{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:20:59Z","timestamp":1750306859489,"version":"3.41.0"},"publisher-location":"New York, NY, USA","reference-count":12,"publisher":"ACM","license":[{"start":{"date-parts":[[2013,12,2]],"date-time":"2013-12-02T00:00:00Z","timestamp":1385942400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2013,12,2]]},"DOI":"10.1145\/2539150.2539221","type":"proceedings-article","created":{"date-parts":[[2014,2,11]],"date-time":"2014-02-11T14:40:08Z","timestamp":1392129608000},"page":"550-554","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["A User-friendly Image-Text Fusion CAPTCHA for Secure Web Services"],"prefix":"10.1145","author":[{"given":"YeonChan","family":"Ahn","sequence":"first","affiliation":[{"name":"Department of Information &amp; Communication Engineering, Inha University, Incheon 402-751, Korea +82-32-860-7450"}]},{"given":"Namsoo","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Information &amp; Communication Engineering, Inha University, Incheon 402-751, Korea +82-32-860-7450"}]},{"given":"Yoo-Sung","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Information &amp; Communication Engineering, Inha University, Incheon 402-751, Korea +82-32-860-7450"}]}],"member":"320","published-online":{"date-parts":[[2013,12,2]]},"reference":[{"key":"e_1_3_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1145\/966389.966390"},{"key":"e_1_3_2_1_2_1","doi-asserted-by":"crossref","unstructured":"Yan J. and El-Ahmad A. S. 2008. A Low-cost Attack on a Microsoft CAPTCHA. Research Paper. School of Computing Science Newcastle University UK.  Yan J. and El-Ahmad A. S. 2008. A Low-cost Attack on a Microsoft CAPTCHA. Research Paper. School of Computing Science Newcastle University UK.","DOI":"10.1145\/1455770.1455839"},{"volume":"17","volume-title":"Advances in Neural Information Processing Systems","author":"Chellapilla K.","key":"e_1_3_2_1_3_1"},{"volume-title":"Proceedings of the 7th International Information Security Conference. 268--279","author":"Chew M.","key":"e_1_3_2_1_4_1"},{"key":"e_1_3_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1145\/1315245.1315291"},{"key":"e_1_3_2_1_6_1","unstructured":"Warner O. THEPCSpy: KittenAuth. Retrieved 2011 from http:\/\/www.thepcspy.com\/.  Warner O. THEPCSpy: KittenAuth. Retrieved 2011 from http:\/\/www.thepcspy.com\/."},{"key":"e_1_3_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1145\/1101149.1101218"},{"key":"e_1_3_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.1145\/1866307.1866329"},{"key":"e_1_3_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1145\/957013.957075"},{"key":"e_1_3_2_1_10_1","unstructured":"Google Mail Service. https:\/\/mail.google.com\/.  Google Mail Service. https:\/\/mail.google.com\/."},{"key":"e_1_3_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1145\/1455770.1455838"},{"key":"e_1_3_2_1_12_1","first-page":"1107","article-title":"Matching words and pictures","volume":"3","author":"Barnard K.","year":"2002","journal-title":"Machine Learning Research Journal"}],"event":{"name":"IIWAS '13: The 15th International Conference on Information Integration and Web-based Applications & Services","sponsor":["@WAS International Organization of Information Integration and Web-based Applications and Services"],"location":"Vienna Austria","acronym":"IIWAS '13"},"container-title":["Proceedings of International Conference on Information Integration and Web-based Applications &amp; Services"],"original-title":[],"link":[{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2539150.2539221","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.1145\/2539150.2539221","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T08:10:32Z","timestamp":1750234232000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.1145\/2539150.2539221"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,12,2]]},"references-count":12,"alternative-id":["10.1145\/2539150.2539221","10.1145\/2539150"],"URL":"https:\/\/doi.org\/10.1145\/2539150.2539221","relation":{},"subject":[],"published":{"date-parts":[[2013,12,2]]},"assertion":[{"value":"2013-12-02","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}