<p>We already have a thread on <a href="https://stats.meta.stackexchange.com/questions/1200/current-tag-synonym-candidates">tag synonyms</a> and <a href="https://stats.meta.stackexchange.com/questions/4525/the-learning-tags">merging the *-learning tags</a>, but since deep learning is currently a hot topic, it probably would be better to discuss it separately.</p>

<p>Should we make <a href="https://stats.stackexchange.com/questions/tagged/deep-learning" class="post-tag" title="show questions tagged &#39;deep-learning&#39;" rel="tag">deep-learning</a> (2,136 questions) a synonym of <a href="https://stats.stackexchange.com/questions/tagged/neural-networks" class="post-tag" title="show questions tagged &#39;neural-networks&#39;" rel="tag">neural-networks</a> (4,304 questions)?</p>

<p>Currently people seem to be using "deep learning" to mean neural networks, as "shallow" networks are rarely used. I personally don't find any good reason why keeping two separate tags would have any merits, but I may be wrong.</p>
