{"updated":"2025-01-21T12:23:31.136581+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00098616","sets":["1164:4088:7458:7459"]},"path":["7459"],"owner":"11","recid":"98616","title":["同一の送受信アドレスを持つ大量メールの効率判定手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-02-20"},"_buckets":{"deposit":"1ef26368-42aa-49bc-a132-96762e3303e0"},"_deposit":{"id":"98616","pid":{"type":"depid","value":"98616","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"同一の送受信アドレスを持つ大量メールの効率判定手法","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"同一の送受信アドレスを持つ大量メールの効率判定手法"},{"subitem_title":"An Efficient Judging Method of a Large Amount of E-mails Having the Same Sender and Recipient Addresses","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"認証とセキュリティ","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2014-02-20","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"京都大学情報学研究科"},{"subitem_text_value":"京都大学情報学研究科"},{"subitem_text_value":"京都大学情報学研究科"},{"subitem_text_value":"京都大学学術情報メディアセンター"},{"subitem_text_value":"京都大学学術情報メディアセンター"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Informatics, Kyoto University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Informatics, Kyoto University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Informatics, Kyoto University","subitem_text_language":"en"},{"subitem_text_value":"Academic Center for Computing and Media Studies, Kyoto University","subitem_text_language":"en"},{"subitem_text_value":"Academic Center for Computing and Media Studies, Kyoto 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/98616/files/IPSJ-IOT14024011.pdf"},"date":[{"dateType":"Available","dateValue":"2100-01-01"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IOT14024011.pdf","filesize":[{"value":"727.0 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"43"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"6eeb2c14-9ec2-497e-92be-925d8c521335","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2014 by the Institute of Electronics, Information and Communication Engineers\nThis SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"津崎, 善晴"},{"creatorName":"松本, 亮介"},{"creatorName":"小谷, 大祐"},{"creatorName":"宮崎, 修一"},{"creatorName":"岡部, 寿男"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yoshiharu, Tsuzaki","creatorNameLang":"en"},{"creatorName":"Ryosuke, Matsumoto","creatorNameLang":"en"},{"creatorName":"Daisuke, Kotani","creatorNameLang":"en"},{"creatorName":"Shuichi, Miyazaki","creatorNameLang":"en"},{"creatorName":"Yasuo, Okabe","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12326962","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":"電子メールが広く普及し，メールが宛先に遅延なく配送されることが望まれてきている．意図しない大量メールが短時間にメール中継システムに送信されることは珍しくない．これらのメールはしばしば，システムの負荷を超過させ，ネットワーク帯域を占有する原因となり，このような状況ではメール配送に重大な遅延をもたらす．本稿ではハシシュテーブルで管理されたエンベロープ From アドレスとエンベロープ To アドレスの組を用いて効率的に大量のメールを検知するメール中継システムを提案する．提案システムではエンベロープ From アドレスとエンベロープ Ｔo アドレスの組数を数え，もし，ある短い期間で特定の組の配送数が事前に設定した閾値を超えた場合，これらのペアが大量メールの原因とみなす．エンベロープ From アドレスとエンベロープ To アドレスを管理するハッシュテーブルの肥大化を低減するために複数のハッシュテーブルを使用し，これらのハッシュテーブルを時間毎に分け，ある決まった間隔でエントリーを空にする．また，事前に大量のメールの判断するためにブロックリストも準備する．最終的にシステムを実装し評価する．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"With the wide use of e-mail, it has become commonly expected that e-mails are delivered to recipients immediately. It is not rare that a huge amount of e-mails are delivered to a mail transfer system in a very short time unintentionally. Such e-mails sometimes causes excessive load to the system and to increase traffic of network, and e-mails are delivered with serious delay in such situations. We propose a mail transfer system to detect efficiently such e-mail with each pair of envelope-from and envelope-to address managed by a hash table. In proposed system, the number of each pair envelope-from and envelope-to address is counted, and if the number of the delivery including a specific pair (envelope-from, envelope-to address) during a short period exceeds a pre-specified threshold, we regard this pair as a cause of a huge amount of e-mails. We prepare multiple hash tables which managed envelope-from and envelope-to address to prevent an increase in scale of the hash table, and we divide such hash tables every time and empty all entries at fixed intervals. We also prepare for the blocklist to judge a huge amount of e-mails beforehand. We implement the proposed system and evaluate it.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2014-02-20","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"11","bibliographicVolumeNumber":"2014-IOT-24"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:44:49.756089+00:00","id":98616,"links":{}}