{"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00095626","sets":["5471:6674:7291"]},"path":["7291"],"owner":"11","recid":"95626","title":["Detecting Significant Locations from Raw GPS Data Using Random Space Partitioning"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-07-15"},"_buckets":{"deposit":"2927c591-d6e8-40aa-9075-1e1eb2f24532"},"_deposit":{"id":"95626","pid":{"type":"depid","value":"95626","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"Detecting Significant Locations from Raw GPS Data Using Random Space Partitioning","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Detecting Significant Locations from Raw GPS Data Using Random Space Partitioning"},{"subitem_title":"Detecting Significant Locations from Raw GPS Data Using Random Space Partitioning","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[Special Issue on ICT Activating Society] significant locations, GPS, random partitioning, LSH","subitem_subject_scheme":"Other"}]},"item_type_id":"5","publish_date":"2012-07-15","item_5_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation"},{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation"},{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation"},{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation"},{"subitem_text_value":"RCAST, The University of Tokyo"}]},"item_5_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"System Platforms Research Laboratories, NEC Corporation","subitem_text_language":"en"},{"subitem_text_value":"RCAST, The University of Tokyo","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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/95626/files/IPSJ-JIP2003032.pdf"},"date":[{"dateType":"Available","dateValue":"2014-07-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JIP2003032.pdf","filesize":[{"value":"1.3 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"5"},{"tax":["include_tax"],"price":"0","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"0937dddf-ef0a-4960-a5e5-422ae78cb724","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2012 by the Information Processing Society of Japan"}]},"item_5_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nobuharu, Kami"},{"creatorName":"Teruyuki, Baba"},{"creatorName":"Satoshi, Ikeda"},{"creatorName":"Takashi, Yoshikawa"},{"creatorName":"Hiroyuki, Morikawa"}],"nameIdentifiers":[{}]}]},"item_5_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nobuharu, Kami","creatorNameLang":"en"},{"creatorName":"Teruyuki, Baba","creatorNameLang":"en"},{"creatorName":"Satoshi, Ikeda","creatorNameLang":"en"},{"creatorName":"Takashi, Yoshikawa","creatorNameLang":"en"},{"creatorName":"Hiroyuki, Morikawa","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_5_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00700121","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_5_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-6652","subitem_source_identifier_type":"ISSN"}]},"item_5_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"We present a fast algorithm for probabilistically extracting significant locations from raw GPS data based on data point density. Extracting significant locations from raw GPS data is the first essential step of algorithms designed for location-aware applications. Most current algorithms compare spatial/temporal variables with given fixed thresholds to extract significant locations. However, the appropriate threshold values are not clearly known in priori, and algorithms with fixed thresholds are inherently error-prone, especially under high noise levels. Moreover, they do not often scale in response to increase in system size since direct distance computation is required. We developed a fast algorithm for selective data point sampling around significant locations based on density information by constructing random histograms using locality-sensitive hashing. Theoretical analysis and evaluations show that significant locations are accurately detected with a loose parameter setting even under high noise levels.","subitem_description_type":"Other"}]},"item_5_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"We present a fast algorithm for probabilistically extracting significant locations from raw GPS data based on data point density. Extracting significant locations from raw GPS data is the first essential step of algorithms designed for location-aware applications. Most current algorithms compare spatial/temporal variables with given fixed thresholds to extract significant locations. However, the appropriate threshold values are not clearly known in priori, and algorithms with fixed thresholds are inherently error-prone, especially under high noise levels. Moreover, they do not often scale in response to increase in system size since direct distance computation is required. We developed a fast algorithm for selective data point sampling around significant locations based on density information by constructing random histograms using locality-sensitive hashing. Theoretical analysis and evaluations show that significant locations are accurately detected with a loose parameter setting even under high noise levels.","subitem_description_type":"Other"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"766","bibliographic_titles":[{"bibliographic_title":"Journal of information processing"}],"bibliographicPageStart":"757","bibliographicIssueDates":{"bibliographicIssueDate":"2012-07-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicVolumeNumber":"20"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"id":95626,"updated":"2025-01-21T13:41:21.980879+00:00","links":{},"created":"2025-01-18T23:42:39.290403+00:00"}