{"id":"https://openalex.org/W2011650305","doi":"https://doi.org/10.1145/1358628.1358917","title":"Assocaptcha","display_name":"Assocaptcha","publication_year":2008,"publication_date":"2008-04-05","ids":{"openalex":"https://openalex.org/W2011650305","doi":"https://doi.org/10.1145/1358628.1358917","mag":"2011650305"},"language":"en","primary_location":{"id":"doi:10.1145/1358628.1358917","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1358628.1358917","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"CHI '08 Extended Abstracts on Human Factors in Computing Systems","raw_type":"proceedings-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/A5052429449","display_name":"Chinmay Kulkarni","orcid":"https://orcid.org/0000-0003-3363-2576"},"institutions":[{"id":"https://openalex.org/I74796645","display_name":"Birla Institute of Technology and Science, Pilani","ror":"https://ror.org/001p3jz28","country_code":"IN","type":"education","lineage":["https://openalex.org/I74796645"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Chinmay Eishan Kulkarni","raw_affiliation_strings":["BITS Pilani, Pilani, India"],"affiliations":[{"raw_affiliation_string":"BITS Pilani, Pilani, India","institution_ids":["https://openalex.org/I74796645"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5052429449"],"corresponding_institution_ids":["https://openalex.org/I74796645"],"apc_list":null,"apc_paid":null,"fwci":0.846,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.83178923,"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":"3705","last_page":"3710"},"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/T11241","display_name":"Advanced Malware Detection Techniques","score":0.989799976348877,"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"}},{"id":"https://openalex.org/T12553","display_name":"Psychedelics and Drug Studies","score":0.9538000226020813,"subfield":{"id":"https://openalex.org/subfields/3203","display_name":"Clinical Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/captcha","display_name":"CAPTCHA","score":0.9770205020904541},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7532020807266235},{"id":"https://openalex.org/keywords/mathematical-proof","display_name":"Mathematical proof","score":0.6858724355697632},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.5421280860900879},{"id":"https://openalex.org/keywords/word","display_name":"Word (group theory)","score":0.47647473216056824},{"id":"https://openalex.org/keywords/robot","display_name":"Robot","score":0.46137842535972595},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.426771342754364},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1034039855003357}],"concepts":[{"id":"https://openalex.org/C163339463","wikidata":"https://www.wikidata.org/wiki/Q484598","display_name":"CAPTCHA","level":2,"score":0.9770205020904541},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7532020807266235},{"id":"https://openalex.org/C108710211","wikidata":"https://www.wikidata.org/wiki/Q11538","display_name":"Mathematical proof","level":2,"score":0.6858724355697632},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.5421280860900879},{"id":"https://openalex.org/C90805587","wikidata":"https://www.wikidata.org/wiki/Q10944557","display_name":"Word (group theory)","level":2,"score":0.47647473216056824},{"id":"https://openalex.org/C90509273","wikidata":"https://www.wikidata.org/wiki/Q11012","display_name":"Robot","level":2,"score":0.46137842535972595},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.426771342754364},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1034039855003357},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1358628.1358917","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1358628.1358917","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"CHI '08 Extended Abstracts on Human Factors in Computing Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2015824828","https://openalex.org/W2054533332","https://openalex.org/W2091384152","https://openalex.org/W2099256741","https://openalex.org/W2140257942","https://openalex.org/W2147019420","https://openalex.org/W2329888568","https://openalex.org/W4245773085"],"related_works":["https://openalex.org/W3134776999","https://openalex.org/W1975364925","https://openalex.org/W2064097623","https://openalex.org/W1966530388","https://openalex.org/W2566963304","https://openalex.org/W2028308373","https://openalex.org/W2111502540","https://openalex.org/W1502766620","https://openalex.org/W2770704788","https://openalex.org/W3133610743"],"abstract_inverted_index":{"CAPTCHAs":[0,16,32],"are":[1,20,27],"challenge-response":[2],"tests":[3],"to":[4,24,59],"verify":[5],"that":[6,19],"the":[7,47],"user":[8],"is":[9],"a":[10,14],"human":[11,40,51],"(and":[12],"not":[13],"program/robot).":[15],"use":[17],"problems":[18],"trivial":[21],"for":[22,29],"humans":[23],"solve,":[25],"but":[26],"hard":[28],"computers.":[30],"Unfortunately,":[31],"have":[33],"focused":[34],"only":[35],"on":[36],"one":[37],"aspect":[38],"of":[39,49],"ability:":[41],"image/word":[42],"recognition.":[43],"This":[44],"paper":[45],"explores":[46],"usage":[48],"other":[50],"abilities:":[52],"particularly,":[53],"finding":[54],"associations":[55],"between":[56],"related":[57],"concepts;":[58],"design":[60],"secure,":[61],"human-friendly":[62],"Human":[63],"Interaction":[64],"Proofs":[65],"(HIPs)":[66]},"counts_by_year":[{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2016-06-24T00:00:00"}
