This paper obtains several sufficient conditions on the degrees for an oriented graph which contains a path or cycle of length greater than or equal to a given value.
本文对定向图中存在长不小于给定值的路和回路给出了关于次的几个充分条件。
Large networks attack can be researched base on the graph theory, because the character of its network connect and route of spread is related closely to weighted and oriented graph.
由于大规模网络入侵在网络连接上、传播路径上所体现出来的特性与图论中的赋权有向图有着共同的特性，这使得在图论的基础上进行大规模网络入侵检测的研究成为可能。
In addition, object-oriented DBMS technology is being used to deliver graph databases, which are key to managing social networks and addressing other relationship-oriented Big data problems.
此外，面向对象的DBMS技术正用于提供图形数据库，它是管理社交网络和解决其他面向关系的大数据问题的关键。
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