{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00237008","sets":["6504:11678:11684"]},"path":["11684"],"owner":"44499","recid":"237008","title":["時系列データの変化点に基づく自動車の特徴量間のグレンジャー因果分析"],"pubdate":{"attribute_name":"公開日","attribute_value":"2024-03-01"},"_buckets":{"deposit":"6cd43057-06bf-4022-950c-3ac3a58bc7fd"},"_deposit":{"id":"237008","pid":{"type":"depid","value":"237008","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"時系列データの変化点に基づく自動車の特徴量間のグレンジャー因果分析","author_link":["648067","648069","648068"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"時系列データの変化点に基づく自動車の特徴量間のグレンジャー因果分析"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"コンピュータと人間社会","subitem_subject_scheme":"Other"}]},"item_type_id":"22","publish_date":"2024-03-01","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":"電機大"},{"subitem_text_value":"電機大"},{"subitem_text_value":"電機大"}]},"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/237008/files/IPSJ-Z86-6ZK-06.pdf","label":"IPSJ-Z86-6ZK-06.pdf"},"date":[{"dateType":"Available","dateValue":"2024-07-04"}],"format":"application/pdf","filename":"IPSJ-Z86-6ZK-06.pdf","filesize":[{"value":"353.5 kB"}],"mimetype":"application/pdf","accessrole":"open_date","version_id":"7fe7a4fd-f473-47dc-8bde-1f1b47e9583a","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2024 by the Information Processing Society of Japan"}]},"item_22_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"望月, 暉留"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"前野, 航平"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小河, 誠巳"}],"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":"自動車の販売台数予測とシェア率の予測を最終目標として研究を行っている。その前段階として販売台数データのトレンドの変化点検出を行った。本論文の目的は変化点を検出し変化点前後での特徴量の違いを明らかにして、その特徴量間の関係を明確にすることである。その手段としてProphetを用いてトレンドの変化点を検出した。特徴量の関係を観測するためにVAR分析を用いた。特に、VAR分析のグレンジャー因果性と視覚的に特徴量間の関係を把握するためにグラフィカルモデルを用いた。以上の手順で実装した結果として変化点前後での特徴量の違いと特徴量間の関係を視覚的に把握することができた。","subitem_description_type":"Other"}]},"item_22_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"802","bibliographic_titles":[{"bibliographic_title":"第86回全国大会講演論文集"}],"bibliographicPageStart":"801","bibliographicIssueDates":{"bibliographicIssueDate":"2024-03-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicVolumeNumber":"2024"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":237008,"updated":"2025-01-19T09:02:05.777609+00:00","links":{},"created":"2025-01-19T01:39:23.581995+00:00"}