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Code Issues Projects Releases Wiki Activity

hyperparameter evolution update (#566)

pull/498/head
Glenn Jocher 2020-08-02 10:32:04 -07:00
parent 305c6a028a
commit f1096b2cf7
1 changed files with 4 additions and 3 deletions
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7
train.py
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@ -213,6 +213,7 @@ def train(hyp, opt, device, tb_writer=None):
# Start training
t0 = time.time()
nw = max(3 * nb, 1e3) # number of warmup iterations, max(3 epochs, 1k iterations)
# nw = min(nw, (epochs - start_epoch) / 2 * nb) # limit warmup to < 1/2 of training
maps = np.zeros(nc) # mAP per class
results = (0, 0, 0, 0, 0, 0, 0) # 'P', 'R', 'mAP', 'F1', 'val GIoU', 'val Objectness', 'val Classification'
scheduler.last_epoch = start_epoch - 1 # do not move
@ -477,8 +478,8 @@ if __name__ == '__main__':
'anchor_t': (1, 2.0, 8.0), # anchor-multiple threshold
'fl_gamma': (0, 0.0, 2.0), # focal loss gamma (efficientDet default gamma=1.5)
'hsv_h': (1, 0.0, 0.1), # image HSV-Hue augmentation (fraction)
'hsv_s': (1, 0.0, 0.8), # image HSV-Saturation augmentation (fraction)
'hsv_v': (1, 0.0, 0.8), # image HSV-Value augmentation (fraction)
'hsv_s': (1, 0.0, 0.9), # image HSV-Saturation augmentation (fraction)
'hsv_v': (1, 0.0, 0.9), # image HSV-Value augmentation (fraction)
'degrees': (1, 0.0, 45.0), # image rotation (+/- deg)
'translate': (1, 0.0, 0.9), # image translation (+/- fraction)
'scale': (1, 0.0, 0.9), # image scale (+/- gain)
@ -495,7 +496,7 @@ if __name__ == '__main__':
if opt.bucket:
os.system('gsutil cp gs://%s/evolve.txt .' % opt.bucket) # download evolve.txt if exists
for _ in range(10): # generations to evolve
for _ in range(100): # generations to evolve
if os.path.exists('evolve.txt'): # if evolve.txt exists: select best hyps and mutate
# Select parent(s)
parent = 'single' # parent selection method: 'single' or 'weighted'