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  <div class="section" id="module-macop.operators.policies.UCBPolicy">
<span id="macop-operators-policies-ucbpolicy"></span><h1>macop.operators.policies.UCBPolicy<a class="headerlink" href="#module-macop.operators.policies.UCBPolicy" title="Permalink to this headline">¶</a></h1>
<p>Policy class implementation which is used for selecting operator using Upper Confidence Bound</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.operators.policies.UCBPolicy.UCBPolicy" title="macop.operators.policies.UCBPolicy.UCBPolicy"><code class="xref py py-obj docutils literal notranslate"><span class="pre">UCBPolicy</span></code></a>(_operators[, _C, _exp_rate])</p></td>
<td><p>UCB policy class which is used for applying UCB strategy when selecting and applying operator</p></td>
</tr>
</tbody>
</table>
<dl class="class">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy">
<em class="property">class </em><code class="sig-prename descclassname">macop.operators.policies.UCBPolicy.</code><code class="sig-name descname">UCBPolicy</code><span class="sig-paren">(</span><em class="sig-param">_operators</em>, <em class="sig-param">_C=100.0</em>, <em class="sig-param">_exp_rate=0.5</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/operators/policies/UCBPolicy.html#UCBPolicy"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy" title="Permalink to this definition">¶</a></dt>
<dd><p>UCB policy class which is used for applying UCB strategy when selecting and applying operator</p>
<dl class="attribute">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.operators">
<code class="sig-name descname">operators</code><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.operators" title="Permalink to this definition">¶</a></dt>
<dd><p>{[Operator]} – list of selected operators for the algorithm</p>
</dd></dl>

<dl class="attribute">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.C">
<code class="sig-name descname">C</code><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.C" title="Permalink to this definition">¶</a></dt>
<dd><p>{float} – tradeoff between EvE parameter for UCB</p>
</dd></dl>

<dl class="attribute">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.exp_rate">
<code class="sig-name descname">exp_rate</code><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.exp_rate" title="Permalink to this definition">¶</a></dt>
<dd><p>{float} – exploration rate (probability to choose randomly next operator)</p>
</dd></dl>

<dl class="attribute">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.rewards">
<code class="sig-name descname">rewards</code><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.rewards" title="Permalink to this definition">¶</a></dt>
<dd><p>{[float]} – list of summed rewards obtained for each operator</p>
</dd></dl>

<dl class="attribute">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.occurrences">
<code class="sig-name descname">occurrences</code><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.occurrences" title="Permalink to this definition">¶</a></dt>
<dd><p>{[int]} – number of use (selected) of each operator</p>
</dd></dl>

<dl class="method">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.apply">
<code class="sig-name descname">apply</code><span class="sig-paren">(</span><em class="sig-param">_solution</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/operators/policies/UCBPolicy.html#UCBPolicy.apply"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.apply" title="Permalink to this definition">¶</a></dt>
<dd><p>Apply specific operator chosen to create new solution, computes its fitness and returns solution</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>_solution</strong> – {Solution} – the solution to use for generating new solution</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>{Solution} – new generated solution</p>
</dd>
</dl>
</dd></dl>

<dl class="method">
<dt id="macop.operators.policies.UCBPolicy.UCBPolicy.select">
<code class="sig-name descname">select</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="../_modules/macop/operators/policies/UCBPolicy.html#UCBPolicy.select"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#macop.operators.policies.UCBPolicy.UCBPolicy.select" title="Permalink to this definition">¶</a></dt>
<dd><p>Select randomly the next operator to use</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>the selected operator</p>
</dd>
<dt class="field-even">Return type</dt>
<dd class="field-even"><p>{Operator}</p>
</dd>
</dl>
</dd></dl>

</dd></dl>

</div>


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