Separate learning system and method using two-layered neural...

Details Separate learning system and method using two-layered neural... Separate learning system and method using two-layered neural...

2006-07-14

2010-06-08

Vincent, David R (Department: 2129)

Data processing: artificial intelligence

Neural network

Learning method

Reexamination Certificate

active

07734555

ABSTRACT:
Disclosed herein is a separate learning system and method using a two-layered neural network having target values for hidden nodes. The separate learning system of the present invention includes an input layer for receiving training data from a user, and including at least one input node. A hidden layer includes at least one hidden node. A first connection weight unit connects the input layer to the hidden layer, and changes a weight between the input node and the hidden node. An output layer outputs training data that has been completely learned. The second connection weight unit connects the hidden layer to the output layer, changing a weight between the output and the hidden node, and calculates a target value for the hidden node, based on a current error for the output node. A control unit stops learning, fixes the second connection weight unit, turns a learning direction to the first connection weight unit, and causes learning to be repeatedly performed between the input node and the hidden node if a learning speed decreases or a cost function increases due to local minima or plateaus when the first connection weight unit is fixed and learning is performed using only the second connection weight unit, thus allowing learning to be repeatedly performed until learning converges to the target value for the hidden node.

REFERENCES:
Bumghi et al (“Alternate Learning Algorithm on Multilayer Perceptrons” 2006).
Bumghi Choi's “Seperately Trained Two-Layered Networks with the Target Values of Hidden Units”.
Choi, Bumghi “Separately Trained Two-Layered Networks With the Target Values of Hidden Units” The Florida State University College of Arts and Sciences. 1995.

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