mlr_optimizers_local_search

OptimizerBatchLocalSearch

<p>Implements a simple Local Search, see <code>local_search()</code> for details.
Currently, setting initial points is not supported.</p>

Features highly configurable search spaces via the 'paradox'
package and optimizes every user-defined objective function. The
package includes several optimization algorithms e.g. Random Search,
Iterated Racing, Bayesian Optimization (in 'mlr3mbo') and Hyperband
(in 'mlr3hyperband'). bbotk is the base package of 'mlr3tuning',
'mlr3fselect' and 'miesmuschel'.

Marc Becker

bbotk

Black-Box Optimization Toolkit

Jakob Richter

Michel Lang

Bernd Bischl

Martin Binder

Olaf Mersmann

mlr_optimizers_local_search function

<p></p><p></p><p>This Optimizer can be instantiated via the dictionary
mlr_optimizers or with the associated sugar function <code>opt()</code>:</p>
<p><div class="sourceCode"></div></p><pre><code>mlr_optimizers$get("local_search")
opt("local_search")
</code></pre><p></p>

Dictionary

<p></p><p></p><p>The same as for <code>local_search_control()</code>, with the same defaults (except for <code>minimize</code>).</p>

Parameters

<p></p><p></p><p><code>$optimize()</code> supports progress bars via the package <a href="https://CRAN.R-project.org/package=progressr"><span class="pkg">progressr</span></a>
combined with a Terminator. Simply wrap the function in
<code><a href="https://progressr.futureverse.org/reference/with_progress.html">progressr::with_progress()</a></code> to enable them. We recommend to use package
<a href="https://CRAN.R-project.org/package=progress"><span class="pkg">progress</span></a> as backend; enable with <code>progressr::handlers("progress")</code>.</p>

Progress Bars

<p><code>bbotk::Optimizer</code> -&gt; <code>bbotk::OptimizerBatch</code> -&gt; <code>OptimizerBatchLocalSearch</code></p>

Super classes


<div class="section" id="public-methods">
<h3>Public methods</h3><p></p><p><ul>
<li><p><a href="/link/OptimizerBatchLocalSearch%24new()?package=bbotk&version=1.7.0" data-mini-rdoc="bbotk::OptimizerBatchLocalSearch$new()"><code>OptimizerBatchLocalSearch$new()</code></a></p></li>
<li><p><a href="/link/OptimizerBatchLocalSearch%24clone()?package=bbotk&version=1.7.0" data-mini-rdoc="bbotk::OptimizerBatchLocalSearch$clone()"><code>OptimizerBatchLocalSearch$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="bbotk" data-topic="Optimizer" data-id="format"><a href="/link/bbotk%3A%3AOptimizer%24format()?package=bbotk&version=1.7.0" data-mini-rdoc="bbotk::bbotk::Optimizer$format()"><code>bbotk::Optimizer$format()</code></a></span></li>
<li><span class="pkg-link" data-pkg="bbotk" data-topic="Optimizer" data-id="help"><a href="/link/bbotk%3A%3AOptimizer%24help()?package=bbotk&version=1.7.0" data-mini-rdoc="bbotk::bbotk::Optimizer$help()"><code>bbotk::Optimizer$help()</code></a></span></li>
<li><span class="pkg-link" data-pkg="bbotk" data-topic="Optimizer" data-id="print"><a href="/link/bbotk%3A%3AOptimizer%24print()?package=bbotk&version=1.7.0" data-mini-rdoc="bbotk::bbotk::Optimizer$print()"><code>bbotk::Optimizer$print()</code></a></span></li>
<li><span class="pkg-link" data-pkg="bbotk" data-topic="OptimizerBatch" data-id="optimize"><a href="/link/bbotk%3A%3AOptimizerBatch%24optimize()?package=bbotk&version=1.7.0" data-mini-rdoc="bbotk::bbotk::OptimizerBatch$optimize()"><code>bbotk::OptimizerBatch$optimize()</code></a></span></li>
</ul>
</details></p><p><hr>
<a id="method-OptimizerBatchLocalSearch-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>OptimizerBatchLocalSearch$new()</code></pre><p></p></div><p></p>
</div><p></p><p>
</p><p><hr>
<a id="method-OptimizerBatchLocalSearch-clone"></a></p><div class="section" id="method-clone-">
<h3>Method <code>clone()</code></h3>
<p>The objects of this class are cloneable with this method.</p><div class="section" id="usage">
<h4>Usage</h4>
<p><div class="r"></div></p><pre><code>OptimizerBatchLocalSearch$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

Local Search — mlr_optimizers_local_search



<p>This Optimizer can be instantiated via the dictionary
mlr_optimizers or with the associated sugar function <code>opt()</code>:</p>
<p><div class="sourceCode"></p><pre><code>mlr_optimizers$get("local_search")
opt("local_search")
</code></pre><p></div></p>



<p>The same as for <code>local_search_control()</code>, with the same defaults (except for <code>minimize</code>).</p>



<p><code>$optimize()</code> supports progress bars via the package <a href='https://CRAN.R-project.org/package=progressr'><span class="pkg">progressr</span></a>
combined with a Terminator. Simply wrap the function in
<code><a href='https://progressr.futureverse.org/reference/with_progress.html'>progressr::with_progress()</a></code> to enable them. We recommend to use package
<a href='https://CRAN.R-project.org/package=progress'><span class="pkg">progress</span></a> as backend; enable with <code>progressr::handlers("progress")</code>.</p>


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

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

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

<hr>
<a id="method-OptimizerBatchLocalSearch-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>OptimizerBatchLocalSearch$new()</code></pre><p></div></p>
</div>


</div><p><hr>
<a id="method-OptimizerBatchLocalSearch-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>OptimizerBatchLocalSearch$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>


mlr_optimizers_local_search: Local Search

Description

Arguments

Dictionary

Parameters

Progress Bars

Super classes

Methods

Public methods

Method `new()`

Usage

Method `clone()`

Usage

Arguments

Description

Arguments

Dictionary

Parameters

Progress Bars

Super classes

Methods

Public methods

Method new()

Usage

Method clone()

Usage

Arguments

Method `new()`

Method `clone()`