{"created":"2023-06-20T14:35:42.888501+00:00","id":1991,"links":{},"metadata":{"_buckets":{"deposit":"59f42dee-b33f-48ca-abe9-1a0ce4fadeeb"},"_deposit":{"created_by":1,"id":"1991","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"1991"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00001991","sets":["1398:1399:1406","1887:1893","9:10:87:91"]},"author_link":["2050","2053","2058","2055","2057","2052","2054","2056","2051","2059"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Similarity Search of Astronomical X-ray Data using Dynamic Time Warping Distance"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-03-29","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"27","bibliographicPageStart":"19","bibliographicVolumeNumber":"JAXA-RR-12-006","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発報告: 宇宙科学情報解析論文誌: 第2号"},{"bibliographic_title":"JAXA Research and Development Report: Journal of Space Science Informatics Japan Volume 2","bibliographic_titleLang":"en"}]}]},"item_3_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"科学分野で扱われるデータ量は爆発的に増加しており，膨大なデータに対する機械的処理への要求は極めて高い．論文では，天体物理学における X 線天体の X 線アウトバースト現象を対象に，その観測データの類似検索を行う手法を提案する．具体的には，観測データからアウトバースト部分の自動検出を行なう．得られたデータに対し，ノイズ除去を目的とした平滑化と正規化を施した上で，動的タイムワーピン（DTW;DynamicTimeWarping）法を適用する． DTW 法は，長さが異なる時系列データに対しても適用可能であるだけでなく，時間軸方向のスケーリングに対しても頑健なマッチングを行うことが距離である．さらに，X 線アウトバーストの持つ特徴や，類似検索に対する要求を考慮し， DTW 法の改良手法であるDerivative DTW 法や，DTW 法に滑り窓を適用した手法など，いくつかの新たな手法を提案する．さらに，実データとの比較によってその有効性を評価する．","subitem_description_type":"Abstract"}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Explosive growth of data volume in scientific domains has caused demand of machine processing of the massive scientific data. In this paper we propose several schemes of similarity search over astronomical X-ray data for X-ray outbursts. Specifically, we first detect outbursts from the original data, followed by smoothing for reducing noise and normalization. Having detected outburst patterns, we apply dynamic time warping (DTW), which is knowntoberobustagainsttimescalingtoevaluate similarities betweentwooutburst patterns.We proposeseveral variationsbasedonDTWbytaking featuresoftheoutburst patternsand requirementsforthe similaritysearch;we apply derivative DTW, which is a variant of DTW, and apply sliding windows to evaluate partial similarities. We evaluate feasibility of the proposed schemes by experiments using real X-ray astronomy data.","subitem_description_type":"Other"}]},"item_3_description_18":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"形態: カラー図版あり","subitem_description_type":"Other"}]},"item_3_description_19":{"attribute_name":"内容記述（英）","attribute_value_mlt":[{"subitem_description":"Physical characteristics: Original contains color illustrations","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0061914003","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RR-12-006","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構(JAXA)"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1113","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA1192675X","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"筑波大学大学院システム情報工学研究科"},{"subitem_text_value":"筑波大学システム情報系 : 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)"},{"subitem_text_value":"筑波大学システム情報系"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)"},{"subitem_text_value":"宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Graduate School of Systems and Information Engineering, University of Tsukuba"},{"subitem_text_language":"en","subitem_text_value":"Faculty of Engineering, Information and Systems, University of Tsukuba : Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Faculty of Engineering, Information and Systems, University of Tsukuba"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"林, 史尊"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"天笠, 俊之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"北川, 博之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"海老沢, 研"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中平, 聡志"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hayashi, Fumitaka","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Amagasa, Toshiyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kitagawa, Hiroyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Ebisawa, Ken","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Nakahira, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-15"}],"displaytype":"detail","filename":"61914003.pdf","filesize":[{"value":"1.9 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"61914003.pdf","url":"https://jaxa.repo.nii.ac.jp/record/1991/files/61914003.pdf"},"version_id":"e091ffe6-9a53-4580-b0eb-f307e575ffe1"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Astronomical X-ray Data, Similarity Search, DynamicTimeWarping","subitem_subject_language":"en","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"動的タイムワーピング距離を用いたX 線天文データの類似検索","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"動的タイムワーピング距離を用いたX 線天文データの類似検索"}]},"item_type_id":"3","owner":"1","path":["91","1406","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"1991","relation_version_is_last":true,"title":["動的タイムワーピング距離を用いたX 線天文データの類似検索"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:30:52.948001+00:00"}