Fangqi Li

Linear Functionality Equivalence Attack Against Deep Neural Network Watermarks and a Defense Method by Neuron Mapping

2023 · IEEE Transactions on Information Forensics and Security

As an ownership verification technique for deep neural networks, the white-box neural network watermark is being challenged by the functionality equivalence attack. By leveraging the structural symmetry within a deep neural network and manipulating the …

Measuring and Understanding Crowdturfing in the App Store

2023 · Information

Application marketplaces collect ratings and reviews from users to provide references for other consumers. Many crowdturfing activities abuse user reviews to manipulate the reputation of an app and mislead other consumers. To understand and improve …