Connectionist model generation: A first-order approach

  • Authors:
  • Sebastian Bader;Pascal Hitzler;Steffen Hölldobler

  • Affiliations:
  • International Center for Computational Logic, Technische Universität Dresden, 01062 Dresden, Germany;Institute AIFB, Universität Karlsruhe (TH), 76128 Karlsruhe, Germany;International Center for Computational Logic, Technische Universität Dresden, 01062 Dresden, Germany

  • Venue:
  • Neurocomputing
  • Year:
  • 2008

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Abstract

Knowledge-based artificial neural networks have been applied quite successfully to propositional knowledge representation and reasoning tasks. However, as soon as these tasks are extended to structured objects and structure-sensitive processes as expressed e.g., by means of first-order predicate logic, it is not obvious at all what neural-symbolic systems would look like such that they are truly connectionist, are able to learn, and allow for a declarative reading and logical reasoning at the same time. The core method aims at such an integration. It is a method for connectionist model generation using recurrent networks with feed-forward core. We show in this paper how the core method can be used to learn first-order logic programs in a connectionist fashion, such that the trained network is able to do reasoning over the acquired knowledge. We also report on experimental evaluations which show the feasibility of our approach.