Fig. 1From: Unsupervised deep learning reveals prognostically relevant subtypes of glioblastomaInferring the activation states of signaling pathways with deep learning. (a) Example EGFR signaling cascade. (b) A microarray representing gene expression values. (c) Representation of a DBN (fine-tuning encoder network only) trained on gene expression values. Hypothesized biological entities whose activation states may be represented by units in the 1st, 2nd, and 3rd hidden layers are displayed on the right Back to article page