Data Mining Week 1 Nptel Assignment Answers
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Data Mining Week 1 Nptel Assignment Answers (Jan-Apr 2025)
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- Data mining is the process of finding valid, novel, useful, and _______________ patterns in large volumes of data. Which of the following terms best fills the gap above?
a. Voluminous
b. Heterogeneous
c. Actionable
d. Noisy
- Which of the following is usually the last step in the data mining process?
a. Visualization
b. Preprocessing
c. Modeling
d. Deployment
- Name of a movie can be considered as an attribute of type?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
- User rating given to a movie on a scale of 1-10 can be considered as an attribute of type?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
- Which of the following operations cannot be performed on interval attributes?
a. Distinctness
b. Order
c. Addition
d. Multiplication
- Which of the following operations can be performed on ratio attributes?
a. Addition
b. Multiplication
c. Both of the above
d. None of the above
- Sales database of items in a supermarket can be considered as an example of:
a. Record data
b. Tree data
c. Graph data
d. None of the above
- Rows of a data matrix storing record data usually represent?
a. Metadata
b. Objects
c. Attributes
d. Aggregates
- Which of the following is an example of a continuous attribute?
a. Weight of a person
b. Shoe size of a person
c. Gender of a person
d. None of the above
- If a record data matrix has a reduced number of columns after a transformation, the transformation has performed:
a. Data sampling
b. Dimensionality reduction
c. Noise cleaning
d. Discretization
- If a record data matrix has a reduced number of rows after a transformation, the transformation has performed:
a. Data sampling
b. Dimensionality reduction
c. Noise cleaning
d. Discretization
Data Mining Week 1 Nptel Assignment Answers
For answers to others Nptel courses, please refer to this link: NPTEL Assignment
