Hadoop 是一个实现了 MapReduce 计算模型的开源分布式并行编程框架，借助于 Hadoop, 程序员可以轻松地编写分布式并行程序，将其运行于计算机集群上，完成海量数据的计算。-Hadoop is an implementation of the MapReduce computation model of the open-source framework for distributed parallel programming, through the use of Hadoop,

Ambient演算的一种分层语义，网络计算系统中涉及的操作复杂，很难直接给出一种的语义描述框架．作为一种网络计算模型，Ambient演算主要刻画了计算的分布性和移动性．-Since computation under network involves variants，complicated information and behaviors，it is difficult to give denotational semantic descr iption for computing unde

用于计算网络各种拓扑指标,对复杂网络计算用很大帮助-Used to calculate the network all kinds of topological index，With the great help for computation of complex networks