Unit_03: Computer applications

Question 1

What tool is often used in data mining ?

Answer 1

Artificial Intelligence (AI)

Question 2

AI method used in:
a) separate data in to subsets, then analyze the subsets to divide them into further subsets for a number of levels

b) Continually analyze and compare data until patterns emerge
c) Divide data into groups based on similar features or limited data ranges.

Answer 2

a) Decision trees
b) Neutral networks
c) Clustering

Question 3

what term is used for patterns found by neutral networks ?

Answer 3

rules

Question 4

When clusters used in data mining ?

Answer 4

When data isn’t labelled in a way that is favourable to mining

Question 5

what types of data storage used in data mining

Answer 5

Mining tools can work with all types of data storage, from large data warehouses to smaller desktop database to flat files.

Question 6

what analyst do to improve the data mining results ?

Answer 6

• refine parameter
• use other data analysis tools to examine the data
• scrap the data if it’s unusable

Question 7

Name some types of ways in which data mining is currently used

Answer 7

• Analyse Supreme Court decisions
• discover patterns in health care
• Pull stories about competitors from newswires
• resolve bottlenecks in production processes
• Analyse sequences in the human genetic makeup