While the notion of a cooperative response has been the focus of considerable research in natural language dialogue systems, there has been little empirical work demonstrating how such responses lead to more efficient, natural, or successful dialogues. This paper presents an experimental evaluation of two alternative response strategies in TOOT, a spoken dialogue agent that allows users to acce...

This paper describes the dialogue module of the Mercury system, which has been under development over the past year or two. Mercury provides telephone access to an on-line ight database, and allows users to plan and price itineraries between major airports worldwide. The main focus of this paper is the dialogue control strategy, which is based on a set of ordered rules as a mechanism to manage ...

This paper describes the experience gained from the structuring of a spoken dialogue system and its key components during the design and development of a telephony based office message center, it integrates auto-attendant, email accessing, meeting scheduling capabilities through spoken dialogue interface. A building block dialogue toolkit has been designed based on these experiences and efficie...

This paper describes a design and feasibility study for a large-scale automatic directory information system with a scalable architecture. The current demonstrator, called PADIS-XL, operates in realtime and handles a database of a medium-size German city with 130,000 listings. The system uses a new technique of taking a combined decision on the joint probability over multiple dialogue turns, an...

The kind of relationship a designer will have with a design assisting tool is dependent upon the kind of dialogue possible between the two, and any dialogue will be conditioned by the degree of mutual understanding existing between designer and assistant. In the first part of this paper we examine the methodology, currently prevalent in the computer-aided building design domain, that is suppose...

Conversational spoken dialogue systems can assist individuals to communicate with machine to obtain relevant information to their problems efficiently and effectively. By referring to relevant response, individuals can understand how to interact with an intelligent system according to recommendations of dialogue systems. This work presents a response generation based on hierarchical semantic st...

In previous work, we used plan recognition to improve responses to users in an advice-giving setting. We then characterized when it was worthwhile to engage a user in clarification dialogue--the cases where plan ambiguity mattered to the formulation of a response. Our current research develops detailed algorithms for selecting what to say during the clarification dialogue. We propose a default ...

Due to recent progresses in the field of speech and natural language processing, spoken dialogue systems are becoming more and more common. Nevertheless, the design of complete dialogue systems remains uneasy. On the one hand, developing such a system involves defining a dialogue strategy. Though automatic learning of dialogue strategies has been introduced in several researches, it stays hard ...

When considering di erent dialogue systems, three approaches to dialogue management can be distinguished. Special purpose NL interfaces aim at providing an appropriate service with simple dialogues constrained by the requirements of a particular task. Usually the system reacts mechanically to the user's request, and the user is required to nd an appropriate question strategy to get the informat...