Classification in Data mining test-1

Data mining is defined as?

• A subject-oriented integrated time-variant non-volatile collection of data in support of management

• The stage of selecting the right data for a KDD process

• The real discovery stage of a knowledge discovery process

• None of these

How to define Classification accuracy?

• A subdivision of a set of examples into a number of classes

• The task of assigning a classification to a set of examples

• Measure of the accuracy of the classification of a concept that is given by a certain theory

• None of these

Self-organizing maps are the best example of which of the following?

• Unsupervised learning

• Supervised learning

• Reinforcement learning

• Missing data imputation

Suppose we are predicting the number of children based on storks’ population size, number of children is

• observation

• feature

• attribute

• outcome

Which is considered before investing in Data Mining?

• Functionality

• Vendor consideration

• Compatibility

• A, B, and C