Research aimed at correcting words in text has focused on three progressively more difficult
problems:(1) nonword error detection;(2) isolated-word error correction; and (3) context …

This paper presents INTRIGUE, a prototype tourist-information server that presents
information about the area around Turin City, Italy, on desktop and hand held devices. This …

To participate in a dialogue a system must be capable of reasoning about its own previous
utterances. Follow-up questions must be interpreted in the context of the ongoing …

An agent's ability to understand an utterance depends upon its ability to relate that utterance
to the preceding discourse. The agent must determine whether the utterance begins a new …

Conflict situations do not only arise from misunderstandings, erroneous perceptions, partial
knowledge, false beliefs, etc., but also from differences in “opinions” and in the different …

Lifelike animated agents for knowledge-based learning environments can provide timely,
customized advice to support learnersâ problem-solving activities. By drawing on a rich …

One of the biggest challenges in the development and deployment of spoken dialogue
systems is the design of the spoken language generation module. This challenge arises …

Participants in a discourse sometimes fail to understand one another, but, when aware of the
problem, collaborate upon or negotiate the meaning of a problematic utterance. To address …

Here we describe an abductive account of the interpretation of speech acts and the repair of
speech act misunderstandings. Our discussion considers the kinds o fin formation that …

This paper considers student modelling from the point of view of the formal techniques that
are involved. It attempts to provide a theoretical, computational basis for student modelling …