但是在这个庞大的网络系统中，如何快速高效地提取自己感兴趣的知识成为人们关注的热点和焦点。
But how to get the knowledge that people need eagerly in the huge network world becomes the focus and hotpot of study.
科学引文网络反映了科学知识的动态演化，作为一个复杂的网络系统已得到广泛研究。
Exhibiting the dynamic evolution of scientific knowledge, the citation network has been studied extensively as a complex network system.
科学引文网络反映了科学知识的动态演化，作为一个复杂的网络系统已得到广泛研究。
Exhibiting the dynamic evolution of scientific knowledge, the citation network has been studied extensively as a complex network system.
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