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Feifei Li

8 accepted papers

2026

SafeRoPE: Risk-specific Head-wise Embedding Rotation for Safe Generation in Rectified Flow Transformers

CVPR 2026

Recent Text-to-Image (T2I) models based on rectified-flow transformers (e.g., SD3, FLUX) achieve high generative fidelity but remain vulnerable to unsafe semantics, especially when triggered by multi-token interactions. Existing mitigation methods largely rely on fine-tuning or attention modulation

Cited by 0SourcecodeScholar
2026

SmartSight: Mitigating Hallucination in Video-LLMs Without Compromising Video Understanding via Temporal Attention Collapse

AAAI 2026technical

Despite Video Large Language Models (Video-LLMs) having rapidly advanced in recent years, perceptual hallucinations pose a substantial safety risk, which severely restricts their real-world applicability. While several methods for hallucination mitigation have been proposed, they often compromise th

Cited by 0SourcePDFScholar
2026

Unified Safe In-context Image Generation in Multimodal Diffusion Transformers

ICML 2026poster

Diffusion transformers (DiTs) equipped with multimodal attention (MM-Attn) have become a dominant paradigm for image generation. However, preventing the generation of harmful content remains a critical challenge, particularly in imageto-image (I2I) editing tasks. Existing safety mechanisms are prima…

Cited by 0SourceScholar
2025

Detect-and-Guide: Self-regulation of Diffusion Models for Safe Text-to-Image Generation via Guideline Token Optimization

CVPR 2025poster

Text-to-image diffusion models have achieved state-of-the-art results in synthesis tasks; however, there is a growing concern about their potential misuse in creating harmful content. To mitigate these risks, post-hoc model intervention techniques, such as concept unlearning and safety guidance, hav…

Cited by 2SourcePDFScholar
2025

InfoCons: Identifying Interpretable Critical Concepts in Point Clouds via Information Theory

ICML 2025poster

Interpretability of point cloud (PC) models becomes imperative given their deployment in safety-critical scenarios such as autonomous vehicles. We focus on attributing PC model outputs to interpretable critical concepts, defined as meaningful subsets of the input point cloud. To enable human-unders…

2024

Incremental 3D Reconstruction through a Hybrid Explicit-and-Implicit Representation

ICRA 2024poster

3D reconstruction is an important task in computer vision and is widely used in robotics and autonomous driving. When building large-scale scenes, limitations in computing resources and the difficulty of accessing the entire dataset in a single task are inevitable. Therefore, an incremental reconstr…

Cited by 0SourceScholar
2024

PinNet: Pinpoint Instructive Information for Retrieval Augmented Code-to-Text Generation

ICML 2024poster

Automatically generating high-quality code descriptions greatly improves the readability and maintainability of the codebase. Recently, retrieval augmented code-to-text generation has proven to be an effective solution, which has achieved state-of-the-art results on various benchmarks. It brings out…

Cited by 1SourcePDFScholar