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1530 track2 shihadeh
1. REVOLUTIONIZE YOUR MODELS
CASE STUDY: Crime Reduction & Customer Retention
Edward S. Shihadeh, PhD
Chief Data Scientist
Auspice Analytics
2. Current $1.75 million federal grant for risk algorithms for Louisiana DOC
Mathematical demographer, criminologist, 30 years - data scientist
Co-author, Statistical Models for Ordinal Variables
(Advanced SAGE Series)
Advisor to District Attorney on Baton Rouge crime reduction initiative
Chief Data Scientist for AUSPICE ANALYTICS
Dr. Edward S. Shihadeh
3. 32% Murder rate decrease in Baton Rouge since
2012
Pushed customer retention to record highs
Rewriting offender management system in
Louisiana
Our track Record : Breakthroughs
4. Two examples
An unusual context: Predictive
analytics to reduce the murder rate
How one industry’s leading retention
product failed and how this perspective
improved outcomes dramatically
How you can leverage these successes
Proving that Social Science Improves Outcomes
12. Loss of Tuition Legislative Penalty
Market Leader
Product “off the shelf”
X
13. Market Leader Probability Distribution
DENSITY
05
04
03
02
01
0
Probability of Returning to School
Average Retention : 72.32
20 40 60 80 100
“Maybe Curve”
19. Optimization
ROC Correctly Classified True Negatives
Logistic Regression .78 76.7% 2575
J48 Decision Tree .72 76.8% 2514
Multilayer Perceptron .77 75.8% 2632
Max Difference Between = 118
ROC Correctly Classified True Negatives
Logistic Regression .88 81.2% 3442
J48 Decision Tree .81 82.6% 3216
Multilayer Perceptron .87 80.2% 3404
Least Difference Across= 588
Estimation Optimization
Social Science Optimization
20. Efficiency of Predictive
Modelling
This is the distribution of all 250,000+
students from which we recruit each
year.
Recruitment staff often wastes energy
on this large group of people who have
absolutely no chance of coming to LSU.
0
204060
Density
0 .2 .4 .6 .8
Pr(enrolled)
21. Skewed Distribution Works in our Favor
•The distribution of predictions is highly skewed
•This lets you limit resource expenditure on a large number of individuals.
•This also allows you to find your targets more effectively.
•Narrow down 250,000 recruits to a more manageable 29,000. (removed 88.4%)