A Hybrid Symbolic/Connectionist Model for Noun Phrase Understanding |
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Authors: | STEFAN WERMTER WENDY G LEHNERT |
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Affiliation: | Department of Computer and Information Science , University of Massachusetts at Amherst , Amherst , MA , 01003 , USA Phone: (413)545-3639 |
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Abstract: | This paper describes a hybrid model which integrates symbolic and connectionist techniques for the analysis of noun phrases. Our model consists of three levels: (1) a distributed connectionist level, (2) a localist connectionist level, and (3) a symbolic level. While most current systems in natural language processing use techniques from only one of these three levels, our model takes advantage of the virtues of all three processing paradigms. The distributed connectionist level provides a learned semantic memory model. The localist connectionist level integrates semantic and syntactic constraints. The symbolic level is responsible for restricted syntactic analysis and concept extraction. We conclude that a hybrid model is potentially stronger than models that rely on only one processing paradigm. |
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Keywords: | Natural language processing connectionism hybrid models parallel distributed processing relaxation networks backpropagation connectionist/symbolic systems |
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