{"updated":"2025-01-21T09:18:36.337554+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00106805","sets":["1164:1867:7468:7732"]},"path":["7732"],"owner":"11","recid":"106805","title":["単語の共起関係に基づく機械学習による文書分類"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-11-11"},"_buckets":{"deposit":"f87712c6-348b-487f-b26d-393cbc20b02a"},"_deposit":{"id":"106805","pid":{"type":"depid","value":"106805","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"単語の共起関係に基づく機械学習による文書分類","author_link":["13981","13982"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"単語の共起関係に基づく機械学習による文書分類"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"分類・クラスタリング","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2014-11-11","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"鹿児島大学大学院理工学研究科"},{"subitem_text_value":"鹿児島大学大学院理工学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Science and Engineering, Kagoshima University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Science and Engineering, Kagoshima 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/106805/files/IPSJ-OS14131028.pdf"},"date":[{"dateType":"Available","dateValue":"2016-11-11"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-OS14131028.pdf","filesize":[{"value":"380.8 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":"11"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"3b8ba0a0-532e-45eb-bbb0-85c3b171d1aa","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2014 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"福元伸也"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"渕田孝康"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10444176","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_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"近年，ビッグデータと呼ばれる大規模データから有益な情報を抽出しようとする試みが広く行われており，テキストデータの解析に関する多くの研究がなされている．本研究では，シソーラスの分類語彙表を用いて，単語の特徴ベクトルである共起行列を生成する手法を提案する．出現単語のみによる共起行列を，単語の意味を考慮した分類語に変換することにより，共起行列の次元数が増大するのを抑えることができ，単語の特徴ベクトルをより的確なベクトルとして表現できる．また，得られた共起行列から分類を行うための学習器には，アンサンブル学習の 1 つであるランダムフォレストと大規模データに対して高度な分析が可能な機械学習フレームワークである Jubatus を用いた．実験では，ニュース記事のカテゴリ分類を行い，複数の学習アルゴリズムについて検証した．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"5","bibliographic_titles":[{"bibliographic_title":"研究報告システムソフトウェアとオペレーティング・システム（OS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2014-11-11","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"28","bibliographicVolumeNumber":"2014-OS-131"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:50:08.890751+00:00","id":106805,"links":{}}