2 papers
cs.IT2026
Polynomially Improved Lower Bounds for Trifferent Codes via Locally Sparse -Uniform Hypergraphs
Xuejiao Han, Yubo Sun, Gennian Ge
A ternary code is \emph{trifferent} if every three distinct codewords have a coordinate in which their symbols are pairwise distinct. Let be the maximum size of a trifferent…
cs.IT2025
On hierarchical secure aggregation against relay and user collusion
Min Xu, Xuejiao Han, Kai Wan +1
Secure aggregation (SA) is fundamental to privacy preservation in federated learning (FL), enabling model aggregation while preventing disclosure of individual user updates. This p…