Zheng Qin

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 …

Learning to Rank Features for Recommendation over Multiple Categories

2016

Incorporating phrase-level sentiment analysis on users' textual reviews for recommendation has became a popular meth-od due to its explainable property for latent features and high prediction accuracy. However, the inherent limitations of the existing model …

Sequential Recommendation with User Memory Networks

2018

User preferences are usually dynamic in real-world recommender systems, and a user»s historical behavior records may not be equally important when predicting his/her future interests. Existing recommendation algorithms -- including both shallow and deep approaches …