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Сравнительный анализ специальных корпусов текстов для задач безопасности
The purpose of the study: development of a technique for comparing special text corpora for subsequent use in the identification of extremist texts Method: frequency methods and a specificity indicator for text analysis of the corpus platform TXM were used. Results: a methodology for comparative analysis of special text corpora has been developed, which makes it possible to identify implicit links between corpora of heterogeneous texts; the relationships between the vocabulary of illegal and literary texts were revealed; the possibility of using the specificity index to compile a “profile” of a text subcorpus was shown; comparative analysis of the corpus of extremist texts and the corpus of Russian stories of the first third of the twentieth century was made; the relationships between the vocabulary of illegal and literary texts were revealed; the possibilities of using corpus linguistics to study the properties of extremist texts in order to detect illegal Internet resources and messages were shown; the possibilities of using both morphological characteristics of words and pseudo-bases of word occurrences in the analysis of specificity on corpus data have been examined; research results showed that the frequency analysis tools provided by the TXM platform are effective for applications when it is necessary to identify implicit lexical matches between different text corpora.