activity
20222026
most citedOpenAUC: Towards AUC-Oriented Open-Set Recognition

9 citations · 27 across the 20 of their papers we have counts for

collaborators

22 papers

cs.AI2026

Compare to Correct: Pairwise-Guided Logit Adjustment for LLM Test-Time Scaling

Cong Hua, Qianqian Xu, Zitai Wang +4

Sampling-based test-time scaling enhances LLM reasoning by aggregating multiple reasoning paths for the same query. Existing methods use answer frequencies or path confidence to co…

cs.CR2026

GoodDiffusion: Proactive Copyright Protection for Diffusion Bridge Models via Learnable Sample-specific Signatures

Shixi Qin, Zhiyong Yang, Shilong Bao +3

This paper tackles the challenging problem of developing a proactive copyright protection mechanism that cuts off unauthorized use of diffusion bridge models. Existing studies larg…

cs.CL2026

Experience-Driven Dynamic Exits for LLMs with Reinforcement Learning

Yanyu Zhu, Hoilam Pao, Niu Hu +6

Large Language Models suffer from slow autoregressive inference. While self-speculative decoding accelerates this process, its efficiency is hampered by static configurations like…

cs.LG2026

The Bridge-Garden Dilemma in LLM Distillation: Why Mixing Hard and Soft Labels Works

Guanghui Wang, Kaiwen Lv Kacuila, Zhiyong Yang +5

Knowledge distillation (KD) transfers knowledge from a large teacher model to a smaller student. In language modeling, the student is trained either on tokens sampled from the teac…

cs.CV2026

Mind the Way You Select Negative Texts: Pursuing the Distance Consistency in OOD Detection with VLMs

Zhikang Xu, Qianqian Xu, Zitai Wang +4

Out-of-distribution (OOD) detection seeks to identify samples from unknown classes, a critical capability for deploying machine learning models in open-world scenarios. Recent rese…

cs.CV2026

Making Training-Free Diffusion Segmentors Scale with the Generative Power

Benyuan Meng, Qianqian Xu, Zitai Wang +3

As powerful generative models, text-to-image diffusion models have recently been explored for discriminative tasks. A line of research focuses on adapting a pre-trained diffusion m…

cs.SI2025

Quantifying the Potential to Escape Filter Bubbles: A Behavior-Aware Measure via Contrastive Simulation

Difu Feng, Qianqian Xu, Zitai Wang +3

Nowadays, recommendation systems have become crucial to online platforms, shaping user exposure by accurate preference modeling. However, such an exposure strategy can also reinfor…

cs.LG2025

ABKD: Pursuing a Proper Allocation of the Probability Mass in Knowledge Distillation via --Divergence

Guanghui Wang, Zhiyong Yang, Zitai Wang +3

Knowledge Distillation (KD) transfers knowledge from a large teacher model to a smaller student model by minimizing the divergence between their output distributions, typically usi…

cs.LG2025

Focal-SAM: Focal Sharpness-Aware Minimization for Long-Tailed Classification

Sicong Li, Qianqian Xu, Zhiyong Yang +4

Real-world datasets often follow a long-tailed distribution, making generalization to tail classes difficult. Recent methods resorted to long-tail variants of Sharpness-Aware Minim…

cs.LG2025

OpenworldAUC: Towards Unified Evaluation and Optimization for Open-world Prompt Tuning

Cong Hua, Qianqian Xu, Zhiyong Yang +3

Prompt tuning adapts Vision-Language Models like CLIP to open-world tasks with minimal training costs. In this direction, one typical paradigm evaluates model performance separatel…

cs.CL2025

GMSA: Enhancing Context Compression via Group Merging and Layer Semantic Alignment

Jiwei Tang, Zhicheng Zhang, Shunlong Wu +8

Large Language Models (LLMs) have achieved remarkable performance across a wide range of Natural Language Processing (NLP) tasks. However, in long-context scenarios, they face two…

cs.CV2024

EDGE: Unknown-aware Multi-label Learning by Energy Distribution Gap Expansion

Yuchen Sun, Qianqian Xu, Zitai Wang +2

Multi-label Out-Of-Distribution (OOD) detection aims to discriminate the OOD samples from the multi-label In-Distribution (ID) ones. Compared with its multiclass counterpart, it is…

cs.CV2024

Suppress Content Shift: Better Diffusion Features via Off-the-Shelf Generation Techniques

Benyuan Meng, Qianqian Xu, Zitai Wang +3

Diffusion models are powerful generative models, and this capability can also be applied to discrimination. The inner activations of a pre-trained diffusion model can serve as feat…

cs.CV2024

Not All Diffusion Model Activations Have Been Evaluated as Discriminative Features

Benyuan Meng, Qianqian Xu, Zitai Wang +2

Diffusion models are initially designed for image generation. Recent research shows that the internal signals within their backbones, named activations, can also serve as dense fea…

cs.LG2024★ 4 cited

HGOE: Hybrid External and Internal Graph Outlier Exposure for Graph Out-of-Distribution Detection

Junwei He, Qianqian Xu, Yangbangyan Jiang +3

With the progressive advancements in deep graph learning, out-of-distribution (OOD) detection for graph data has emerged as a critical challenge. While the efficacy of auxiliary da…

cs.LG2024★ 4 cited

Top-K Pairwise Ranking: Bridging the Gap Among Ranking-Based Measures for Multi-Label Classification

Zitai Wang, Qianqian Xu, Zhiyong Yang +4

Multi-label ranking, which returns multiple top-ranked labels for each instance, has a wide range of applications for visual tasks. Due to its complicated setting, prior arts have…

cs.LG2024

DirMixE: Harnessing Test Agnostic Long-tail Recognition with Hierarchical Label Variations

Zhiyong Yang, Qianqian Xu, Sicong Li +3

This paper explores test-agnostic long-tail recognition, a challenging long-tail task where the test label distributions are unknown and arbitrarily imbalanced. We argue that the v…

cs.LG2023

ADA-GAD: Anomaly-Denoised Autoencoders for Graph Anomaly Detection

Junwei He, Qianqian Xu, Yangbangyan Jiang +2

Graph anomaly detection is crucial for identifying nodes that deviate from regular behavior within graphs, benefiting various domains such as fraud detection and social network. Al…

cs.LG2023★ 3 cited

A Unified Perspective for Loss-Oriented Imbalanced Learning via Localization

Zitai Wang, Qianqian Xu, Zhiyong Yang +4

Due to the inherent imbalance in real-world datasets, naïve Empirical Risk Minimization (ERM) tends to bias the learning process towards the majority classes, hindering generalizat…

cs.CV2023

When Measures are Unreliable: Imperceptible Adversarial Perturbations toward Top- Multi-Label Learning

Yuchen Sun, Qianqian Xu, Zitai Wang +1

With the great success of deep neural networks, adversarial learning has received widespread attention in various studies, ranging from multi-class learning to multi-label learning…

cs.LG2022★ 9 cited

OpenAUC: Towards AUC-Oriented Open-Set Recognition

Zitai Wang, Qianqian Xu, Zhiyong Yang +3

Traditional machine learning follows a close-set assumption that the training and test set share the same label space. While in many practical scenarios, it is inevitable that some…

cs.LG2022★ 7 cited

Optimizing Partial Area Under the Top-k Curve: Theory and Practice

Zitai Wang, Qianqian Xu, Zhiyong Yang +3

Top-k error has become a popular metric for large-scale classification benchmarks due to the inevitable semantic ambiguity among classes. Existing literature on top-k optimization…