Never
Rarely
Sometimes
Often
Difficulty knowing where to begin
Understanding the data prior to modeling (EDA pipelines)
Diagnosing and improving an ML model
Insufficient computing capabilities (memory, storage space, lack of GPUs, etc.)
Time and efficiency in staying up-to-date on latest methods
Library changes / inconsistencies
Insufficient quantity or quality of data
Lack of model explainability or interpretability
Ensuring fairness and appropriate model/data bias
Regulatory concerns (compliance with laws around protected data, auditing, FERPA, HIPAA, IRB, etc.)
Safety concerns and responsible use
Communicating results with stakeholders