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    • 10. 发明授权
    • Apparatus, method, and medium for dialogue speech recognition using topic domain detection
    • 使用主题域检测的对话语音识别的装置,方法和介质
    • US08301450B2
    • 2012-10-30
    • US11589165
    • 2006-10-30
    • Jae-won LeeIn-jeong Choi
    • Jae-won LeeIn-jeong Choi
    • G06F17/27G10L15/00G10L15/04G10L17/00G10L15/18
    • G10L15/1822G10L15/1815
    • An apparatus, method, and medium for dialogue speech recognition using topic domain detection are disclosed. An apparatus includes a forward search module performing a forward search in order to create a word lattice similar to a feature vector, which is extracted from an input voice signal, with reference to a global language model database, a pronunciation dictionary database and an acoustic model database, which have been previously established, a topic-domain-detection module detecting a topic domain by inferring a topic based on meanings of vocabularies contained in the word lattice using information of the word lattice created as a result of the forward search, and a backward-decoding module performing a backward decoding of the detected topic domain with reference to a specific topic domain language model database, which has been previously established, thereby outputting a speech recognition result for an input voice signal in text form. Accuracy and efficiency for a dialogue sentence are improved.
    • 公开了一种使用主题域检测进行对话语音识别的装置,方法和介质。 一种装置,包括执行前向搜索的前向搜索模块,以便参考全局语言模型数据库,发音词典数据库和声学模型来创建类似于从输入语音信号提取的特征向量的单词格 数据库,其已经建立,主题域检测模块通过使用由作为前向搜索的结果创建的单词格点的信息,基于包含在单词格中的词汇的含义来推断主题来检测主题领域,以及 后向解码模块参照已经建立的特定主题域语言模型数据库执行所检测到的主题域的反向解码,从而以文本形式输出用于输入语音信号的语音识别结果。 提高对话句子的​​准确性和效率。