中文摘要：

大数据分析作为整个大数据处理流程的核心,旨在从对大数据的分析中获取知识,其相关内容包括可视化分析、数据挖掘、预测分析、语义分析及数据质量管理.从大数据时代背景出发,介绍大数据分析的基础理论,阐述大数据分析相关的前沿技术和处理工具,总结当前大数据分析所面临的机遇和挑战,并就大数据分析的发展方向和未来前景进行讨论.

英文摘要：

Big data analysis aiming at knowledge discovery from the analysis of big data,which involves visualization analysis,data mining,prediction analysis,semantic analysis and data quality management,plays an essential part in the procedures of big data processing. In this paper,it introduces the basic theories,cutting-edge technologies and processing tools for big data analysis,and summarizes encountered opportunities and challenges,along with discussions about the development trend and future prospects of big data analysis.