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authorEduardo Pedroni <ep625@york.ac.uk>2014-05-06 14:29:37 +0100
committerEduardo Pedroni <ep625@york.ac.uk>2014-05-06 14:29:37 +0100
commit8189116ea4b5db4675e31dfd04a5687d55e29262 (patch)
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+<div class="subTitle">jcgp.backend.modules.es</div>
+<h2 title="Class EvolutionaryStrategy" class="title">Class EvolutionaryStrategy</h2>
+</div>
+<div class="contentContainer">
+<ul class="inheritance">
+<li>java.lang.Object</li>
+<li>
+<ul class="inheritance">
+<li><a href="../../../../jcgp/backend/modules/Module.html" title="class in jcgp.backend.modules">jcgp.backend.modules.Module</a></li>
+<li>
+<ul class="inheritance">
+<li>jcgp.backend.modules.es.EvolutionaryStrategy</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+<div class="description">
+<ul class="blockList">
+<li class="blockList">
+<dl>
+<dt>Direct Known Subclasses:</dt>
+<dd><a href="../../../../jcgp/backend/modules/es/MuPlusLambda.html" title="class in jcgp.backend.modules.es">MuPlusLambda</a>, <a href="../../../../jcgp/backend/modules/es/TournamentSelection.html" title="class in jcgp.backend.modules.es">TournamentSelection</a></dd>
+</dl>
+<hr>
+<br>
+<pre>public abstract class <span class="typeNameLabel">EvolutionaryStrategy</span>
+extends <a href="../../../../jcgp/backend/modules/Module.html" title="class in jcgp.backend.modules">Module</a></pre>
+<div class="block">This class specifies the characteristics of an evolutionary strategy. The evolutionary
+ strategy's job is to generate the next population of solutions. In JCGP this is done by modifying
+ the provided population object rather than creating a new one.
+ <br><br>
+ A typical implementation of EvolutionaryStratey iterates through the chromosomes
+ in the population and selects the individual(s) to be promoted. It then uses
+ <code>mutator.mutate()</code> to generically mutate the promoted individual(s). Parameter-dependent
+ strategies can be implemented by accessing the parameters via the resources
+ argument.
+ <br><br>
+ Parameters may be specified to control the implemented strategy. Any parameters
+ registered with <code>registerParameters()</code> should be displayed by the user interface,
+ if it is being used. See <a href="../../../../jcgp/backend/modules/Module.html" title="class in jcgp.backend.modules"><code>Module</code></a> for more information.
+ <br><br>
+ It is advisable to use <code>Resources.reportln()</code> and <code>Resources.report()</code>
+ to print any relevant information. Note that reportln() and report() are affected
+ by the report interval base parameter. Use <code>Resources.println()</code> and
+ <code>Resources.print()</code> to print information regardless of the current generation.
+ See <a href="../../../../jcgp/backend/resources/Resources.html" title="class in jcgp.backend.resources"><code>Resources</code></a> for more information.</div>
+<dl>
+<dt><span class="simpleTagLabel">Author:</span></dt>
+<dd>Eduardo Pedroni</dd>
+<dt><span class="seeLabel">See Also:</span></dt>
+<dd><a href="../../../../jcgp/backend/modules/Module.html" title="class in jcgp.backend.modules"><code>Module</code></a></dd>
+</dl>
+</li>
+</ul>
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+<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
+<tr>
+<th class="colFirst" scope="col">Modifier and Type</th>
+<th class="colLast" scope="col">Method and Description</th>
+</tr>
+<tr id="i0" class="altColor">
+<td class="colFirst"><code>abstract void</code></td>
+<td class="colLast"><code><span class="memberNameLink"><a href="../../../../jcgp/backend/modules/es/EvolutionaryStrategy.html#evolve-jcgp.backend.population.Population-jcgp.backend.modules.mutator.Mutator-">evolve</a></span>(<a href="../../../../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a>&nbsp;population,
+ <a href="../../../../jcgp/backend/modules/mutator/Mutator.html" title="class in jcgp.backend.modules.mutator">Mutator</a>&nbsp;mutator)</code>
+<div class="block">Performs the selection algorithm and uses the mutator to create
+ the next generation of solutions.</div>
+</td>
+</tr>
+</table>
+<ul class="blockList">
+<li class="blockList"><a name="methods.inherited.from.class.jcgp.backend.modules.Module">
+<!-- -->
+</a>
+<h3>Methods inherited from class&nbsp;jcgp.backend.modules.<a href="../../../../jcgp/backend/modules/Module.html" title="class in jcgp.backend.modules">Module</a></h3>
+<code><a href="../../../../jcgp/backend/modules/Module.html#getLocalParameters--">getLocalParameters</a>, <a href="../../../../jcgp/backend/modules/Module.html#toString--">toString</a></code></li>
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+<code>equals, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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+<h3>Method Detail</h3>
+<a name="evolve-jcgp.backend.population.Population-jcgp.backend.modules.mutator.Mutator-">
+<!-- -->
+</a>
+<ul class="blockListLast">
+<li class="blockList">
+<h4>evolve</h4>
+<pre>public abstract&nbsp;void&nbsp;evolve(<a href="../../../../jcgp/backend/population/Population.html" title="class in jcgp.backend.population">Population</a>&nbsp;population,
+ <a href="../../../../jcgp/backend/modules/mutator/Mutator.html" title="class in jcgp.backend.modules.mutator">Mutator</a>&nbsp;mutator)</pre>
+<div class="block">Performs the selection algorithm and uses the mutator to create
+ the next generation of solutions.</div>
+<dl>
+<dt><span class="paramLabel">Parameters:</span></dt>
+<dd><code>population</code> - the population to evolve.</dd>
+<dd><code>mutator</code> - the mutator with which to mutate the promoted individuals.</dd>
+</dl>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</div>
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