{"id":9787,"created":"2025-01-18T22:44:54.673178+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00009787","sets":["581:599:601"]},"path":["601"],"owner":"1","recid":"9787","title":["証明数と反証数を用いたλ 探索"],"pubdate":{"attribute_name":"公開日","attribute_value":"2007-11-15"},"_buckets":{"deposit":"bf1866a6-8c3d-4bd4-b84e-250a22b687d4"},"_deposit":{"id":"9787","pid":{"type":"depid","value":"9787","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"証明数と反証数を用いたλ 探索","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"証明数と反証数を用いたλ 探索"},{"subitem_title":"λ Search Based on Proof and Disproof Numbers","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"特集：ゲームプログラミング","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2007-11-15","item_2_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":"中央大学研究開発機構"},{"subitem_text_value":"公立はこだて未来大学"},{"subitem_text_value":"東京大学大学院総合文化研究科"},{"subitem_text_value":"東京大学情報基盤センター"},{"subitem_text_value":"アルバータ大学コンピューティング・サイエンス学科"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Future University-Hakodate","subitem_text_language":"en"},{"subitem_text_value":"Center of Research and Development Initiative, Chuo University","subitem_text_language":"en"},{"subitem_text_value":"Future University-Hakodate","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Arts and Sciences, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Information Technology Center, The University of Tokyo","subitem_text_language":"en"},{"subitem_text_value":"Department of Computing Science, University of Alberta","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/9787/files/IPSJ-JNL4811005.pdf"},"date":[{"dateType":"Available","dateValue":"2009-11-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL4811005.pdf","filesize":[{"value":"371.4 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"2f2e9126-8477-48a6-b554-99a2c980cf86","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2007 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"副田, 俊介"},{"creatorName":"美添一樹"},{"creatorName":"岸本, 章宏"},{"creatorName":"金子, 知適"},{"creatorName":"田中, 哲朗"},{"creatorName":"マーティンミュラー"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Shunsuke, Soeda","creatorNameLang":"en"},{"creatorName":"Kazuki, Yoshizoe","creatorNameLang":"en"},{"creatorName":"Akihiro, Kishimoto","creatorNameLang":"en"},{"creatorName":"Tomoyuki, Kaneko","creatorNameLang":"en"},{"creatorName":"Tetsuro, Tanaka","creatorNameLang":"en"},{"creatorName":"Martin, M¨uller","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","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_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"本論文では脅威度と証明数・反証数の双方を利用するdf-pn λ 探索を提案する．脅威度と証明数・反証数は，両者ともAND/OR 木探索を効率的に行うための指標であり，脅威度を利用するλ 探索と，証明数・反証数を利用するdf-pn 探索は，どちらも優れた探索アルゴリズムである．脅威度と証明数・反証数の双方を用いることで，探索をさらに効率的に行うことは自然なアイデアである．脅威度と証明数・反証数の関係を結び付けるために，本論文では各節点ごとに，各脅威度に対応する疑似節点をモデル化する．そのうえで，疑似節点上の証明数・反証数を用いて，元の節点の証明数・反証数を定義することを提案し，それにより探索が制御されることを示す．さらに，性質の異なる複数のゲームを対象に，df-pn λ 探索とdf-pn 探索の性能を比較する実験を行った．その結果，将棋や囲碁においてdf-pn λ 探索はdf-pn 探索よりも性能が良いことを確認した．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"We present the df-pn λ search algorithm that combines threats with proof and disproof numbers. λ search is a promising method based on threats. Df-pn is an efficient algorithm that employs the notion of proof and disproof numbers. However, λ search uses neither proof nor disproof numbers, whereas df-pn incorporates no information on threat levels. Integrating threats with proof and disproof numbers is a natural extension to further enhance the search performance. We introduce pseudo-nodes for various threat levels at each node, to represent a node searched with a specific threat level. Then the proof and disproof numbers of the original node are defined using pseudo-nodes, which provides a model that can be searched with df-pn. We compared df-pn λ with df-pn on games with different properties. The results showed that df-pn λ is better than df-pn in Shogi and Go.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"3462","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"3455","bibliographicIssueDates":{"bibliographicIssueDate":"2007-11-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"11","bibliographicVolumeNumber":"48"}]},"relation_version_is_last":true,"item_2_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"探索"}]},"weko_creator_id":"1"},"updated":"2025-01-23T03:12:37.351717+00:00","links":{}}