Classical

Data Mining - Data Mining MCQ

21:  

Heterogeneous databases referred to

A.

A set of databases from different b vendors, possibly using different database paradigms

B.

An approach to a problem that is not guaranteed to work but performs well in most cases.

C.

Information that is hidden in a database and that cannot be recovered by a simple SQL query.

D.

None of these

 
 

Option: A

Explanation :

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22:  

Enumeration is referred to

A.

A stage of the KDD process in which new data is added to the existing selection.

B.

The process of finding a solution for a problem simply by enumerating all possible solutions according to some pre-defined order and then testing them

C.

The distance between two points as calculated using the Pythagoras theorem.

D.

None of these

 
 

Option: B

Explanation :

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23:  

Heuristic is

A.

A set of databases from different vendors, possibly using different database paradigms

B.

An approach to a problem that is not guaranteed to work but performs well in most cases

C.

Information that is hidden in a database and that cannot be recovered by a simple SQL query.

D.

None of these

 
 

Option: B

Explanation :

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24:  

Hybrid learning is

A.

Machine-learning involving different techniques

B.

The learning algorithmic analyzes the examples on a systematic basis 2nd makes incremental adjustments to the theory that is learned

C.

Learning by generalizing from examples

D.

None of these

 
 

Option: A

Explanation :

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25:  

Kohonen self-organizing map referred to

A.

The process of finding the right formal representation of a certain body of knowledge in order to represent it in a knowledge-based system

B.

It automatically maps an external signal space into a system's internal representational space. They are useful in the performance of classification tasks

C.

A process where an individual learns how to carry out a certain task when making a transition from a situation in which the task cannot be carried out to a situation in which the same' task under the same circumstances can be carried out.

D.

None of these

 
 

Option: B

Explanation :

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