The natural gradient method has an ideal dynamic behavior which resolves the slow learning speed of the standard gradient descent method caused by plateaus. However, it is required to calculate the Fisher information matrix and its inverse, which makes the implementation of the natural gradient almost impossible. To solve this problem, a preliminary study has been proposed concerning an adaptiv...

A Note on Ending Inventory Valuation in Multiperiod Production Scheduling Wilco van den Heuvel • Albert P.M. Wagelmans Econometric Institute Report EI 2002-25 Econometric Institute, Erasmus University Rotterdam, PO Box 1738, 3000 DR Rotterdam, The Netherlands [email protected] • [email protected] June 2002 In a recent paper, Fisher et al. (2001) present a method to mitigate end-effect...

Though Fisher score is a representative and effective feature selection method, it has an unsolved drawback: it either evaluates the features individually and selects the top features, or selects features using the sequential search strategies. The individual-method ignores the mutual relationship among the selected features while the sequential-methods always suffer from heavy computation. In ...

The method of additional generating conditions is applied for finding new non-Lie ansätze and exact solutions of nonlinear generalizations of the Fisher equation.

Most slope collapse accidents are indicated by certain signs before their occurrence, and unnecessary losses can be avoided predicting deformation. However, the early warning of deformation often misjudged. It is necessary to establish a method determine appropriate in sliding thresholds. Here, better understand impact different scales on thresholds, we used Fisher optimal segmentation threshol...

In this paper, a novel discriminant analysis method for a Gabor-based image feature extraction and representation is proposed and then implemented. The horizontal and vertical two-dimensional principal component analysis (HV-2DPCA) is directly applied to a Gabor face to reduce the redundant information and preserve a bi-directional characteristic as well. It is followed by an enhanced Fisher li...

Abstract Face recognition has wide applications in security and surveillance systems as well as in robot vision and machine interfaces. Conventional challenges in face recognition include pose, illumination, and expression, and face recognition at a distance involves additional challenges because long-distance images are often degraded due to poor focusing and motion blurring. This study invest...