Abstract
This paper is part of the research on creating semantic analysis models in web resources for defining an extremist orientation in the text. To solve this task a model was created, which consists of five stages: identifying websites of an extremist groups, preparing for data extraction, data extraction, data analysis and classification. This work presents the results of data analysis stage of above mentioned model. The purpose of this study is to identify keywords, often used by extremists, which will later be used to classify texts to "extremist" and "neutral" categories using machine learning methods. There is no such database for the Kazakh language. As the result of this study an experimental corpus and list of keywords in Kazakh language was created. The keywords were added to the database with various morphological variants. The program was built that checks for the presence of extremist keywords in the given input text and displays the words found.