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数据是指对客观事件进行记录并可以鉴别的符号,是对客观事物的性质、状态以及相互关系等进行记载的物理符号或是这些物理符号的组合。它不仅指狭义上的数字,还可以是具有一定意义的文字、字母、数字符号的组合、图形、图像、视频、音频等,也是客观事物的属性、数量、位置及其相互关系的抽象表示。例如,“0、1、2……”“阴、雨、下降、气温”“学生的档案记录、货物的运输情况”等都是数据。在大数据兴起之前,人类已经
Data refers to symbols that record and identify objective events and are physical symbols or combinations of physical symbols that describe the nature, status, and interrelationships of objective things. It not only refers to the number in the narrow sense, but also can be a meaningful combination of letters, numbers, symbols, graphics, images, videos, audio and so on. It is also an abstract representation of the attributes, numbers, locations and their interrelations of objective things. For example, “0,1,2 ... ” “overcast, rain, down, temperature ” “student records, the transport of goods ” and so on are all data. Before the rise of big data, humans have already