- Task 1 - Character Recognition - Method: Subm190426_ensemble01
- Method info
- Samples list
- Per sample details
method: Subm190426_ensemble012019-04-26
Authors: ShaoAn Lu
Description: An ensemble approach using two ResNet50 (imagenet pre-trained) networks in which one is case sensitive and another is not. The predictions are first generated by the non-sensitive model and refined by the case-sensitive model. We first trained our model using cross entropy with class weights and heuristically switched to label smoothing cross entropy at some point. Data augmentations are also applied: random cropping/rotating/lightening/zooming, random affine transformation, and random cutout. Other tricks including discriminative layer training and progressively input resolution increasing are also introduced.
Name: Shao-An Lu (呂紹安)
Organization: awesome techno