24edeb20221803c592d9bc2c4f428fb9697358b7,gpytorch/inference/posterior_models/exact_gp_posterior.py,_ExactGPPosterior,forward,#_ExactGPPosterior#,44

Before Change

            test_test_covar = full_covar[n:, n:]

            // Calculate posterior components
            if self.alpha.numel():
                alpha = Variable(self.alpha)
            else:
                alpha = gpytorch.exact_posterior_alpha(train_train_covar, train_mean, Variable(self.train_y))
                self.alpha.resize_as_(alpha.data).copy_(alpha.data)
            test_mean = gpytorch.exact_posterior_mean(test_train_covar, test_mean, alpha)

After Change

            test_test_covar = full_covar[n:, n:]

            // Calculate posterior components
            if not hasattr(self, "alpha"):
                self.alpha = gpytorch.exact_posterior_alpha(train_train_covar, train_mean, Variable(self.train_y))
            test_mean = gpytorch.exact_posterior_mean(test_train_covar, test_mean, self.alpha)
            test_covar = gpytorch.exact_posterior_covar(test_test_covar, test_train_covar,
                                                        train_test_covar, train_train_covar)

Instances