Attention, intentions, and the structure of discourse
Computational Linguistics
Computer architecture: a quantitative approach
Computer architecture: a quantitative approach
Centering: a framework for modeling the local coherence of discourse
Computational Linguistics
Limited attention and discourse structure
Computational Linguistics
The computational processing of intonational prominence: a functional prosody perspective
The computational processing of intonational prominence: a functional prosody perspective
Towards a Computational Theory of Definite Anaphora Comprehension in English Discourse
Towards a Computational Theory of Definite Anaphora Comprehension in English Discourse
Empirical studies on the disambiguation of cue phrases
Computational Linguistics
Current theories of centering for pronoun interpretation: a critical evaluation
Computational Linguistics
A collaborative planning model of intentional structure
Computational Linguistics
Focusing for interpretation of pronouns
Computational Linguistics
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Walker (1996) presents a cache model of the operation of attention in the processing of discourse as an alternative to the focus space stack that was proposed previously by Grosz and Sidner (Grosz 1977a; Grosz and Sidner 1986). In this squib, we present a critical analysis of the cache model and of Walker's supporting evidence from anaphora in discourses with interruptions and from informationally redundant utterances. We argue that the cache model is underdetermined in several ways that are crucial to a comparison of the two models and conclude that Walker has not established the superiority of the cache model. We also argue that psycholinguistic evidence does not support the cache model over the focus stack model.