tailieunhanh - Báo cáo khoa học: "WORD EXPERT PARSING"

This paper describes an approach to conceptual analysis and understanding of natural language in which linguistic knowledge centers on individual words, and the analysis mechanisms consist of interactions among distributed procedural experts representing that knowledge. Each word expert models the process of diagnosing the intended usage of a particular word in context. The Word Expert Parser performs conceptual analysis through the Interactlons of tl~e individual experts, which ask questions and exchange information in converging on a single mutually acceptable sentence meaning. . | WORD EXPERT PARSING1 Steven L. Small Department of Computer Science University of Maryland College Park Maryland 20742 This paper describes an approach to conceptual analysis and understanding of natural language in which linguistic knowledge centers on Individual words and the analysis mechanisms consist of Interactions among distributed procedural experts representing that knowledge. Each word expert models the process of diagnosing the Intended usage of a particular word in context. The Word Expert Parser performs conceptual analysis through the Interactions of the Individual experts which ask questions and exchange information in converging on a single mutually acceptable sentence meaning. The Word Expert theory is advanced as a better cognitive model of natural language understanding than the traditional rule-based approaches. The Word Expert Parser models parts of the theory and the Important Issues of control and representation that arise in developing such a model form the basis of the technical discussion. An example from the prototype LISP implementation helps explain the theoretical results presented. I. Introduction Computational understanding of natural language requires complex Interactions among a variety of distinct yet redundant mechanisms. The construction of a computer program to perform such a task begins with the development of an organizational framework which Inherently Incorporates certain assumptions about the nature of these processes and the environment In which they take place. Such cognitive premises affect profoundly the scope and substance of computational analysis for comprehension as found In the program. This paper describes a theory of conceptual parsing which cotisiders knowledge about language to be distributed across a collection of procedural experts centered on Individual words. Natural language parsing with word experts entails several new hypotheses about the organization and representation of linguistic and pragmatic .