TY JOUR TI RANDOM SEARCH METHOD OF OPTIMIZATION AS THE WAY OF DECREASE OF TECHNOLOGICAL RISKS KW mathematical model KW goal function KW constrained optimization KW random search JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Labinsky, A.Y. AU Podruzhkina, T.A. PY 2015 IS 2015 PB Saint-Petersburg University of State Fire Service of Emercom of Russia