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Employing the Principal Hessian Direction for Building Hinging Hyperplane Models

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4 Author(s)
Anca Maria Ivanescu ; Data Manage. & Data Exploration Group, RWTH Aachen Univ., Aachen, Germany ; Thivaharan Albin ; Dirk Abel ; Thomas Seidl

In this paper we address the problem of identifying a continuous nonlinear model from a set of discrete observations. The goal is to build a compact and accurate model of an underlying process, which is interpretable by the user, and can be also used for prediction purposes. Hinging hyper plane models are well suited to represent continuous piecewise linear models, but the hinge finding algorithm is guaranteed to converge only in local optima, and hence heavily depends on the initialization. We employ the principal Hessian direction to incorporate the geometrical information of the regression surface in the hinge finding process and can thus avoid the several random initializations proposed in the literature.

Published in:

2012 IEEE 12th International Conference on Data Mining Workshops

Date of Conference:

10-10 Dec. 2012