Large Language Models are Good Prompt Learners for Low-Shot Image Classification

Fuente: arXiv
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Autores principales: Zheng, Zhaoheng, Wei, Jingmin, Hu, Xuefeng, Zhu, Haidong, Nevatia, Ram
Formato: Preprint
Publicado: 2023
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author Zheng, Zhaoheng
Wei, Jingmin
Hu, Xuefeng
Zhu, Haidong
Nevatia, Ram
author_facet Zheng, Zhaoheng
Wei, Jingmin
Hu, Xuefeng
Zhu, Haidong
Nevatia, Ram
contents Low-shot image classification, where training images are limited or inaccessible, has benefited from recent progress on pre-trained vision-language (VL) models with strong generalizability, e.g. CLIP. Prompt learning methods built with VL models generate text features from the class names that only have confined class-specific information. Large Language Models (LLMs), with their vast encyclopedic knowledge, emerge as the complement. Thus, in this paper, we discuss the integration of LLMs to enhance pre-trained VL models, specifically on low-shot classification. However, the domain gap between language and vision blocks the direct application of LLMs. Thus, we propose LLaMP, Large Language Models as Prompt learners, that produces adaptive prompts for the CLIP text encoder, establishing it as the connecting bridge. Experiments show that, compared with other state-of-the-art prompt learning methods, LLaMP yields better performance on both zero-shot generalization and few-shot image classification, over a spectrum of 11 datasets. Code will be made available at: https://github.com/zhaohengz/LLaMP.
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publishDate 2023
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spellingShingle Large Language Models are Good Prompt Learners for Low-Shot Image Classification
Zheng, Zhaoheng
Wei, Jingmin
Hu, Xuefeng
Zhu, Haidong
Nevatia, Ram
Computer Vision and Pattern Recognition
Low-shot image classification, where training images are limited or inaccessible, has benefited from recent progress on pre-trained vision-language (VL) models with strong generalizability, e.g. CLIP. Prompt learning methods built with VL models generate text features from the class names that only have confined class-specific information. Large Language Models (LLMs), with their vast encyclopedic knowledge, emerge as the complement. Thus, in this paper, we discuss the integration of LLMs to enhance pre-trained VL models, specifically on low-shot classification. However, the domain gap between language and vision blocks the direct application of LLMs. Thus, we propose LLaMP, Large Language Models as Prompt learners, that produces adaptive prompts for the CLIP text encoder, establishing it as the connecting bridge. Experiments show that, compared with other state-of-the-art prompt learning methods, LLaMP yields better performance on both zero-shot generalization and few-shot image classification, over a spectrum of 11 datasets. Code will be made available at: https://github.com/zhaohengz/LLaMP.
title Large Language Models are Good Prompt Learners for Low-Shot Image Classification
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2312.04076