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Comparison of gradient descent method, Kalman filtering and decoupled Kalman in training neural networks used for fingerprint-based positioning

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4 Author(s)
Takenga, C.M. ; Inst. of Commun. Eng., Hannover Univ., Germany ; Anne, K.R. ; Kyamakya, K. ; Chedjou, J.C.

The success of neural network architectures depends heavily on the availability of effective learning algorithms. Radial basis function (RBF) neural networks provide attractive possibilities for solving signal processing and pattern classification problems. Gradient descent training (GD) of RBF networks has proven to be much more effective than more conventional methods. However, gradient descent training can be computationally expensive and its learning speed is very slow. The paper compares (GD) to methods based on either Kalman filtering (KF) or decoupled Kalman filter (DEKF). These new methods prove to be quicker than gradient descent training while still providing good performance at the same level of effectiveness when they are used in fingerprint-based positioning.

Published in:

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th  (Volume:6 )

Date of Conference:

26-29 Sept. 2004

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