, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"La Trobe University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I196829312"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067815390","display_name":"Amit Gill","orcid":null},"institutions":[{"id":"https://openalex.org/I196829312","display_name":"La Trobe University","ror":"https://ror.org/01rxfrp27","country_code":"AU","type":"education","lineage":["https://openalex.org/I196829312"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Amit Gill","raw_affiliation_strings":["La Trobe University, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"La Trobe University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I196829312"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100369763","display_name":"Chen Li","orcid":"https://orcid.org/0000-0001-6249-8957"},"institutions":[{"id":"https://openalex.org/I196829312","display_name":"La Trobe University","ror":"https://ror.org/01rxfrp27","country_code":"AU","type":"education","lineage":["https://openalex.org/I196829312"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Chen Li","raw_affiliation_strings":["La Trobe University, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"La Trobe University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I196829312"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026581852","display_name":"Jidong Wang","orcid":"https://orcid.org/0000-0003-3025-9358"},"institutions":[{"id":"https://openalex.org/I82951845","display_name":"RMIT University","ror":"https://ror.org/04ttjf776","country_code":"AU","type":"education","lineage":["https://openalex.org/I82951845"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Jidong Wang","raw_affiliation_strings":["RMIT University, Melbourne, VIC, Australia",", RMIT University, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"RMIT University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I82951845"]},{"raw_affiliation_string":", RMIT University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I82951845"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021132447","display_name":"Fei Liu","orcid":"https://orcid.org/0000-0002-0245-0799"},"institutions":[{"id":"https://openalex.org/I196829312","display_name":"La Trobe University","ror":"https://ror.org/01rxfrp27","country_code":"AU","type":"education","lineage":["https://openalex.org/I196829312"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Fei Liu","raw_affiliation_strings":["La Trobe University, Melbourne, VIC, Australia"],"affiliations":[{"raw_affiliation_string":"La Trobe University, Melbourne, VIC, Australia","institution_ids":["https://openalex.org/I196829312"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5020712397"],"corresponding_institution_ids":["https://openalex.org/I196829312"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.12791542,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"63","last_page":"68"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11800","display_name":"User Authentication and Security Systems","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T11800","display_name":"User Authentication and Security Systems","score":1.0,"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"}},{"id":"https://openalex.org/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.9957000017166138,"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/T11241","display_name":"Advanced Malware Detection Techniques","score":0.9944999814033508,"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/captcha","display_name":"CAPTCHA","score":0.9679750204086304},{"id":"https://openalex.org/keywords/turing-test","display_name":"Turing test","score":0.9390175938606262},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7620111703872681},{"id":"https://openalex.org/keywords/turing","display_name":"Turing","score":0.7188268899917603},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.45969051122665405},{"id":"https://openalex.org/keywords/test","display_name":"Test (biology)","score":0.4535766839981079},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.342820942401886},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.11838099360466003}],"concepts":[{"id":"https://openalex.org/C163339463","wikidata":"https://www.wikidata.org/wiki/Q484598","display_name":"CAPTCHA","level":2,"score":0.9679750204086304},{"id":"https://openalex.org/C577917","wikidata":"https://www.wikidata.org/wiki/Q189223","display_name":"Turing test","level":2,"score":0.9390175938606262},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7620111703872681},{"id":"https://openalex.org/C9870796","wikidata":"https://www.wikidata.org/wiki/Q490481","display_name":"Turing","level":2,"score":0.7188268899917603},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.45969051122665405},{"id":"https://openalex.org/C2777267654","wikidata":"https://www.wikidata.org/wiki/Q3519023","display_name":"Test (biology)","level":2,"score":0.4535766839981079},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.342820942401886},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.11838099360466003},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1145/1971519.1971533","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1971519.1971533","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th International Conference on Advances in Mobile Computing and Multimedia","raw_type":"proceedings-article"},{"id":"pmh:oai:researchbank.rmit.edu.au:rmit:11011","is_oa":false,"landing_page_url":"http://researchbank.rmit.edu.au/view/rmit:11011","pdf_url":null,"source":{"id":"https://openalex.org/S4306402074","display_name":"RMIT Research Repository (RMIT University Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I82951845","host_organization_name":"RMIT University","host_organization_lineage":["https://openalex.org/I82951845"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference Paper"},{"id":"pmh:oai:alma61RMIT.INST:11246481600001341","is_oa":false,"landing_page_url":"https://researchrepository.rmit.edu.au/esploro/outputs/conferenceProceeding/Protection-through-multimedia-CAPTCHAS/9921857968601341","pdf_url":null,"source":{"id":"https://openalex.org/S4306402074","display_name":"RMIT Research Repository (RMIT University Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I82951845","host_organization_name":"RMIT University","host_organization_lineage":["https://openalex.org/I82951845"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"text"},{"id":"pmh:oai:figshare.com:article/27375096","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"}],"best_oa_location":{"id":"pmh:oai:figshare.com:article/27375096","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},"sustainable_development_goals":[{"score":0.49000000953674316,"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1482696268","https://openalex.org/W1583950051","https://openalex.org/W1603565383","https://openalex.org/W1911833395","https://openalex.org/W1974008446","https://openalex.org/W2100140302","https://openalex.org/W2114267717","https://openalex.org/W2142069714","https://openalex.org/W2155793192"],"related_works":["https://openalex.org/W4312500010","https://openalex.org/W2086464669","https://openalex.org/W2313567600","https://openalex.org/W2965099444","https://openalex.org/W1999034556","https://openalex.org/W1998496804","https://openalex.org/W2910114670","https://openalex.org/W1991242267","https://openalex.org/W3144744384","https://openalex.org/W33990236"],"abstract_inverted_index":{"CAPTCHAS":[0,87,102],"which":[1,25,58,63,95],"are":[2,17],"well":[3],"known":[4],"as":[5],"complete":[6],"automatic":[7],"public":[8],"Turing":[9,23],"test":[10],"to":[11,44,56,103],"tell":[12],"computers":[13],"and":[14,36,62],"humans":[15],"apart":[16],"a":[18,27,34,72,90,105],"modern":[19],"implementation":[20],"of":[21,29,31,40,50,83,100],"the":[22,41,48,51,53,68,85,98],"test,":[24],"ask":[26],"series":[28],"questions":[30],"two":[32],"players:":[33],"human":[35,61],"computer.":[37,73],"But":[38],"both":[39],"players":[42],"pretend":[43],"be":[45],"human.":[46],"On":[47],"bases":[49],"answers":[52],"judge":[54,69],"has":[55,96],"decide":[57],"one":[59,64],"is":[60,65,71],"computer,":[66],"but":[67],"itself":[70],"In":[74],"this":[75],"article,":[76],"we":[77,88],"review":[78],"current":[79,86],"CAPTCHAs.":[80],"After":[81],"analysis":[82],"all":[84,97],"propose":[89],"new":[91],"3-D":[92],"AI":[93],"CATCHA":[94],"strengths":[99],"existing":[101],"provide":[104],"better":[106],"security":[107],"alternative":[108],"for":[109],"ecommerce.":[110]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
