{"id":212230,"updated":"2025-01-19T17:33:59.874731+00:00","links":{},"created":"2025-01-19T01:13:13.537852+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00212230","sets":["934:989:10456:10630"]},"path":["10630"],"owner":"44499","recid":"212230","title":["機械学習による中古車落札価格の要因分析および割安評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-08-10"},"_buckets":{"deposit":"ba9515dc-2204-4203-bf44-e9760fd521b6"},"_deposit":{"id":"212230","pid":{"type":"depid","value":"212230","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"機械学習による中古車落札価格の要因分析および割安評価","author_link":["541012","541011","541007","541013","541010","541009","541006","541008"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"機械学習による中古車落札価格の要因分析および割安評価"},{"subitem_title":"Factor Analysis and Undervalued Prices in Used Car Auctions by Machine Learning","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[事例紹介論文] 価格査定，機械学習，データサイエンス，AIの説明可能性","subitem_subject_scheme":"Other"}]},"item_type_id":"3","publish_date":"2021-08-10","item_3_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"茨城大学大学院理工学研究科"},{"subitem_text_value":"株式会社KINTO"},{"subitem_text_value":"株式会社プロトコーポレーション"},{"subitem_text_value":"茨城大学大学院理工学研究科"}]},"item_3_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Science and Engineering, Ibaraki University","subitem_text_language":"en"},{"subitem_text_value":"KINTO Corporation","subitem_text_language":"en"},{"subitem_text_value":"PROTO Corporation","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Science and Engineering, Ibaraki University","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/212230/files/IPSJ-TOM1403005.pdf","label":"IPSJ-TOM1403005.pdf"},"date":[{"dateType":"Available","dateValue":"2023-08-10"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-TOM1403005.pdf","filesize":[{"value":"8.0 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":"17"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"1b069620-faa9-405d-9586-d15ac4ac9e7d","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Information Processing Society of Japan"}]},"item_3_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"工藤, 大輝"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"福西, 亮介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"黛, 広樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鈴木, 智也"}],"nameIdentifiers":[{}]}]},"item_3_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Daiki, Kudo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ryosuke, Hukunishi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hiroki, Mayuzumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tomoya, Suzuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_3_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11464803","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_3_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7780","subitem_source_identifier_type":"ISSN"}]},"item_3_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本研究では，全国のオートオークションで落札された中古車ビッグデータを対象として，重回帰式ベースのヘドニックアプローチと非線形モデルのXGBoostに基づいて個車価格推定モデルを構築し，正答率と各特徴量の重要度やポジネガ極性について比較分析した．中古車の各特徴量は非線形関係を有していることからXGBoostの正答率が良好であり，重回帰式のみではとらえられない特徴量の重要性を確認した．またオートオークション会場は全国各地にあり，地域や規模に応じて落札価格に「割安」や「割高」などの特徴が生じる可能性がある．そこで非線形な個車価格推定モデルを利用することで割安な落札価格を検出し，裁定取引などへの応用可能性を紹介する．","subitem_description_type":"Other"}]},"item_3_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"We estimated used-car prices contracted in auto-auction markets by using the hedonic approach based on a linear regression and the XGBoost model based on a nonlinear machine learning, and evaluated their accuracies and the importance and polarity of explanatory variables. As a result, we confirmed some advantages of using machine learning because each used car has unique properties and these features are nonlinearly interacted. Moreover, we applied our price evaluation model to detect undervalued prices as arbitrage opportunities caused by the location and scale of auto-auction markets.","subitem_description_type":"Other"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"50","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌数理モデル化と応用（TOM）"}],"bibliographicPageStart":"39","bibliographicIssueDates":{"bibliographicIssueDate":"2021-08-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicVolumeNumber":"14"}]},"relation_version_is_last":true,"weko_creator_id":"44499"}}