Concept-Centric Token Interpretation for Vector-Quantized Generative Models
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Abstract (arXiv)
Vector-Quantized Generative Models (VQGMs) have emerged as powerful tools for image generation. However, the key component of VQGMs -- the codebook of discrete tokens -- is still not well understood, e.g., which tokens are critical to generate an image of a certain concept? This paper introduces Concept-Oriented Token Explanation (CORTEX), a novel approach for interpreting VQGMs by identifying concept-specific token combinations. Our framework employs two methods: (1) a sample-level explanation method that analyzes token importance scores in individual images, and (2) a codebook-level explanation method that explores the entire codebook to find globally relevant tokens. Experimental results demonstrate CORTEX's efficacy in providing clear explanations of token usage in the generative process, outperforming baselines across multiple pretrained VQGMs. Besides enhancing VQGMs transparency, CORTEX is useful in applications such as targeted image editing and shortcut feature detection. Our code is available at https://github.com/YangTianze009/CORTEX.
Key facts. Cited by 4 papers in the map (data through 14 Oct 2026). Builds on 35 of its 44 references that are in the map. First posted on arXiv 31 May 2025.
Builds on
35 of 44 references.
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Citing papers per year: 2025: 2; 2026: 2.
4 papers.
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- 2026Online Skill Learning for Web Agents via State-Grounded Dynamic Retrieval3 Jun 2026
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- 2025RSTR: Reducing SpatioTemporal Redundancy in Diffusion Transformers16 Dec 2025
- 2025RAU: Reference-based Anatomical Understanding with Vision Language Models26 Sep 2025
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