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Integrating Neural and Symbolic Approaches: A Symbolic Learning Scheme for a Connectionist Associative Memory

 

作者: JOERGP. UEBERLA,   ARUN JAGOTA,  

 

期刊: Connection Science  (Taylor Available online 1993)
卷期: Volume 5, issue 3-4  

页码: 377-393

 

ISSN:0954-0091

 

年代: 1993

 

DOI:10.1080/09540099308915706

 

出版商: Taylor & Francis Group

 

关键词: Associative memory;neural networks;symbolic representation

 

数据来源: Taylor

 

摘要:

This paper deals with the integration of neural and symbolic approaches. It focuses on associative memories where a connectionist architecture tries to provide a storage and retrieval component for the symbolic level. In this light, the classic model for associative memory, the Hopfield network is briefly reviewed. Then, a new model for associative memory, the hybrid Hopfield-clique network is presented in detail. Its application to a typically symbolic task, the post -processing of the output of an optical character recognizer, is also described. In the author's view, the hybrid Hopfield -clique network constitutes an example of a successful integration of the two approaches. It uses a symbolic learning scheme to train a connectionist network, and through this integration, it can provide perfect storage and recall. As a conclusion, an analysis of what can be learned from this specific architecture is attempted. In the case of this model, a guarantee for perfect storage and recall can only be given because it was possible to analyze the problem using the well-defined symbolic formalism of graph theory. In general, we think that finding an adequate formalism for a given problem is an important step towards solving it.

 

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