liuzh47

## Description ## (Brief description on what this PR is about) [BUGFIX] A bug fix of sentiment analysis training script. trainer.update(1) should be used after loss.mean() is called. ## Checklist...

## Description ## `fit()` and `evaluate()` methods of the base `Estimator` class support inputs from `iterable Object`. Fix #17124 ## Checklist ## ### Essentials ### - [ ] Changes are...