collaborators

11 papers

cs.AI2026

Suppressing Pressure, Amplifying Evidence: Self-Guided Attention Steering to Mitigate Sycophancy and Stubbornness

Yinghao He, Mengyu Xu, Haixiang Sun +8

Reliable language models should resist unsupported user pressure while effectively using objective contextual information. However, models may exhibit sycophancy by yielding to uns…

cs.AI2026

Positive-Unlabeled Learning for Agent Safety False Alarm Auditing

Xichen Yan, Chongyang Gao, Kezhen Chen +3

Safety monitors help safeguard language-model agents interacting with external tools and environments, but conservative monitoring can generate many false alarms, consuming extensi…

cs.LG2026

On Unlearning for Time-series Forecasting

Zeyu Shi, Yanhui Luo, Ziming Hong +4

Time-series forecasting is widely used in sensitive domains. Models in these settings are often trained on longitudinal user- or entity-level records, which may later require remov…

cs.CL2026

NüshuVoice: Reviving the Voice of Endangered Nüshu with Pitch-Aware Text-to-Speech

Hongkun Yang, Xinhui Yi, Xiyan Zhao +13

Nüshu is an endangered phonetic script historically used by women in Jiangyong County, southern Hunan, China. While existing computational studies of Nüshu mainly focus on textual…

cs.CR2026

Defense against Poisoning Attacks under Shuffle-DP

Siyi Wang, Qiyao Luo, Yihua Hu +6

Differential Privacy (DP) has become the gold standard for protecting individual privacy in data analytics, and the shuffle-DP model has attracted significant attention from both a…

cs.CR2026

DP-MGTD: Privacy-Preserving Machine-Generated Text Detection via Adaptive Differentially Private Entity Sanitization

Lionel Z. Wang, Yusheng Zhao, Jiabin Luo +6

The deployment of Machine-Generated Text (MGT) detection systems necessitates processing sensitive user data, creating a fundamental conflict between authorship verification and pr…

cs.CY2026

AppellateGen: A Benchmark for Appellate Legal Judgment Generation

Hongkun Yang, Lionel Z. Wang, Wei Fan +10

Legal judgment generation is a critical task in legal intelligence. However, existing research in legal judgment generation has predominantly focused on first-instance trials, rely…

cs.CR2025

The Man Behind the Sound: Demystifying Audio Private Attribute Profiling via Multimodal Large Language Model Agents

Lixu Wang, Kaixiang Yao, Xinfeng Li +4

Our research uncovers a novel privacy risk associated with multimodal large language models (MLLMs): the ability to infer sensitive personal attributes from audio data -- a techniq…

cs.LG2025

Token Buncher: Shielding LLMs from Harmful Reinforcement Learning Fine-Tuning

Weitao Feng, Lixu Wang, Peizhuo Lv +5

As large language models (LLMs) continue to grow in capability, so do the risks of harmful misuse through fine-tuning. While most prior studies assume that attackers rely on superv…

cs.CV2025

The Eye of Sherlock Holmes: Uncovering User Private Attribute Profiling via Vision-Language Model Agentic Framework

Feiran Liu, Yuzhe Zhang, Xinyi Huang +9

Our research reveals a new privacy risk associated with the vision-language model (VLM) agentic framework: the ability to infer sensitive attributes (e.g., age and health informati…

eess.AS2025

Shallow Flow Matching for Coarse-to-Fine Text-to-Speech Synthesis

Dong Yang, Yiyi Cai, Yuki Saito +2

We propose Shallow Flow Matching (SFM), a novel mechanism that enhances flow matching (FM)-based text-to-speech (TTS) models within a coarse-to-fine generation paradigm. Unlike con…