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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 Morphological dictionary ： ウィキペディア英語版 Morphological dictionary In the field of computational linguistics, a morphological dictionary is a linguistic resource that contains correspondences between surface form and lexical forms of words. Surface forms of words are those found in any text. The corresponding lexical form of a surface form is the lemma followed by grammatical information (for example the part of speech, gender and number). In English ''give'', ''gives'', ''giving'', ''gave'' and ''given'' are surface forms of the verb ''give''. The lexical form would be "give", verb. There are two kinds of morphological dictionaries: aligned and non-aligned. ==Aligned morphological dictionaries== In an aligned morphological dictionary, the correspondence between the surface form and the lexical form of a word is aligned at the character level, for example: :(h,h) (o,o) (u,u) (s,s) (e,e) (s,), (θ,) Where θ is the empty symbol and signifies "noun", and signifies "plural". In the example the left hand side is the surface form (input), and the right hand side is the lexical form (output). This order is used in morphological analysis where a lexical form is generated from a surface form. In morphological generation this order would be reversed. Formally, if Σ is the alphabet of the input symbols, and $\backslash Gamma$ is the alphabet of the output symbols, an aligned morphological dictionary is a subset $A\; \backslash subset\; 2^$, where: :$L\; =\; ((\; \backslash Sigma\; \backslash cup\; )\; \backslash times\; \backslash Gamma)\; \backslash cup\; (\backslash Sigma\; \backslash times\; (\; \backslash Gamma\; \backslash cup\; ))$ is the alphabet of all the possible alignments including the empty symbol. That is, an aligned morphological dictionary is a set of string in $L^$ *. 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「Morphological dictionary」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.