tailieunhanh - Báo cáo khoa học: "SOME COMPUTATIONAL ASPECTS OF SITUATION SEMANTICS"

Can a realist model t h e o r y of natural language be computationally plausible? Or, t o p u t i t another way, is the view of linguistic meaning as a relation between expressions of a natural language and things (objects, properties, etc.) in the world, as opposed to a relation between expressions and procedures in the head. consistent with a computational approach to understanding natural language? | SOME COMPUTATIONAL ASPECTS OF SITUATION SEMANTICS Jon Barwise Philosophy Department Stanford University Stanford California Departments of Mathematics and Computer Science University of Wisconsin Madison Wisconsin Can a realist model theory of natural language be computationally plausible Or to put Lt another way is the view of linguistic meaning as a relation between expressions of a natural language and things objects properties etc. In the world as opposed to a relation between expressions and procedures in the head consistent with a computational approach to understanding natural language The model theorist must either claim that the answer is yes or be willing to admit that humans transcend the computationally feasible in their use of language Until recently the only model theory of natural language that was at all well developed was Montague Grammar. Unfortunately It was based on the primitive notion of possible world and so was not a realist theory unless you are prepared to grant that all possible worlds are real. Montague Grammar Is also computationally Intractable for reasons to be discussed below. John Perry and 1 have developed a somewhat different approach to the model theory of natural language a theory we call Situation Semantics . since one of my own motivations in the early days of this project was to use the Insights of generalized recursion theory to find a computationally plausible alternative to Montague Grammar It seems fitting to give a progress report here. 1. MODEL-THEORETIC SEMANTICS VERSUS PROCEDURAL SEMANTICS First however I can t resist putting my two cents worth Into this continuing discussion. Procedural semantics starts from the observation that there Is something computational about our understanding of natural language. This Is obviously correct. Where some go astray though Is in trying to identify the meaning of an expression with some sort of program run In the head. But programs are the sorts of things to HAVE meanings not to BE

• Báo cáo khoa học
• SOME COMPUTATIONAL ASPECTS
• SITUATION SEMANTICS
• Jon Barwise Philosophy
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