1 citations · 4 across the 9 of their papers we have counts for
9 papers
Sharp First-Order Lower Bounds under -Polyak-Lojasiewicz Conditions
Saeed Masiha, Negar Kiyavash, Patrick Thiran
We study first-order oracle complexity under the -Polyak-Lojasiewicz condition for . For , we first show that global -sm…
Select-then-differentiate: Solving Bilevel Optimization with Manifold Lower-level Solution Sets
Saeed Masiha, Zebang Shen, Negar Kiyavash +1
We study optimistic bilevel optimization when the lower-level problem has a non-isolated manifold of minimizers. In this setting, the hyper-objective may be non-differentiable beca…
Zeroth-Order Stackelberg Control in Combinatorial Congestion Games
Saeed Masiha, Sepehr Elahi, Negar Kiyavash +1
We study Stackelberg (leader--follower) tuning of network parameters (tolls, capacities, incentives) in combinatorial congestion games, where selfish users choose discrete routes (…
Superquantile-Gibbs Relaxation for Minima-selection in Bilevel Optimization
Saeed Masiha, Zebang Shen, Negar Kiyavash +1
Bilevel optimization (BLO) becomes more challenging when the lower-level objective admits multiple minimizers. Compared with the commonly studied unique-minimizer setting, this int…
Optimal Local Convergence Rates of Stochastic First-Order Methods under Local -PL
Saeed Masiha, Saber Salehkaleybar, Niao He +2
We study the local convergence rate of stochastic first-order methods under a local -Polyak-Lojasiewicz (-PL) condition in a neighborhood of a target connected component $\ma…
Projection-Free Functional Constrained Optimization for Risk Aversion and Sparsity Control
Yi Cheng, Guanghui Lan, Saeed Masiha +1
We study projection-free methods for functional constrained optimization with convex or smooth nonconvex objectives. Such problems arise in applications such as portfolio optimizat…
Learning Algorithm Generalization Error Bounds via Auxiliary Distributions
Gholamali Aminian, Saeed Masiha, Laura Toni +1
Generalization error bounds are essential for comprehending how well machine learning models work. In this work, we suggest a novel method, i.e., the Auxiliary Distribution Method,…
f-divergences and their applications in lossy compression and bounding generalization error
Saeed Masiha, Amin Gohari, Mohammad Hossein Yassaee
In this paper, we provide three applications for -divergences: (i) we introduce Sanov's upper bound on the tail probability of the sum of independent random variables based on s…
Stochastic Second-Order Methods Improve Best-Known Sample Complexity of SGD for Gradient-Dominated Function
Saeed Masiha, Saber Salehkaleybar, Niao He +2
We study the performance of Stochastic Cubic Regularized Newton (SCRN) on a class of functions satisfying gradient dominance property with which holds in a wide range o…