Imprecise imputation as a tool for solving classification problems with mean values of unobserved features

Authors:
Lev V. Utkin;Yulia A. Zhuk
Affiliations:
Department of Control, Automation and System Analysis, St. Petersburg State Forest Technical University, St. Petersburg, Russia;Department of Control, Automation and System Analysis, St. Petersburg State Forest Technical University, St. Petersburg, Russia
Venue:
Advances in Artificial Intelligence
Year:
2013

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Abstract

A method for solving a classification problem when there is only partial information about some features is proposed. This partial information comprises the mean values of features for every class and the bounds of the features. In order to maximally exploit the available information, a set of probability distributions is constructed such that two distributions are selected from the set which define the minimax and minimin strategies. Random values of features are generated in accordance with the selected distributions by using the Monte Carlo technique. As a result, the classification problem is reduced to the standard model which is solved by means of the support vector machine. Numerical examples illustrate the proposed method.