翻訳と辞書 Words near each other ・ Mutya han Samar 2005 ・ Mutya Johanna Datul ・ Mutya Keisha Siobhan ・ Mutya ng Pilipinas ・ Mutya ng Pilipinas 2000 ・ Mutya ng Pilipinas 2001 ・ Mutya ng Pilipinas 2002 ・ Mutya ng Pilipinas 2003 ・ Mutya ng Pilipinas 2004 ・ Mutya ng Pilipinas 2005 ・ Mutual Blackbird ・ Mutual Broadcasting System ・ Mutual Building ・ Mutual capacitance ・ Mutual coherence ・ Mutual coherence (linear algebra) ・ Mutual coherence (physics) ・ Mutual combat ・ Mutual Construction Co v Komati Dam Joint Venture ・ Mutual Core ・ Mutual credit ・ Mutual Defense Assistance Act ・ Mutual Defense Treaty (United States – Philippines) ・ Mutual Defense Treaty Between the United States and the Republic of Korea ・ Mutual engagement ・ Mutual exchange ・ Mutual exclusion ・ Mutual exclusivity ・ Mutual exclusivity (psychology) ・ Mutual Feeling Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Mutual coherence (linear algebra) ： ウィキペディア英語版 Mutual coherence (linear algebra) In linear algebra, the coherence or mutual coherence of a matrix ''A'' is defined as the maximum absolute value of the cross-correlations between the columns of ''A''. Formally, let $a\_1,\; \backslash ldots,\; a\_m\backslash in\; ^d$ be the columns of the matrix ''A'', which are assumed to be normalized such that $a\_i^H\; a\_i\; =\; 1.$ The mutual coherence of ''A'' is then defined as〔〔 :$M\; =\; \backslash max\_\; \backslash left|\; a\_i^H\; a\_j\; \backslash right|.$ A lower bound is :$M\backslash ge\; \backslash sqrt\}$ A deterministic matrix with the mutual coherence almost meeting the lower bound can be constructed by Weil's theorem. The concept was introduced in a slightly less general framework by David Donoho and Xiaoming Huo, and has since been used extensively in the field of sparse representations of signals. In particular, it is used as a measure of the ability of suboptimal algorithms such as matching pursuit and basis pursuit to correctly identify the true representation of a sparse signal.〔〔 == See also == *Compressed sensing *Restricted isometry property 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「Mutual coherence (linear algebra)」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.