Data Mining

Data mining should have been more appropriately named as

• data dredging

• knowledge mining from data

• knowledge extraction

• data/pattern analysis

• data archaeology

Examples of time-related or sequence data are

• historical records, stock exchange data, and time-series ,biological sequence data

• video surveillance, sensor data

• the design of buildings, system components, or integrated circuits

• text, image, video, audio data

• None of the above

What are the functions of Data Mining?

• 1. Prediction and characterization

• 1. Association and correctional analysis classification

• 1. Cluster analysis and Evolution analysis

• 1. All of the above

Which of the following is an essential process in which the intelligent methods are applied to extract data patterns?

• 1. Warehousing

• 1. Data Mining

• 1. Text Mining

• 1. Data Selection

The output of data characterization can be presented in various forms

• pie charts

• bar charts

• curves and multidimensional tables

• multidimensional data cubes

• all of the above

A frequent itemset typically refers to

• items bought in sequential manner

• a set of items that often appear together

• structural forms

• none of the above

buys(X, “computer”) ⇒ buys(X, “software”) [support = 1%,confidence = 50%] is

• multidimensional association rule

• Correlation rule

• single-dimensional association rule

• All of the above

Identify the incorrect option among the following which is not involved in data mining.

• Data Exploration

• Knowledge Extraction

• Data Transformation

• Data Archeology

What does OLTP stand for?

• Offline transaction processing

• Online transaction processing

• Outline traffic processing

• None

State whether True or False: Data warehouse is generally updated in real-time.

• True

• False