tailieunhanh - Báo cáo khoa học: "AMBIGUITY RESOLUTION IN THE HUMAN SYNTACTIC PARSER: AN EXPERIMENTAL STUDY"

This paper presents in summary form some major points of Chapter 3 of Kurtzman, 1984.) Models of the human syntactic parsing mechanism can be classified according to the ways in which they operate upon ambiguous input. Each mode of operation carries particular requirements concerning such basic computational characteristics of the parser as i t s storage capacities and the scheduling of i t s processes, and so specifying which mode is actually embodied in human parsing is a useful approach to determining the functional organization of the human parser. In Section l , a preliminary taxonomy of parsing models. | AMBIGUITY RESOLUTION IN THE HUMAN SYNTACTIC PARSER AN EXPERIMENTAL STUDY Howard s. Kurtzman Department of Psychology Massachusetts Institute of Technology Cambridge MA 02139 This paper presents in summary form some major points of Chapter 3 of Kurtzman 1984. Models of the human syntactic parsing mechanism can be classified according to the ways in which they operate upon ambiguous input. Each mode of operation carries particular requirements concerning such basic computational characteristics of the parser as its storage capacities and the scheduling of its processes and so specifying which mode is actually embodied in human parsing is a useful approach to determining the functional organization of the human parser. In Section 1 a preliminary taxonomy of parsing models is presented based upon a consideration of modes of handling ambiguities and then in Section 2 psycholinguistic evidence is presented which indicates what type of model best describes the human parser. 1. Parsing Models Parsing models can be initially classified according to two basic binary features. One feature is-whether the model immediately analyzes an ambiguity . determines structure for the ambiguous portion of the string as soon as that portion begins or delays the analysis . determines structure only after further material of the string is received. The other feature is whether the model constructs just a single analysis of the ambiguity at one time or instead constructs multiple analyses in parallel The following account develops and complicates this initial classification scheme. Not every type of model described here has actually been proposed in the literature. The purpose here is to outline the space of possibilities so that a freer exploration and clearer evaluation of types can be made. An Immediate Single Analysis ISA model is characterized by two properties 1 An ambiguity is resolved as soon as it arises . on its first word or morpheme 2 the analysis that serves as the .

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