Beyond Class Tokens: LLM-guided Dominant Property Mining for Few-shot Classification

• URL: http://arxiv.org/abs/2507.20511v2
• Date: Tue, 29 Jul 2025 07:25:15 GMT
• Title: Beyond Class Tokens: LLM-guided Dominant Property Mining for Few-shot Classification
• Authors: Wei Zhuo, Runjie Luo, Wufeng Xue, Linlin Shen,
• Abstract summary: Few-Shot Learning attempts to develop the generalization ability for recognizing novel classes using only a few images.<n>Recent CLIP-like methods based on contrastive language-image mitigate the issue by leveraging textual representation of the class name for unseen image discovery.<n>We propose a novel Few-Shot Learning method (BCT-CLIP) that explores textbfdominating properties via contrastive learning beyond simply using class tokens.
• Score: 31.300989699856583
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Few-shot Learning (FSL), which endeavors to develop the generalization ability for recognizing novel classes using only a few images, faces significant challenges due to data scarcity. Recent CLIP-like methods based on contrastive language-image pertaining mitigate the issue by leveraging textual representation of the class name for unseen image discovery. Despite the achieved success, simply aligning visual representations to class name embeddings would compromise the visual diversity for novel class discrimination. To this end, we proposed a novel Few-Shot Learning (FSL) method (BCT-CLIP) that explores \textbf{dominating properties} via contrastive learning beyond simply using class tokens. Through leveraging LLM-based prior knowledge, our method pushes forward FSL with comprehensive structural image representations, including both global category representation and the patch-aware property embeddings. In particular, we presented a novel multi-property generator (MPG) with patch-aware cross-attentions to generate multiple visual property tokens, a Large-Language Model (LLM)-assistant retrieval procedure with clustering-based pruning to obtain dominating property descriptions, and a new contrastive learning strategy for property-token learning. The superior performances on the 11 widely used datasets demonstrate that our investigation of dominating properties advances discriminative class-specific representation learning and few-shot classification.

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