Marzuk Kamal rollingstone

rollingstone / gist:425bda3f02aa4b36f43246ff320a280c

Created August 13, 2016 20:09 — forked from dmaniry/gist:5170087

ZCA whitening (http://ufldl.stanford.edu/wiki/index.php/Implementing_PCA/Whitening)

	import numpy as np
	from scipy import linalg
	from sklearn.utils import array2d, as_float_array
	from sklearn.base import TransformerMixin, BaseEstimator


	class ZCA(BaseEstimator, TransformerMixin):

	def __init__(self, regularization=10**-5, copy=False):
	self.regularization = regularization

rollingstone / hmm.py

Created May 13, 2016 11:32 — forked from jzelner/hmm.py

Example of the Forward-Backward algorithm implemented using Theano

	#Forward-backward algorithm implementation in Theano,
	#with example taken from Wikipedia:
	#http://en.wikipedia.org/wiki/Forward%E2%80%93backward_algorithm

	import theano
	import theano.tensor as T
	import numpy as np

	#Set up vectors, etc to represent
	#observations, indexes into the observation

rollingstone / fcn_bench.py

Created March 15, 2016 15:27 — forked from mmmikael/fcn_bench.py

fcn benchmark

	from keras.models import Sequential
	from keras.layers.core import Permute
	from keras.layers.convolutional import Convolution2D
	from keras.layers.core import Activation
	import theano
	import theano.tensor as T
	import datetime
	import numpy as np

	now = datetime.datetime.now