Neural networks following a binary approach applied to the integer prime-factorization problem. - Boris Jansen; Kenji Nakayama (IJCNN, 2005)

An Adaptive Penalty-Based Learning Extension for Backpropagation and its Variants. - Boris Jansen; Kenji Nakayama (IJCNN, 2006)

An Adaptive Penalty-Based Learning Extension for the Backpropagation Family. - Boris Jansen; Kenji Nakayama (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)