Continuous listening for unconstrained spoken dialog
نویسندگان
چکیده
A major hindrance to rendering spoken dialog systems capable of ongoing, continuous listening without requiring a push-to-talk device is the problem of distinguishing speech which is intended for the system from that which is overheard. We present a decision-theoretic approach to this problem that exploits Bayesian models of spoken dialog at four levels of analysis within a domain-independent, multi-modal computational architecture called Quartet. We applied Quartet to the task of navigating PowerPoint slide shows during a spoken presentation in a prototype system called Presenter. We describe the runtime behavior of Presenter as well as the results of an experimental study comparing the performance of Presenter to human subjects in discriminating arbitrarily formed spoken requests for slide navigation during a recorded lecture.
منابع مشابه
Are We There Yet? Research in Commercial Spoken Dialog Systems
In this paper we discuss the recent evolution of spoken dialog systems in commercial deployments. Yet based on a simple finite state machine design paradigm, dialog systems reached today a higher level of complexity. The availability of massive amounts of data during deployment led to the development of continuous optimization strategy pushing the design and development of spoken dialog applica...
متن کاملA study in responsiveness in spoken dialog
The future of human-computer interfaces may include systems which are humanlike in abilities and behavior. One particularly interesting aspect of human-to-human communication is the ability of some conversation partners to sensitively pick up on the nuances of the other’s utterances, as they shift from moment to moment, and to use this information to subtly adjust responses to express interest,...
متن کاملRobust numeric recognition in spoken language dialogue
This paper addresses the problem of automatic numeric recognition and understanding in spoken language dialogue. We show that accurate numeric understanding in ̄uent unconstrained speech demands maintaining robustness at several dierent levels of system design, including acoustic, language, understanding and dialogue. We describe a robust system for numeric recognition and present algorithms f...
متن کاملTowards measuring continuous acoustic feature convergence in unconstrained spoken dialogues
Acoustic/prosodic feature (a/p) convergence has been known to occur both in dialogues between humans, as well as in human-computer interactions. Understanding the form and function of convergence is desirable for developing next generation conversational agents, as this will help increase speech recognition performance and naturalness of synthesized speech. Currently, the underlying mechanisms ...
متن کاملAn Architecture for Multi-Domain Spoken Dialog Systems
Several spoken dialog systems for the speci c task domain have been developed so far. But there are only a few multi-domain systems which consider about extensibility and scalability. This paper proposes a distributed architecture for the multi-domain spoken dialog systems which satis es extensibility and scalability. The key concept of the architecture is distribution and integration of the da...
متن کامل