ContextOptimization

<p>The ContextOptimization allows mlr3misc::Callbacks to access and modify data while optimization.
See section on active bindings for a list of modifiable objects.
See <code>callback_optimization()</code> for a list of stages which access ContextOptimization.</p>

Provides a common framework for optimization of black-box
functions for other packages, e.g. 'mlr3tuning' or 'mlr3fselect'. It
offers various optimization methods e.g. grid search, random search,
generalized simulated annealing and iterated racing.

Marc Becker

bbotk

Black-Box Optimization Toolkit

Jakob Richter

Michel Lang

Bernd Bischl

Martin Binder

Olaf Mersmann

ContextOptimization function

<p><code>mlr3misc::Context</code> -&gt; <code>ContextOptimization</code></p>

Super class

<p><div class="r6-fields"></div></p><dl>
<dt><code>instance</code></dt>
<dd><p>(OptimInstance).</p></dd><p></p><p>
<dt><code>optimizer</code></dt>
<dd><p>(Optimizer).</p></dd></p><p>
</p></dl><p></p>

Public fields

<p><div class="r6-active-bindings"></div></p><dl>
<dt><code>xdt</code></dt>
<dd><p>(<a href="https://Rdatatable.gitlab.io/data.table/reference/data.table.html">data.table::data.table</a>)<br>
The points of the latest batch.
Contains the values in the search space i.e. transformations are not yet applied.</p></dd><p></p><p>
<dt><code>result</code></dt>
<dd><p>(<a href="https://Rdatatable.gitlab.io/data.table/reference/data.table.html">data.table::data.table</a>)<br>
The result of the optimization.</p></dd></p><p>
</p></dl><p></p>

Active bindings


<div class="section" id="public-methods">
<h3>Public methods</h3><p></p><p><ul>
<li><p><a href="/link/ContextOptimization%24new()?package=bbotk&version=0.6.0" data-mini-rdoc="bbotk::ContextOptimization$new()"><code>ContextOptimization$new()</code></a></p></li>
<li><p><a href="/link/ContextOptimization%24clone()?package=bbotk&version=0.6.0" data-mini-rdoc="bbotk::ContextOptimization$clone()"><code>ContextOptimization$clone()</code></a></p></li>
</ul></p><p></p></div><p><details open><summary>Inherited methods</summary>
<ul>
<li><span class="pkg-link" data-pkg="mlr3misc" data-topic="Context" data-id="format"><a href="/link/mlr3misc%3A%3AContext%24format()?package=bbotk&version=0.6.0" data-mini-rdoc="bbotk::mlr3misc::Context$format()"><code>mlr3misc::Context$format()</code></a></span></li>
<li><span class="pkg-link" data-pkg="mlr3misc" data-topic="Context" data-id="print"><a href="/link/mlr3misc%3A%3AContext%24print()?package=bbotk&version=0.6.0" data-mini-rdoc="bbotk::mlr3misc::Context$print()"><code>mlr3misc::Context$print()</code></a></span></li>
</ul>
</details></p><p><hr>
<a id="method-ContextOptimization-new"></a></p><div class="section" id="method-new-">
<h3>Method <code>new()</code></h3>
<p>Creates a new instance of this <a href="https://r6.r-lib.org/reference/R6Class.html">R6</a> class.</p><div class="section" id="usage">
<h4>Usage</h4>
<p><div class="r"></div></p><pre><code>ContextOptimization$new(instance, optimizer)</code></pre><p></p></div><p></p>
</div><p></p><p><div class="section" id="arguments">
<h4>Arguments</h4>
<p><div class="arguments"></div></p><dl>
<dt><code>instance</code></dt>
<dd><p>(OptimInstance).</p></dd></dl></div></p><p>
<dt><code>optimizer</code></dt>
<dd><p>(Optimizer).</p></dd></p><p>
</p><p></p>
<p></p><p></p><p><hr>
<a id="method-ContextOptimization-clone"></a></p><div class="section" id="method-clone-">
<h3>Method <code>clone()</code></h3>
<p>The objects of this class are cloneable with this method.</p><div class="section" id="usage">
<h4>Usage</h4>
<p><div class="r"></div></p><pre><code>ContextOptimization$clone(deep = FALSE)</code></pre><p></p></div><p></p>
</div><p></p><p><div class="section" id="arguments">
<h4>Arguments</h4>
<p><div class="arguments"></div></p><dl>
<dt><code>deep</code></dt>
<dd><p>Whether to make a deep clone.</p></dd></dl></div></p><p>
</p><p></p>
<p></p><p>
</p>

Methods

Optimization Context — ContextOptimization

<p><div class="r6-fields"></p><dl>
<dt><code>instance</code></dt>
<dd><p>(OptimInstance).</p></dd>


<dt><code>optimizer</code></dt>
<dd><p>(Optimizer).</p></dd>


</dl><p></div></p>

<p><div class="r6-active-bindings"></p><dl>
<dt><code>xdt</code></dt>
<dd><p>(<a href='https://Rdatatable.gitlab.io/data.table/reference/data.table.html'>data.table::data.table</a>)<br />
The points of the latest batch.
Contains the values in the search space i.e. transformations are not yet applied.</p></dd>


<dt><code>result</code></dt>
<dd><p>(<a href='https://Rdatatable.gitlab.io/data.table/reference/data.table.html'>data.table::data.table</a>)<br />
The result of the optimization.</p></dd>


</dl><p></div></p>


<div class='section' id='public-methods'>
<h3>Public methods</h3>

<ul>
<li><p><a href='#method-ContextOptimization-new'><code>ContextOptimization$new()</code></a></p></li>
<li><p><a href='#method-ContextOptimization-clone'><code>ContextOptimization$clone()</code></a></p></li>
</ul>

</div><p><details open><summary>Inherited methods</summary>
<ul>
<li><span class="pkg-link" data-pkg="mlr3misc" data-topic="Context" data-id="format"><a href='../../mlr3misc/html/Context.html#method-Context-format'><code>mlr3misc::Context$format()</code></a></span></li>
<li><span class="pkg-link" data-pkg="mlr3misc" data-topic="Context" data-id="print"><a href='../../mlr3misc/html/Context.html#method-Context-print'><code>mlr3misc::Context$print()</code></a></span></li>
</ul>
</details>

<hr>
<a id="method-ContextOptimization-new"></a></p><div class='section' id='method-new-'>
<h3>Method <code>new()</code></h3>
<p>Creates a new instance of this <a href='https://r6.r-lib.org/reference/R6Class.html'>R6</a> class.</p><div class='section' id='usage'>
<h4>Usage</h4>
<p><div class="r"></p><pre><code>ContextOptimization$new(instance, optimizer)</code></pre><p></div></p>
</div>

<div class='section' id='arguments'>
<h4>Arguments</h4>
<p><div class="arguments"></p><dl>
<dt><code>instance</code></dt>
<dd><p>(OptimInstance).</p></dd>


<dt><code>optimizer</code></dt>
<dd><p>(Optimizer).</p></dd>


</dl><p></div></p>
</div>

</div><p><hr>
<a id="method-ContextOptimization-clone"></a></p><div class='section' id='method-clone-'>
<h3>Method <code>clone()</code></h3>
<p>The objects of this class are cloneable with this method.</p><div class='section' id='usage'>
<h4>Usage</h4>
<p><div class="r"></p><pre><code>ContextOptimization$clone(deep = FALSE)</code></pre><p></div></p>
</div>

<div class='section' id='arguments'>
<h4>Arguments</h4>
<p><div class="arguments"></p><dl>
<dt><code>deep</code></dt>
<dd><p>Whether to make a deep clone.</p></dd>


</dl><p></div></p>
</div>

</div>


ContextOptimization: Optimization Context

Description

Arguments

Super class

Public fields

Active bindings

Methods

Public methods

Method `new()`

Usage

Arguments

Method `clone()`

Usage

Arguments

Description

Arguments

Super class

Public fields

Active bindings

Methods

Public methods

Method new()

Usage

Arguments

Method clone()

Usage

Arguments

Method `new()`

Method `clone()`