Search Results for author: Argyrios Deligkas

Found 5 papers, 1 papers with code

The Complexity of Envy-Free Graph Cutting

no code implementations12 Dec 2023 Argyrios Deligkas, Eduard Eiben, Robert Ganian, Thekla Hamm, Sebastian Ordyniak

The problem is NP-complete, and we analyze its complexity with respect to two natural complexity measures: the number of agents and the number of edges in the graph.

Fairness

Some coordination problems are harder than others

no code implementations6 Nov 2023 Argyrios Deligkas, Eduard Eiben, Gregory Gutin, Philip R. Neary, Anders Yeo

Objectives (i) and (iii) are tractable problems in pure coordination games, but for anti-coordination games are NP-hard.

Optimizing Reachability Sets in Temporal Graphs by Delaying

no code implementations13 Apr 2020 Argyrios Deligkas, Igor Potapov

The second, imposes independent delays on the time labels of every edge of the graph. cWe provide a thorough investigation of the computational complexity of different objectives related to reachability sets when these operations are used.

Epidemiology Data Structures and Algorithms Computational Complexity Computers and Society Social and Information Networks

Crystal Structure Prediction via Oblivious Local Search

1 code implementation27 Mar 2020 Dmytro Antypov, Argyrios Deligkas, Vladimir Gusev, Matthew J. Rosseinsky, Paul G. Spirakis, Michail Theofilatos

In addition, due to the chemical expertise involved in the parameter-tuning, these approaches can be {\em biased} towards previously-known crystal structures.

Computational Engineering, Finance, and Science

Learning Approximately Optimal Contracts

no code implementations16 Nov 2018 Alon Cohen, Moran Koren, Argyrios Deligkas

Furthermore, we show that when there are only two possible outcomes or the agent is risk-neutral, the algorithm's outcome approximates the optimal contract described in the classical theory.

Cannot find the paper you are looking for? You can Submit a new open access paper.