1e-4 min inferred noise

Summary: for improved stability during fitting

Reviewed By: Balandat

Differential Revision: D15968900

fbshipit-source-id: a638140f31889c441774c4bf92ee01f310dd96a3

Author: Daniel Jiang

botorch/models/gp_regression.py

@@ -32,7 +32,7 @@
 from .utils import multioutput_to_batch_mode_transform
 
 
-MIN_INFERRED_NOISE_LEVEL = 1e-6
+MIN_INFERRED_NOISE_LEVEL = 1e-4
 
 
 class SingleTaskGP(BatchedMultiOutputGPyTorchModel, ExactGP):