{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00229490","sets":["1164:8228:11154:11405"]},"path":["11405"],"owner":"44499","recid":"229490","title":["言語及び音声の時間特徴に基づく会話からの認知症傾向の判定"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-11-16"},"_buckets":{"deposit":"67cb550c-5d80-4c52-b8c3-8327edc74f3c"},"_deposit":{"id":"229490","pid":{"type":"depid","value":"229490","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"言語及び音声の時間特徴に基づく会話からの認知症傾向の判定","author_link":["617190","617189"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"言語及び音声の時間特徴に基づく会話からの認知症傾向の判定"},{"subitem_title":"Detection of Dementia Tendency from Conversation Based on Linguistic and Time Features of Speech","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"認知症の状態評価","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2023-11-16","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"現在，電気通信大学大学院情報理工学研究科"},{"subitem_text_value":"現在，電気通信大学大学院情報理工学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Presently with The University of Electro-Communications","subitem_text_language":"en"},{"subitem_text_value":"Presently with The University of Electro-Communications","subitem_text_language":"en"}]},"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/229490/files/IPSJ-ASD23028003.pdf","label":"IPSJ-ASD23028003.pdf"},"date":[{"dateType":"Available","dateValue":"2025-11-16"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-ASD23028003.pdf","filesize":[{"value":"1.3 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":"49"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"afcdf638-22aa-434f-a4cd-a42615e924cf","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2023 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"曽我部, 博司"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"沼尾, 雅之"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1271737X","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":"2189-4450","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"現在，認知症の検査方法として臨床心理士や医師による神経心理学的検査や MRI 検査が行われているが，医療リソースの圧迫や患者への侵襲性の高さが問題となっている．会話から認知症の自動検出が可能となれば，医療機関の負担軽減や侵襲性の低いスクリーニングが実現できる．そこで本稿では，対照群付き高齢者コーパスから代名詞割合などの言語特徴量及び無音時間割合などの時間特徴量を抽出し，認知症を識別する機械学習モデルを構築した．モデルにはランダムフォレスト (RF)，サポートベクターマシン (SVM)，ロジスティック回帰 (LR) を使用し，(I) 全ての特徴量を使用，(II) ジニ不純度に基づく特徴量選択，(III) 主成分分析＋ジニ不純度に基づく特徴量選択，といった 3 つの場合におけるモデルの精度を AUC により比較した．その結果 (III) にて RF を用いて構築したモデルの AUC は 0.91 となり，先行研究と比較して高い精度を示した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告高齢社会デザイン（ASD）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2023-11-16","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicVolumeNumber":"2023-ASD-28"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":229490,"updated":"2025-01-19T11:31:59.761339+00:00","links":{},"created":"2025-01-19T01:28:40.552909+00:00"}