{"created":"2023-05-15T12:36:03.670691+00:00","id":5229,"links":{},"metadata":{"_buckets":{"deposit":"e1318c9c-71f7-4529-bc09-525e0ee46c53"},"_deposit":{"created_by":3,"id":"5229","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"5229"},"status":"published"},"_oai":{"id":"oai:nitech.repo.nii.ac.jp:00005229","sets":["31"]},"author_link":["17781","8551","17783"],"item_10001_alternative_title_24":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"IP　ネットワークジョウ　デノ　オンセイ　ビデオ　デンソウ　ニオケル　ユーザ　レベル　QoS　ノ　タジゲン　ヒョウカ　"},{"subitem_alternative_title":"Multidimensional Assessment of User-Level QoS for Audio-Video Transmission over IP Networks"}]},"item_10001_biblio_info_28":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-03-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"702","bibliographicPageStart":"689","bibliographicVolumeNumber":"J88-B","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会論文誌. B, 通信"}]}]},"item_10001_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"本論文では，計量心理学的測定法の一つであるSD法を用いて，IPネットワークによる音声・ビデオ伝送におけるユーザレベルQoSを多次元的に評価する．このために，音声・ビデオ送受信端末，負荷送受信端末及び2個のルータよりなる簡単な構成のネットワークにおいて3種類のコンテンツを対象としたシミュレーション実験を行う．また，総合的な主観品質も評価し，得られた結果から，音声・ビデオ伝送のユーザレベルQoS評価における判断の主要因を調査する．更に，重回帰分析を用いたQoSマッピングにより，アプリケーションレベルQoSとユーザレベルQoSの各主要因との関係を明確にする．実験結果から，本実験環境においては，音声・ビデオ伝送における総合的な主観品質評価の要因は，ネットワークの品質劣化に影響されるものと，コンテンツに依存するものの二つであることが分かった．更に，ネットワークの品質に関連のある要因はアプリケーションレベルQoSパラメータから推定できることが分かった．","subitem_description_type":"Other"}]},"item_10001_description_38":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_10001_full_name_27":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"8551","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000050335098","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000050335098"}],"names":[{"name":"Ito, Yoshihiro"}]},{"nameIdentifiers":[{"nameIdentifier":"17783","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Tasaka, Shuji"}]}]},"item_10001_publisher_29":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Institute of Electronics, Information and Communication Engineers"}]},"item_10001_source_id_30":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13444697","subitem_source_identifier_type":"ISSN"}]},"item_10001_source_id_32":{"attribute_name":"書誌レコードID（NCID）","attribute_value_mlt":[{"subitem_source_identifier":"AA11325909","subitem_source_identifier_type":"NCID"}]},"item_10001_version_type_33":{"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_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"伊藤, 嘉浩"},{"creatorName":"イトウ, ヨシヒロ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"8551","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"1000050335098","nameIdentifierScheme":"NRID","nameIdentifierURI":"http://rns.nii.ac.jp/nr/1000050335098"}]},{"creatorNames":[{"creatorName":"田坂, 修二"},{"creatorName":"タサカ, シュウジ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"17781","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":"2017-01-25"}],"displaytype":"detail","filename":"J88-B_689.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","license_note":"Copyright (c) 2005 IEICE　http://search.ieice.org/index.html","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"本文_fulltext","url":"https://nitech.repo.nii.ac.jp/record/5229/files/J88-B_689.pdf"},"version_id":"cc7b952e-210e-4dab-a3a5-f27fbfb41bf5"}]},"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":"IPネットワーク上での音声・ビデオ伝送におけるユーザレベル QoSの多次元評価","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"IPネットワーク上での音声・ビデオ伝送におけるユーザレベル QoSの多次元評価"}]},"item_type_id":"10001","owner":"3","path":["31"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-06-25"},"publish_date":"2013-06-25","publish_status":"0","recid":"5229","relation_version_is_last":true,"title":["IPネットワーク上での音声・ビデオ伝送におけるユーザレベル QoSの多次元評価"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-05-15T14:29:58.248659+00:00"}