activity
20242026
collaborators

6 papers

cs.CL2026

MoME: Mixture-of-Memory Embeddings for Context-Aware Sparse Lookup

Muchen Li, Leonid Sigal, Renjie Liao

Scaling large language models efficiently has motivated sparse capacity mechanisms such as Mixture-of-Experts and, more recently, conditional memory: token-indexed embedding tables…

cs.CV2026

CoRDS: Coreset-based Representative and Diverse Selection for Streaming Video Understanding

Ailar Mahdizadeh, Puria Azadi, Muchen Li +2

Streaming video understanding with large vision-language models (VLMs) requires a compact memory that can support future reasoning over an ever-growing visual history. A common sol…

cs.CV2026

SynMulti: Synthetic-to-Real Learning for Multimodal Video Understanding

Tanzila Rahman, Renjie Liao, Leonid Sigal

Training multimodal large language models (MLLMs) for video understanding requires large-scale annotated data spanning diverse tasks such as object counting, question answering, an…

cs.CV2025

Free Lunch Alignment of Text-to-Image Diffusion Models without Preference Image Pairs

Jia Jun Cheng Xian, Muchen Li, Haotian Yang +4

Recent advances in diffusion-based text-to-image (T2I) models have led to remarkable success in generating high-quality images from textual prompts. However, ensuring accurate alig…

cs.CL2025

Leveraging Online Olympiad-Level Math Problems for LLMs Training and Contamination-Resistant Evaluation

Sadegh Mahdavi, Muchen Li, Kaiwen Liu +3

Advances in Large Language Models (LLMs) have sparked interest in their ability to solve Olympiad-level math problems. However, the training and evaluation of these models are cons…

cs.CV2024

Joint Generative Modeling of Grounded Scene Graphs and Images via Diffusion Models

Bicheng Xu, Qi Yan, Renjie Liao +2

We introduce a framework for joint grounded scene graph - image generation, a challenging task involving high-dimensional, multi-modal structured data. To effectively model this co…