Data Mining - 2

Which is a technique that analyses a set of transactions to determine which items are purchased together frequently?

• Association rules mining
• Supervised classification
• Cluster analysis
• Web data mining

Which is used if the data is known to have a small number of classes and the classes are already known and some training data is available?

• Association rules mining
• Supervised classification
• Cluster analysis
• Web data mining

What is the main function of Search engines?

• To determine the power of association between items purchased together
• To enable users to find information of interest to them
• To find groups that are very different from each other in a collection of data
• To uncover novel patterns in the data

What is Web data mining used for?

• To determine the power of association between items purchased together
• To predict the class to which an object or individual is likely to belong
• To find groups that are very different from each other in a collection of data
• To uncover novel patterns in the data from web data

What is Cluster analysis used for?

• To determine the power of association between items purchased together
• To predict the class to which an object or individual is likely to belong
• To find groups that are very different from each other in a collection of data
• To uncover novel patterns in the data

What is the main purpose of Data warehousing and OLAP?

• To build a single version of the truth for decision makers
• To predict the class to which an object or individual is likely to belong
• To find groups that are very different from each other in a collection of data
• To test a hypothesis

Which is a decision support tool that is often built on top of a data warehouse or another database?

• Association rules mining
• Supervised classification
• OLAP tools
• Web data mining

Which technique is used to find groups that are very different from each other in a collection of data?

• Association rules mining
• Supervised classification
• Cluster analysis
• Web data mining

What is Supervised classification used for?

• To determine the power of association between items purchased together
• To predict the class to which an object or individual is likely to belong
• To find groups that are very different from each other in a collection of data
• To uncover novel patterns in the data

What is Association rules mining used for?

• To determine the power of association between items purchased together
• To predict the class to which an object or individual is likely to belong
• To find groups that are very different from each other in a collection of data
• To uncover novel patterns in the data