</blockquote>
<p>A siamese network can be illustrated as follows:<br/>
<img alt="" src="https://miro.medium.com/max/700/1*0E9104t29iMBmtvq7G1G6Q.png"/><br/>
<a class="reference external" href="https://arxiv.org/abs/1707.02131">Siamese network used in Signet</a></p>
<p>There are several things to note about this diagram:</p>
<ul class="simple">
<li><p>The top and bottom blocks of the diagram share the <em>same</em> weights and parameters</p></li>
<li><p>The top and bottom blocks are called a “tower” (so 