Problems associated with the creation of an expert knowledge base for monit
oring tasks that require operative processing of incoming data and, as a re
sult, restructuring of the knowledge base are considered. The procedures re
ducing the search for an optimal consonant state of mutually related elemen
ts of a knowledge base are proposed. An approach to the estimation of the i
nterrelations of weakly structured objects such as text documents and infor
mational messages is developed. A practical implementation of this approach
, the operating "Resonance" system, is described.