Leveraging Large Language Models to Enhance Low-Shot Image Classification

Centrala begrepp

Large Language Models (LLMs) can provide valuable visual descriptions and knowledge to enhance the performance of pre-trained vision-language models like CLIP in low-shot image classification tasks.

Sammanfattning

The paper discusses the integration of Large Language Models (LLMs) to improve the performance of pre-trained vision-language models, specifically on low-shot image classification tasks.
Key highlights:

Low-shot image classification tasks, including few-shot and zero-shot variants, rely heavily on category names as the source of class-specific knowledge, resulting in a shortage of distinguishable descriptions.
LLMs, trained on large text corpora, can provide rich visual descriptions for fine-grained object categories that can be leveraged to enhance text prompts.
The authors propose the LLaMP framework, which treats LLMs as prompt learners for the CLIP text encoder, to effectively adapt LLMs for image classification without fully fine-tuning the language model.
Experiments show that LLaMP outperforms state-of-the-art prompt learning methods on both zero-shot generalization and few-shot image classification across a spectrum of 11 datasets.
The authors also conduct extensive analysis to investigate the effectiveness of each component of LLaMP and discuss the optimal setup for LLM-aided image classification.

Statistik

"The Yak-40 has a unique trijet configuration with a large passenger window section and a sloping nose, along with three engines mounted on the rear of the aircraft, creating an unmistakable silhouette in the sky."
"By simply incorporating noun phrases extracted from a LLM's response, the performance of the ordinary CLIP models is improved by more than 1% without any training."

Citat

"To the best of our knowledge, we are the first to investigate how to use the encyclopedic knowledge inherent in Large Language Models (LLMs) to enhance low-shot image classification."
"We design a framework, LLaMP, to effectively adapt LLMs for image classification, without training the entire language model, and achieve state-of-the-art in both few-shot and zero-shot settings."

Viktiga insikter från

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

by Zhaoheng Zhe... på arxiv.org 04-04-2024

https://arxiv.org/pdf/2312.04076.pdf

Djupare frågor

How can the integration of language priors at earlier vision encoding stages further improve the performance of LLaMP?

Integrating language priors at earlier vision encoding stages in the LLaMP framework can enhance performance by providing additional context and semantic information to the visual processing. By introducing language priors at an earlier stage, the model can benefit from a more comprehensive understanding of the textual descriptions associated with the images. This can help in capturing nuanced details, fine-grained features, and specific attributes of objects that may not be easily discernible from visual cues alone.
The integration of language priors at earlier vision encoding stages can facilitate a more holistic and multi-modal understanding of the input data. By incorporating textual information early in the processing pipeline, the model can leverage the complementary nature of language and vision modalities to improve feature representation and classification accuracy. This approach can lead to more robust and accurate predictions by enabling the model to capture a richer semantic understanding of the images.

What are the potential limitations or drawbacks of relying solely on LLMs' knowledge for low-shot image classification, and how can they be addressed?

Relying solely on Large Language Models (LLMs) for low-shot image classification may have some limitations and drawbacks. One potential limitation is the domain gap between language and vision, as LLMs are primarily trained on text data and may not have specialized knowledge of visual features. This can result in a lack of fine-grained visual understanding and may lead to suboptimal performance in image-related tasks. Additionally, the sheer size and complexity of LLMs can make them computationally expensive and challenging to integrate seamlessly into vision tasks.
To address these limitations, one approach is to incorporate multi-modal pre-training techniques that jointly train LLMs with vision models on diverse datasets. This can help bridge the domain gap between language and vision and improve the model's ability to understand and process visual information. Additionally, fine-tuning LLMs on specific visual tasks or incorporating visual priors during training can enhance their performance in low-shot image classification scenarios. Leveraging techniques like knowledge distillation or model distillation can also help in transferring the knowledge from LLMs to more specialized vision models for improved performance.

How can the insights from this work on leveraging LLMs' knowledge be extended to other computer vision tasks beyond image classification, such as object detection or segmentation?

The insights from leveraging LLMs' knowledge in low-shot image classification can be extended to other computer vision tasks like object detection or segmentation by incorporating multi-modal learning approaches and leveraging the strengths of both language and vision models. Here are some ways to extend these insights:

Multi-modal Pre-training: Pre-train models on diverse datasets that include both textual and visual information to improve their understanding of multi-modal data.

Fine-tuning and Adaptation: Fine-tune LLMs on specific object detection or segmentation tasks to transfer their knowledge to these tasks effectively.

Prompt Learning: Utilize prompt learning techniques to adapt LLMs for object detection or segmentation tasks, generating informative prompts that capture both visual and textual cues.

Knowledge Distillation: Transfer the knowledge learned by LLMs to specialized vision models for object detection or segmentation through knowledge distillation techniques.

By integrating these strategies and adapting the insights gained from leveraging LLMs' knowledge in low-shot image classification, it is possible to enhance the performance of object detection and segmentation models by leveraging the complementary nature of language and vision modalities.