tailieunhanh - Báo cáo khoa học: "An Integrated Framework for Semantic and Pragmatic Interpretation"

We report on a mechanism for semantic and pragmatic interpretation that has been designed to take advantage of the generally compositional nature of semantic analysis, without unduly constraining the order in which pragmatic decisions are made. To achieve this goal, we introduce the idea of a conditional interpretation: one that depends upon a set of assumptions about subsequent pragmatic processing. Conditional interpretations are constructed compositionally according to a set of declaratively specified interpretation rules. The mechanism can handle a wide range of pragmatic phenomena and their interactions. . | An Integrated Framework for Semantic and Pragmatic Interpretation 1 Martha E. Pollack Artificial Intelligence Center SRI International 333 Ravenswood Ave Menlo Park CA 94025 USA Fernando . Pereira Cambridge Computer Science Research Centre SRI International Suite 23 Millers Yard Mill Lane Cambridge CB2 IRQ England Abstract We report on a mechanism for semantic and pragmatic interpretation that has been designed to take advantage of the generally compositional nature of semantic analysis without unduly constraining the order in which pragmatic decisions are made. To achieve this goal we introduce the idea of a conditional interpretation one that depends upon a set of assumptions about subsequent pragmatic processing. Conditional interpretations are constructed compositionally according to a set of declaratively specified interpretation rules. The mechanism can handle a wide range of pragmatic phenomena and their interactions. 1 Introduction Compositional systems of semantic interpretation while logically and computationally very attractive 6 20 26 seem unable to cope with the fact that the syntactic form of an utterance is not the only source of information about its meaning. Contextual information information about the world and about the history of a discourse influences not only an utterance s meaning but even its preferred syntactic analysis 3 5 7 16 . Of course context also influences the interpretation or meaning in context of the utterance in which for example referring expressions have been resolved. One possible solution is to move to an integrated system of semantic and pragmatic interpretation defined recursively on syntactic analyses that are 1 This research has been funded by DARPA under Con-tract N00039-84-C-0524 and by a gift from the Systems Development Foundation as part of a coordinated research effort with the Center for the Study of Language and Information Stanford University. We would like to thank David Israel Ray Perrault and Stuart .