{"links":{},"id":104752,"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00104752","sets":["6504:7684:7690"]},"path":["7690"],"owner":"6748","recid":"104752","title":["AAC圧縮楽曲データに対するジャンル分類手法"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-03-11"},"_buckets":{"deposit":"5e8a5c4c-a47c-4ffd-ab03-fe8e2e2f3d89"},"_deposit":{"id":"104752","pid":{"type":"depid","value":"104752","revision_id":0},"owners":[6748],"status":"published","created_by":6748},"item_title":"AAC圧縮楽曲データに対するジャンル分類手法","author_link":["5462","5463"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"AAC圧縮楽曲データに対するジャンル分類手法"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"人工知能と認知科学","subitem_subject_scheme":"Other"}]},"item_type_id":"22","publish_date":"2014-03-11","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":"都立産業技術高専"},{"subitem_text_value":"都立産業技術高専"}]},"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/104752/files/IPSJ-Z76-6R-5.pdf"},"date":[{"dateType":"Available","dateValue":"2014-10-02"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-Z76-6R-5.pdf","filesize":[{"value":"100.0 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"214fcdf9-65bb-4a58-b6d3-0cb65fee31d5","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2014 by the Information Processing Society of Japan"}]},"item_22_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"湯澤幸一朗"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小早川倫広"}],"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":"現在、インターネットなどを利用した楽曲配信サービスによって、簡単に大量に楽曲を入手することができ、扱われる楽曲データは圧縮された楽曲データとなっている。本研究の目的は、AAC（Advanced Audio Coding）圧縮楽曲データに対して、楽曲の内容に基づくジャンル分類を行う。そのために、AAC圧縮楽曲データのビットストリームに格納されているMDCT係数を抽出する。MDCT係数からサブバンド毎にエネルギーを算出し、サブバンドエネルギーに対して離散ウェーブレット変換を行うことで特徴量を抽出する。抽出した特徴量を用いて線形判別分析によりジャンル分類を行う。その結果、10ジャンル1498曲のデータセットに対して、80.31％の平均正答率を得ることができた。","subitem_description_type":"Other"}]},"item_22_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"386","bibliographic_titles":[{"bibliographic_title":"第76回全国大会講演論文集"}],"bibliographicPageStart":"385","bibliographicIssueDates":{"bibliographicIssueDate":"2014-03-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2014"}]},"relation_version_is_last":true,"weko_creator_id":"6748"},"created":"2025-01-18T23:48:45.037168+00:00","updated":"2025-01-21T10:15:10.832805+00:00"}