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KEHUI CHEN, University of California, Davis

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Conditional Distribution Modeling and Stringing For Functional Data
20 February 2012 from 4:00 PM to 5:00 PM
201 Thomas Bldg.
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In this talk, I will first present a method for conditional distribution estimation when predictors take values in a functional space, which is an extension of the usual functional mean regression. The study is motivated and illustrated by an application to the assessment of children’s growth patterns. The proposed method is supported by theory and is shown to perform well in simulations. An extension of the proposed conditional approach to model the more complex case when responses are also functions will be briefly discussed. In the second part, I will adopt a broader perspective, and demonstrate how the ‘blessings of dimensionality’ principle motivates the `Stringing’ method. In this approach, we represent high-dimensional data as discretized, noisy, and order-scrambled observations from a hidden random function. Simulations show that this method works well in various high-dimensional settings.

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