“…However, big quantities of textual information require preprocessing at the stage of syntactic parsing, conceptual meaning of the phrase, semantic evaluation of the information, aggregation of the query terms and the form of its representation. There are also many tools for text processing in information retrieval [3], [4], [5] extraction [6], [7], texts summarizing [8], [9], knowledge discovery [10], similarity evaluation of the texts [11], categorization [12] and machine translation [13]. They all stimulate the need for more precise and general solutions when the tools have some technical limitations.…”