DM-BCA-UNIT I
BCA DATAMINING AND WAREHOUSING-320E6B UNIT I Introduction: Data mining – Functionalities – Classification – Introduction to Data Warehousing – Data Pre-processing: Pre-processing the Data – Data cleaning – Data Integration and Transformation – Data Reduction 1.1)INTRODUCTION Introduction to Data Mining Data mining (also called data or knowledge discovery ) is the process of analyzing data from different perspectives and summarizing it into useful information . This information can be used to increase revenue, reduce costs, or improve decision-making . Data mining software is one of the analytical tools that allows users to: Analyze data from multiple dimensions Categorize data Identify relationships between data items Technically , data mining is the process of finding correlations, patterns, and trends in large relational databases containing many fields. Simple definition: Data mining is the process of extracting knowledge from la...