摘要: Controlled and restricted dialogue systems are reliable enough to be deployed in various real world applications. The more conversational a system becomes, the difficult unreliable become recognition processing. Numerous research projects struggling overcome problems arising with more- or truly system. We introduce set of contextual coherence measurements that can improve reliability spoken systems, by including knowledge at stages natural language processing pipeline. show that, situational successfully employed resolve pragmatic ambiguities it coupled ontological semantic choose among competing automatic speech hypotheses.