点击次数：

发表时间：2009-01-01

发表刊物：系统工程

所属单位：经济管理学院

卷号：27

期号：10

页面范围：1-8

ISSN号：1001-4098

摘要：Emergency management has become an increasingly hot issue in relate
   research field.This paper analyzes current literature on emergency
   management from the perspective of unexpected events and event chains.We
   take a systematic theoretical viewpoint and establish a model of
   unexpected events and their structural relations.On this basis,we build
   a model describing knowledge needs in the process of emergency
   management from the point of view of the mechanism of Emergency,which
   reveals behavior patterns of event development.The evolution and
   formation of chain relationships provides a theoretical basis for
   emergency decision-making.An example is given to illustrate the
   practicality of the model,realizing the event chain's automatic
   evolution and knowledge support.

备注：新增回溯数据