Search Results for author: Denis Antipov

Found 14 papers, 0 papers with code

Using 3-Objective Evolutionary Algorithms for the Dynamic Chance Constrained Knapsack Problem

no code implementations9 Apr 2024 Ishara Hewa Pathiranage, Frank Neumann, Denis Antipov, Aneta Neumann

We introduce a 3-objective formulation that is able to deal with the stochastic and dynamic components at the same time and is independent of the confidence level required for the constraint.

Evolutionary Algorithms

Already Moderate Population Sizes Provably Yield Strong Robustness to Noise

no code implementations2 Apr 2024 Denis Antipov, Benjamin Doerr, Alexandra Ivanova

The only previous result in this direction regarded the less realistic one-bit noise model, required a population size super-linear in the problem size, and proved a runtime guarantee roughly cubic in the noiseless runtime for the OneMax benchmark.

Evolutionary Algorithms

Rigorous Runtime Analysis of Diversity Optimization with GSEMO on OneMinMax

no code implementations14 Jul 2023 Denis Antipov, Aneta Neumann, Frank Neumann

The evolutionary diversity optimization aims at finding a diverse set of solutions which satisfy some constraint on their fitness.

Coevolutionary Pareto Diversity Optimization

no code implementations12 Apr 2022 Aneta Neumann, Denis Antipov, Frank Neumann

Our new Pareto Diversity optimization approach uses this bi-objective formulation to optimize the problem while also maintaining an additional population of high quality solutions for which diversity is optimized with respect to a given diversity measure.

Lazy Parameter Tuning and Control: Choosing All Parameters Randomly From a Power-Law Distribution

no code implementations14 Apr 2021 Denis Antipov, Maxim Buzdalov, Benjamin Doerr

On the other hand, this algorithm is also very efficient on jump functions, where the best static parameters are very different from those necessary to optimize simple problems.

Evolutionary Algorithms

First Steps Towards a Runtime Analysis When Starting With a Good Solution

no code implementations22 Jun 2020 Denis Antipov, Maxim Buzdalov, Benjamin Doerr

The mathematical runtime analysis of evolutionary algorithms traditionally regards the time an algorithm needs to find a solution of a certain quality when initialized with a random population.

Evolutionary Algorithms

Runtime Analysis of a Heavy-Tailed $(1+(λ,λ))$ Genetic Algorithm on Jump Functions

no code implementations5 Jun 2020 Denis Antipov, Benjamin Doerr

To obtain this performance, however, a non-standard parameter setting depending on the jump size $k$ was used.

Fast Mutation in Crossover-based Algorithms

no code implementations14 Apr 2020 Denis Antipov, Maxim Buzdalov, Benjamin Doerr

In this first runtime analysis of a crossover-based algorithm using a heavy-tailed choice of the mutation rate, we show an even stronger impact.

A Rigorous Runtime Analysis of the $(1 + (λ, λ))$ GA on Jump Functions

no code implementations14 Apr 2020 Denis Antipov, Benjamin Doerr, Vitalii Karavaev

In this work, we conduct the first runtime analysis of this algorithm on a multimodal problem class, the jump functions benchmark.

Evolutionary Algorithms

The Efficiency Threshold for the Offspring Population Size of the ($μ$, $λ$) EA

no code implementations15 Apr 2019 Denis Antipov, Benjamin Doerr, Quentin Yang

Understanding when evolutionary algorithms are efficient or not, and how they efficiently solve problems, is one of the central research tasks in evolutionary computation.

Evolutionary Algorithms

A Tight Runtime Analysis for the $(μ+ λ)$ EA

no code implementations28 Dec 2018 Denis Antipov, Benjamin Doerr

In this work, we analyze this long-standing problem and show the asymptotically tight result that the runtime $T$, the number of iterations until the optimum is found, satisfies \[E[T] = \Theta\bigg(\frac{n\log n}{\lambda}+\frac{n}{\lambda / \mu} + \frac{n\log^+\log^+ \lambda/ \mu}{\log^+ \lambda / \mu}\bigg),\] where $\log^+ x := \max\{1, \log x\}$ for all $x > 0$.

Evolutionary Algorithms

Precise Runtime Analysis for Plateau Functions

no code implementations4 Jun 2018 Denis Antipov, Benjamin Doerr

To gain a better theoretical understanding of how evolutionary algorithms (EAs) cope with plateaus of constant fitness, we propose the $n$-dimensional Plateau$_k$ function as natural benchmark and analyze how different variants of the $(1 + 1)$ EA optimize it.

Evolutionary Algorithms

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