{"id":50077,"updated":"2025-01-22T07:48:04.217532+00:00","links":{},"created":"2025-01-18T23:14:56.317351+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00050077","sets":["1164:4402:4403:4404"]},"path":["4404"],"owner":"1","recid":"50077","title":["セキュアキーワード広告オークションプロトコルの提案"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-10-23"},"_buckets":{"deposit":"f5794972-ffbb-493c-8918-3f7be641ae7f"},"_deposit":{"id":"50077","pid":{"type":"depid","value":"50077","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"セキュアキーワード広告オークションプロトコルの提案","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"セキュアキーワード広告オークションプロトコルの提案"},{"subitem_title":"Secure Keyword Auction Protocol","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2008-10-23","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"九州大学大学院システム情報科学研究院／日本学術振興会特別研究員 (RPD)"},{"subitem_text_value":"NTT情報流通プラットフォーム研究所"},{"subitem_text_value":"九州大学大学院システム情報科学研究院"},{"subitem_text_value":"九州大学大学院システム情報科学研究院"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Information Science and Electrical Engineering, Kyushu University / JSPS Research Fellow (RPD)","subitem_text_language":"en"},{"subitem_text_value":"Information Sharing Platform Laboratories, NTT Corporation","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Electrical Engineering, Kyushu University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Information Science and Electrical Engineering, Kyushu University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/50077/files/IPSJ-ICS08153006.pdf"},"date":[{"dateType":"Available","dateValue":"2010-10-23"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ICS08153006.pdf","filesize":[{"value":"1.3 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"25"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"529a5f00-5c4f-4478-bfc2-62a50592e019","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2008 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"櫻井, 祐子"},{"creatorName":"鈴木, 幸太郎"},{"creatorName":"横尾, 真"},{"creatorName":"岩崎, 敦"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yuko, Sakurai","creatorNameLang":"en"},{"creatorName":"Koutarou, Suzuki","creatorNameLang":"en"},{"creatorName":"Makoto, Yokoo","creatorNameLang":"en"},{"creatorName":"Atsushi, Iwasaki","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11135936","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"キーワード広告オークションは，検索エンジンが検索結果に関連する広告の掲載順位を決定するために行われている．広告主は入札額を主催者 （検索エンジン） に表明するが，主催者が入札額を知ることで，オークション結果を不正に操作する可能性が考えられる．従って，入札額を秘匿したまま，オークション結果を決定できることが望ましい．しかしながら，我々は，既存のキーワード広告オークションプロトコルの場合，入札額を秘匿したとしても，主催者は，支払額から入札額を求めることができることを示した．そこで，支払額から入札額が漏洩しにくいオークションプロトコル，及びそれを実現する暗号プロトコルを提案する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"In a keyword auction, each advertiser submits her bid to each keyword and her advertisement is displayed according the result of the auction when users search the keyword on internet search engines. In existing keyword auctions called the GSP, the auctioneer can increase his revenue by knowing all bidding prices. We show, in the GSP, even if bidders submit encrypted bids, the auctioneer can calculate each winner’s bidding price by knowing winners’ payments. Thus, we develop a new privacy preserving keyword auction protocol by improving the payment rule and utilizing cryptographic technologies. ","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"48","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告知能と複雑系（ICS）"}],"bibliographicPageStart":"41","bibliographicIssueDates":{"bibliographicIssueDate":"2008-10-23","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"104(2008-ICS-153)","bibliographicVolumeNumber":"2008"}]},"relation_version_is_last":true,"weko_creator_id":"1"}}