def checkpoint0(dataset):
        if dataset == 'MNIST':
            continuous=True
        else:
            RuntimeError('Case not implemented')

        load_dataset_from_name(dataset)

        model = VA(
            numberOfInducingPoints, # Number of inducing ponts in sparse GP
            batchSize,              # Size of mini batch
            dimX,                   # Dimensionality of the latent co-ordinates
            dimZ,                   # Dimensionality of the latent variables
            x_train,                   # [NxP] matrix of observations
            kernelType=kernelType,
            encoderType_qX=encoderType_qX,  # 'FreeForm', 'MLP', 'Kernel'.
            encoderType_rX=encoderType_rX,  # 'FreeForm', 'MLP', 'Kernel', 'NoEncoding'.
            encoderType_ru=encoderType_ru,  # 'FreeForm', 'MLP', 'NoEncoding'
            Xu_optimise=Xu_optimise,
            numHiddenUnits_encoder=numHiddenUnits_encoder,
            numHiddentUnits_decoder=numHiddentUnits_decoder,
            continuous=continuous
        )

        model.construct_L_using_r()

        model.setKernelParameters(0.01, 5*np.ones((2,)),
            1e-100, 0.5,
            [1e-10,1e-10], [10,10] )

        model.randomise()

        model.constructUpdateFunction()
        model = model.randomise()

        srng = utils.srng()

        return model, srng
Exemplo n.º 2
0
    continuous=True
)

va.randomise()
# va.Xz.set_value()
va.init_Xu_from_Xz()

theta = np.ones((1,dimX+1))*10
va.setKernelParameters(theta)

#va.printMemberTypes()
#va.printSharedVariables()
#va.printTheanoVariables()

va.construct_L()
va.constructUpdateFunction()

print "Training"
learning_rate = 1e-3
<<<<<<< HEAD
numberOfEpochs = 5
=======
numberOfEpochs = 1



>>>>>>> 239b2283cdf928f132f53629f00311930d891f57

va.train(numberOfEpochs=numberOfEpochs, printDiagnostics=10)

y_reconstr = va.create_new_data_function()