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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 Noisy channel model ： ウィキペディア英語版 Noisy channel model The noisy channel model is a framework used in spell checkers, question answering, speech recognition, and machine translation. In this model, the goal is to find the intended word given a word where the letters have been scrambled in some manner. == Definition == Given an alphabet $\backslash Sigma$, let $\backslash Sigma^$ * be the set of all finite strings over $\backslash Sigma$. Let the dictionary $D$ of valid words be some subset of $\backslash Sigma^$ *, i.e., $D\backslash subseteq\backslash Sigma^$ *. The noisy channel is the matrix :$\backslash Gamma\_\; =\; \backslash Pr(s|w)$, where $w\backslash in\; D$ is the intended word and $s\backslash in\backslash Sigma^$ * is the scrambled word that was actually received. 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「Noisy channel model」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.