Second Order Properties of Error Surfaces: Learning Time and Generalization
Yann LeCun, Ido Kanter, Sara A. Solla · Neural Information Processing Systems · 1990
The learning time of a simple neural network model is obtained through an analytic computation of the eigenvalue spectrum for the Hessian matrix, which describes the second order properties of the cost function in the space of coupling coefficients. The form of the eigenvalue distribution suggests new techniques for accelerating the learning process, and provides a theoretical justification for the choice of centered versus biased state variables.