Mercurial > pylearn
view sandbox/rbm/main.py @ 472:69c800af1370
changed weight initialization for logistic regression
author | James Bergstra <bergstrj@iro.umontreal.ca> |
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date | Thu, 23 Oct 2008 13:26:42 -0400 |
parents | c2e6a8fcc35e |
children |
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#!/usr/bin/python """ Simple SGD RBM training. (An example of how to use the model.) """ import numpy nonzero_instances = [] #nonzero_instances.append({0: 1, 1: 1}) #nonzero_instances.append({0: 1, 2: 1}) nonzero_instances.append({1: 0.1, 5: 0.5, 9: 1}) nonzero_instances.append({2: 0.3, 5: 0.5, 8: 0.8}) nonzero_instances.append({1: 0.2, 2: 0.3, 5: 0.5}) import model model = model.Model(input_dimension=10, hidden_dimension=6) for i in xrange(100000): # Select an instance instance = nonzero_instances[i % len(nonzero_instances)] # SGD update over instance model.update([instance])