How to do an NLG Evaluation: Task-Based (Extrinsic) Performance in Real-World Context
Advice on how to evaluate an NLG system by getting people to use it in the real world, and then measuring how effective the system was.
Tag: ecological validity
Types of NLG Evaluation: Which is Right for Me?
A high-level discussion of the different ways of evaluating NLG systems.
Ehud Reiter's Blog 