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<div class="section" id="module-macop.algorithms.Algorithm">
<span id="macop-algorithms-algorithm"></span><h1>macop.algorithms.Algorithm<a class="headerlink" href="#module-macop.algorithms.Algorithm" title="Permalink to this headline">¶</a></h1>
<p>Abstract Algorithm class used as basic algorithm implementation with some specific initialization</p>
<p class="rubric">Classes</p>
<table class="longtable docutils align-default">
<colgroup>
<col style="width: 10%" />
<col style="width: 90%" />
</colgroup>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#macop.algorithms.Algorithm.Algorithm" title="macop.algorithms.Algorithm.Algorithm"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Algorithm</span></code></a>(initalizer, evaluator, operators, …)</p></td>
<td><p>Algorithm class used as basic algorithm</p></td>
</tr>
</tbody>
</table>
<dl class="class">
<dt id="macop.algorithms.Algorithm.Algorithm">
<em class="property">class </em><code class="sig-prename descclassname">macop.algorithms.Algorithm.</code><code class="sig-name descname">Algorithm</code><span class="sig-paren">(</span><em class="sig-param">initalizer</em>, <em class="sig-param">evaluator</em>, <em class="sig-param">operators</em>, <em class="sig-param">policy</em>, <em class="sig-param">validator</em>, <em class="sig-param">maximise=True</em>, <em class="sig-param">parent=None</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm" title="Permalink to this definition">¶</a></dt>
<dd><p>Algorithm class used as basic algorithm</p>
<p>This class enables to manage some common usages of operation research algorithms:
- initialization function of solution
- validator function to check if solution is valid or not (based on some criteria)
- evaluation function to give fitness score to a solution
- operators used in order to update solution during search process
- policy process applied when choosing next operator to apply
- callbacks function in order to do some relative stuff every number of evaluation or reload algorithm state
- parent algorithm associated to this new algorithm instance (hierarchy management)</p>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.initalizer">
<code class="sig-name descname">initalizer</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.initalizer" title="Permalink to this definition">¶</a></dt>
<dd><p>{function} – basic function strategy to initialize solution</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.evaluator">
<code class="sig-name descname">evaluator</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.evaluator" title="Permalink to this definition">¶</a></dt>
<dd><p>{function} – basic function in order to obtained fitness (mono or multiple objectives)</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.operators">
<code class="sig-name descname">operators</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.operators" title="Permalink to this definition">¶</a></dt>
<dd><p>{[Operator]} – list of operator to use when launching algorithm</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.policy">
<code class="sig-name descname">policy</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.policy" title="Permalink to this definition">¶</a></dt>
<dd><p>{Policy} – Policy class implementation strategy to select operators</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.validator">
<code class="sig-name descname">validator</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.validator" title="Permalink to this definition">¶</a></dt>
<dd><p>{function} – basic function to check if solution is valid or not under some constraints</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.maximise">
<code class="sig-name descname">maximise</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.maximise" title="Permalink to this definition">¶</a></dt>
<dd><p>{bool} – specify kind of optimisation problem</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.currentSolution">
<code class="sig-name descname">currentSolution</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.currentSolution" title="Permalink to this definition">¶</a></dt>
<dd><p>{Solution} – current solution managed for current evaluation comparison</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.bestSolution">
<code class="sig-name descname">bestSolution</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.bestSolution" title="Permalink to this definition">¶</a></dt>
<dd><p>{Solution} – best solution found so far during running algorithm</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.callbacks">
<code class="sig-name descname">callbacks</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.callbacks" title="Permalink to this definition">¶</a></dt>
<dd><p>{[Callback]} – list of Callback class implementation to do some instructions every number of evaluations and <cite>load</cite> when initializing algorithm</p>
</dd></dl>
<dl class="attribute">
<dt id="macop.algorithms.Algorithm.Algorithm.parent">
<code class="sig-name descname">parent</code><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.parent" title="Permalink to this definition">¶</a></dt>
<dd><p>{Algorithm} – parent algorithm reference in case of inner Algorithm instance (optional)</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.addCallback">
<code class="sig-name descname">addCallback</code><span class="sig-paren">(</span><em class="sig-param">_callback</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.addCallback"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.addCallback" title="Permalink to this definition">¶</a></dt>
<dd><p>Add new callback to algorithm specifying usefull parameters</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>_callback</strong> – {Callback} – specific Callback instance</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.end">
<code class="sig-name descname">end</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.end"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.end" title="Permalink to this definition">¶</a></dt>
<dd><p>Display end message into <cite>run</cite> method</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.evaluate">
<code class="sig-name descname">evaluate</code><span class="sig-paren">(</span><em class="sig-param">_solution</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.evaluate"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.evaluate" title="Permalink to this definition">¶</a></dt>
<dd><p>Evaluate a solution using evaluator passed when intialize algorithm</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>solution</strong> – {Solution} – solution to evaluate</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>fitness score of solution which is not already evaluated or changed</p>
</dd>
</dl>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>if multi-objective problem this method can be updated using array of <cite>evaluator</cite></p>
</div>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.getGlobalEvaluation">
<code class="sig-name descname">getGlobalEvaluation</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.getGlobalEvaluation"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.getGlobalEvaluation" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the global number of evaluation (if inner algorithm)</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>{int} – current global number of evaluation</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.getGlobalMaxEvaluation">
<code class="sig-name descname">getGlobalMaxEvaluation</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.getGlobalMaxEvaluation"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.getGlobalMaxEvaluation" title="Permalink to this definition">¶</a></dt>
<dd><p>Get the global max number of evaluation (if inner algorithm)</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>{int} – current global max number of evaluation</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.getParent">
<code class="sig-name descname">getParent</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.getParent"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.getParent" title="Permalink to this definition">¶</a></dt>
<dd><p>Recursively find the main parent algorithm attached of the current algorithm</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>{Algorithm} – main algorithm set for this algorithm</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.increaseEvaluation">
<code class="sig-name descname">increaseEvaluation</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.increaseEvaluation"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.increaseEvaluation" title="Permalink to this definition">¶</a></dt>
<dd><p>Increase number of evaluation once a solution is evaluated for each dependant algorithm (parents hierarchy)</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.initRun">
<code class="sig-name descname">initRun</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.initRun"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.initRun" title="Permalink to this definition">¶</a></dt>
<dd><p>Initialize the current solution and best solution using the <cite>initialiser</cite> function</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.isBetter">
<code class="sig-name descname">isBetter</code><span class="sig-paren">(</span><em class="sig-param">_solution</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.isBetter"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.isBetter" title="Permalink to this definition">¶</a></dt>
<dd><p>Check if solution is better than best found</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>solution</strong> – {Solution} – solution to compare with best one</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>{bool} – <cite>True</cite> if better</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.progress">
<code class="sig-name descname">progress</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.progress"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.progress" title="Permalink to this definition">¶</a></dt>
<dd><p>Log progress and apply callbacks if necessary</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.resume">
<code class="sig-name descname">resume</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.resume"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.resume" title="Permalink to this definition">¶</a></dt>
<dd><p>Resume algorithm using Callback instances</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.run">
<code class="sig-name descname">run</code><span class="sig-paren">(</span><em class="sig-param">_evaluations</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.run"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.run" title="Permalink to this definition">¶</a></dt>
<dd><p>Run the specific algorithm following number of evaluations to find optima</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.stop">
<code class="sig-name descname">stop</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.stop"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.stop" title="Permalink to this definition">¶</a></dt>
<dd><p>Global stopping criteria (check for parents algorithm hierarchy too)</p>
</dd></dl>
<dl class="method">
<dt id="macop.algorithms.Algorithm.Algorithm.update">
<code class="sig-name descname">update</code><span class="sig-paren">(</span><em class="sig-param">_solution</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/algorithms/Algorithm.html#Algorithm.update"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.algorithms.Algorithm.Algorithm.update" title="Permalink to this definition">¶</a></dt>
<dd><p>Apply update function to solution using specific <cite>policy</cite>
Check if solution is valid after modification and returns it</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>solution</strong> – {Solution} – solution to update using current policy</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>{Solution} – updated solution obtained by the selected operator</p>
</dd>
</dl>
</dd></dl>
</dd></dl>
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