<p>Besides the good reference provided above, there is another paper by Yann Le Cunn's group that does text classification just by encoding characters without using any external feature extraction library. It works simply by encoding at the character level. They claim 98% accuracy.</p>

<p><a href="http://arxiv.org/pdf/1502.01710v2.pdf" rel="nofollow">http://arxiv.org/pdf/1502.01710v2.pdf</a></p>
Supervised learning(document classification) using deep learning techniques
<p>I was reading the papers on deep learning. Most of them refer to unsupervised learning.</p>

<p>They also say the neurons are pre-trained using unsupervised RBM network. Later they are fine tuned using Back propagation algorithm (supervised). </p>

<p>So can we solve supervised learning problems using deep learning??</p>

<p>I am trying to find out if deep learning can be applied for document classification problem.
I know there are pretty good classifiers available. But my goal is to find out whether we can use deep learning for this purpose or not.</p>