Artificial Intelligence - Special volume on qualitative reasoning about physical systems
Qualitative analysis of MOS circuits
Artificial Intelligence - Special volume on qualitative reasoning about physical systems
On the stability of the travelling salesman problem algorithm of Hopfield and Tank
Biological Cybernetics
Fundamentals of computer-aided circuit simulation
Fundamentals of computer-aided circuit simulation
Algorithmic mapping of neural network Models onto Parallel SIMD Machines
IEEE Transactions on Computers - Special issue on artificial neural networks
A New Complicated-Knowledge Representation Approach Based on Knowledge Meshes
IEEE Transactions on Knowledge and Data Engineering
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A systematic approach has been developed to construct neural networks for qualitative analysis and reasoning. These neural networks are used as specialized parallel distributed processors for solving constraint satisfaction problems. A typical application of such a neural network is to determine a reasonable change of a system after one or more of its variables are changed. A six-node neural network is developed to represent fundamental qualitative relations. A larger neural network can be constructed hierarchically for a system to be modeled by using six-node neural networks as building blocks. The complexity of the neural network building process is thus kept manageable. An example of developing a neural network reasoning model for a transistor equivalent circuit is demonstrated. The use of this neural network model in the equivalent circuit parameter extraction process is also described.