collaborators

5 papers

cs.GT2026

A Nearly Tight Lower Bound for Matroid Intersection Prophet Inequalities

Dimitris Fotakis, Charalampos Platanos, Thanos Tolias

We study prophet inequalities under intersections of partition matroids, where an online algorithm irrevocably selects elements with independent nonnegative values drawn from k…

cs.DS2026

Online Sorting with Our Eyes Wide Shut

Charalampos Platanos, Thanos Tolias

In Online Sorting, we are given an array of initially empty cells. At each time step , an element arrives and must be placed irrevocably into an empt…

cs.GT2025

Online Resource Allocation via Static Bundle Pricing

Dimitris Fotakis, Charalampos Platanos, Thanos Tolias

Online Resource Allocation addresses the problem of efficiently allocating limited resources to buyers with incomplete knowledge of future requests. In our setting, buyers arrive s…

cs.DS2025

A Polylogarithmic Competitive Algorithm for Stochastic Online Sorting and TSP

Andreas Kalavas, Charalampos Platanos, Thanos Tolias

In \emph{Online Sorting}, an array of initially empty cells is given. At each time step , an element arrives and must be placed irrevocably into an empty cel…

cs.DS2025

A Polylogarithmic Competitive Algorithm for Stochastic Online Sorting and TSP

Andreas Kalavas, Charalampos Platanos, Thanos Tolias

In \emph{Online Sorting}, an array of initially empty cells is given. At each time step , an element arrives and must be placed irrevocably into an empty cel…