Xiaofeng Chen

Privacy-Preserving Collaborative Model Learning: The Case of Word Vector Training

2018 · IEEE Transactions on Knowledge and Data Engineering

Nowadays, machine learning is becoming a new paradigm for mining hidden knowledge in big data. The collection and manipulation of big data not only create considerable values, but also raise serious privacy concerns. To protect …

CDEdit: Redactable Blockchain with Cross-audit and Diversity Editing

2022

Redactable blockchain allows modifiers or voting committees with modification privileges to edit the data on the chain. Among them, trapdoor holders in chameleon-based hash redactable blockchains can quickly compute hash collisions for arbitrary data without …

LB3AS: Lightweight Blockchain-Assisted Anonymous Authentication Scheme for Fog-Cloud-Based Internet of Medical Things

2025 · IEEE Internet of Things Journal

The flourishing development of the Internet of Medical Things (IoMT) is bringing personalized and timely healthcare to an increasing number of people. Fog-cloud-based IoMT pushes computing and data processing to the edge network, enabling low …