sklearn gaussian process user warning.

[michellemay]

I get lot of warnings from sklearn gaussian process:

/usr/local/lib/python3.6/dist-packages/sklearn/gaussian_process/gpr.py:457: UserWarning: fmin_l_bfgs_b terminated abnormally with the state: {'grad': array([ 0.20470272]), 'task': b'ABNORMAL_TERMINATION_IN_LNSRCH', 'funcalls': 59, 'nit': 7, 'warnflag': 2} " state: %s" % convergence_dict)

I'm using scikit-learn 0.19.2

[tobegit3hub]

I am using scikit-learn 0.19.1 and did not have this warning.

Can you provide the study configuration(search space) and I can try in local environment? @michellemay

[michellemay]

Same setup as my other issue: #11