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  2010, Vol. 23 Issue (6): 815-821    DOI:
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Adaptive Neighborhood Selection Algorithm Based on Deflection Angle of Local Tangent Space
YAN De-Qin,LIU Sheng-Lan
School of Computer and Information Technology,Liaoning Normal University,Dalian 116081

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Abstract  An adaptive neighborhood selection algorithm is proposed based on deflection angle of local tangent space by using the geometric properties of local tangent space. It computes the angle between local centralized samples and its tangent space based on the orthogonal projection of local tangent space. It depicts the properties of local tangent space better, and discriminates the samples which do not belong to this neighborhood and possesses better antinoise ability. The proposed algorithm is a modification to local tangent space alignment with manifold learning function of local high curvature. Experimental results show that the proposed algorithm is effective.
Key wordsLocal Tangent Space      Deflection Angle      Orthogonal Projection      Noise     
Received: 16 September 2009     
ZTFLH: TP391  
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YAN De-Qin
LIU Sheng-Lan
Cite this article:   
YAN De-Qin,LIU Sheng-Lan. Adaptive Neighborhood Selection Algorithm Based on Deflection Angle of Local Tangent Space[J]. , 2010, 23(6): 815-821.
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http://manu46.magtech.com.cn/Jweb_prai/EN/      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2010/V23/I6/815
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