We define and study bisimulation for proving contextual equivalence in an aspect extension of the untyped lambda-calculus. To our knowledge, this is the first study of coinductive...
Abstract. A key challenge in information retrieval is the use of contextual evidence within ad-hoc retrieval. Our contribution is particularly based on the belief that contextual r...
We present a sound and complete proof technique, based on syntactic logical relations, for showing contextual equivalence of expressions in a -calculus with recursive types and imp...
Many of the kinds of language model used in speech understanding suffer from imperfect modeling of intra-sentential contextual influences. I argue that this problem can be address...
The paper presents the Constructive Dialogue Model as a new approach to formulate system goals in intelligent dialogue systems. The departure point is in general communicative pri...