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Pattern Similarity and Storage Capacity of Hopfield Network Suman K Manandhar Prof. Ramakoti Sadananda Computer Science and Information Management AIT.

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Presentation on theme: "Pattern Similarity and Storage Capacity of Hopfield Network Suman K Manandhar Prof. Ramakoti Sadananda Computer Science and Information Management AIT."— Presentation transcript:

1 Pattern Similarity and Storage Capacity of Hopfield Network Suman K Manandhar Prof. Ramakoti Sadananda Computer Science and Information Management AIT

2 Neural Networks To understand the nature To solve practical problems – Engineering.

3 Some Paradigms Perceptron – McCulloch-Pitts Multi layer networks – back propagation algorithms. Self-organizing maps Hopfield networks – recurrent networks

4 Hopfield Model Simple ON/OFF nodes connected by a weight matrix W Has pattern recognition and error correction properties

5 Dynamical Systems Basins of attraction – Fixed points Limit Cycles

6 OCR Applications

7 Grid Representation

8 Capacities This indicates the number of distinct patterns a network can hold

9 Patterns with Low Dh Similar patterns

10 Effect of Noise Such patterns become indistinguishable after noise corruption

11 Internet as Dynamic System A highly interconnected system where every node is independently operating. Self-Organization OR Chaos

12 COMPLEXITY SYSTEMSSELF-ORGANIZATION CHAOS


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