The TRIPLE Hybrid Cognitive Architecture: Connectionist Aspects

  • Authors:
  • Maurice Grinberg;Vladimir Haltakov

  • Affiliations:
  • Central and East European Center for Cognitive Science, New Bulgarian University, Bulgaria;Central and East European Center for Cognitive Science, New Bulgarian University, Bulgaria and Sofia University “St. Kliment Okhridsky”, Bulgaria

  • Venue:
  • Proceedings of the 2009 conference on Neural Nets WIRN09: Proceedings of the 19th Italian Workshop on Neural Nets, Vietri sul Mare, Salerno, Italy, May 28--30 2009
  • Year:
  • 2009

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Abstract

This paper introduces a recently proposed hybrid cognitive model, called TRIPLE focusing on its connectionist aspects. They are demonstrated on a series of schematic and realistic examples of analogy based retrieval from memory. The model integrates three modules which run in parallel: serial reasoning, connectionist and emotion engines. The serial reasoning engine deals with the current task, processes perceptual input, plans and performs actions, and synchronizes the activity the other two engines. Its special feature is formal reasoning. This paper focuses on the connectionist engine and the formalism behind it and how it compares to existing approaches. The connectionist engine can be considered as standalone model of retrieval from memory and mapping to the current task. It is based on a series of distributed re-representations of semantic net like symbolic localist representations of knowledge. The distributed representation building mechanisms proposed can reflect taxonomic, relational, semantic or other structure of the long term memory. The representations obtained are made dynamic by a complementary activation spreading process. The mapping-to-task mechanisms of the connectionist module are based on a dynamic similarity evaluation between task and memory content and simultaneous selection of the best mappings by a constraint satisfaction network.