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Xiaofei Xie

22 accepted papers

2026

Adversarial Attack on Black-Box Multi-Agent by Adaptive Perturbation

AAAI 2026technical

Evaluating security and reliability for multi-agent systems (MAS) is urgent as they become increasingly prevalent in various applications. As an evaluation technique, existing adversarial attack frameworks face certain limitations, e.g., impracticality due to the requirement of white-box information

Cited by 0SourcePDFScholar
2026

From Chaos to Clarity: A Knowledge Graph-Driven Audit Dataset Generation Framework for LLM Unlearning

AAAI 2026technical

Recently LLMs have faced increasing demands to selectively remove specific information through Machine Unlearning. While evaluating unlearning effectiveness is crucial, existing benchmarks suffer from fundamental limitations in audit dataset generation from unstructured corpora. We identify two crit

Cited by 0SourcePDFScholar
2026

Required Spine Optional Limbs: Heterogeneous Federated Learning via Backbone-sharing and Activation-guided Selection

ICML 2026spotlight

Although Federated Learning (FL) offers advantages in privacy-preserving for cross-device collaborative learning, its practical deployment remains severely constrained by heterogeneous hardware resources and non-IID (non-independent and identically distributed) data across devices. Sub-model extract…

Cited by 0SourceScholar
2025

Do Code Semantics Help? A Comprehensive Study on Execution Trace-Based Information for Code Large Language Models

EMNLP 2025

Code Large Language Models (Code LLMs) have opened a new era in programming with their impressive capabilities. However, recent research has revealed critical limitations in their ability to reason about runtime behavior and understand the actual functionality of programs, which poses significant ch

2025

MMLU-ProX: A Multilingual Benchmark for Advanced Large Language Model Evaluation

EMNLP 2025

Existing large language model (LLM) evaluation benchmarks primarily focus on English, while current multilingual tasks lack parallel questions that specifically assess cross-lingual reasoning abilities. This dual limitation makes it challenging to assess LLMs’ performance in the multilingual setting

Cited by 0SourcePDFScholar
2025

MultiSFL: Towards Accurate Split Federated Learning via Multi-Model Aggregation and Knowledge Replay

AAAI 2025technical

Although Split Federated Learning (SFL) effectively enables knowledge sharing among resource-constrained clients, it suffers from low training performance due to the neglect of data heterogeneity and catastrophic forgetting problems. To address these issues, we propose a novel SFL approach named Mu…

Cited by 0SourcePDFScholar
2025

Rising from Ashes: Generalized Federated Learning via Dynamic Parameter Reset

NeurIPS 2025poster

Although Federated Learning (FL) is promising in privacy-preserving collaborative model training, it faces low inference performance due to heterogeneous data among clients. Due to heterogeneous data in each client, FL training easily learns the specific overfitting features. Existing FL methods ad…

Cited by 0SourceScholar
2025

Understanding Individual Agent Importance in Multi-Agent System via Counterfactual Reasoning

AAAI 2025technical

Explaining multi-agent systems (MAS) is urgent as these systems become increasingly prevalent in various applications. Previous work has provided explanations for the actions or states of agents, yet falls short in understanding the blackboxed agent’s importance within a MAS and the overall team str…

Cited by 0SourcePDFScholar
2024

SampDetox: Black-box Backdoor Defense via Perturbation-based Sample Detoxification

NeurIPS 2024poster

The advancement of Machine Learning has enabled the widespread deployment of Machine Learning as a Service (MLaaS) applications. However, the untrustworthy nature of third-party ML services poses backdoor threats. Existing defenses in MLaaS are limited by their reliance on training samples or white-…

Cited by 1SourcePDFScholar
2023

A Black-Box Attack on Code Models via Representation Nearest Neighbor Search

EMNLP 2023long findings

Existing methods for generating adversarial code examples face several challenges: limted availability of substitute variables, high verification costs for these substitutes, and the creation of adversarial samples with noticeable perturbations. To address these concerns, our proposed approach, RNNS…

Cited by 0SourceScholar
2023

Evading DeepFake Detectors via Adversarial Statistical Consistency

CVPR 2023poster

In recent years, as various realistic face forgery techniques known as DeepFake improves by leaps and bounds, more and more DeepFake detection techniques have been proposed. These methods typically rely on detecting statistical differences between natural (i.e., real) and DeepFake-generated images i…

Cited by 59SourcePDFScholar
2023

Multi-target Backdoor Attacks for Code Pre-trained Models

ACL 2023long

Backdoor attacks for neural code models have gained considerable attention due to the advancement of code intelligence. However, most existing works insert triggers into task-specific data for code-related downstream tasks, thereby limiting the scope of attacks. Moreover, the majority of attacks for…

2023

Neural Episodic Control with State Abstraction

ICLR 2023top-25%

Existing Deep Reinforcement Learning (DRL) algorithms suffer from sample inefficiency. Generally, episodic control-based approaches are solutions that leverage highly rewarded past experiences to improve sample efficiency of DRL algorithms. However, previous episodic control-based approaches fail to…

Cited by 14SourcePDFScholar
2021

AVA: Adversarial Vignetting Attack against Visual Recognition

IJCAI 2021poster

Vignetting is an inherent imaging phenomenon within almost all optical systems, showing as a radial intensity darkening toward the corners of an image. Since it is a common effect for photography and usually appears as a slight intensity variation, people usually regard it as a part of a photo and w…

Cited by 36SourcePDFScholar
2021

Decision-Guided Weighted Automata Extraction from Recurrent Neural Networks

AAAI 2021technical

Recurrent Neural Networks (RNNs) have demonstrated their effectiveness in learning and processing sequential data (e.g., speech and natural language). However, due to the black-box nature of neural networks, understanding the decision logic of RNNs is quite challenging. Some recent progress has been…

Cited by 25SourcePDFScholar
2021

EfficientDeRain: Learning Pixel-wise Dilation Filtering for High-Efficiency Single-Image Deraining

AAAI 2021technical

Single-image deraining is rather challenging due to the unknown rain model. Existing methods often make specific assumptions of the rain model, which can hardly cover many diverse circumstances in the real world, compelling them to employ complex optimization or progressive refinement. This, however…

2021

Learning To Adversarially Blur Visual Object Tracking

ICCV 2021poster

Motion blur caused by the moving of the object or camera during the exposure can be a key challenge for visual object tracking, affecting tracking accuracy significantly. In this work, we explore the robustness of visual object trackers against motion blur from a new angle, i.e., adversarial blur at…

Cited by 60PDFcodeScholar
2021

RNNRepair: Automatic RNN Repair via Model-based Analysis

ICML 2021spotlight

Deep neural networks are vulnerable to adversarial attacks. Due to their black-box nature, it is rather challenging to interpret and properly repair these incorrect behaviors. This paper focuses on interpreting and repairing the incorrect behaviors of Recurrent Neural Networks (RNNs). We propose a l…

Cited by 25SourcePDFScholar
2021

Retrieval-Augmented Generation for Code Summarization via Hybrid GNN

ICLR 2021spotlight

Source code summarization aims to generate natural language summaries from structured code snippets for better understanding code functionalities. However, automatic code summarization is challenging due to the complexity of the source code and the language gap between the source code and natural la…

2020

FakeSpotter: A Simple yet Robust Baseline for Spotting AI-Synthesized Fake Faces

IJCAI 2020poster

In recent years, generative adversarial networks (GANs) and its variants have achieved unprecedented success in image synthesis. They are widely adopted in synthesizing facial images which brings potential security concerns to humans as the fakes spread and fuel the misinformation. However, robust d…

2020

SPARK: Spatial-aware Online Incremental Attack Against Visual Tracking

ECCV 2020poster

Adversarial attacks of deep neural networks have been intensively studied on image, audio, natural language, patch, and pixel classification tasks. Nevertheless, as a typical, while important real-world application, the adversarial attacks of online video object tracking that traces an object's movi…

Cited by 112SourcePDFScholar
2020

Watch out! Motion is Blurring the Vision of Your Deep Neural Networks

NeurIPS 2020poster

The state-of-the-art deep neural networks (DNNs) are vulnerable against adversarial examples with additive random-like noise perturbations. While such examples are hardly found in the physical world, the image blurring effect caused by object motion, on the other hand, commonly occurs in practice, m…