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<dt class="sig sig-object py" id="mlx.nn.MaxPool2d">
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<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">MaxPool2d</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">kernel_size</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.Tuple" title="(in Python v3.13)"><span class="pre">Tuple</span></a><span class="p"><span class="pre">[</span></span><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="p"><span class="pre">]</span></span></span></em>, <em class="sig-param"><span class="n"><span class="pre">stride</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.Tuple" title="(in Python v3.13)"><span class="pre">Tuple</span></a><span class="p"><span class="pre">[</span></span><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="p"><span class="pre">]</span></span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.13)"><span class="pre">None</span></a></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">padding</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.Tuple" title="(in Python v3.13)"><span class="pre">Tuple</span></a><span class="p"><span class="pre">[</span></span><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a><span class="p"><span class="pre">]</span></span><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.13)"><span class="pre">None</span></a></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">0</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#mlx.nn.MaxPool2d" title="Link to this definition">#</a></dt>
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<dd><p>Applies 2-dimensional max pooling.</p>
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<p>Assuming an input of shape <span class="math notranslate nohighlight">\((N, H, W, C)\)</span> and <code class="docutils literal notranslate"><span class="pre">kernel_size</span></code> is
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<span class="math notranslate nohighlight">\((k_H, k_W)\)</span>, the output is a tensor of shape <span class="math notranslate nohighlight">\((N, H_{out},
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W_{out}, C)\)</span>, given by:</p>
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<div class="math notranslate nohighlight">
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\[\begin{split}\begin{aligned}
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\text{out}(N_i, h, w, C_j) = & \max_{m=0, \ldots, k_H-1} \max_{n=0, \ldots, k_W-1} \\
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& \text{input}(N_i, \text{stride[0]} \times h + m,
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\text{stride[1]} \times w + n, C_j),
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\end{aligned}\end{split}\]</div>
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<p>where <span class="math notranslate nohighlight">\(H_{out} = \left\lfloor\frac{H + 2 * \text{padding[0]} - \text{kernel\_size[0]}}{\text{stride[0]}}\right\rfloor + 1\)</span>,
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<span class="math notranslate nohighlight">\(W_{out} = \left\lfloor\frac{W + 2 * \text{padding[1]} - \text{kernel\_size[1]}}{\text{stride[1]}}\right\rfloor + 1\)</span>.</p>
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<p>The parameters <code class="docutils literal notranslate"><span class="pre">kernel_size</span></code>, <code class="docutils literal notranslate"><span class="pre">stride</span></code>, <code class="docutils literal notranslate"><span class="pre">padding</span></code>, can either be:</p>
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<blockquote>
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<div><ul class="simple">
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<p>Spatially downsamples the input by taking the maximum of a sliding window
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of size <code class="docutils literal notranslate"><span class="pre">kernel_size</span></code> and sliding stride <code class="docutils literal notranslate"><span class="pre">stride</span></code>.</p>
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<p>The parameters <code class="docutils literal notranslate"><span class="pre">kernel_size</span></code>, <code class="docutils literal notranslate"><span class="pre">stride</span></code>, and <code class="docutils literal notranslate"><span class="pre">padding</span></code> can either be:</p>
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<ul class="simple">
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<li><p>a single <code class="docutils literal notranslate"><span class="pre">int</span></code> – in which case the same value is used for both the
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height and width axis;</p></li>
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height and width axis.</p></li>
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<li><p>a <code class="docutils literal notranslate"><span class="pre">tuple</span></code> of two <code class="docutils literal notranslate"><span class="pre">int</span></code> s – in which case, the first <code class="docutils literal notranslate"><span class="pre">int</span></code> is
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used for the height axis, the second <code class="docutils literal notranslate"><span class="pre">int</span></code> for the width axis.</p></li>
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</ul>
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</div></blockquote>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters<span class="colon">:</span></dt>
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<dd class="field-odd"><ul class="simple">
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@@ -939,11 +928,11 @@ of the height and width axis. Default: <code class="docutils literal notranslate
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