发明名称 |
Transaction system based on a bidirectional speech channel by status graph building and problem detection for a human user |
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.
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申请公布号 |
US5860059(A) |
申请公布日期 |
1999.01.12 |
申请号 |
US19970810778 |
申请日期 |
1997.03.05 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
AUST, HARALD;BROEDE, HOLGER W.;SCHROEER, OLAF;MARSCHNER, JENS F.;MARTI DEL OLMO, ERIQUE;MEHLAN, RALF |
分类号 |
G06F3/16;G10L15/18;G10L15/22;G10L15/28;H04M3/493;(IPC1-7):G10L3/02;G10L9/00;G10L5/02 |
主分类号 |
G06F3/16 |
代理机构 |
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