Data Mining (Concepts, Applications, Techniques, Tools, Process, Experiences) - داده کاوی (مفاهیم، کاربردها، تکنیک ها، ابزارها، فرایند و تجربیات داده کاوی در ایران)
First successful experience of sap erp implementation in iran
Similaire à Data Mining (Concepts, Applications, Techniques, Tools, Process, Experiences) - داده کاوی (مفاهیم، کاربردها، تکنیک ها، ابزارها، فرایند و تجربیات داده کاوی در ایران)
Similaire à Data Mining (Concepts, Applications, Techniques, Tools, Process, Experiences) - داده کاوی (مفاهیم، کاربردها، تکنیک ها، ابزارها، فرایند و تجربیات داده کاوی در ایران) (6)
Data Mining (Concepts, Applications, Techniques, Tools, Process, Experiences) - داده کاوی (مفاهیم، کاربردها، تکنیک ها، ابزارها، فرایند و تجربیات داده کاوی در ایران)
8. Data Analysis
Tests for statistical
correctness of models
Are statistical assumptions
of models correct?
Eg Is the R-Square good?
Hypothesis testing
Is the relationship
significant?
Use a t-test to validate
significance
Tends to rely on sampling
Techniques are not
optimised for large
amounts of data
Requires strong statistical
skills
Data Mining
Originally developed to
act as expert systems to
solve problems
Less interested in the
mechanics of the
technique
If it makes sense then
let’s use it
Does not require
assumptions to be made
about data
Can find patterns in very
large amounts of data
Requires understanding
of data and business
problem
9/27/20168
12. Increasing potential
to support
business decisions End User
Business
Analyst
Data
Analyst
DBA
Making
Decisions
Data Presentation
Visualization Techniques
Data Mining
Information Discovery
Data Exploration
OLAP, MDA
Statistical Analysis, Querying and Reporting
Data Warehouses / Data Marts
Data Sources
Paper, Files, Information Providers, Database Systems, OLTP
13. 9/27/201613
Data
Warehouse
Data cleaning & data integration Filtering
Databases
Database or data
warehouse server
Data mining engine
Pattern evaluation
Graphical user interface
Knowledge-base
50. 50
Tid Refund Marital
Status
Taxable
Income Cheat
1 Yes Single 125K No
2 No Married 100K No
3 No Single 70K No
4 Yes Married 120K No
5 No Divorced 95K Yes
6 No Married 60K No
7 Yes Divorced 220K No
8 No Single 85K Yes
9 No Married 75K No
10 No Single 90K Yes
10
Refund
Mar St
Tax Inc
YESNO
NO
NO
Yes No
MarriedSingle, Divorced
< 80K > 80K
Best when the predictor variables are
categorical
9/27/2016
51. 51
Tid Refund Marital
Status
Taxable
Income Cheat
1 Yes Single 125K No
2 No Married 100K No
3 No Single 70K No
4 Yes Married 120K No
5 No Divorced 95K Yes
6 No Married 60K No
7 Yes Divorced 220K No
8 No Single 85K Yes
9 No Married 75K No
10 No Single 90K Yes
10
Training
Set
Model
Learn Classifier
Refund Marital
Status
Taxable
Income Cheat
No Single 75K ?
Yes Married 50K ?
No Married 150K ?
Yes Divorced 90K ?
No Single 40K ?
No Married 80K ?
10
Test
Set
9/27/2016
71. Data
Understanding
Collect Initial Data
Initial Data Collection
Report
Describe Data
Data Description Report
Explore Data
Data Exploration Report
Verify Data Quality
Data Quality Report
Business
Understanding
Determine
Business Objectives
Background
Business Objectives
Business Success Criteria
Situation Assessment
Inventory of Resources
Requirements,
Assumptions, and
Constraints
Risks and Contingencies
Terminology
Costs and Benefits
Determine
Determine
Data Mining
Goal
Data Mining Goals
Data Mining
Success
Criteria
Produce Project
Plan
Project Plan
Initial Asessment of
Tools and
Techniques
9/27/201671
72. 9/27/201672
Data Preparation
Data Set
Data Set Description
Select Data
Rationale for Inclusion /
Exclusion
Clean Data
Data Cleaning Report
Construct Data
Derived Attributes
Generated Records
Integrate Data
Merged Data
Format Data
Reformatted Data
Modeling
Select Modeling
Technique
Modeling Technique
Modeling Assumptions
Generate Test Design
Test Design
Build Model
Parameter Settings
Models
Model Description
Assess Model
Model Assessment
Revised Parameter
Settings
73. Evaluation
Evaluate Results
Assessment of Data
Mining Results w.r.t.
Business Success
Criteria
Approved Models
Review Process
Review of Process
Determine Next Steps
List of Possible Actions
Decision
Plan Deployment
Deployment Plan
Plan Monitoring and
Maintenance
Monitoring and
Maintenance Plan
Produce Final Report
Final Report
Final Presentation
Review Project
Experience
Documentation
Deployment
9/27/201673