The results show that the role of backward linkages of tourism in Yunnan Province are stronger than the forward linkage effects, and the internal correlation is not obvious;
2
另一种是利用能够表达交叉口转向限制和交叉口延误的存储结构——扩展的前向关联边结构，直接存储路网。
The other one is to straight store road network with the generalized forward star structure, which can represent turn restrictions and intersection delays.
3
算法采用有向图来表示攻击类别及其逻辑关系，按照前向匹配和缺项匹配的方式对报警进行关联。
In this algorithm, an extended directed graph is used to show attack types and their relations, while the correlation is performed according to the method of forwards matching and absent matching.
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