syllabus. we covered regression in applied stats. we will review regression and cover time series...
TRANSCRIPT
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Syllabus
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We covered Regression in Applied Stats.
We will review Regression and cover Time Series and Principle Components Analysis.
Reference Book
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Reference Book
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Probabilities
1 2 3 4 5 6
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12
Probability Distribution
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Conditional Probability & Bayesian Networks
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Linear Regression
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More Regression
• Interaction (Non-Linear)
• Structural Equation Modeling• Moderation• Mediation
• Advanced• Lasso• Ridge• Regularized
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No
YesNo
Yes
Longitudinal & Time Series
Cro
ss-S
ecti
onal
&
Pan
el D
ata
PEW Mobile Phone
Galton Children Height
Census
Stock Market
Historical River Levels
Old Faithful
Web Analytics
Titanic Survivors
Bank Loans
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plot(stl(beer,s.window="periodic"))
Time Series
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Datasets: Training and Test
Develop Model Using Training Dataset and Apply to Test Data
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Bank Loan
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Decision Trees
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Principle Components Analysis & Factor Analysis
Here 13 variables are reduced to 4.
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Peop
le
Variables
Cluster Analysis
Customers are grouped by common characteristics
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Peop
le
Variables Variable/Dimension Reduction
Principle Components Analysis & Factor Analysis
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Tom BradyNot Tom Brady
Machine Learning
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Same Data, Different Algorithms
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• One aspect of Predictive Modeling is comparing the performance of various models towards then choosing the one which performs best
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“Combine predictions from multiple, complementary models… one model’s strengths compensating for the weaknesses of others.”
Ensembles of People and Approaches
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Text Mining / Sentiment Analysis
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Social Network Analysis
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Conditional Probability & Bayesian Networks