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Chaofan Gan

4 accepted papers

2026

Massive Activations are the Key to Local Detail Synthesis in Diffusion Transformers

ICLR 2026poster

Massive Activations (MAs) are a well-documented phenomenon across Transformer architectures, and prior studies in both LLMs and ViTs have shown that they play a substantial role in shaping model behavior. However, the nature and function of MAs within Diffusion Transformers (DiTs) remain largely une…

Cited by 0SourceScholar
2026

VidLaDA: Bidirectional Diffusion Large Language Models for Efficient Video Understanding

ICML 2026poster

Current Video Large Language Models (Video LLMs) typically encode frames via a vision encoder and employ an autoregressive (AR) LLM for understanding and generation. However, this AR paradigm inevitably faces a dual efficiency bottleneck: strictly unidirectional attention compromises *understanding …

Cited by 3SourceScholar
2025

Unleashing Diffusion Transformers for Visual Correspondence by Modulating Massive Activations

NeurIPS 2025poster

Pre-trained stable diffusion models (SD) have shown great advances in visual correspondence. In this paper, we investigate the capabilities of Diffusion Transformers (DiTs) for accurate dense correspondence. Distinct from SD, DiTs exhibit a critical phenomenon in which very few feature activations…

Cited by 0SourceScholar
2024

MECD: Unlocking Multi-Event Causal Discovery in Video Reasoning

NeurIPS 2024spotlight

Video causal reasoning aims to achieve a high-level understanding of video content from a causal perspective. However, current video reasoning tasks are limited in scope, primarily executed in a question-answering paradigm and focusing on short videos containing only a single event and simple causal…