UGC NET CSE | August 2016 | Part 2 | Question: 48

Question

In Data mining, classification rules are extracted from _______.

• A. Data
• B. Information
• C. Decision Tree
• D. Database

Answer 1

ans is C 

 a decision tree can be used to visually and explicitly represent decisions and decision making. In data mining, a decision tree describes data but not decisions; rather the resulting classification tree can be an input for decision making. 

refer https://en.wikipedia.org/wiki/Decision_tree_learning

Classification Techniques

Decision Tree based Methods  

Rule-based Methods  ,Memory based reasoning ,Neural Networks ,Naïve Bayes , Bayesian Belief Networks

Decision Tree Based Classification  Advantages:

Inexpensive to construct 

Extremely fast at classifying unknown records

Easy to interpret for small-sized trees

Accuracy is comparable to other classification techniques for many simple data sets

Answer 2

Correct Answer C:

 

We can derive classification rules from Decision tree.