liuzh91 opened a new pull request #16971: Extend estimator.evaluate() to support event handlers URL: https://github.com/apache/incubator-mxnet/pull/16971 ## Description ## Motivated by the issue #16959, we find that we could use existing `LoggingHandler` and `MetricHandler` for validation purpose. We extend `estimator.evaluate()` to support default and customized handlers. Our contributions can be summarized below: - We extend estimator.evaluate() to support event_handlers - We replace the metrics in estimator constructor with train_metrics and val_metrics - We decouple the dependence of default event handlers on training or validation metrics - We add test script to verify the correctness of evaluate function Fix #16959.
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