{"created":"2025-01-19T01:29:06.610569+00:00","updated":"2025-01-19T11:25:55.068485+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00229757","sets":["6504:11436:11439"]},"path":["11439"],"owner":"44499","recid":"229757","title":["複数ファイルから生成した消失訂正符号によるデータ保護"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-02-16"},"_buckets":{"deposit":"588752a6-ddcd-410e-bab2-8aa71b65d496"},"_deposit":{"id":"229757","pid":{"type":"depid","value":"229757","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"複数ファイルから生成した消失訂正符号によるデータ保護","author_link":["618032","618034","618033"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"複数ファイルから生成した消失訂正符号によるデータ保護"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"データとウェブ","subitem_subject_scheme":"Other"}]},"item_type_id":"22","publish_date":"2023-02-16","item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_22_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"香川大"},{"subitem_text_value":"香川大"},{"subitem_text_value":"香川大"}]},"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/229757/files/IPSJ-Z85-1N-08.pdf","label":"IPSJ-Z85-1N-08.pdf"},"date":[{"dateType":"Available","dateValue":"2023-11-17"}],"format":"application/pdf","filename":"IPSJ-Z85-1N-08.pdf","filesize":[{"value":"414.0 kB"}],"mimetype":"application/pdf","accessrole":"open_date","version_id":"8860f5da-f0c3-49ba-b4c2-40d685b7e7f6","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Information Processing Society of Japan"}]},"item_22_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山田, 純平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"植田, 悠斗"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"亀井, 仁志"}],"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_22_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00349328","subitem_source_identifier_type":"NCID"}]},"item_22_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"オブジェクトストレージのデータ保護に，Erasure Coding（EC）が用いられている．元のデータを複数のチャンクに分割し，ECを用いて復元情報を有するパリティを付加する．一部のチャンクが失われても，残りのチャンクとパリティから元のデータを復元できる．しかし，復元に必要な数のチャンクやパリティを得られず，一部のチャンクのみ得られる場合がある．従って，得られたチャンクから元のデータの一部を復元できることが課題となる．提案方式は，複数ファイルを大きなデータとして捉え，個々のファイルをチャンクとする．これにより，チャンクから個々のファイル復元が可能となる．本稿は，提案方式の実装と有効性を述べる．","subitem_description_type":"Other"}]},"item_22_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"464","bibliographic_titles":[{"bibliographic_title":"第85回全国大会講演論文集"}],"bibliographicPageStart":"463","bibliographicIssueDates":{"bibliographicIssueDate":"2023-02-16","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2023"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":229757,"links":{}}