Аннотация:The paper presents the approach to the description of the broad domain of national security as a thesaurus for automatic document processing. The created Security thesaurus has the representation model of the RuThes thesaurus.The Security thesaurus includes terminology related to social, national and religious conflicts, extremism and terrorism, information security. It is used in a specialized information-analytical system and for automatic text categorization according to several categorization schemes. The information-retrieval system provides several search instruments including word, phrase and concept search, category and facet search. It also supports the creation of analytical reports.
