Специфіка застосування методу дерев рішень в аналізі масиву даних на прикладі порівняльного дослідження

Abstract

The article tries to prove heuristic potential of the Decision Tree Method in analyzing data of the comparative sociologic research “The Ukrainians and Russians: Looking at Each Other”, which was done on the initiative of the Institute of Russian Studies, in Russia by the company GfK RUS from June 27 until July 11, 2008, in Ukraine — by the company GfK Ukraine from June 19 until July 7, 2008. The main task of the Decision Tree is to display and visualize a covered categorical data structure, as if it were peculiar to them, to analytical separation of empirical data by statistical methods. By the use of the Decision Tree Method the authors have succeeded to build portraits of the respondents and discover from the structure of massifs the most dependent variables. Thus the authors conclude that in Ukraine regional and socio-cultural factors are the most important determinant when evaluating relations with Russia and in Russia socio-demographical characteristics of respondents are more significant.