{"updated":"2025-01-21T20:08:47.233055+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00079884","sets":["6164:6165:6640:6641"]},"path":["6641"],"owner":"10","recid":"79884","title":["アモーダル補完を利用した動画CAPTCHAの提案"],"pubdate":{"attribute_name":"公開日","attribute_value":"2011-06-30"},"_buckets":{"deposit":"317e189a-adb1-4f96-9426-303d02810851"},"_deposit":{"id":"79884","pid":{"type":"depid","value":"79884","revision_id":0},"owners":[10],"status":"published","created_by":10},"item_title":"アモーダル補完を利用した動画CAPTCHAの提案","author_link":["0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アモーダル補完を利用した動画CAPTCHAの提案"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"WEB サービス","subitem_subject_scheme":"Other"}]},"item_type_id":"18","publish_date":"2011-06-30","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_18_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京工科大学コンピュータサイエンス学部"},{"subitem_text_value":"東京工科大学コンピュータサイエンス学部"},{"subitem_text_value":"東京工科大学コンピュータサイエンス学部"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/79884/files/IPSJ-DICOMO2011203.pdf"},"date":[{"dateType":"Available","dateValue":"2011-06-30"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DICOMO2011203.pdf","filesize":[{"value":"803.5 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"5"},{"tax":["include_tax"],"price":"0","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"3b6d81e2-9196-4945-9221-88c3d2eb8f1f","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2011 by the Information Processing Society of Japan"}]},"item_18_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"森拓真"},{"creatorName":"宇田隆哉"},{"creatorName":"菊池眞之"}],"nameIdentifiers":[{}]}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_5794","resourcetype":"conference paper"}]},"item_18_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，ボットプログラムよるWEBサービスのアカウントが自動で大量取得され悪用されることが大きな問題となっている．これを防ぐ手法としてCAPTCHAを導入するのが一般的となっている．CAPTCHAとは，人間と機械を判別するための認証テストである．現在で最も多く利用されている方式は，文字列CAPTCHAであるが，OCR技術の進歩により高い確率で解析されてしまうことがわかっている．また，文字に歪みを加えて読みにくくしたCAPTCHAも提案されているが，ユーザより機械の正解率のほうが高いというジレンマを生み出している．これに対し，本稿では，人間の視覚補完能力であるアモーダル補完を動画に応用することで，人間のみ正解できる実用的なCAPTCHAを提案する．","subitem_description_type":"Other"}]},"item_18_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"1525","bibliographic_titles":[{"bibliographic_title":"マルチメディア、分散協調とモバイルシンポジウム2011論文集"}],"bibliographicPageStart":"1518","bibliographicIssueDates":{"bibliographicIssueDate":"2011-06-30","bibliographicIssueDateType":"Issued"},"bibliographicVolumeNumber":"2011"}]},"relation_version_is_last":true,"item_18_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"WEBサービス"}]},"weko_creator_id":"10"},"created":"2025-01-18T23:34:29.056878+00:00","id":79884,"links":{}}