{"links":{},"id":2002198,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:02002198","sets":["1164:6757:11881:1747886647018"]},"path":["1747886647018"],"owner":"80578","recid":"2002198","title":["定Q変換に着目した異常検知手法を用いたピアノ演奏の差分検知精度の向上"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-05-30"},"_buckets":{"deposit":"f31c8605-f41b-440f-bbda-10be03edab76"},"_deposit":{"id":"2002198","pid":{"type":"depid","value":"2002198","revision_id":0},"owners":[80578],"status":"published","created_by":80578},"item_title":"定Q変換に着目した異常検知手法を用いたピアノ演奏の差分検知精度の向上","author_link":[],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"定Q変換に着目した異常検知手法を用いたピアノ演奏の差分検知精度の向上","subitem_title_language":"ja"}]},"item_type_id":"4","publish_date":"2025-05-30","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"公立はこだて未来大学"},{"subitem_text_value":"公立はこだて未来大学"},{"subitem_text_value":"NTTコミュニケーションズ株式会社"},{"subitem_text_value":"MPLUSPLUS株式会社"},{"subitem_text_value":"公立はこだて未来大学"},{"subitem_text_value":"公立はこだて未来大学"}]},"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/2002198/files/IPSJ-DCC25040002.pdf","label":"IPSJ-DCC25040002.pdf"},"date":[{"dateType":"Available","dateValue":"2027-05-30"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DCC25040002.pdf","filesize":[{"value":"3.7 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":"50"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"ba57f384-32fa-4e16-970b-5bfdc01892ea","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2025 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"家常,友詩"}]},{"creatorNames":[{"creatorName":"佐々木,理央"}]},{"creatorNames":[{"creatorName":"松井,遼太"}]},{"creatorNames":[{"creatorName":"柳沢,豊"}]},{"creatorNames":[{"creatorName":"渡邉,拓貴"}]},{"creatorNames":[{"creatorName":"竹川,佳成"}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12628338","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":"2188-8868","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本研究の目的は，提案手法である異常検知手法におけるピアノ演奏のミスの検知精度向上である．先行研究では，学習者の演奏と教師の演奏データをメルスペクトログラム画像に変換し，異常検知手法を用いて画像の類似度から演奏の上手さを評価していた．特に高音部において高い検知精度が見られ，低音部における課題があった．そこで本研究では，教師と学習者の演奏データを画像に変換する過程に，打鍵された音が明確に表示されるという特徴を持つ定Q変換を実施し，メルスペクトログラムと定Q変換のOR条件をとって結果の比較をした．4つのフレーズを対象にメルスペクトログラムと定Q変換で実験を行った結果，検知精度は0.03改善された．特に2つのフレーズに関しては，低音部における定Q変換での検知精度はメルスペクトログラムより高くなった．定Q変換の実施によって低音部の検知精度向上を図り，ミスの検知精度を向上させることができた．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"8","bibliographic_titles":[{"bibliographic_title":"研究報告デジタルコンテンツクリエーション（DCC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2025-05-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicVolumeNumber":"2025-DCC-40"}]},"relation_version_is_last":true,"weko_creator_id":"80578"},"created":"2025-05-22T04:16:53.623781+00:00","updated":"2025-05-22T04:24:51.964810+00:00"}