Microthesaurus on technical support of AIC as an instrument of exact subject search in data flows of CSA

Issues of exact subject search of documents in the AGROS database of CSAL using thesaurus descriptors are presented. Criteria of selection, processing of terms and formation of dictionary entries of a microthesaurus on technical support of AIC are briefly described. The uniqueness of the microthesaurus as a table of compliance with other information retrieval languages and as a terminological guide of controlled scientific vocabulary on agricultural machinery is noted, as well as convenience of its use for semantic document processing.