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Principal curves with bounded turn

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2 Author(s)
Sandilya, S. ; Princeton Univ., NJ, USA ; Kulkarni, S.R.

Principal curves, like principal components, are a tool used in multivariate analysis for ends like feature extraction. Defined in their original form, principal curves need not exist for general distributions. The existence of principal curves with bounded length for any distribution that satisfies some minimal regularity conditions has been shown. We define principal curves with bounded turn, show that they exist, and present a learning algorithm for them. Principal components are a special case of such curves when the turn is zero.

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Information Theory, IEEE Transactions on  (Volume:48 ,  Issue: 10 )