超星Quantitative Information Analysis期末答案(学习通2023题目答案)

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超星Quantitative Information Analysis期末答案(学习通2023题目答案)

Chapter 1. Introduction to QIA

1.1 What is 超星QIA?随堂测验

1、1. Information analytics include:
A、末答Data organization
B、案学Data interpretation
C、习通Data visualization
D、题目All of above.

2、答案2. Which one of the following categories does the age of a student (e.g.,超星 19) belong to?
A、Nominal
B、末答Ordinal
C、案学Interval
D、习通Ratio

3、题目3. Which one of the following categories does the gender of a student (e.g.,答案 female) belong to?
A、Nominal
B、超星Ordinal
C、末答Interval
D、案学Ratio

4、4. Which one of the following categories does the average score of a course (e.g., 85.2) belong to?
A、Nominal
B、Ordinal
C、Interval
D、Ratio

5、5. Which one of the following categories does the ranking of a student's score (e.g., 2) belong to?
A、Nominal
B、Ordinal
C、Interval
D、Ratio

1.2 Software used for QIA随堂测验

1、1. What is the ultimate purpose of data analysis?
A、To build a model to perform simulation
B、To gain insights and help with decision making
C、To make a descriptive analysis and visualize the data
D、To build a model to perform simulation

2、2. When optimizing a model, we should always consider a trade-off between model interpretation and model accuracy.

3、3. We will use Python, R and ____ in this class.

4、4. The stages of data analytics usually include feature selection, modeling and testing, model evaluation and .

Assignment

1、Data is everywhere. It is the abstract of the number, feature, location or relationship of the objective things, and is also the fact about the world. Information is meaningful and logical data flow, which is valuable for decision-making. Would you please use an example of your own to illustrate the difference between data and information?

Chapter 2. QIA methods: Indicators and measurements

2.1 Collaboration indices I随堂测验

1、1. Which of the following terminology is the same as reproducibility
A、Validity
B、Fair
C、Useful
D、Reliability

2、2. Normalization with z-value can be used for
A、Normally distributed data
B、Symmetric but not normally distributed data
C、Uniformly distributed data
D、Exponentially distributed data

3、3. An indicator is a mathematical expression that can be applied to ________ data.

2.2 Collaboration indices II随堂测验

1、1. Which of the following indices can represent the degree of collaboration
A、
B、
C、
D、

2、2. According to this figure, we can argue that collaboration enhances productivity.

2.3 The h-index I随堂测验

1、1. The first h articles ranked by the citation counts in descending order form the h-core, then h-tail is
A、all the other articles outside the h-core
B、the last h articles by the same ranking
C、randomly picked h articles
D、another h articles right following the h-core by the order

2、Read the following table and answer questions 2-4 2. The h index of this author is .
A、4
B、5
C、6
D、7

3、3. The h-core consists publication
A、A, B, C
B、A, B, C, D
C、A, B, C, D, E
D、A, B, C, D, E, F

4、4. The extended h-core including publications
A、A, B, C
B、A, B, C, D
C、A, B, C, D, E
D、A, B, C, D, E, F

2.4 The h-index II随堂测验

1、1. Which of the following characteristics of the h-index is not correct
A、Simple
B、Relatively stable
C、Independent of productivity
D、Time-dependent

2、2. Which of the following has no chances to affect the value of the h-index?
A、Increasing the number of publications alone
B、Increasing the number of co-authors
C、Calculation errors
D、Increasing the number of citations

3、3. Does the h-index measure how GOOD a scientist is?

4、4. One potential flaw of the h-index is that publications and citations are not _____ on each other.