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Báo cáo khoa học: "THE TEXTUAL DEVELOPMENT OF NON-STEREOTYPIC CONCEPTS"

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The basic premise of the KONTEXT model is that new concepts are communicated by using the mechanisms of text constitution. The text model used assumes that the information conveyed in a text and the information describing its contextual organization can be structured into five layers (sentence structure, information on thematic progression, referential structure, conceptual representation of the text and conceptual background knowledge). | THE TEXTUAL DEVELOPMENT OF NON-STEREOTYPIC CONCEPTS Karin Haenelt and Michael Kõnyves-Tóth Integrated Publication and Information Systems Institute IPSI GMD DolivostraBe 15 D 6100 Darmstadt Germany haenelt@ipsi.dannstadt.gmd.dbp.de koenyves@ipsi.darmstadt.gmd.dbp.de tel. 49 0 6151 875-811 fax-818 ABSTRACT In this paper the text theoretical foundation of our text analysis system KONTEXT is described. The basic premise of the KONTEXT model is that new concepts are communicated by using the mechanisms of text constitution. The text model used assumes that the information conveyed in a text and the information describing its contextual organization can be structured into five layers sentence structure information on thematic progression referential structure conceptual representation of the text and conceptual background knowledge . The text analysis component constructs and traverses the information of these layers under control of the discourse development. In this way it can incrementally construct a textual view on knowledge rather than only recognizing precoded concepts. 1 INTRODUCTION In the field of knowledge-based text analysis it has been regarded as insufficient to analyze a text against the background of static and stereotypic default assumptions for some time cf. Hell-wig84 Scha Bruce Polanyi87 . By applying this method the pre-coded concepts are invoked again and again during the process of text analysis regardless of the changes and the new concepts being constituted by the ongoing text. The function of a text however is not confined to concept selection as in current knowledge-based applications. In addition textual mechanisms are used to operate on concepts and to compose them to actual contexts i.e. to constitute new concepts. Textually the contexts are established by the thematic and by the referential structure. Thus new mecha nisms are required which permit the textual organization to control the creation and manipulation of concepts in text .

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