Lixin Zhang

collaborators

2 papers

math.OC2026

The Grimmer--Shu--Wang Certificate and the Drori--Teboulle Minimax Constant-Stepsize Bound for $N \geq 3$

Lixing Zhang

We prove, for every horizon $N\ge 3$, the existence of the strengthened low-rank performance-estimation certificate proposed by Grimmer, Shu, and Wang for the Drori--Teboulle con…

cs.LG2026

Byzantine-Robust Distributed Sparse Learning Revisited

Yuxuan Wang, Lixin Zhang, Kangqiang Li

We revisit Byzantine robust distributed estimation for high-dimensional sparse linear models. By combining local $ℓ_{1}$ -regularized robust estimation with robust aggregation at t…

The Grimmer--Shu--Wang Certificate and the Drori--Teboulle Minimax Constant-Stepsize Bound for N≥3

Byzantine-Robust Distributed Sparse Learning Revisited

The Grimmer--Shu--Wang Certificate and the Drori--Teboulle Minimax Constant-Stepsize Bound for $N \geq 3$