collaborators

9 papers

quant-ph2026

Fourier Symmetrization for Geometric Quantum Machine Learning

Letao Wang, Abdel Lisser, Sreejith Sreekumar +1

Geometric quantum machine learning incorporates symmetry into quantum models, but how symmetry shapes their expressivity and guides effective model design remains insufficiently un…

eess.SP2026

Distributionally Robust Linearly Constrained Minimum Variance Beamforming Under Steering-Vector Mismatch

Raneem Madani, Abdel Lisser, Zeno Toffano

Linearly constrained minimum variance (LCMV) beamforming is a fundamental technique for controlling the array response toward multiple desired signals while suppressing interferenc…

math.OC2026

Distributionally Robust Complex Chance-Constrained Optimization

Raneem Madani, Abdel Lisser, Zeno Toffano

This paper introduces a framework for Chance-Constrained Optimization with Complex Variables, addressing complex linear programming for both individual and joint probabilistic cons…

math.GM2026

Robust Chance Constrained Complex Zero-Sum Games

Raneem Madani, Abdel Lisser, Zeno Toffano

This paper develops a unified framework for zero-sum games in which both the pure strategies and the payoff matrices contain complex-valued entries. By leveraging a linear isomorph…

quant-ph2026

A Complex-Valued Continuous-Variable Quantum Approximation Optimization Algorithm (CCV-QAOA)

Raneem Madani, Abdel Lisser, Zeno Toffano

Continuous-variable (CV) quantum systems offer a natural framework for continuous optimization through their infinite-dimensional Hilbert spaces. In this paper, we propose the Comp…

cs.NE2026

Distributionally Robust Geometric Joint Chance-Constrained Optimization: Neurodynamic Approaches

Ange Valli, Siham Tassouli, Abdel Lisser

This paper proposes a two-time scale neurodynamic duplex approach to solve distributionally robust geometric joint chance-constrained optimization problems. The probability distrib…

math.OC2026

Decision-dependent distributionally robust standard quadratic optimization with Wasserstein ambiguity

Immanuel M. Bomze, Daniel de Vicente, Abdel Lisser +1

The standard quadratic optimization problem (StQP) consists of minimizing a quadratic form over the standard simplex. Without assuming convexity or concavity of the quadratic form,…

math.OC2025

Chance-Constrained Optimization with Complex Variables

Raneem Madani, Abdel Lisser

Optimization problems involving complex variables, when solved, are typically transformed into real variables, often at the expense of convergence rate and interpretability. This p…

math.OC2025

Convexity of chance constraints for elliptical and skewed distributions with copula structures dependent on decision variables

Heng Zhang, Abdel Lisser

Chance constraints describe a set of given random inequalities depending on the decision vector satisfied with a large enough probability. They are widely used in decision making u…