activity
20212026
most citedA Geometric Analysis of Neural Collapse with Unconstrained Features

43 citations · 58 across the 15 of their papers we have counts for

collaborators

16 papers

cs.CV2026

ARTEMIS: Agent-guided Reliability-aware Temporal Mask Evolution for Imperfectly Supervised Video Polyp Segmentation

Tong Wang, Siwen Wang, Yaolei Qi +4

Imperfectly supervised video polyp segmentation (VPS) aims to learn dense, temporally consistent masks from inexpensive supervision, including weak annotations (points, scribbles)…

cs.LG2026

Evaluating the Representation Space of Diffusion Models via Self-Supervised Principles

Xiao Li, Yixuan Jia, Zekai Zhang +6

Diffusion models have demonstrated remarkable generative capabilities and have also emerged as powerful self-supervised representation learners, yet the connection between these tw…

cs.CV2025

Improving Visual Discriminability of CLIP for Training-Free Open-Vocabulary Semantic Segmentation

Jinxin Zhou, Jiachen Jiang, Zhihui Zhu

Extending CLIP models to semantic segmentation remains challenging due to the misalignment between their image-level pre-training objectives and the pixel-level visual understandin…

cs.CV2025

Composed Object Retrieval: Object-level Retrieval via Composed Expressions

Tong Wang, Guanyu Yang, Nian Liu +4

Retrieving fine-grained visual content based on user intent remains a challenge in multimodal systems. Although current Composed Image Retrieval (CIR) methods combine reference ima…

cs.LG2025

On the Convergence of Gradient Descent on Learning Transformers with Residual Connections

Zhen Qin, Jinxin Zhou, Jiachen Jiang +1

Transformer models have emerged as fundamental tools across various scientific and engineering disciplines, owing to their outstanding performance in diverse applications. Despite…

cs.CV2025★ 1 cited

Analyzing Fine-Grained Alignment and Enhancing Vision Understanding in Multimodal Language Models

Jiachen Jiang, Jinxin Zhou, Bo Peng +2

Achieving better alignment between vision embeddings and Large Language Models (LLMs) is crucial for enhancing the abilities of Multimodal LLMs (MLLMs), particularly for recent mod…

cs.CL2025

From Compression to Expression: A Layerwise Analysis of In-Context Learning

Jiachen Jiang, Yuxin Dong, Jinxin Zhou +1

In-context learning (ICL) enables large language models (LLMs) to adapt to new tasks without weight updates by learning from demonstration sequences. While ICL shows strong empiric…

eess.IV2025

Learning Where and What to Restore for Composite Image Restoration

Jiachen Jiang, Tianyu Ding, Ke Zhang +5

Real-world degraded images often contain multiple co-occurring degradation types, making composite image restoration fundamentally different from the single-degradation setting ass…

cs.HC2024

Analysis of the Causes of Car Accidents in the United States of America in 2023: Gauge People Understanding of Data Visualisation

Hamoud Alhazmi, Marcelo Morales, Jiachen Jiang +2

This paper presents a comprehensive examination of interactive data visualization tools and their efficacy in the context of United States car accident data for the year 2023. We d…

cs.AI2024

Tracing Representation Progression: Analyzing and Enhancing Layer-Wise Similarity

Jiachen Jiang, Jinxin Zhou, Zhihui Zhu

Analyzing the similarity of internal representations has been an important technique for understanding the behavior of deep neural networks. Most existing methods for analyzing the…

cs.CV2024

AdaContour: Adaptive Contour Descriptor with Hierarchical Representation

Tianyu Ding, Jinxin Zhou, Tianyi Chen +3

Existing angle-based contour descriptors suffer from lossy representation for non-starconvex shapes. By and large, this is the result of the shape being registered with a single gl…

cs.CL2023★ 11 cited

The Efficiency Spectrum of Large Language Models: An Algorithmic Survey

Tianyu Ding, Tianyi Chen, Haidong Zhu +7

The rapid growth of Large Language Models (LLMs) has been a driving force in transforming various domains, reshaping the artificial general intelligence landscape. However, the inc…

cs.CV2023

DREAM: Diffusion Rectification and Estimation-Adaptive Models

Jinxin Zhou, Tianyu Ding, Tianyi Chen +4

We present DREAM, a novel training framework representing Diffusion Rectification and Estimation Adaptive Models, requiring minimal code changes (just three lines) yet significantl…

cs.LG2023

Generalized Neural Collapse for a Large Number of Classes

Jiachen Jiang, Jinxin Zhou, Peng Wang +4

Neural collapse provides an elegant mathematical characterization of learned last layer representations (a.k.a. features) and classifier weights in deep classification models. Such…

cs.LG2022★ 3 cited

Understanding and Improving Transfer Learning of Deep Models via Neural Collapse

Xiao Li, Sheng Liu, Jinxin Zhou +4

With the ever-increasing complexity of large-scale pre-trained models coupled with a shortage of labeled data for downstream training, transfer learning has become the primary appr…

cs.LG2021★ 43 cited

A Geometric Analysis of Neural Collapse with Unconstrained Features

Zhihui Zhu, Tianyu Ding, Jinxin Zhou +4

We provide the first global optimization landscape analysis of -- an intriguing empirical phenomenon that arises in the last-layer classifiers and features of ne…