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changeset 978:ab4bc97ca060

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mcRBM - particles initialized w randn instead of rand()
author James Bergstra <bergstrj@iro.umontreal.ca>
date Mon, 23 Aug 2010 16:04:31 -0400
parents 9cac1ecaeef7
children 2a53384d9742
files pylearn/algorithms/mcRBM.py
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/pylearn/algorithms/mcRBM.py	Mon Aug 23 16:04:10 2010 -0400
+++ b/pylearn/algorithms/mcRBM.py	Mon Aug 23 16:04:31 2010 -0400
@@ -287,7 +287,7 @@
     def hmc_sampler(self, n_particles=100, seed=7823748):
         return HMC_sampler(
             positions = [as_shared(
-                np.random.RandomState(seed^20893).rand(
+                np.random.RandomState(seed^20893).randn(
                     n_particles,
                     self.n_visible ))],
             energy_fn = lambda p : self.free_energy_given_v(p[0]),