activity
20222026
most citedRethinking the Reverse-engineering of Trojan Triggers

19 citations · 50 across the 26 of their papers we have counts for

collaborators

26 papers

cs.CR2026

Robustness-Aware Evaluation and Enhancement of Mutation-Based Fuzzing for Bug Discovery

Zirui Liu, Mengfan Xu, Juan Zhai +2

Mutation-based fuzzing is widely used to discover software vulnerabilities, but its randomness complicates rigorous evaluation and reliable bug detection. Prior work measures this…

cs.SE2026

CAROL: Context-Aware Online Learning for Fuzzer Scheduling

Zirui Liu, Mengfan Xu, Juan Zhai +2

Ensemble fuzzing runs multiple fuzzers on a target while a scheduler allocates CPU time among them. Existing schedulers base these decisions on compact summaries of past performanc…

cs.CR2026

False Friends in the Shell: Unveiling the Emoticon Semantic Confusion in Large Language Models

Weipeng Jiang, Xiaoyu Zhang, Juan Zhai +3

Emoticons are widely used in digital communication to convey affective intent, yet their safety implications for Large Language Models (LLMs) remain largely unexplored. In this pap…

cs.CV2025

PROMPTMINER: Black-Box Prompt Stealing against Text-to-Image Generative Models via Reinforcement Learning and Fuzz Optimization

Mingzhe Li, Renhao Zhang, Zhiyang Wen +4

Text-to-image (T2I) generative models such as Stable Diffusion and FLUX can synthesize realistic, high-quality images directly from textual prompts. The resulting image quality dep…

cs.SE2025

Rethinking Technology Stack Selection with AI Coding Proficiency

Xiaoyu Zhang, Weipeng Jiang, Shiqing Ma +5

Large language models (LLMs) are now an integral part of software development workflows and are reshaping the whole process. However, existing technology selection methods mainly f…

cs.CL2025

Mitigating Stylistic Biases of Machine Translation Systems via Monolingual Corpora Only

Xuanqi Gao, Weipeng Jiang, Juan Zhai +4

The advent of neural machine translation (NMT) has revolutionized cross-lingual communication, yet preserving stylistic nuances remains a significant challenge. While existing appr…

cs.SE2025★ 1 cited

ASSURE: Metamorphic Testing for AI-powered Browser Extensions

Xuanqi Gao, Juan Zhai, Shiqing Ma +2

The integration of Large Language Models (LLMs) into browser extensions has revolutionized web browsing, enabling sophisticated functionalities like content summarization, intellig…

cs.CR2025

Disappearing Ink: Obfuscation Breaks N-gram Code Watermarks in Theory and Practice

Gehao Zhang, Mingzhe Li, Eugene Bagdasarian +2

Large language models (LLMs) are increasingly used for code generation, making reliable identification of machine-generated code important for attribution, tracking, and misuse det…

cs.CV2025

EDITOR: Effective and Interpretable Prompt Inversion for Text-to-Image Diffusion Models

Mingzhe Li, Kejing Xia, Gehao Zhang +5

Text-to-image generation models~(e.g., Stable Diffusion) have achieved significant advancements, enabling the creation of high-quality and realistic images based on textual descrip…

cs.AI2025★ 2 cited

MCP-RADAR: A Multi-Dimensional Benchmark for Evaluating Tool Use Capabilities in Large Language Models

Xuanqi Gao, Siyi Xie, Juan Zhai +2

As Large Language Models (LLMs) evolve from passive text generators to active reasoning agents capable of interacting with external tools, the Model Context Protocol (MCP) has emer…

cs.AI2025

Holistic Audit Dataset Generation for LLM Unlearning via Knowledge Graph Traversal and Redundancy Removal

Weipeng Jiang, Juan Zhai, Shiqing Ma +4

In recent years, Large Language Models (LLMs) have faced increasing demands to selectively remove sensitive information, protect privacy, and comply with copyright regulations thro…

cs.SE2025

The Invisible Hand: Unveiling Provider Bias in Large Language Models for Code Generation

Xiaoyu Zhang, Juan Zhai, Shiqing Ma +5

Large Language Models (LLMs) have emerged as the new recommendation engines, surpassing traditional methods in both capability and scope, particularly in code generation. In this p…

cs.LG2024

Speculative Coreset Selection for Task-Specific Fine-tuning

Xiaoyu Zhang, Juan Zhai, Shiqing Ma +4

Task-specific fine-tuning is essential for the deployment of large language models (LLMs), but it requires significant computational resources and time. Existing solutions have pro…

cs.CL2024

Data-centric NLP Backdoor Defense from the Lens of Memorization

Zhenting Wang, Zhizhi Wang, Mingyu Jin +3

Backdoor attack is a severe threat to the trustworthiness of DNN-based language models. In this paper, we first extend the definition of memorization of language models from sample…

cs.AI2024

An Optimizable Suffix Is Worth A Thousand Templates: Efficient Black-box Jailbreaking without Affirmative Phrases via LLM as Optimizer

Weipeng Jiang, Zhenting Wang, Juan Zhai +3

Despite prior safety alignment efforts, mainstream LLMs can still generate harmful and unethical content when subjected to jailbreaking attacks. Existing jailbreaking methods fall…

cs.SE2024

Efficient DNN-Powered Software with Fair Sparse Models

Xuanqi Gao, Weipeng Jiang, Juan Zhai +3

With the emergence of the Software 3.0 era, there is a growing trend of compressing and integrating large models into software systems, with significant societal implications. Regr…

cs.CV2024

Towards General Robustness Verification of MaxPool-based Convolutional Neural Networks via Tightening Linear Approximation

Yuan Xiao, Shiqing Ma, Juan Zhai +3

The robustness of convolutional neural networks (CNNs) is vital to modern AI-driven systems. It can be quantified by formal verification by providing a certified lower bound, withi…

cs.SE2024★ 1 cited

CITADEL: Context Similarity Based Deep Learning Framework Bug Finding

Xiaoyu Zhang, Juan Zhai, Shiqing Ma +2

With the application of deep learning technology, tools of DL framework testing are in high demand. Existing DL framework testing tools have limited coverage of bug types. For exam…

cs.SE2024★ 1 cited

From Effectiveness to Efficiency: Uncovering Linguistic Bias in Large Language Model-based Code Generation

Weipeng Jiang, Xuanqi Gao, Juan Zhai +4

Large Language Models (LLMs) have demonstrated promising capabilities for code generation. While existing benchmarks evaluate the correctness and efficiency of LLM-generated code,…

cs.SE2023

DREAM: Debugging and Repairing AutoML Pipelines

Xiaoyu Zhang, Juan Zhai, Shiqing Ma +1

Deep Learning models have become an integrated component of modern software systems. In response to the challenge of model design, researchers proposed Automated Machine Learning (…

cs.LG2023

CILIATE: Towards Fairer Class-based Incremental Learning by Dataset and Training Refinement

Xuanqi Gao, Juan Zhai, Shiqing Ma +3

Due to the model aging problem, Deep Neural Networks (DNNs) need updates to adjust them to new data distributions. The common practice leverages incremental learning (IL), e.g., Cl…

cs.LG2023★ 7 cited

UNICORN: A Unified Backdoor Trigger Inversion Framework

Zhenting Wang, Kai Mei, Juan Zhai +1

The backdoor attack, where the adversary uses inputs stamped with triggers (e.g., a patch) to activate pre-planted malicious behaviors, is a severe threat to Deep Neural Network (D…

cs.CR2022★ 19 cited

Rethinking the Reverse-engineering of Trojan Triggers

Zhenting Wang, Kai Mei, Hailun Ding +2

Deep Neural Networks are vulnerable to Trojan (or backdoor) attacks. Reverse-engineering methods can reconstruct the trigger and thus identify affected models. Existing reverse-eng…

cs.CV2022★ 3 cited

BppAttack: Stealthy and Efficient Trojan Attacks against Deep Neural Networks via Image Quantization and Contrastive Adversarial Learning

Zhenting Wang, Juan Zhai, Shiqing Ma

Deep neural networks are vulnerable to Trojan attacks. Existing attacks use visible patterns (e.g., a patch or image transformations) as triggers, which are vulnerable to human ins…