{"id":194604,"created":"2025-01-19T00:59:38.855257+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00194604","sets":["1164:4061:9694:9715"]},"path":["9715"],"owner":"44499","recid":"194604","title":["CSIを用いたデバイスフリーユーザの位置推定に関する実験的考察"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-02-25"},"_buckets":{"deposit":"f2464b10-4b36-440f-a551-39f6573576b1"},"_deposit":{"id":"194604","pid":{"type":"depid","value":"194604","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"CSIを用いたデバイスフリーユーザの位置推定に関する実験的考察","author_link":["461044","461041","461040","461042","461043"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"CSIを用いたデバイスフリーユーザの位置推定に関する実験的考察"}]},"item_type_id":"4","publish_date":"2019-02-25","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"大阪大学大学院情報科学研究科"},{"subitem_text_value":"日本電信電話株式会社NTTアクセスサービスシステム研究所"},{"subitem_text_value":"日本電信電話株式会社NTTアクセスサービスシステム研究所"},{"subitem_text_value":"大阪大学大学院情報科学研究科"},{"subitem_text_value":"大阪大学大学院情報科学研究科"}]},"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/194604/files/IPSJ-UBI19061006.pdf","label":"IPSJ-UBI19061006.pdf"},"date":[{"dateType":"Available","dateValue":"2021-02-25"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-UBI19061006.pdf","filesize":[{"value":"3.4 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"36"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"3aa1e50d-abd9-4aad-873f-17e03fc927bf","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2019 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"福島, 健"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村上, 友規"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"アベセカラ, ヒランタ"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"猿渡, 俊介"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"渡辺, 尚"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11838947","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":"2188-8698","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"室内において様々なアプリケーションを実現するためにデバイスフリーユーザの位置を高い精度で推定できる手法が求められている．本稿では，IEEE 802.11ac で規定されている CSI フィードバック情報を基にしたデバイスフリーユーザの位置を推定する CSI (Channel State Information) の学習システムを提案する．提案する CSI 学習システムは既存の Wi-Fi デバイスから送信される CSI フィードバックフレームの取得と 624 個の特徴量の算出を行う．その後，機械学習と算出した 624 個の特徴量を用いてデバイスフリーなユーザの位置推定を行う．筆者らはデバイスフリーユーザとアンテナの向きを考慮して 6 つのデータセットを用いた実験を通して位置推定における提案システムの性能を評価した．評価の結果，位置推定における提案システムは 7 つの位置に対してユーザの位置を推定する場合，約 96% の精度で正しく推定することを示す．また，分散した CSI の値を用いた場合，位置推定の精度が向上することを示す．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告ユビキタスコンピューティングシステム（UBI）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2019-02-25","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"2019-UBI-61"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"updated":"2025-01-19T23:25:14.932508+00:00","links":{}}