发明授权
- 专利标题: Neural network training by integration of adjoint systems of equations forward in time
- 专利标题(中): 及时融合方程组合的神经网络训练
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申请号: US969868申请日: 1992-10-27
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公开(公告)号: US5930781A公开(公告)日: 1999-07-27
- 发明人: Nikzad Toomarian , Jacob Barhen
- 申请人: Nikzad Toomarian , Jacob Barhen
- 申请人地址: DC Washington
- 专利权人: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人地址: DC Washington
- 主分类号: G06N3/04
- IPC分类号: G06N3/04 ; G06N3/08 ; G06F15/18
摘要:
A method and apparatus for supervised neural learning of time dependent trajectories exploits the concepts of adjoint operators to enable computation of the gradient of an objective functional with respect to the various parameters of the network architecture in a highly efficient manner. Specifically, it combines the advantage of dramatic reductions in computational complexity inherent in adjoint methods with the ability to solve two adjoint systems of equations together forward in time. Not only is a large amount of computation and storage saved, but the handling of real-time applications becomes also possible. The invention has been applied it to two examples of representative complexity which have recently been analyzed in the open literature and demonstrated that a circular trajectory can be learned in approximately 200 iterations compared to the 12000 reported in the literature. A figure eight trajectory was achieved in under 500 iterations compared to 20000 previously required. The trajectories computed using our new method are much closer to the target trajectories than was reported in previous studies.
公开/授权文献
- US6128780A Bib having an improved pocket structure 公开/授权日:2000-10-10
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