Transaction system based on a bidirectional speech channel by status
graph building and problem detection for a human user
    1.
    发明授权
    Transaction system based on a bidirectional speech channel by status graph building and problem detection for a human user 失效
    基于双向语音信道的交易系统,通过状态图构建和人类用户的问题检测

    公开(公告)号:US5860059A

    公开(公告)日:1999-01-12

    申请号:US810778

    申请日:1997-03-05

    摘要: A transaction system has machine recognition of speech. It has dialogue control fed by the recognition, and speech generation fed by the dialogue control for outputting question and verifier statements from a repertoire set. A human-machine dialogue is executed until the dialogue control has recognized a viable transaction formulation with a plurality of user-provided slot fillers to specify the transaction. Dialogue control builds a directed and loopless status graph with nodes that each have their own slot filler and associated metric, and are interrelated through logic relations. The building can amend a node's metric and under control of conflict detection or lowering of a particular node's metric, discard the node in question and its filler, including of derived nodes and also of one-to-one derival nodes of the discarded node. A subset of problems is detected for a particular item outputted by the speech generation for ascertaining a particular slot filler, as combined with a subsequent unsatisfactory recognition. Then the speech generation outputs a further question statement for ascertaining the latter slot filler.

    摘要翻译: 交易系统具有机器对语音的识别。 它具有通过识别进行的对话控制,以及由对话控制馈送的语音生成,用于从集合集中输出问题和验证者语句。 执行人机对话,直到对话控件已经识别出具有多个用户提供的插槽填充器的可行交易公式来指定交易。 对话控制构建了一个有针对性的无状态状态图,每个节点都有自己的插槽填充和关联度量,并且通过逻辑关系相互关联。 建筑物可以修改节点的度量,并且在冲突检测或特定节点度量的降低的控制下,丢弃所涉及的节点及其填充物,包括派生节点以及丢弃节点的一对一导出节点。 检测到由语音产生输出的用于确定特定时隙填充器的特定项目的问题的子集,以及随后的不令人满意的识别。 然后,语音生成输出另一个问题陈述,以确定后者的插槽填充。