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我国自然灾害危机管理中的科学知识传播——复杂性视野下的思考 被引量:2
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作者 梅可玉 《系统科学学报》 CSSCI 北大核心 2010年第2期75-79,共5页
本文试图就复杂性哲学、科学传播和自然灾害危机管理三者之间的内在关联展开初步阐述;从复杂性哲学的视角,结合我国目前自然灾害危机管理中科学传播存在的问题,突出强调科学传播在自然灾害危机管理中的积极作用,并给出四条初步建议。
关键词 自然灾害危机管理 复杂性 科学传播
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Investigation of a Network Failure Problem with a Significant Path, from the Perspective of Crisis Management 被引量:1
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作者 Jun-ichi Takeshita Hiroaki Mohri 《Journal of Mathematics and System Science》 2014年第7期479-485,共7页
The objective of this study is to investigate a network failure problem with a significant path, emerging from the context of crisis management, such as in the case of natural disasters. For a given tree with m failed... The objective of this study is to investigate a network failure problem with a significant path, emerging from the context of crisis management, such as in the case of natural disasters. For a given tree with m failed edges, we assume that we have sufficient resources to recover k edges of the m edges. Each node has a positive weight. In this situation, we consider which k edges should be fixed in order to maximize the sum of the weights of the nodes reachable from the significant path. In this paper, we formulate such a problem as a combinatorial problem. Further, we show that a part of our problem may be solved by translating it into the terms of the so-called tree knapsack problem. 展开更多
关键词 Network failure GRAPH tree structure combinatorial optimization risk management
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