apunkt/GPy
1
0
Fork 0
mirror of https://github.com/SheffieldML/GPy.git synced 2026-05-24 14:15:14 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

fixed bug with the bias kernel.

Browse source
This commit is contained in:
James Hensman 2013-02-15 16:30:00 +00:00
parent bfd2166469
commit 57a751d70d
1 changed files with 5 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

8
GPy/models/sparse_GP.py
View file

@ -104,9 +104,11 @@ class sparse_GP(GP):
self.dL_dpsi2 += - 0.5 * self.likelihood.precision[:,None,None]/sf2 * self.D * self.C[None,:,:] # dC self.dL_dpsi2 += - 0.5 * self.likelihood.precision[:,None,None]/sf2 * self.D * self.C[None,:,:] # dC
self.dL_dpsi2 += - 0.5 * self.likelihood.precision[:,None,None]* self.E[None,:,:] # dD self.dL_dpsi2 += - 0.5 * self.likelihood.precision[:,None,None]* self.E[None,:,:] # dD
else: else:
self.dL_dpsi2 = 0.5 * self.likelihood.precision * self.D * self.Kmmi[None,:,:] # dB self.dL_dpsi2 = 0.5 * self.likelihood.precision * self.D * self.Kmmi # dB
self.dL_dpsi2 += - 0.5 * self.likelihood.precision/sf2 * self.D * self.C[None,:,:] # dC self.dL_dpsi2 += - 0.5 * self.likelihood.precision/sf2 * self.D * self.C # dC
self.dL_dpsi2 += - 0.5 * self.likelihood.precision * self.E[None,:,:] # dD self.dL_dpsi2 += - 0.5 * self.likelihood.precision * self.E # dD
#repeat for each of the N psi_2 matrices
self.dL_dpsi2 = np.repeat(self.dL_dpsi2[None,:,:],self.N,axis=0)
# Compute dL_dKmm # Compute dL_dKmm
self.dL_dKmm = -0.5 * self.D * mdot(self.Lmi.T, self.A, self.Lmi)*sf2 # dB self.dL_dKmm = -0.5 * self.D * mdot(self.Lmi.T, self.A, self.Lmi)*sf2 # dB