3 papers
cs.CV2026
Spectral Principal Paths: A Spectral Perspective on Linear Representation Formation in LLMs
Bowei Tian, Xuntao Lyu, Meng Liu +2
High-level representations have become a central focus in enhancing AI transparency and control, shifting attention from individual neurons or circuits to structured semantic direc…
cs.CV2025
CertMask: Certifiable Defense Against Adversarial Patches via Theoretically Optimal Mask Coverage
Xuntao Lyu, Ching-Chi Lin, Abdullah Al Arafat +3
Adversarial patch attacks inject localized perturbations into images to mislead deep vision models. These attacks can be physically deployed, posing serious risks to real-world app…
cs.LG2025
Why Representation Engineering Works: A Theoretical and Empirical Study in Vision-Language Models
Bowei Tian, Xuntao Lyu, Meng Liu +2
Representation Engineering (RepE) has emerged as a powerful paradigm for enhancing AI transparency by focusing on high-level representations rather than individual neurons or circu…