Draft: Fixing gaussian regression
Some minor code changes in order to fix Gaussian regression. Details about the changes:
- predictionwriter.py L.162: attached some zeros in order not to run into shape-related errors
- task.py L.164: applied a softplus function and the necessary scaling in order to obtain the correct values for sigma (compare L.207)
- task.py L.209: reshaped mean and sigmas to be in proper format for the loss function (main bug)
In general it is necessary that the Gaussian regression tasks are named "gaussian_regression" in order for the changes to work.