data science 1

Data science 1

statistical analysis vs Data Mining

statistical analysis: are these two dataset have same distribution?(TTEST)

data mining: not a specific claim, a general correlation without an initial hypotheses .

data structure:

structured data: relational database

unstructured data: handwriting

7 Steps data processing:
1. cleaning
2.integeration
3.selection
4.transformation
5.Data Mining
6.pattern evaluation
7.Presentation(show off )

Data Mining:
1.pattern Mining
2.classification/Regression
3.cluster Analysis
4. Outlier analysis (ex: Credit card Fraud)