... Data Mining: Introduction Lecture Notes for Chapter 1 Introduction to Data Mining byTan, Steinbach, Kumar© Tan,Steinbach, Kumar Introduction to Data Mining 20 Clustering of S&P 500 Stock Data Discovered ... of the data is never analyzed at all0500,0001,000,0001,500,0002,000,0002,500,0003,000,0003,500,0004,000,000 199 5 199 6 199 7 199 8 199 9The Data GapTotal new disk (TB) since 199 5Number ... of data Traditional techniques infeasible for raw data Data mining may help scientists –in classifying and segmenting data –in Hypothesis Formation© Tan,Steinbach, Kumar Introduction to Data...