@article{4:24,author={Pierre Baldi and Gianluca Pollastri}, Title={The Principled Design of Large-Scale Recursive Neural Network Architectures--DAG-RNNs and the Protein Structure Prediction Problem},journal={Journal of Machine Learning Research},volume={4}, url={http://www.jmlr.org/papers/volume4/castelo03a/castelo03a.pdf}}