{"created":"2025-01-19T01:41:16.908684+00:00","updated":"2025-01-19T08:40:03.270619+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00238197","sets":["1164:5064:11558:11743"]},"path":["11743"],"owner":"44499","recid":"238197","title":["音楽生成における時刻と音高相対性の重要性"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-08-19"},"_buckets":{"deposit":"3c991a87-c5ab-48da-8b68-ea96845d42b3"},"_deposit":{"id":"238197","pid":{"type":"depid","value":"238197","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"音楽生成における時刻と音高相対性の重要性","author_link":["652100","652101","652099"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"音楽生成における時刻と音高相対性の重要性"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"音楽分析","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2024-08-19","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"京都大学"},{"subitem_text_value":"京都大学"},{"subitem_text_value":"九州大学"}]},"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/238197/files/IPSJ-MUS24141003.pdf","label":"IPSJ-MUS24141003.pdf"},"date":[{"dateType":"Available","dateValue":"2026-08-19"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-MUS24141003.pdf","filesize":[{"value":"1.9 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":"21"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"d08ad3ce-5a4d-4c33-8a08-f70d251656b3","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"稲葉, 達郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉井, 和佳"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中村, 栄太"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10438388","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":"2188-8752","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本稿では，音楽生成において Transformer を効果的に利用する方法について実験的調査を行う．通常，Transformer に基づく音楽生成では，楽譜をイベントあるいは音符を基本単位とするトークン系列に変換して処理する必要がある．しかし，これらの系列では，音楽の時刻・音高シフトに対する相同性に加え，時刻・音高方向における小節・オクターブ単位の循環性は明示的に表現されていない．そのため，単純に自己注意機構を用いても，音楽特有のリズムやハーモニーの構造を適切に学習できていない可能性がある．この問題に対して，本研究では，時刻と音高の（小節単位とオクターブ単位の）循環性を考慮したトークン間の相対的時刻・音高距離をエンコードし，自己注意機構に用いる手法を提案する．繰り返し構造が比較的明確なポピュラー音楽のデータセット POP909 を用いて，与えられた楽譜の後続部の予測実験を行い，提案法は予測性能を改善することを確認した．また，被験者による主観評価により，生成される音楽の繰り返し構造や一貫性の点で，イベント単位の楽譜表現が Transformer に適していることが分かった．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告音楽情報科学（MUS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2024-08-19","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicVolumeNumber":"2024-MUS-141"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":238197,"links":{}}