What is the best ration to divide my image dataset into train/validation for Mask_RCNN? : <p>I have 13k images , i want to choose the best ratio to divide
my dataset into train/validation to use this model 
<a href="https://github.com/matterport/Mask_RCNN" rel="nofollow noreferrer">https://github.com/matterport/Mask_RCNN</a>
for object detection and instance segmentation</p>
