137 citations · 150 across the 9 of their papers we have counts for
4 papers · 1 filter
Sparsification Under Siege: Dual-Level Defense Against Poisoning in Communication-Efficient Federated Learning
Zhiyong Jin, Runhua Xu, Chao Li +3
Gradient sparsification, while mitigating communication bottlenecks in Federated Learning (FL), fundamentally alters the geometric landscape of model updates. We reveal that the re…
Kronos: A Secure and Generic Sharding Blockchain Consensus with Optimized Overhead
Yizhong Liu, Andi Liu, Yuan Lu +5
Sharding enhances blockchain scalability by dividing the network into shards, each managing specific unspent transaction outputs or accounts. As an introduced new transaction type,…
Building Blocks of Sharding Blockchain Systems: Concepts, Approaches, and Open Problems
Yizhong Liu, Jianwei Liu, Marcos Antonio Vaz Salles +5
Sharding is the prevalent approach to breaking the trilemma of simultaneously achieving decentralization, security, and scalability in traditional blockchain systems, which are imp…
A comprehensive survey on smart contract construction and execution: paradigms, tools, and systems
Bin Hu, Zongyang Zhang, Jianwei Liu +4
Smart contracts are regarded as one of the most promising and appealing notions in blockchain technology. Their self-enforcing and event-driven features make some online activities…