{"updated":"2025-01-19T17:38:19.841625+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00211901","sets":["1164:1579:10482:10619"]},"path":["10619"],"owner":"44499","recid":"211901","title":["Ties to max magnitude丸めモードを利用した二段階丸め誤差の防止"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-07-13"},"_buckets":{"deposit":"978bb453-866f-4ff5-b80e-39f365c1083b"},"_deposit":{"id":"211901","pid":{"type":"depid","value":"211901","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Ties to max magnitude丸めモードを利用した二段階丸め誤差の防止","author_link":["539333","539331","539332"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Ties to max magnitude丸めモードを利用した二段階丸め誤差の防止"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"命令セット方式・スケジューリング","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-07-13","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院情報理工学系研究科"},{"subitem_text_value":"東京大学大学院情報理工学系研究科"},{"subitem_text_value":"東京大学大学院情報理工学系研究科"}]},"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/211901/files/IPSJ-ARC21245003.pdf","label":"IPSJ-ARC21245003.pdf"},"date":[{"dateType":"Available","dateValue":"2023-07-13"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ARC21245003.pdf","filesize":[{"value":"1.0 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":"16"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"dbad943e-468b-479f-a5f8-17f3e5b9457e","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小泉, 透"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"入江, 英嗣"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"坂井, 修一"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10096105","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_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8574","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"浮動小数点数計算において，結果を一旦中間精度に丸めてから最終精度に丸める「二段階丸め」は，直接最終精度に丸めた場合と異なる結果を生むことがある．この問題を回避するアルゴリズムは知られているものの，特殊なハードウェアもしくは多数の浮動小数点数演算が必要である．本研究では，RISC-V の浮動小数点数演算命令で使用可能な丸めモードを組み合わせることで，二段階丸めを行いつつも最近接丸めを保証できるソフトウェアアルゴリズムを提案する．提案アルゴリズムは，既存アルゴリズムと比べて浮動小数点数演算命令を 78% 削減した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"4","bibliographic_titles":[{"bibliographic_title":"研究報告システム・アーキテクチャ（ARC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-07-13","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicVolumeNumber":"2021-ARC-245"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:13:01.156619+00:00","id":211901,"links":{}}