Abstract
Causation complexity of complex system safety accident impels human to deal with safety problem by the perspective of system science and complex science. The complex non-linear interactive action between causation factors is the main cause of the causation complexity of complex system safety accident. This paper proposes a novel technique, combining maximal entropy ordered weighted averaging (ME-OWA), decision making trial and evaluation laboratory (DEMATEL) approach and Interpretive Structural Modeling (ISM) method to analyze the accident causation of complex system. After reviewing the literature of the OWA operators and DEMATEL methodology application, offered the arithmetic steps of ME-OWA and DEMATEL. The proposed method can be used to find the accident key causation factors and analysis the hierarchical of causation network.
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