Xiaodong Lin

Efficient and Secure Decision Tree Classification for Cloud-Assisted Online Diagnosis Services

2019 · IEEE Transactions on Dependable and Secure Computing

Decision tree classification has become a prevailing technique for online diagnosis services. By outsourcing computation intensive tasks to a cloud server, cloud-assisted online diagnosis services are better ways for cases that the storage and computation …

Privacy-Preserving Task Matching With Threshold Similarity Search via Vehicular Crowdsourcing

2021 · IEEE Transactions on Vehicular Technology

In vehicular crowdsourcing, task requesters rely on a server to distribute spatial crowdsourcing tasks to on-road vehicular workers based on interests and locations. To protect the privacy of the interests and locations, both requesters and …

Understanding and Detecting Mobile Ad Fraud Through the Lens of Invalid Traffic

2021

Along with gaining popularity of Real-Time Bidding (RTB) based programmatic advertising, the click farm based invalid traffic, which leverages massive real smartphones to carry out large-scale ad fraud campaigns, is becoming one of the major …

Understanding Flash-Loan-based Wash Trading

2022

Flash Loan, a popular lending service in the decentralized finance (DeFi) ecosystem, allows users to borrow a large number of virtual assets without any collateral. It can be leveraged to support many financial activities (such …