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Enxin Song

5 accepted papers

2026

VideoNSA: Native Sparse Attention Scales Video Understanding

ICLR 2026poster

Video understanding in multimodal language models remains limited by context length: models often miss key transition frames and struggle to maintain coherence across long time scales. To address this, we adapt Native Sparse Attention (NSA) to video-language models. **Our method, VideoNSA, adapts Q…

Cited by 0SourcecodeScholar
2025

AuroraCap: Efficient, Performant Video Detailed Captioning and a New Benchmark

ICLR 2025poster

Video detailed captioning is a key task which aims to generate comprehensive and coherent textual descriptions of video content, benefiting both video understanding and generation. In this paper, we propose AuroraCap, a video captioner based on a large multimodal model. We follow the simplest archit…

Cited by 6SourcePDFScholar
2025

Bringing RNNs Back to Efficient Open-Ended Video Understanding

ICCV 2025poster

The challenge of long video understanding lies in its high computational complexity and prohibitive memory cost, since the memory and computation required by transformer-based LLMs scale quadratically with input sequence length. We propose AuroraLong to address this challenge by replacing the LLM co…

Cited by 0SourcePDFScholar
2025

Meissonic: Revitalizing Masked Generative Transformers for Efficient High-Resolution Text-to-Image Synthesis

ICLR 2025poster

We present Meissonic, which elevates non-autoregressive text-to-image Masked Image Modeling (MIM) to a level comparable with state-of-the-art diffusion models like SDXL. By incorporating a comprehensive suite of architectural innovations, advanced positional encoding strategies, and optimized sampli…

2024

MovieChat: From Dense Token to Sparse Memory for Long Video Understanding

CVPR 2024poster

Recently integrating video foundation models and large language models to build a video understanding system can overcome the limitations of specific pre-defined vision tasks. Yet existing systems can only handle videos with very few frames. For long videos the computation complexity memory cost and…