Data mining 150 questions measured your professional ability to pass it?

Professional ability

chengxuyuan· 2016-05-31 21:30:22

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1, a supermarket sales record of research data found that people buy the beer will be a great probability to buy diapers, what kind of problem that belongs to the data mining? (A)

B.

C.

D. Natural Language Processing


2, the following two kinds of description corresponding to which of the two kinds of evaluation of classification the algorithm? (A)

(a) the police catch the thief, the police arrested the man in the description how much is the thief's standard.

(b) to describe what proportion of the thief to the police caught the standard.


A. Precision," Recall

B. Recall, Precision

C. Precision, ROC

D. Recall, ROC


3, the original data integration, transformation, reduction, numerical specification in dimensions which of the following steps of the task? (C)

B.

C. data preprocessing Style= max-width: 100% min-height: 1em; white-space:; normal; color: RGB (62, 62, 62); line-height: 25.6px; box-sizing: important; word-wrap: border-box! Break-word! Important; background-color: RGB (255, 255, 255); "> D.


4, do not know when the data with labels when can be separated using what technology with similar data and prompted the label with other tag data? (B)

A. style=" classification of

B.

C.

D. hidden Markov chain


5, what is KDD? (A)

A.

B. style= "field of knowledge discovery

C. document knowledge General

D. style= "dynamic knowledge discovery


6, interactive and visualization the technology, to explore what kind of task belongs to data mining on data? (A)

A.

B.

C. forecast model

D. find the patterns and the rules for" max-width: 100%


7, for the modeling of overall distribution data; to what kind of tasks are divided into groups of multi-dimensional spatial data mining is? (B)

A.

B.

C.

D.


8, establish a model, through this according to the known model variable values to predict some other variables which belongs to data mining tasks? (C)

A.

B.

C.

D. to find the patterns and the rules for


9, users have an interest and hope in the dataset to find a similar pattern, which belongs to the data mining task? (A)

A.

B.

C.

D. to find the patterns and the rules for


11, which does not belong to the method of data pretreatment? (D)

A

B style=" discrete

C style=" aggregation of

D


12, assuming the 12 record price group is already sorted as follows: 5, 10, 11, 13 15,35, 50, 55, 72, 92, 204, 215 are using each method to divide them into four boxes. Equal frequency (equal depth) division, 15 in the first few boxes inside? (B)

A style=" first

B second

C" max-width: 100% style= third

D fourth


13, title, width division (width 50), in which case 15? (A)

A style=" first

B second

C" max-width: 100% style= third

D fourth


14, which of the following does not belong to the data: (D)

A style= "nominal

B Number of

C" max-width: 100% style= interval

D


15, in the title, property type belongs to quantitative is: (C)

A

B

C style= max-width: 100%

D


16, only two yuan of property is called a nonzero value is important: (C)

A

B

C asymmetric two yuan property

D

17, the following methods

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