Methods of variable pre-selection for net score modeling
Journal of Research in Interactive Marketing
ISSN: 2040-7122
Article publication date: 14 October 2013
Abstract
Purpose
This paper aims to focus on different approaches to variable pre-selection for building net score models (also known as uplift modelling or incremental response modelling). The application of these models supports the identification of customers whose response can be traced back to be an effect of the campaign under consideration.
Design/methodology/approach
First, a net scoring methodology based on decision trees is presented. Then, derived from research contributions on this subject and analytics performed on real data from the financial sector, different approaches of variable pre-selection are discussed and compared numerically.
Findings
Net-χ2 and net information value as well as the rank lift impact correlation for interval variables would be preferred when performing variable pre-selection for net score models. Simulations showed that the results were relatively stable with respect to the number of cross-validation samples.
Practical implications
Variable pre-selection is required since it reduces computational effort that comes along with the complexity of net score models and the availability of a large amount of potential predictors. Some pre-selection methods result in a set of predictors quite close to the application of net scores itself.
Originality/value
Despite its lever on the effectiveness of marketing campaigns, only few contributions address net scores up to now and yet fewer authors deal with variable pre-selection for those models. In this regard, this article is the first to develop and compare different approaches.
Keywords
Citation
Michel, R., Schnakenburg, I. and von Martens, T. (2013), "Methods of variable pre-selection for net score modeling", Journal of Research in Interactive Marketing, Vol. 7 No. 4, pp. 257-268. https://doi.org/10.1108/JRIM-03-2013-0017
Publisher
:Emerald Group Publishing Limited
Copyright © 2013, Emerald Group Publishing Limited