tailieunhanh - Báo cáo khoa học: "TOWARDS BETTER UNDERSTANDING"

The tutor is part of a large R&D project in ITS which resulted in a system (called DART~ for the design and development of intelligent teaching dialogues on PLATO I and in a program (called ELISA~ for teaching foreign language conjunctions in context. ELISA was able to teach a few conjunctions in English, Dutch and Italian. | TOWARDS BETTER UNDERSTANDING OF ANAPHORA Barbara Dunin-Kgplicz Institute of Informatics Warsaw University . Box 1210 00-901 Warszawa Poland ABSTRACT This paper presents a syntactical method of interpreting pronouns in Polish. Using the surface structure of the sentence as well as grammatical and inflexional information accessible during syntactic analysis an area of reference is marked out tor each personal and possessive pronoun. This area consists of a few internal areas inside the current sentence and an external area . the part of the text preceding it. In order to determine that area of reference several syntactic sentence-level restrictions on anaphora interpretation are formulated. Next when looking at the area of pronoun s reference all NPs which number--gender agree with the pronoun can be selected and this way the set of surface referents of each pronoun can be created. It can be used as data for further semantic analysis. I INTRODUCTION Reference is one of the central concepts of any linguistic theory. In recent research into anaphora the term reference has been used in three different senses Szwedek 1981 a as a relation between the name and the thing named Hall Partee 1978 b as an association between noun phrases and mental entities in the language user s Nash-Webber 1978 c as an association between the occurrence of phrases in the text Reinhart 1981 However the reference is understood in order to interpret correctly anaphora on the semantic level a and b first a stage c is necessary. In this paper I have taken the point of view presented under c . I shall discuss the problem of anaphora in Polish sentences. My attention is focused on personal and possessive pronouns explicitely occurring in the text and moreover on zero pronouns . ellipsis of NP in the subject position specific for Slavonic languages. My purpose in the description of regularities of the reference in the Polish language. I shall express them by defining the area of pronoun s .