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Lexical choice is the subtask of Natural language generation that involves choosing the content words (nouns, verbs, adjectives, and adverbs) in a generated text. Function words (determiners, for example) are usually chosen during Realisation. ==Examples== The simplest type of lexical choice involves mapping a domain concept (perhaps represented in an ontology) to a word. For example, the concept Finger might be mapped to the word ''finger''. A more complex situation is when a domain concept is expressed using different words in different situations. For example, the domain concept Value-Change can be expressed in many ways * ''The temperature rose'': the verb ''rose'' is used for a Value-Change in temperature which increases the value * ''The temperature fell'': the verb ''fell'' is used for a Value-Change in temperature which decreases the value * ''The rain got heavier'': the phrase ''got heavier'' is used for a Value-Change in precipitation amount when the precipitation is rain. Sometimes words can communicate additional contextual information, for example * ''The temperature plummeted'': the verb ''plummeted'' is used for a Value-Change in temperature which decreases the value, when the change is rapid and large Contextual information is especially significant for vague terms such as ''tall''. For example, a 2m tall man is ''tall'', but a 2m tall horse is ''small''. 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「Lexical choice」の詳細全文を読む スポンサード リンク
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