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git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@497 331e1502-861f-0410-8da2-ba01fb791d7f
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<h1>moeoCrowdingDiversityAssignment.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-</span>
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<a name="l00002"></a>00002
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<a name="l00003"></a>00003 <span class="comment">//-----------------------------------------------------------------------------</span>
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<a name="l00004"></a>00004 <span class="comment">// moeoCrowdingDiversityAssignment.h</span>
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<a name="l00005"></a>00005 <span class="comment">// (c) OPAC Team (LIFL), Dolphin Project (INRIA), 2007</span>
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<a name="l00006"></a>00006 <span class="comment">/*</span>
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<a name="l00007"></a>00007 <span class="comment"> This library...</span>
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<a name="l00008"></a>00008 <span class="comment"></span>
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<a name="l00009"></a>00009 <span class="comment"> Contact: paradiseo-help@lists.gforge.inria.fr, http://paradiseo.gforge.inria.fr</span>
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<a name="l00010"></a>00010 <span class="comment"> */</span>
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<a name="l00011"></a>00011 <span class="comment">//-----------------------------------------------------------------------------</span>
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<a name="l00012"></a>00012
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<a name="l00013"></a>00013 <span class="preprocessor">#ifndef MOEOCROWDINGDIVERSITYASSIGNMENT_H_</span>
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<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define MOEOCROWDINGDIVERSITYASSIGNMENT_H_</span>
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<a name="l00015"></a>00015 <span class="preprocessor"></span>
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<a name="l00016"></a>00016 <span class="preprocessor">#include <eoPop.h></span>
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<a name="l00017"></a>00017 <span class="preprocessor">#include <comparator/moeoOneObjectiveComparator.h></span>
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<a name="l00018"></a>00018 <span class="preprocessor">#include <diversity/moeoDiversityAssignment.h></span>
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<a name="l00019"></a>00019
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<a name="l00024"></a>00024 <span class="keyword">template</span> < <span class="keyword">class</span> MOEOT >
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<a name="l00025"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html">00025</a> <span class="keyword">class </span><a class="code" href="classmoeoCrowdingDiversityAssignment.html">moeoCrowdingDiversityAssignment</a> : <span class="keyword">public</span> <a class="code" href="classmoeoDiversityAssignment.html">moeoDiversityAssignment</a> < MOEOT >
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<a name="l00026"></a>00026 {
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<a name="l00027"></a>00027 <span class="keyword">public</span>:
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<a name="l00028"></a>00028
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<a name="l00030"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html#e6ece5e7569e9d168fcddaae37902585">00030</a> <span class="keyword">typedef</span> <span class="keyword">typename</span> MOEOT::ObjectiveVector <a class="code" href="classmoeoCrowdingDiversityAssignment.html#e6ece5e7569e9d168fcddaae37902585">ObjectiveVector</a>;
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<a name="l00031"></a>00031
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<a name="l00032"></a>00032
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<a name="l00036"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html#e7f5dbe11427a5c264e70fe4e036242f">00036</a> <span class="keywordtype">double</span> <a class="code" href="classmoeoCrowdingDiversityAssignment.html#e7f5dbe11427a5c264e70fe4e036242f">inf</a>()<span class="keyword"> const</span>
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<a name="l00037"></a>00037 <span class="keyword"> </span>{
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<a name="l00038"></a>00038 <span class="keywordflow">return</span> std::numeric_limits<double>::max();
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<a name="l00039"></a>00039 }
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<a name="l00040"></a>00040
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<a name="l00041"></a>00041
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<a name="l00045"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html#eb70be9c246dfa56b55a4ecc5454f778">00045</a> <span class="keywordtype">double</span> <a class="code" href="classmoeoCrowdingDiversityAssignment.html#eb70be9c246dfa56b55a4ecc5454f778">tiny</a>()<span class="keyword"> const</span>
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<a name="l00046"></a>00046 <span class="keyword"> </span>{
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<a name="l00047"></a>00047 <span class="keywordflow">return</span> 1e-6;
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<a name="l00048"></a>00048 }
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<a name="l00049"></a>00049
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<a name="l00050"></a>00050
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<a name="l00055"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html#1db056d5e06b337e67f848fdb60fa2a6">00055</a> <span class="keywordtype">void</span> <a class="code" href="classmoeoCrowdingDiversityAssignment.html#1db056d5e06b337e67f848fdb60fa2a6">operator()</a>(eoPop < MOEOT > & _pop)
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<a name="l00056"></a>00056 {
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<a name="l00057"></a>00057 <span class="keywordflow">if</span> (_pop.size() <= 2)
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<a name="l00058"></a>00058 {
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<a name="l00059"></a>00059 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<_pop.size(); i++)
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<a name="l00060"></a>00060 {
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<a name="l00061"></a>00061 _pop[i].diversity(<a class="code" href="classmoeoCrowdingDiversityAssignment.html#e7f5dbe11427a5c264e70fe4e036242f">inf</a>());
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<a name="l00062"></a>00062 }
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<a name="l00063"></a>00063 }
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<a name="l00064"></a>00064 <span class="keywordflow">else</span>
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<a name="l00065"></a>00065 {
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<a name="l00066"></a>00066 <a class="code" href="classmoeoCrowdingDiversityAssignment.html#acbe3e03404ecc67dd5e83f00576c255">setDistances</a>(_pop);
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<a name="l00067"></a>00067 }
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<a name="l00068"></a>00068 }
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<a name="l00069"></a>00069
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<a name="l00070"></a>00070
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<a name="l00078"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html#ba1d60c8e59fbe2c12e9eef33863f012">00078</a> <span class="keywordtype">void</span> <a class="code" href="classmoeoCrowdingDiversityAssignment.html#ba1d60c8e59fbe2c12e9eef33863f012">updateByDeleting</a>(eoPop < MOEOT > & _pop, <a class="code" href="classmoeoCrowdingDiversityAssignment.html#e6ece5e7569e9d168fcddaae37902585">ObjectiveVector</a> & _objVec)
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<a name="l00079"></a>00079 {
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<a name="l00080"></a>00080 std::cout << <span class="stringliteral">"WARNING : updateByDeleting not implemented in moeoCrowdingDiversityAssignment"</span> << std::endl;
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<a name="l00081"></a>00081 }
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<a name="l00082"></a>00082
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<a name="l00083"></a>00083
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<a name="l00084"></a>00084 <span class="keyword">protected</span>:
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<a name="l00085"></a>00085
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<a name="l00090"></a><a class="code" href="classmoeoCrowdingDiversityAssignment.html#acbe3e03404ecc67dd5e83f00576c255">00090</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classmoeoCrowdingDiversityAssignment.html#acbe3e03404ecc67dd5e83f00576c255">setDistances</a> (eoPop < MOEOT > & _pop)
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<a name="l00091"></a>00091 {
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<a name="l00092"></a>00092 <span class="keywordtype">double</span> min, max, distance;
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<a name="l00093"></a>00093 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nObjectives = MOEOT::ObjectiveVector::nObjectives();
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<a name="l00094"></a>00094 <span class="comment">// set diversity to 0</span>
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<a name="l00095"></a>00095 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<_pop.size(); i++)
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<a name="l00096"></a>00096 {
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<a name="l00097"></a>00097 _pop[i].diversity(0);
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<a name="l00098"></a>00098 }
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<a name="l00099"></a>00099 <span class="comment">// for each objective</span>
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<a name="l00100"></a>00100 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> obj=0; obj<nObjectives; obj++)
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<a name="l00101"></a>00101 {
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<a name="l00102"></a>00102 <span class="comment">// comparator</span>
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<a name="l00103"></a>00103 moeoOneObjectiveComparator < MOEOT > objComp(obj);
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<a name="l00104"></a>00104 <span class="comment">// sort</span>
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<a name="l00105"></a>00105 std::sort(_pop.begin(), _pop.end(), objComp);
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<a name="l00106"></a>00106 <span class="comment">// min & max</span>
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<a name="l00107"></a>00107 min = _pop[0].objectiveVector()[obj];
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<a name="l00108"></a>00108 max = _pop[_pop.size()-1].objectiveVector()[obj];
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<a name="l00109"></a>00109 <span class="comment">// set the diversity value to infiny for min and max</span>
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<a name="l00110"></a>00110 _pop[0].diversity(<a class="code" href="classmoeoCrowdingDiversityAssignment.html#e7f5dbe11427a5c264e70fe4e036242f">inf</a>());
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<a name="l00111"></a>00111 _pop[_pop.size()-1].diversity(<a class="code" href="classmoeoCrowdingDiversityAssignment.html#e7f5dbe11427a5c264e70fe4e036242f">inf</a>());
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<a name="l00112"></a>00112 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=1; i<_pop.size()-1; i++)
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<a name="l00113"></a>00113 {
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<a name="l00114"></a>00114 distance = (_pop[i+1].objectiveVector()[obj] - _pop[i-1].objectiveVector()[obj]) / (max-min);
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<a name="l00115"></a>00115 _pop[i].diversity(_pop[i].diversity() + distance);
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<a name="l00116"></a>00116 }
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<a name="l00117"></a>00117 }
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<a name="l00118"></a>00118 }
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<a name="l00119"></a>00119
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<a name="l00120"></a>00120 };
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<a name="l00121"></a>00121
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<a name="l00122"></a>00122 <span class="preprocessor">#endif </span><span class="comment">/*MOEOCROWDINGDIVERSITYASSIGNMENT_H_*/</span>
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</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Jul 2 16:05:01 2007 for ParadisEO-MOEO by
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
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