File:DE Meta-Fitness Landscape (Sphere and Rosenbrock).JPG

From Vigyanwiki

Original file ‎(1,050 × 698 pixels, file size: 158 KB, MIME type: image/jpeg)

This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.

This image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}.

Summary

Description
English: Performance landscape showing how basic Differential Evolution (DE) performs in aggregate on the Sphere and Rosenbrock benchmark problems when varying the two DE parameters NP and F, and keeping fixed CR=0.9. Lower meta-fitness values means better DE performance. Such a performance landscape is very time-consuming to compute, especially for optimizers with several behavioural parameters, but it can be searched efficiently using the simple meta-optimization approach by Pedersen implemented in SwarmOps to uncover DE parameters with good performance.
Date
Source Own work
Author Pedersen, M.E.H., Tuning & Simplifying Heuristical Optimization, PhD Thesis, 2010, University of Southampton, School of Engineering Sciences, Computational Engineering and Design Group.

Licensing

Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

inception

1 January 2010

media type

image/jpeg

checksum

3415bbd75ff8d3144e808ae1690d6c6158322a94

determination method: SHA-1

data size

162,200 byte

height

698 pixel

width

1,050 pixel

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current13:03, 19 March 2010Thumbnail for version as of 13:03, 19 March 20101,050 × 698 (158 KB)wikimediacommons>Optimering{{Information |Description={{en|1=Performance landscape showing how basic Differential Evolution (DE) performs in aggregate on the Sphere and Rosenbrock benchmark problems when varying the two DE parameters NP and F, and keeping fixed CR=0.9. Lower meta-f

The following page uses this file:

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitise it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from ‘https://www.vigyanwiki.in/wiki/File:DE_Meta-Fitness_Landscape_(Sphere_and_Rosenbrock).JPG’