title: Can we specify the training and test document percentage in AWS comprehend Custom Entity Recognizer?
body: <p>I trained a custom entity recognizer using AWS comprehend for an entity extraction problem. The trained recognizer uses default train and test data-split which here splits test data more than train data. This affects the recognizer metrics. Also these values(number of train &amp; test documents) are higher than the total input "train.csv" file added in s3 bucket for training.
  Total number of inputs given in csv file : 1010
  Recognizer used train documents : 2480
  Recognizer used test document : 3270</p>