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Universidad de Alicante


Construcción de analizadores híbridos de lenguajes naturales

Referencia: TIC97-0671--C02-02
Financiación: Comisión Interministerial de Ciencia y Tecnología
Periodo: desde 01/08/1997 hasta 31/07/2000
Director: Palomar Sanz, Manuel
Miembros: Ferrández Rodríguez, Antonio
Gómez Ortega, Jaime
Martínez Barco, Patricio Manuel
Muñoz Guillena, Rafael
Saiz Noeda, Maximiliano
Suárez Cueto, Armando
Resumen del projecto:
The development of systems for Natural Language processing has specific difficulties when we want to achieve
a wide coverage of the language. Some well characterised linguistic phenomena (anaphora, ellipsis,...), and the
phenomena characteristics of the spontaneous speech, which could produce syntactically incorrect sentences,
must be considered. These problems can be raised from a deductive point of view, through the design of a
language model from the linguistic knowledge, or can be raised through the application of inductive learning
techniques from data. On the other hand, attending to the output that the system must supply, one of
the most interesting possibility is that the system give us the meaning of the input sentences, in terms of a
semantic language. This kind of semantic output could be used in later processes (translation, execution
of actions, etc.). The main objective of this project is the development of language understanding systems
in semantically constrained tasks. We will develop different deductive methodologies of analysis, as it is
habitual in the Natural Language area, and some inductive learning techniques, which are successfully
used in the Automatic Speech Recognition area. The co-operation of these two approaches will allow us
to develop Natural Language processing systems more and more complex. The main aspects to be studied
are the estimation of statistic regular models and the construction of context-free grammars in order to
represent the characteristics of the language of the task, and the development of analyzers which supply
the semantic messages of the input sentences.

Departamento de Lenguajes y Sistemas Informáticos

Universidad de Alicante, carretera San Vicente s/n

03690 San Vicente del Raspeig, Alicante (Spain)

Tel: (+34) 96 590 3772

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