liuzh91 opened a new issue #17320: Add customized event handlers in ValidationHandler URL: https://github.com/apache/incubator-mxnet/issues/17320 ## Description Current `mxnet.gluon.contrib.ValidationHandler` does not support customized event handlers although `eval_fn` usually supports customized `EventHandler`. The code is shown below: ```python if self.epoch_period and self.current_epoch % self.epoch_period == 0: self.eval_fn(val_data=self.val_data) ``` ## References - https://github.com/apache/incubator-mxnet/blob/master/python/mxnet/gluon/contrib/estimator/event_handler.py
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