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Prompt Distribution Learning

CVPR 2022 · Vision-language and multimodal › CLIP and zero-shot · approach: Prompt learning for CLIP · 245 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
learn a distribution over diverse prompts rather than one soft promptCLIP prompt adaptation · 12 downstream datasets, 1-shot averagescore: +8.5% relative average performance improvementHelped
learn task-adapted prompts rather than use hand-crafted promptsCLIP · 12 downstream datasets, 1-shot averagescore: +9.1% relative average resultHelped
add the upper-bound loss to learn the classifier-weight distribution (ablation)ProDA · 12 downstream datasets, average, 1-shotscore: 65.8 -> 67.0Helped
vary category-name position across prompts (ablation)ProDA · 12 downstream datasets, average, 1-shotscore: 66.6 -> 67.0Helped
add semantic orthogonality loss (ablation)ProDA · 12 downstream datasets, average, 1-shotscore: 66.8 -> 67.0Helped
sample a prompt mini-batch rather than use all prompts per iteration (ablation)ProDA · CIFAR-10accuracy: 74.6 vs 74.4; 76.4 vs 76.3; 78.3 vs 78.3; 79.6 vs 79.7; 80.9 vs 81.0No clear effect
increase the number of learnable prompts (ablation)ProDA · CIFAR-100recognition scoreHelped

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