Xiaorui Liu

Federated IoT Interaction Vulnerability Analysis

2023

IoT devices provide users with great convenience in smart homes. However, the interdependent behaviors across devices may yield unexpected interactions. To analyze the potential IoT interaction vulnerabilities, in this paper, we propose a federated and …

Enhancing Graph Representations Learning with Decorrelated Propagation

2023

In recent years, graph neural networks (GNNs) have been widely used in many domains due to their powerful capability in representation learning on graph-structured data. While a majority of extant studies focus on mitigating the …

Quantifying the Risk of Out-of-Gas Conditions in Ethereum Smart Contracts

2025

Ethereum smart contracts operate with hundreds of billions of dollars, promising algorithmic fairness and guaranteed execution. But in reality, the guaranteed execution promise is often unfulfilled. For instance, a smart contract might reject the withdrawal …

A Survey on Dialogue Systems

2017 · ACM SIGKDD Explorations Newsletter

Dialogue systems have attracted more and more attention. Recent advances on dialogue systems are overwhelmingly contributed by deep learning techniques, which have been employed to enhance a wide range of big data applications such as …