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Create misc.py
Browse files- utils/misc.py +122 -0
utils/misc.py
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import math
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import numpy as np
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def get_prompt_templates():
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prompt_templates = [
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'{}.',
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'a photo of a {}.',
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'a bad photo of a {}.',
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'a photo of many {}.',
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'a sculpture of a {}.',
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'a photo of the hard to see {}.',
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'a low resolution photo of the {}.',
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'a rendering of a {}.',
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'graffiti of a {}.',
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'a bad photo of the {}.',
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'a cropped photo of the {}.',
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'a tattoo of a {}.',
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'the embroidered {}.',
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'a photo of a hard to see {}.',
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'a bright photo of a {}.',
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'a photo of a clean {}.',
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'a photo of a dirty {}.',
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'a dark photo of the {}.',
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'a drawing of a {}.',
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'a photo of my {}.',
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'the plastic {}.',
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'a photo of the cool {}.',
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'a close-up photo of a {}.',
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'a black and white photo of the {}.',
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'a painting of the {}.',
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'a painting of a {}.',
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'a pixelated photo of the {}.',
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'a sculpture of the {}.',
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'a bright photo of the {}.',
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'a cropped photo of a {}.',
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'a plastic {}.',
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'a photo of the dirty {}.',
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'a jpeg corrupted photo of a {}.',
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'a blurry photo of the {}.',
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'a photo of the {}.',
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'a good photo of the {}.',
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'a rendering of the {}.',
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'a {} in a video game.',
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'a photo of one {}.',
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'a doodle of a {}.',
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'a close-up photo of the {}.',
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'the origami {}.',
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'the {} in a video game.',
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'a sketch of a {}.',
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'a doodle of the {}.',
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'a origami {}.',
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'a low resolution photo of a {}.',
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'the toy {}.',
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'a rendition of the {}.',
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'a photo of the clean {}.',
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'a photo of a large {}.',
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'a rendition of a {}.',
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'a photo of a nice {}.',
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'a photo of a weird {}.',
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'a blurry photo of a {}.',
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'a cartoon {}.',
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'art of a {}.',
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'a sketch of the {}.',
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'a embroidered {}.',
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'a pixelated photo of a {}.',
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'itap of the {}.',
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'a jpeg corrupted photo of the {}.',
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'a good photo of a {}.',
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'a plushie {}.',
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'a photo of the nice {}.',
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'a photo of the small {}.',
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'a photo of the weird {}.',
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'the cartoon {}.',
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'art of the {}.',
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'a drawing of the {}.',
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'a photo of the large {}.',
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'a black and white photo of a {}.',
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'the plushie {}.',
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'a dark photo of a {}.',
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'itap of a {}.',
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'graffiti of the {}.',
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'a toy {}.',
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'itap of my {}.',
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'a photo of a cool {}.',
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'a photo of a small {}.',
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'a tattoo of the {}.',
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]
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return prompt_templates
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def prompt_engineering(classnames, topk=1, suffix='.'):
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prompt_templates = get_prompt_templates()
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temp_idx = np.random.randint(min(len(prompt_templates), topk))
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if isinstance(classnames, list):
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classname = random.choice(classnames)
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else:
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classname = classnames
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return prompt_templates[temp_idx].replace('.', suffix).format(classname.replace(',', '').replace('+', ' '))
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class AverageMeter(object):
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"""Computes and stores the average and current value."""
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def __init__(self):
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self.reset()
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def reset(self):
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self.val = 0
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self.avg = 0
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self.sum = 0
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self.count = 0
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def update(self, val, n=1, decay=0):
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self.val = val
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if decay:
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alpha = math.exp(-n / decay) # exponential decay over 100 updates
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self.sum = alpha * self.sum + (1 - alpha) * val * n
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self.count = alpha * self.count + (1 - alpha) * n
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else:
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self.sum += val * n
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self.count += n
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self.avg = self.sum / self.count
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