The domain expert/specialist is a key role for the success of any machine learning project and his specific value will be in the following areas:
- Definition of problem statement and help in correctly understanding the expectations of the solution
- Data preparation:
- What are good candidates to be selected in feature engineering and kept as predictor attributes?
- How to combine multiple objectives/attributes that would help solve the problem statement
- How to sample to select the test set and training set
- Help in data cleaning
- Progress monitoring and result interpretation:
- Defining the accuracy of prediction required
- Determining if more data/additional ...