Data Mining is main concerned with the analysis of data and
Data Mining tools and techniques are used for finding patterns
from the data set. The main objective of Data Mining is to find
patterns automatically with minimal user input and efforts.
Data Mining is a powerful tool capable of handling decision
making and for forecasting future trends of market. Data
Mining tools and techniques can be successfully applied in various fields in various forms. Many Organizations now start
using Data Mining as a tool, to deal with the competitive
environment for data analysis. By using Mining tools and
techniques, various fields of business get benefit by easily
evaluate various trends and pattern of market and to produce
quick and effective market trend analysis. Data mining is very
useful tool for the diagnosis of diseases.
2.2. Techniques used in data mining
A. Association: - Association is one of the best known data
mining technique. In association, a pattern is discovered based
on a relationship of a particular item on other items in the same
transaction. For example, the association technique is used in
heart disease prediction as it tell us the relationship of different
attributes used for analysis and sort out the patient with all the
risk factor which are required for prediction of disease.
B. Classification: -Classification is a classic data mining
technique based on machine learning. Basically classification
is used to classify each item in a set of data into one of
predefined set of classes or groups. Classification method
makes use of mathematical techniques such as decision trees,
linear programming, neural network and statistics.
C. Clustering: -Clustering is a data mining technique that
makes meaningful or useful cluster of objects that have similar
characteristic using automatic technique. Different from
classification, clustering technique also defines the classes and
put objects in them, while in classification objects are assigned
into predefined classes. For example In prediction of heart
disease by using clustering we get cluster or we can say that
list of patients which have same risk factor. Means this makes
the separate list of patients with high blood sugar and related
risk factor n so on.
D. Prediction: - The prediction as it name implied is one of a
data mining techniques that discovers relationship between
independent variables and relationship between dependent and
independent variables. For instance, prediction analysis
technique can be used in sale to predict profit for the future if
we consider sale is an independent variable, profit could be a
dependent variable. Then based on the historical sale and profit
data, we can draw a fitted regression curve that is used for
profit prediction.