{"updated":"2025-01-19T14:41:44.337822+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00220022","sets":["1164:3500:10803:10983"]},"path":["10983"],"owner":"44499","recid":"220022","title":["サブワードフレーズ抽出を併用した文書分類"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-09-02"},"_buckets":{"deposit":"408caffa-30b0-4ee3-bdd1-100858d22544"},"_deposit":{"id":"220022","pid":{"type":"depid","value":"220022","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"サブワードフレーズ抽出を併用した文書分類","author_link":["574760","574758","574759"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"サブワードフレーズ抽出を併用した文書分類"}]},"item_type_id":"4","publish_date":"2022-09-02","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"同志社大学大学院文化情報学研究科"},{"subitem_text_value":"名古屋大学数理・データ科学教育研究センター"},{"subitem_text_value":"同志社大学文化情報学部"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Culture and Information Science, Doshisha University","subitem_text_language":"en"},{"subitem_text_value":"Mathematical and Data Science Center, Nagoya University","subitem_text_language":"en"},{"subitem_text_value":"Faculty of Culture and Information Science, Doshisha 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/220022/files/IPSJ-IFAT22148024.pdf","label":"IPSJ-IFAT22148024.pdf"},"date":[{"dateType":"Available","dateValue":"2024-09-02"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-IFAT22148024.pdf","filesize":[{"value":"810.5 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":"39"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"dbb69ae9-1c5c-4b73-a090-5e78c9483946","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2022 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"木村, 優介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"駒水, 孝裕"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"波多野, 賢治"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10114171","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":"2188-8884","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"深層学習を用いた文書分類は従来の手法と比べて高精度を達成してきた．文書分類は固有表現抽出とのマルチタスク学習によりその精度を向上させることが可能であると報告されている．単語に基づいた特徴量を基本とする手法において，意味のまとまりとしてのフレーズは文書分類の精度に寄与することが知られている．一方で，深層学習においてサブワードは一般的に使われているが，単語とは異なり，意味のまとまりを表すとは限らない．そのため，サブワードで構成されるフレーズを文書分類に応用する研究はされてこなかった．そこで，本研究では文書分類の精度向上を目的に，サブワードフレーズ抽出と文書分類のマルチタスク学習を行う文書分類フレームワークを提案する．従来の単語に基づくフレーズ抽出手法が出現頻度を用いてきた点に倣い，本稿では高頻度なサブワードのフレーズをサブワードフレーズとして定義し抽出する．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告情報基礎とアクセス技術（IFAT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2022-09-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"24","bibliographicVolumeNumber":"2022-IFAT-148"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"created":"2025-01-19T01:20:04.442778+00:00","id":220022,"links":{}}