Upload
rathi
View
232
Download
0
Embed Size (px)
Citation preview
8/12/2019 Introduction to data mining - Chap1 Intro
1/31
Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004 1
Data Mining: Introduction
Lecture Note !or "ha#ter 1
Introduction to Data Miningb$
Tan, Steinbach, Kumar
8/12/2019 Introduction to data mining - Chap1 Intro
2/31
Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004 2
Lot o! data i being co%%ectedand &arehou ed ' (eb data, e)commerce ' #urcha e at de#artment/
grocer$ tore ' *an+/"redit "ard
tran action
"om#uter ha e become chea#er and more #o&er!u%
"om#etiti e -re ure i Strong ' -ro ide better, cu tomi.ed er ice !or an edge e g in
"u tomer e%ation hi# Management
Why Mine Data? Commercial Viewpoint
8/12/2019 Introduction to data mining - Chap1 Intro
3/31
Why Mine Data? Scientific Viewpoint
Data co%%ected and tored atenormou #eed 3*/hour
' remote en or on a ate%%ite
' te%e co#e canning the +ie
' microarra$ generating genee #re ion data
' cienti!ic imu%ation
generating terab$te o! dataTraditiona% techni5ue in!ea ib%e !or ra& dataData mining ma$ he%# cienti t ' in c%a i!$ing and egmenting data ' in 6$#othe i 7ormation
8/12/2019 Introduction to data mining - Chap1 Intro
4/31
8/12/2019 Introduction to data mining - Chap1 Intro
5/31
Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004
What is Data Mining?
Many Definitions ' 'on-tri ial e(traction of implicit) pre iously
un%nown and potentially useful information fromdata
' *(ploration + analysis) ,y automatic orsemi-automatic means) oflarge uantities of datain order to disco ermeaningful patterns
8/12/2019 Introduction to data mining - Chap1 Intro
6/31
Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004 ;
What is .not/ Data Mining?
What is Data Mining?
' "ertain name are more#re a%ent in certain CS%ocation E*rien, E ur+e,
E ei%%$F in *o ton area ' 3rou# together imi%ar
document returned b$earch engine according totheir conte t e g Ama.onrain!ore t, Ama.on com,
What is not DataMining?
' Loo+ u# #hone
number in #honedirector$
' Guer$ a (eb
earch engine !orin!ormation about?Ama.onB
8/12/2019 Introduction to data mining - Chap1 Intro
7/31
Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004