Biological Cybernetics

, Volume 65, Issue 2, pp 129–133 | Cite as

Suboptimum solutions obtained by the Hopfield-Tank neural network algorithm



The neural network method of Hopfield and Tank claims to be able to find nearly-optimum solutions for discrete optimization problems, e.g. the travelling salesman problem. In the present paper, an example is given which shows that the Hopfield-Tank algorithm systematically prefers certain solutions even if the energy values of these solutions are clearly higher than the energy of the global minimum.


Neural Network Global Minimum Travel Salesman Problem Discrete Optimization Suboptimum Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • D. Kunz
    • 1
  1. 1.Philips GmbH Forschungslaboratorium AachenAachenGermany

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