# evaluator

## Accuracy

class `paddle.fluid.evaluator.``Accuracy`(input, label, k=1, **kwargs)

  Average Accuracy for multiple mini-batches.

## ChunkEvaluator

class `paddle.fluid.evaluator.``ChunkEvaluator`(input, label, chunk_scheme, num_chunk_types, excluded_chunk_types=None)

  Accumulate counter numbers output by chunk_eval from mini-batches and compute the precision recall and F1-score using the accumulated counter numbers.