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1.7.1计算导数使用theano.tensor.grad() 函数计算梯度>>> import theano>>> import theano.tensor as T>>> from theano import pp>>> x = T.dscalar('x')>>> y = x ** 2>>> gy = T.grad(y, x)>>> pp(gy)'((fill((x ** TensorCons... 阅读全文
posted @ 2014-06-06 15:00
fireae
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theano 实例， 逻辑回归（logistic regression)# -*- coding: utf-8 -*-"""Created on Fri Jun 06 08:56:54 2014@author: Administrator"""import theanoimport numpy as npimport theano.tensor as Tdef logistic_regressio... 阅读全文
posted @ 2014-06-06 14:55
fireae
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# -*- coding: utf-8 -*-"""Created on Thu Jun 05 17:48:31 2014@author: Administrator"""import theanoimport numpy as npimport theano.tensor as Tfrom theano.sandbox.rng_mrg import MRG_RandomStreamsfrom t... 阅读全文
posted @ 2014-06-06 14:12
fireae
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使用共享变量# -*- coding: utf-8 -*-"""Created on Wed Jun 4 23:28:21 2014@author: wencc"""from theano import sharedfrom theano import functionimport theano.tensor as Tif __name__ == '__main__':state = shared... 阅读全文
posted @ 2014-06-06 13:58
fireae
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theano 入门教程1.3给一个参数设置默认值# -*- coding: utf-8 -*-"""Created on Wed Jun 4 23:22:17 2014@author: wencc"""import theano.tensor as Tfrom theano import functionfrom theano import Paramfrom theano import ppif... 阅读全文
posted @ 2014-06-06 13:46
fireae
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