Never
Rarely
Sometimes
Often
Understanding the data prior to modeling (EDA pipelines)
Diagnosing and improving an ML model
Insufficient computing capabilities (memory, storage space, lack of GPUs, etc.)
Insufficient quantity of data
Insufficient quality of data
Lack of model explanability
Undesirable forms of model bias
Moral concerns (privacy, safety, transparency, bias, potential for harm, ensuring fairness, etc.)
Regulatory concerns (compliance with laws around protected data, auditing, FERPA, HIPAA, IRB, etc.)
ML Library changes / inconsistencies
Difficulty knowing where to begin
Communicating results with stakeholders
Feature selection / feature engineering