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With the rapid development of computer, insecurity factors(such as computer virus, hacker) influences the development of MIS, safety risk evaluation has been an important task. This paper describes a risk evaluation method for MIS based on fuzzy set theory which uses linguistic variables and respective fuzzy numbers to evaluate the factors. The primary weights of factors and evaluation of alternatives...
Aimed at the problems of needing to determine the weights of index system in most comprehensive evaluation methods of risk assessment in civil aviation, and the calculation was too complicated; catastrophe evaluation method was applied to the risk assessment of SMS in civil aviation. Indicators were analyzed and sorted, and then the standard of the bottom indicators was performed. The ultimate catastrophe...
In this paper, a multi-stage stochastic programming model is constructed, for the dynamic asset allocation with the transaction cost constraints. In the mean time in order to improve the performance, the Conditional Value-at-Risk as the risk measure, which is a very important concept in the modern risk management field, is also contained. However, with the increase of the number of scenarios, the...
In order to obtain some basic data for eco-toxicological tests, acute lethal toxicities of o-nitrochlorobenzene, m-nitrochlorobenzene and 2,4-dinitrotoluene in aquatic environment to Brocarded Carp were investigated. Brocarded Carp was employed and introduced into different test solutions contained three compounds. LC50 defined within 96 h was calculated by the mortality of fish using the Karbers...
The project risk assessment is an important basis for construction enterprises to select the bidding project and make decisions during the bidding phase. In this paper, based on the thoughts of idealization and the combination of objective and subjective ideals, the project risk assessment model of Rough set-TOPSIS is proposed. Firstly, adopting Rough set theory, the objective weight of each index...
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