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引言提起大数据,人们第一个反应就是数据量要大。其实,数据量多少只是大数据的一个特性,上海市科学技术委员会发布的《上海推进大数据研究与发展三年行动计划(2013—2015年)》中,认为"大数据是一个大而复杂的、难以用现有数据库管理工具处理的数据集。广义上,大数据有三层内涵:一是数据量巨大、来源多样和类型多样的数据集;二是新型的数据处理和分析技术;三是运用数据分析形成价值。大数据对科学研究、经济建设、社会发展和文化生活等各个领域
Introduction Mention big data, people first response is a large amount of data. In fact, the amount of data is only a feature of big data. The Shanghai Science and Technology Commission released the Shanghai Action Plan to Promote Big Data Research and Development (2013-2015), saying that big data is a large and complex Data sets that are difficult to process with existing database management tools.Under broad sense, big data has three layers of connotation: one is the data set with huge amount of data, diverse sources and types; the second is the new data processing and analysis technology; the third is Use data analysis to form value.Magnetic data in various fields such as scientific research, economic construction, social development and cultural life