For the lazy:<p><a href="http:&#x2F;&#x2F;research.microsoft.com&#x2F;pubs&#x2F;255952&#x2F;ICCV15_DeepNDF_main.pdf" rel="nofollow">http:&#x2F;&#x2F;research.microsoft.com&#x2F;pubs&#x2F;255952&#x2F;ICCV15_DeepNDF_mai...</a><p>From abstract:<p><i>&quot;(...) we introduce a stochastic and
differentiable decision tree model, which steers the representation
learning usually conducted in the initial layers
of a (deep) convolutional network. (...)&quot;</i>