n)</span> and <span class="citation" data-cites="2019Purwins">(Purwins et al. 2019)</span>, and an interesting discussion can be read in <span class="citation" data-cites="Briot2017">(Briot et al. 2017)</span>. Of interest here is Deep Dream <span class="citation" data-cites="Mordvintsev2015">(DeepDream 2015)</span>, an image generating architecture using layer <em>activation maximization</em><a href="#fn4" class="footnote-ref" id="fnref4" role="doc-noteref"><sup>4</sup></a> of a deep pre-trained model for 