tailieunhanh - Báo cáo khoa học: "NATURAL LANGUAGE INPUT FOR SCENE GENERATION "

In this paper a system which understands and conceptualizes scenes descriptions in natural language is presented. Specifically, the following components of the system are described: the syntactic analyzer, based on a Procedural Systemic Grammar, the semantic analyzer relying on the Conceptual Dependency Theory, and the dictionary. | NATURAL LANGUAGE INPUT FOR SCENE GENERATION Giovanni Adorni Mauro Di Manzo Istituto di Elettrotecnica University of Genoa Viale 13 16145 Genoa Italy Giacomo Ferrari Istituto di Linguistica Computazionale CNR Via della Faggiola 56100 Pisa Italy ABSTRACT In this paper a system which understands and conceptualizes scenes descriptions in natural language is presented. Specifically the following components of the system are described the syntactic analyzer based on a Procedural Systemic Grammar the semantic analyzer relying on the Conceptual Dependency Theory and the dictionary. I INTRODUCTION In this paper a system is presented which under stands and conceptualizes scenes descriptions in natural language Italian and produces simple stat ic images of the scenes. It is part of a larger project that aims at understanding the description of static scenes reasoning in case of incompleteness or inconsistency and dialoguing about them and finally generating and displaying them. The Input Analyzer IA of the system is the most stable end experimented component and it is the topic of this paper. It consists of a Syntactic Analyzer a Cognitive Data Base CDB and a Semantic Interpreter. II SYNTACTIC ANALYZER The syntactic analysis is performed by means of a Procedural Systemic Grammar PSG McCord 77 . The main characteristics of the PSG parser is that the operation flow is highly structured since different levels of the analysis are associated to the syntactic units of the sentence. Five processes can be activated CLAUSE and devoted to recognize respectively i the sentences ii the propositional phrases comparatives quantification and noun phrases iii the components of the noun phrases iv the adjectives and their modifiers v the verb and its modifiers. shows how these processes can interact in our parser double arrows indicate message passing and Work supported by . under grant 27430 81 single arrows indicate reading from input. Each