NEW
Font size
WorksheetsData Mining Methodologies and Applications
Total questions: 10
Worksheet time: 5mins
Knowledge discovery from data is ____
Data analysis
Data mining
Data visualization
Data preparation
Which of the following is NOT connected to the data mining field?
Pattern recognition
High-performance computing
Personal smile
Algorithm
____ is a step-by-step method of solving a problem
Projector
Algorithm
Book
Smartphone
The row in a structured data is called ____
Attribute
Feature
Instance
Variable
Which of the following is a common task in data mining?
Classification
Jogging
Cooking
Painting
In structured data, a column is also known as ____
Tuple
Record
Attribute
Instance
Replace the missing value with the ____ if it is numeric
mean of the attribute
mode of the attribute
median of the attribute
variance of the attribute
____ is the process of combining data from different sources and formats into a unified view
Data reduction
Data integration
Data transformation
____ technique is an example of data transformation
Attribute selection
Filtering
Regression
Normalization
Which of the following best describes data cleaning?
Compressing data to save space
Removing errors and inconsistencies from data
Encrypting data for security
Drawing graphs from data
