{"created":"2023-07-25T10:25:24.240547+00:00","id":3748,"links":{},"metadata":{"_buckets":{"deposit":"5bf411bd-8fb3-4bce-a4bf-215bfc03fee8"},"_deposit":{"created_by":4,"id":"3748","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"3748"},"status":"published"},"_oai":{"id":"oai:naist.repo.nii.ac.jp:00003748","sets":["34:35"]},"author_link":["5942","5943","5944"],"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Model Adaptation by HMM Decomposition and Composition in Noisy Reverberant Environments","subitem_alternative_title_language":"en"}]},"item_7_biblio_info_9":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1998-10","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicPageEnd":"2238","bibliographicPageStart":"2231","bibliographicVolumeNumber":"J81-D-II","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌D-II","bibliographic_titleLang":"ja"}]}]},"item_7_description_7":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ユーザがマイクロホンから離れて発話した場合のハンズフリー音声認識に対しては, 残響環境下において認識精度が劣化してしまう.なぜなら, その音声は, 周囲の雑音および残響の影響を受けてしまい, 学習データと観測データとの間にミスマッチが生じてしまうためである.それらの影響に対処するために, 筆者らは, これまでに音響伝達特性HMMを作成し, HMM合成法による音声認識法を提案した[1], [2].しかし, その方法では認識を行う前に, あらかじめ各場所からの音声伝達特性を測定する必要があった.本論文では, 音響伝達特性HMMの推定を, 観測信号より行う方法を提案する.この方法では, 話者の場所が既知である必要はなく, 任意の場所から発話された適応データを用いて, 最ゆう推定に基づき, HMMを一つの既知HMMともう一つのHMMに分解し, モデルパラメータの推定を行う.音素を単位にした500単語認識実験の結果, 特定話者認識率が77.2%から91.2%に, 不特定話者認識率は54.4%から66.2%に改善され, 提案方法の有効性が示された.","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_7_publisher_10":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会","subitem_publisher_language":"ja"}]},"item_7_rights_11":{"attribute_name":"出版者URL","attribute_value_mlt":[{"subitem_rights":"http://ci.nii.ac.jp/naid/110003227912"}]},"item_7_rights_18":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (C) 1998 電子情報通信学会.","subitem_rights_language":"ja"}]},"item_7_source_id_12":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0915-1923","subitem_source_identifier_type":"ISSN"}]},"item_7_source_id_14":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN1007132X","subitem_source_identifier_type":"NCID"}]},"item_7_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"滝口, 哲也","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"5942","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中村, 哲","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"5943","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鹿野, 清宏","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"5944","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-03-02"}],"displaytype":"detail","filename":"IEICEDII_JD81II_10_2231.pdf","filesize":[{"value":"7.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"fulltext","objectType":"fulltext","url":"https://naist.repo.nii.ac.jp/record/3748/files/IEICEDII_JD81II_10_2231.pdf"},"version_id":"7c4617f2-d287-456e-97ec-4d0573044455"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"雑音","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"残響","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"モデル適応","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"HMM分解・合成","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"ハンズフリー音声認識","subitem_subject_language":"ja","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"雑音・残響環境下でのHMM分解・合成法によるモデル適応化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"雑音・残響環境下でのHMM分解・合成法によるモデル適応化","subitem_title_language":"ja"}]},"item_type_id":"7","owner":"4","path":["35"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2012-07-05"},"publish_date":"2012-07-05","publish_status":"0","recid":"3748","relation_version_is_last":true,"title":["雑音・残響環境下でのHMM分解・合成法によるモデル適応化"],"weko_creator_id":"4","weko_shared_id":-1},"updated":"2023-11-17T07:56:20.296092+00:00"}