中文摘要：

大数据存储和分析的能力是未来创新型国家的核心战略能力。当前关于大数据的理论研究在共性问题提炼、方法论框架和实时数据算法理论上仍存在一些不足,从大数据＂海量、实时、多样＂三大特征出发,聚焦网络大数据这一对象,以数据复杂性的度量和约简作为主线,具体从网络链路预测及推荐、动态演化网络上的算法研究、网络小世界模型与信息传播3个问题出发,研究大数据在时间、空间和关联关系上的简约计算。

英文摘要：

The ability to store and analyze big data is a crucial capability of a powerful country in the new century.The current research of big data contains weakness on common scientific questions,general methodology,and theoretical analysis of real-time algorithm.It started from three key features about big data：volume,variety and velocity,and the measurement and simplification of time complexity,space complexity,and relationship complexity for big data were focused.