翻訳と辞書 Words near each other ・ Simkins ・ Similan Islands ・ Similar fact evidence ・ Similar Skin ・ Similaria ・ Similarities (album) ・ Similarities between Wiener and LMS ・ Similarity ・ Similarity (geometry) ・ Similarity (network science) ・ Similarity (psychology) ・ Similarity heuristic ・ Similarity invariance ・ Similarity learning ・ Similarity matrix ・ Similarity measure ・ Similarity relation (music) ・ Similarity score ・ Similarity search ・ Similarity solution ・ Similarity transformation ・ SimilarWeb ・ Similaun ・ SIMILE ・ Simile ・ Simile (computer virus) ・ Simile (disambiguation) ・ Simile, Mpumalanga ・ Similes (album) ・ Simili (album) 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 Similarity measure ： ウィキペディア英語版 Similarity measure In computer science, a similarity measure or similarity function is a real-valued function that quantifies the similarity between two objects. Although no single definition of a similarity measure exists, usually similarity measures are in some sense the inverse of distance metrics: they take on large values for similar objects and either zero or a negative value for very dissimilar objects. E.g., in the context of cluster analysis, Frey and Dueck suggest defining a similarity measure :$s(x,\; y)\; =\; -||x\; -\; y||\_2^2$ where $||x\; -\; y||\_2^2$ is the squared Euclidean distance. In information retrieval, cosine similarity is a commonly used similarity measure, defined on vectors arising from the bag of words model. In machine learning, common kernel functions such as the RBF kernel can be viewed as similarity functions. ==References== * 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「Similarity measure」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.