RKHS

An RKHS framework for functional data analysis Linear combinations of random variables play a crucial role in multivariate analysis. Two extension of this concept are considered for functional data and shown to coincide using the Lo`eve-Parzen reproducing kernel Hilbert space representation of a stochastic process. This theory is then used to provide an extension of the multivariate concept of canonical correlation. A solution to the regression problem of best linear unbiased prediction is obtained from this abstract canonical correlation formulation. The classical identities of Lawley and Rao that lead to canonical factor analysis are also generalized to the functional data setting. Finally, the relationship between Fisher’s linear discriminant analysis and canonical correlation analysis for random vectors is extended to include situations with function-valued random elements. This allows for classification using the canonical $Y$ scores and related distance measures.

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References in zbMATH (referenced in 1 article )

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  1. Kupresanin, Ana; Shin, Hyejin; King, David; Eubank, R.L.: An RKHS framework for functional data analysis (2010)