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GAUSS-NEWTON BASED LEARNING FOR FULLY RECURRENT NEURAL NETWORKS
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| Title | GAUSS-NEWTON BASED LEARNING FOR FULLY RECURRENT NEURAL NETWORKS |
| Author | Vartak, Aniket Arun
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| Keywords | Dissertations, Academic -- Engineering and Computer Science
Engineering and Computer Science -- Dissertations, Academic
Least squares minimization
RTRL
Recurrent neural networks
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| Abstract | The thesis discusses a novel off-line and on-line learning approach for Fully Recurrent Neural Networks (FRNNs). The most popular algorithm for training FRNNs, the Real Time Recurrent Learning (RTRL) algorithm, employs the gradient descent technique for finding the optimum weight vectors in the recurrent neural network. Within the framework of the research presented, a new off-line and on-line variation of RTRL is presented, that is based on the Gauss-Newton method. The method itself is an approximate Newton's method tailored to the specific optimization problem, (non-linear least squares), which aims to speed up the process of FRNN training. The new approach stands as a robust and effective compromise between the original gradient-based RTRL (low computational complexity, slow convergence) and Newton-based variants of RTRL (high computational complexity, fast convergence). By gathering information over time in order to form Gauss-Newton search vectors, the new learning algorithm, GN-RTRL, is capable of converging faster to a better quality solution than the original algorithm. Experimental results reflect these qualities of GN-RTRL, as well as the fact that GN-RTRL may have in practice lower computational cost in comparison, again, to the original RTRL. |
| Adviser | Georgiopoulos, Michael
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| Publisher | University of Central Florida |
| Degree | M.S.
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| Degree Discipline | Department of Electrical and Computer Engineering
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| Degree Grantor | Engineering and Computer Science
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| Degree Program | Electrical and Computer Engineering
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| Graduation Date | 2004-08-01 |
| Type | Master's thesis
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| Access Level | Public - Allow Worldwide Access
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| Release Date | 2004-08-01 |
| Repository | University Archives
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| Repository Collection | Electronic Theses and Dissertations
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| Identifier | CFE0000091 |
| Access Link | http://purl.fcla.edu/fcla/etd/CFE0000091 |
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