Determining the preferences of individuals is important for many scientific and practical problems, especially when modeling information control and information warfare. Previously, a model was developed that allows taking into consideration the ideological and political preferences of citizens of the Russian Federation in the three-dimensional basis derzhavnik (great power nationalist)–liberal–socialist model, as well as several methods and technologies that determine the preferences of users of the online social network VKontakte. In this paper, we propose approaches to identifying individual preferences in a stochastic preference model based on an opinion poll, which allows these preferences to be compared with the results of the analysis of an online social network.