activity
20202026
most citedLong-tailed Recognition by Routing Diverse Distribution-Aware Experts

30 citations · 71 across the 8 of their papers we have counts for

collaborators

8 papers

cs.CV2026

VisGym: Diverse, Customizable, Scalable Environments for Multimodal Agents

Zirui Wang, Junyi Zhang, Jiaxin Ge +9

Modern Vision-Language Models (VLMs) remain poorly characterized in multi-step visual interactions, particularly in how they integrate perception, memory, and action over long hori…

cs.CV2023★ 24 cited

LLM-grounded Diffusion: Enhancing Prompt Understanding of Text-to-Image Diffusion Models with Large Language Models

Long Lian, Boyi Li, Adam Yala +1

Recent advancements in text-to-image diffusion models have yielded impressive results in generating realistic and diverse images. However, these models still struggle with complex…

cs.CV2023

Bootstrapping Objectness from Videos by Relaxed Common Fate and Visual Grouping

Long Lian, Zhirong Wu, Stella X. Yu

We study learning object segmentation from unlabeled videos. Humans can easily segment moving objects without knowing what they are. The Gestalt law of common fate, i.e., what move…

cs.CV2022

Improving Unsupervised Video Object Segmentation with Motion-Appearance Synergy

Long Lian, Zhirong Wu, Stella X. Yu

We present IMAS, a method that segments the primary objects in videos without manual annotation in training or inference. Previous methods in unsupervised video object segmentation…

cs.LG2022★ 13 cited

Debiased Learning from Naturally Imbalanced Pseudo-Labels

Xudong Wang, Zhirong Wu, Long Lian +1

Pseudo-labels are confident predictions made on unlabeled target data by a classifier trained on labeled source data. They are widely used for adapting a model to unlabeled data, e…

cs.LG2021

Unsupervised Selective Labeling for More Effective Semi-Supervised Learning

Xudong Wang, Long Lian, Stella X. Yu

Given an unlabeled dataset and an annotation budget, we study how to selectively label a fixed number of instances so that semi-supervised learning (SSL) on such a partially labele…

cs.RO2021★ 4 cited

Unsupervised Visual Attention and Invariance for Reinforcement Learning

Xudong Wang, Long Lian, Stella X. Yu

Vision-based reinforcement learning (RL) is successful, but how to generalize it to unknown test environments remains challenging. Existing methods focus on training an RL policy t…

cs.CV2020★ 30 cited

Long-tailed Recognition by Routing Diverse Distribution-Aware Experts

Xudong Wang, Long Lian, Zhongqi Miao +2

Natural data are often long-tail distributed over semantic classes. Existing recognition methods tackle this imbalanced classification by placing more emphasis on the tail data, th…