Search Results for author: Duc-Cuong Dang

Found 10 papers, 0 papers with code

Runtime Analyses of NSGA-III on Many-Objective Problems

no code implementations17 Apr 2024 Andre Opris, Duc-Cuong Dang, Frank Neumann, Dirk Sudholt

NSGA-II and NSGA-III are two of the most popular evolutionary multi-objective algorithms used in practice.

Analysing the Robustness of NSGA-II under Noise

no code implementations7 Jun 2023 Duc-Cuong Dang, Andre Opris, Bahare Salehi, Dirk Sudholt

To our knowledge, this is the first proof that NSGA-II can outperform GSEMO and the first runtime analysis of NSGA-II in noisy optimisation.

Evolutionary Algorithms

Crossover Can Guarantee Exponential Speed-Ups in Evolutionary Multi-Objective Optimisation

no code implementations31 Jan 2023 Duc-Cuong Dang, Andre Opris, Dirk Sudholt

We provide a theoretical analysis of the well-known EMO algorithms GSEMO and NSGA-II to showcase the possible advantages of crossover: we propose classes of "royal road" functions on which these algorithms cover the whole Pareto front in expected polynomial time if crossover is being used.

Evolutionary Algorithms

Runtime Analysis of Fitness-Proportionate Selection on Linear Functions

no code implementations23 Aug 2019 Duc-Cuong Dang, Anton Eremeev, Per Kristian Lehre

In contrast to this negative result, we also show that for any linear function with polynomially bounded weights, the EA achieves a polynomial expected runtime if the mutation rate is reduced to $\Theta(1/n^2)$ and the population size is sufficiently large.

Evolutionary Algorithms

Level-Based Analysis of the Univariate Marginal Distribution Algorithm

no code implementations26 Jul 2018 Duc-Cuong Dang, Per Kristian Lehre, Phan Trung Hai Nguyen

The facility and generality of our arguments suggest that this is a promising approach to derive bounds on the expected optimisation time of EDAs.

Escaping Local Optima using Crossover with Emergent or Reinforced Diversity

no code implementations10 Aug 2016 Duc-Cuong Dang, Tobias Friedrich, Timo Kötzing, Martin S. Krejca, Per Kristian Lehre, Pietro S. Oliveto, Dirk Sudholt, Andrew M. Sutton

This proves a sizeable advantage of all variants of the ($\mu$+1) GA compared to (1+1) EA, which requires time $\Theta(n^k)$.

Populations can be essential in tracking dynamic optima

no code implementations12 Jul 2016 Duc-Cuong Dang, Thomas Jansen, Per Kristian Lehre

It is often claimed that evolutionary algorithms are particularly suitable for dynamic optimisation because a large population can contain different solutions that may be useful in the future.

Evolutionary Algorithms

Self-adaptation of Mutation Rates in Non-elitist Populations

no code implementations17 Jun 2016 Duc-Cuong Dang, Per Kristian Lehre

Experimental results indicate that self-adaptation, where parameter settings are encoded in the genomes of individuals, can be effective in continuous optimisation.

Evolutionary Algorithms

Level-Based Analysis of Genetic Algorithms for Combinatorial Optimization

no code implementations7 Dec 2015 Duc-Cuong Dang, Anton V. Eremeev, Per Kristian Lehre

The paper is devoted to upper bounds on run-time of Non-Elitist Genetic Algorithms until some target subset of solutions is visited for the first time.

Combinatorial Optimization

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