From 0a4deeefcdcf1997df18dd14dbb7135e505c34eb Mon Sep 17 00:00:00 2001 From: Andreas Date: Wed, 17 Jul 2013 18:18:00 +0100 Subject: [PATCH] stick_bgplvm to original version with rbf --- GPy/examples/dimensionality_reduction.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/GPy/examples/dimensionality_reduction.py b/GPy/examples/dimensionality_reduction.py index de406773..24e4f03c 100644 --- a/GPy/examples/dimensionality_reduction.py +++ b/GPy/examples/dimensionality_reduction.py @@ -378,11 +378,10 @@ def stick(): def stick_bgplvm(model=None): data = GPy.util.datasets.stick() Q = 6 - kernel = GPy.kern.rbf_inv(Q, ARD=True) + GPy.kern.bias(Q, np.exp(-2)) + GPy.kern.white(Q, np.exp(-2)) - m = BayesianGPLVM(data['Y'], Q, init="PCA", num_inducing=35,kernel=kernel) + kernel = GPy.kern.rbf(Q, ARD=True) + GPy.kern.bias(Q, np.exp(-2)) + GPy.kern.white(Q, np.exp(-2)) + m = BayesianGPLVM(data['Y'], Q, init="PCA", num_inducing=20,kernel=kernel) # optimize m.ensure_default_constraints() - m.constrain_bounded('.*rbf_inv',1e-5, 100) m.optimize(messages=1, max_iters=3000,xtol=1e-300,ftol=1e-300) m._set_params(m._get_params()) plt.clf, (latent_axes, sense_axes) = plt.subplots(1, 2)