Search Results for author: Vahid Roostapour

Found 6 papers, 0 papers with code

Runtime Analysis of Evolutionary Algorithms with Biased Mutation for the Multi-Objective Minimum Spanning Tree Problem

no code implementations22 Apr 2020 Vahid Roostapour, Jakob Bossek, Frank Neumann

We consider the Minimum Spanning Tree (MST) problem in a single- and multi-objective version, and introduce a biased mutation, which puts more emphasis on the selection of edges of low rank in terms of low domination number.

Combinatorial Optimization Evolutionary Algorithms

Runtime Analysis of RLS and (1+1) EA for the Dynamic Weighted Vertex Cover Problem

no code implementations6 Mar 2019 Mojgan Pourhassan, Vahid Roostapour, Frank Neumann

Similar to the classical case, the dynamic changes that we consider on the weighted vertex cover problem are adding and removing edges to and from the graph.

Analysis of Baseline Evolutionary Algorithms for the Packing While Travelling Problem

no code implementations13 Feb 2019 Vahid Roostapour, Mojgan Pourhassan, Frank Neumann

In this paper, variations of the Packing While Travelling (PWT) -- also known as the non-linear knapsack problem -- are studied as an attempt to analyse the behaviour of EAs on non-linear problems from theoretical perspective.

Evolutionary Algorithms

Pareto Optimization for Subset Selection with Dynamic Cost Constraints

no code implementations14 Nov 2018 Vahid Roostapour, Aneta Neumann, Frank Neumann, Tobias Friedrich

We also consider EAMC, a new evolutionary algorithm with polynomial expected time guarantee to maintain $\phi$ approximation ratio, and NSGA-II with two different population sizes as advanced multi-objective optimization algorithm, to demonstrate their challenges in optimizing the maximum coverage problem.

Analysis of Evolutionary Algorithms in Dynamic and Stochastic Environments

no code implementations22 Jun 2018 Vahid Roostapour, Mojgan Pourhassan, Frank Neumann

Many real-world optimization problems occur in environments that change dynamically or involve stochastic components.

Evolutionary Algorithms

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