activity
20232025
most citedUnderstanding Multi-Turn Toxic Behaviors in Open-Domain Chatbots

17 citations · 35 across the 9 of their papers we have counts for

collaborators

9 papers

cs.SD2025

ClearMask: Noise-Free and Naturalness-Preserving Protection Against Voice Deepfake Attacks

Yuanda Wang, Bocheng Chen, Hanqing Guo +3

Voice deepfake attacks, which artificially impersonate human speech for malicious purposes, have emerged as a severe threat. Existing defenses typically inject noise into human spe…

cs.CR2024

Protecting Activity Sensing Data Privacy Using Hierarchical Information Dissociation

Guangjing Wang, Hanqing Guo, Yuanda Wang +3

Smartphones and wearable devices have been integrated into our daily lives, offering personalized services. However, many apps become overprivileged as their collected sensing data…

cs.CL2024

The Dark Side of Human Feedback: Poisoning Large Language Models via User Inputs

Bocheng Chen, Hanqing Guo, Guangjing Wang +2

Large Language Models (LLMs) have demonstrated great capabilities in natural language understanding and generation, largely attributed to the intricate alignment process using huma…

cs.CR2023★ 2 cited

Beyond Boundaries: A Comprehensive Survey of Transferable Attacks on AI Systems

Guangjing Wang, Ce Zhou, Yuanda Wang +3

Transferable attacks allow adversarial manipulations or learned attack mechanisms constructed in one setting to compromise other AI systems, potentially reducing attack costs and a…

cs.CR2023★ 1 cited

Jailbreaker in Jail: Moving Target Defense for Large Language Models

Bocheng Chen, Advait Paliwal, Qiben Yan

Large language models (LLMs), known for their capability in understanding and following instructions, are vulnerable to adversarial attacks. Researchers have found that current com…

cs.CR2023★ 1 cited

PhantomSound: Black-Box, Query-Efficient Audio Adversarial Attack via Split-Second Phoneme Injection

Hanqing Guo, Guangjing Wang, Yuanda Wang +3

In this paper, we propose PhantomSound, a query-efficient black-box attack toward voice assistants. Existing black-box adversarial attacks on voice assistants either apply substitu…

cs.DC2023

DynamicFL: Balancing Communication Dynamics and Client Manipulation for Federated Learning

Bocheng Chen, Nikolay Ivanov, Guangjing Wang +1

Federated Learning (FL) is a distributed machine learning (ML) paradigm, aiming to train a global model by exploiting the decentralized data across millions of edge devices. Compar…

cs.CR2023★ 17 cited

Understanding Multi-Turn Toxic Behaviors in Open-Domain Chatbots

Bocheng Chen, Guangjing Wang, Hanqing Guo +2

Recent advances in natural language processing and machine learning have led to the development of chatbot models, such as ChatGPT, that can engage in conversational dialogue with…

cs.SD2023★ 14 cited

VSMask: Defending Against Voice Synthesis Attack via Real-Time Predictive Perturbation

Yuanda Wang, Hanqing Guo, Guangjing Wang +2

Deep learning based voice synthesis technology generates artificial human-like speeches, which has been used in deepfakes or identity theft attacks. Existing defense mechanisms inj…