Identifying Nonlinear Relationships in Regression using the ACE Algorithm

Duolao Wang and Michael Murphy

Journal of Applied Statistics, 2005, vol. 32, issue 3, 243-258

Abstract: This paper introduces an alternating conditional expectation (ACE) algorithm: a non-parametric approach for estimating the transformations that lead to the maximal multiple correlation of a response and a set of independent variables in regression and correlation analysis. These transformations can give the data analyst insight into the relationships between these variables so that this can be best described and non-linear relationships uncovered. Using the Bayesian information criterion (BIC), we show how to find the best closed-form approximations for the optimal ACE transformations. By means of ACE and BIC, the model fit can be considerably improved compared with the conventional linear model as demonstrated in the two simulated and two real datasets in this paper.

Keywords: Alternating Conditional Expectation (ACE) algorithm; transformation; non-parametric regression; smoothing; Bayesian Information Criterion (BIC) (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (2)

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DOI: 10.1080/02664760500054517

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