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    • 5. 发明授权
    • Specifying arbitrary words in rule-based grammars
    • 在基于规则的语法中指定任意单词
    • US07302381B2
    • 2007-11-27
    • US09752994
    • 2000-12-30
    • Shuvranshu PokhariyalShirish AundheJason DavidsonThomas HernandezCorey Gough
    • Shuvranshu PokhariyalShirish AundheJason DavidsonThomas HernandezCorey Gough
    • G10F17/20
    • G10L15/193
    • A method and apparatus are described for specifying arbitrary words in a rule-based grammar, such as a context-free grammar. A wildcard identifier is used in a context-free grammar file in place of a predefined category of words. Artificial phoneme combinations that represent generic words in a speech engine's vocabulary database, and that represent pronunciations of the predefined category of words are defined by rules. A speech engine uses the artificial phoneme combinations to determine acceptable words to listen to, and generates a results object comprising generic words corresponding to the artificial phoneme combinations, as well as non-generic words that do not exist in a given CFG, where the generic and non-generic words exist in the speech engine's vocabulary database. The word having the highest confidence level that is not a generic word is selected as the word most likely to have been spoken by the user.
    • 描述了用于在基于规则的语法中指定任意单词的方法和装置,例如无上下文的语法。 在无上下文的语法文件中使用通配符标识符来代替预定义的单词类型。 在语音引擎的词汇数据库中表示通用词的人造音素组合,以及代表预定义词类的发音的人造音素组合由规则定义。 语音引擎使用人造音素组合来确定可听的词语,并且生成包括对应于人造音素组合的通用词的结果对象,以及在给定的CFG中不存在的非通用词,其中通用 而非通用词存在于语音引擎的词汇数据库中。 选择不是通用词的置信水平最高的词作为用户最可能使用的单词。