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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Canberra distance ： ウィキペディア英語版 Canberra distance The Canberra distance is a numerical measure of the distance between pairs of points in a vector space, introduced in 1966 and refined in 1967 by G. N. Lance and W. T. Williams. It is a weighted version of ''L''₁ (Manhattan) distance.〔Jurman G, Riccadonna S, Visintainer R, Furlanello C: Canberra Distance on Ranked Lists. In Proceedings, Advances in Ranking – NIPS 09 Workshop Edited by Agrawal S, Burges C, Crammer K. 2009, 22–27.〕 The Canberra distance has been used as a metric for comparing ranked lists〔 and for intrusion detection in computer security.〔Syed Masum Emran and Nong Ye (2002). Robustness of chi-square and Canberra distance metrics for computer intrusion detection. ''Quality and Reliability Engineering International'' 18:19–28.〕 == Definition == The Canberra distance ''d'' between vectors p and q in an ''n''-dimensional real vector space is given as follows: :$d(\backslash mathbf,\; \backslash mathbf)\; =\; \backslash sum\_^n\; \backslash frac,$ where :$\backslash mathbf=(p\_1,p\_2,\backslash dots,p\_n)\backslash text\backslash mathbf=(q\_1,q\_2,\backslash dots,q\_n)\backslash ,$ are vectors. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Canberra distance」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.