activity
20202026
most citedThe ratio-cut polytope and K-means clustering

5 citations · 8 across the 10 of their papers we have counts for

collaborators

12 papers

math.OC2026

Treewidth and the complexity of box-constrained quadratic programs

Alberto Del Pia, Aida Khajavirad

We consider the problem of minimizing a sparse quadratic function over the unit hypercube. In binary quadratic programming, treewidth of the interaction graph is a central paramete…

math.OC2025

The complete edge relaxation for binary polynomial optimization

Alberto Del Pia, Aida Khajavirad

We consider the multilinear polytope, defined as the convex hull of the feasible region of a lifted binary polynomial optimization problem. We define a relaxation in an extended sp…

math.OC2025

Extended formulations for the multilinear polytope of acyclic hypergraphs

Alberto Del Pia, Aida Khajavirad

This article provides an overview of our joint work on binary polynomial optimization over the past decade. We define the multilinear polytope as the convex hull of the feasible re…

math.OC2024

Beyond hypergraph acyclicity: limits of tractability for pseudo-Boolean optimization

Alberto Del Pia, Aida Khajavirad

In this paper, we study the problem of minimizing a polynomial function with literals over all binary points, often referred to as pseudo-Boolean optimization. We investigate the f…

math.OC2023

The pseudo-Boolean polytope and polynomial-size extended formulations for binary polynomial optimization

Alberto Del Pia, Aida Khajavirad

With the goal of obtaining strong relaxations for binary polynomial optimization problems, we introduce the pseudo-Boolean polytope defined as the convex hull of the set of binary…

math.CO2022★ 1 cited

A polynomial-size extended formulation for the multilinear polytope of beta-acyclic hypergraphs

Alberto Del Pia, Aida Khajavirad

We consider the multilinear polytope defined as the convex hull of the set of binary points satisfying a collection of multilinear equations. The complexity of the facial structure…

math.OC2022★ 1 cited

On the strength of recursive McCormick relaxations for binary polynomial optimization

Aida Khajavirad

Recursive McCormick relaxations have been among the most popular convexification techniques for binary polynomial optimization problems. It is well-understood that both the quality…

math.OC2022

Explicit convex hull description of bivariate quadratic sets with indicator variables

Antonio De Rosa, Aida Khajavirad

We consider the nonconvex set , which is closely related to the feasible region of several diff…

math.OC2022

Rank-one Boolean tensor factorization and the multilinear polytope

Alberto Del Pia, Aida Khajavirad

We consider the NP-hard problem of finding the closest rank-one binary tensor to a given binary tensor, which we refer to as the rank-one Boolean tensor factorization (BTF) problem…

math.OC2021★ 1 cited

Efficient Joint Object Matching via Linear Programming

Antonio De Rosa, Aida Khajavirad

Joint object matching, also known as multi-image matching, namely, the problem of finding consistent partial maps among all pairs of objects within a collection, is a crucial task…

math.OC2020★ 5 cited

The ratio-cut polytope and K-means clustering

Antonio De Rosa, Aida Khajavirad

We introduce the ratio-cut polytope defined as the convex hull of ratio-cut vectors corresponding to all partitions of points in into at most clusters. This p…

math.OC2020

Linear Programming and Community Detection

Alberto Del Pia, Aida Khajavirad, Dmitriy Kunisky

The problem of community detection with two equal-sized communities is closely related to the minimum graph bisection problem over certain random graph models. In the stochastic bl…