NPTEL | DATA MINING | WEEK-1

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NPTEL

DATA MINING

WEEK-1

    1. Which of the following is usually the last step in the data mining process?

    1. Visualization

    2. Preprocessing

    3. Modeling

    4. Deployment


    1. Sales database of items in a supermarket can be considered as an example of the:

    1. Record data

    2. Ordered data

    3. Graph data

    4. None of the above


    1. HTML links are an example of:

    1.  Record data

    2.  Ordered data

    3.  Graph data

    4.  None of the above


    1. Name of a place, can be considered an attribute of type?

    1.  Nominal

    2.  Ordinal

    3.  Interval

    4.  Ratio


    1. A store sells 10 items. Maximum possible number of candidate 3-itemsets is:

    1.  120

    2.  6

    3.  15

    4.  56


    1. If a record data matrix has a reduced a number of columns after a transformation, the transformation has performed:

    1.  Data Sampling

    2.  Dimensionality Reduction

    3.  Noise Cleaning

    4.  Discretization


    Answer Q7-Q10 based on the following table:

    1. Support of rule {4,5} ‐> {1}

    1. 1

    2. 0.5

    3. 0.25

    4. 0

    1. Confidence of rule {4,5} -> {1} is:

    1. 1

    2. 0.5

    3. 0.25

    4. 0.75

    1. Support of {1} -> {2,5} is:

    1. 2/3

    2. 2/2

    3. 1/4

    4. 3/4

    1. Confidence of {1} -> {2,5}

    1. 2/3

    2. 1

    3. 0

    4. 0.5

Updated on February 01, 2023, at 10:40 AM

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