Rockey 1b41989934 [Feature] Add focal loss (#1024) ... * [Feature] add focal loss * fix the bug of 'non' reduction type * refine the implementation * add class_weight and ignore_index; support different alpha values for different classes * fixed some bugs * fix bugs * add comments * modify test * Update mmseg/models/losses/focal_loss.py Co-authored-by: Junjun2016 <hejunjun@sjtu.edu.cn> * update test_focal_loss.py * modified the implementation * Update mmseg/models/losses/focal_loss.py Co-authored-by: Jerry Jiarui XU <xvjiarui0826@gmail.com> * update focal_loss.py Co-authored-by: Junjun2016 <hejunjun@sjtu.edu.cn> Co-authored-by: Jerry Jiarui XU <xvjiarui0826@gmail.com>		2021-12-03 00:18:40 -08:00
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apis	[Enchance] Set a random seed when the user does not set a seed. (#1039)	2021-11-26 10:55:15 +08:00
core	[Fix] Change `self.loss_decode` back to `dict` in Single Loss situation. (#1002)	2021-11-01 15:28:37 +08:00
datasets	[Feature] Add Cutout transform (#1022)	2021-11-30 20:37:06 +08:00
models	[Feature] Add focal loss (#1024)	2021-12-03 00:18:40 -08:00
ops	[Dcos] Add header for files (#796)	2021-08-16 23:16:55 -07:00
utils	[Dcos] Add header for files (#796)	2021-08-16 23:16:55 -07:00
__init__.py	[Fix] Change the upper version of mmcv to 1.5.0 #1096	2021-12-01 21:16:23 +08:00
version.py	Bump v0.19.0 (#1009)	2021-11-03 05:27:20 +08:00