Generally, data mining (sometimes called data or knowledge discovery) is the process of analyzing data from different perspectives and (1) it into useful information information that can be used to increase revenue, (2) costs, or both. Data mining software is one of a number of analytical tools for analyzing data. It (3) users to analyze data from many different dimensions or angles, categorize it, and summarize the relationships identified. Technically, data mining is the process of finding correlations or patterns among dozens of fields in large relational databases.
Although data mining is a (4) new term, the technology is not. Companies have used powerful computers to sift through volumes of supermarket scanner data and analyze market research reports for years. However, continuous innovations in computer processing power, disk storage, and statistical software are dramatically increasing the accuracy of analysis while driving (5) the cost.
A.organizing
B.summarizing
C.composing
D.constituting
第1题:
若要对Date类中重载的加法运算符成员函数进行声明,下列选项中正确的是( )。
A.Data+(Data);
B.Dataoperator+(Data);
C.Data+operator(Data);
D.operator+(Data.Data);
第2题:

第3题:
下列选项中,用于存储数据库文件的路径是()。
A.【data】->【databases】
B.【data】->【data】
C.【data】->【data】->【项目包名全路径】->【databases】
D.【data】->【data】->【项目包名全路径】
第4题:
在有13个元素构成的有序表data[1..13]中,用折半查找(即二分查找,计算时向下取整)方式查找值等于data[8]的元素时,先后与(41)等元素进行了比较。
A.data[7]. data[6]. data[8]
B.data[7]. Data[8]
C.data[7]. data[10]. data[8]
D.data[7]. data[10]、data[9]. data[8]
第5题:
将数据库导入R语言后,可用()显示数据库结构,用()查看数据库行列数,用()查看每个变量的基本统计值。
A.str(data) summary(data) dim(data)
B.str(data) dim(data) summary(data)
C.dim(data) summary(data) str(data)
D.summary(data) dim(data) str(data)
第6题:
下列选项中,用于存储数据库文件的路径是()。
A.【data】->【databases】
B.【data】->【data】
C.【data】->【data】->【项目包名全路径】->【databases】
D.data】->【data】->【项目包名全路径】