[1]WEN Gui-hua,J IANG L i-jun,WEN Jun.Using locally estimated geodesic distances to improve Hessian local linear embedding[J].CAAI Transactions on Intelligent Systems,2008,3(5):429-435.
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
3
Number of periods:
2008 5
Page number:
429-435
Column:
学术论文—人工智能基础
Public date:
2008-10-25
- Title:
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Using locally estimated geodesic distances to improve Hessian local linear embedding
- Author(s):
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WEN Gui-hua1 ; J IANG L i-jun2 ; WEN Jun3
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1. School of Computer Science and Engineering, South China University of Technology, Guangzhou 510641, China;
2. Department of ElectronicMaterial Science and Engineering, South China University of Technology, Gunagzhou 510641, China;
?3. School ofMathe2 matical Science, Hubei Insitute forNationalities, Enshi 445000, China
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- Keywords:
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manifold learning; Hessian transformation; locally linear embedding; geodesic distance
- CLC:
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TP391
- DOI:
-
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- Abstract:
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To dealwith highly curved data manifolds, the Hessian locally linear embedding (HLLE) algorithm was modified based on a locally estimated geodesic distance. It used the general concep tual framework of HLLE to guar2 antee correct setting of local isometry to an open connected subset. It emp loys the locally estimated geodesic dis2 tance instead of the Euclidean distance to determine the neighborhood of any point, so that it reduces the distorting influence of curvature of the data manifold on determining the neighborhood. This app roach can be regarded as the integration of a localmethod and a globalmethod, so that it has better performance and stability than HLLE, with only a slight increase in computational time. Experiments conducted on benchmark data sets verified etficioncy of the p roposed app roach.