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That’s like, so random!
Monte Carlo for Data Science
Corey Chivers, PhD
@cjbayesian
Drawing samples
is cool and all,
but what can I do with them?
1. Understand where obscure
statistics come from
2. Make your own statistic!
Chivers, C., Leung, B., Yan, N. D. (2014), Validation and calibration of probabilistic predictions
in ecology. Methods in Ecology and Evolution, 5: 1023–1032. doi: 10.1111/2041-210X.12238
3.Avoid having to do hard
(and sometimes impossible)
math
4. Understand what
inferences you can make with
your data
4. Propagate uncertainty in
complex predictive models
See next talk!
4. Run ‘what if’ scenarios
What if we were to see a surge in patients in a given unit, how would
this propagate to the rest of the hospital?
sim·u·di·dactic adj.*
/ˈsimyəˌdīdakt/
To understand by creating a representation
or model of real-world phenomena.
Particularly, using randomization and
computation to understand complex systems
and processes.
C2013: From Latin simulre, simult-, from similis, like and Greek
didaktos, taught;
* I totally just made this up,
but it could be a thing.
sim·u·di·dactic adj.*
/ˈsimyəˌdīdakt/
To understand by creating a representation
or model of real-world phenomena.
Particularly, using in randomization and
computation to understand complex systems
and processes.
C2013: From Latin simulre, simult-, from similis, like and Greek
didaktos, taught;
Data Science
Seeking Software Engineers (Sr. & mid-level) to help us build out
our real-time predictive application platform
http://www.med.upenn.edu/predictivehealthcare/
• Develop data products and predictive applications
• Collaborate with top medical professionals
• Revolutionize Health care delivery
Contact:
corey.chivers@uphs.upenn.edu @cjbayesian

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That's like, so random! Monte Carlo for Data Science

  • 1. That’s like, so random! Monte Carlo for Data Science Corey Chivers, PhD @cjbayesian
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
  • 9.
  • 10. Drawing samples is cool and all, but what can I do with them?
  • 11. 1. Understand where obscure statistics come from
  • 12.
  • 13. 2. Make your own statistic!
  • 14. Chivers, C., Leung, B., Yan, N. D. (2014), Validation and calibration of probabilistic predictions in ecology. Methods in Ecology and Evolution, 5: 1023–1032. doi: 10.1111/2041-210X.12238
  • 15. 3.Avoid having to do hard (and sometimes impossible) math
  • 16.
  • 17.
  • 18. 4. Understand what inferences you can make with your data
  • 19.
  • 20. 4. Propagate uncertainty in complex predictive models
  • 22. 4. Run ‘what if’ scenarios
  • 23. What if we were to see a surge in patients in a given unit, how would this propagate to the rest of the hospital?
  • 24. sim·u·di·dactic adj.* /ˈsimyəˌdīdakt/ To understand by creating a representation or model of real-world phenomena. Particularly, using randomization and computation to understand complex systems and processes. C2013: From Latin simulre, simult-, from similis, like and Greek didaktos, taught; * I totally just made this up, but it could be a thing.
  • 25. sim·u·di·dactic adj.* /ˈsimyəˌdīdakt/ To understand by creating a representation or model of real-world phenomena. Particularly, using in randomization and computation to understand complex systems and processes. C2013: From Latin simulre, simult-, from similis, like and Greek didaktos, taught;
  • 26. Data Science Seeking Software Engineers (Sr. & mid-level) to help us build out our real-time predictive application platform http://www.med.upenn.edu/predictivehealthcare/ • Develop data products and predictive applications • Collaborate with top medical professionals • Revolutionize Health care delivery Contact: corey.chivers@uphs.upenn.edu @cjbayesian

Editor's Notes

  1. A statistic is a quantity calculable from an observation or set of observations. The Z score is one. Chi-squared, etc. If you can simulate from your null hypothesis, you can build an empirical distribution. If your observation is in the tail, hey presto, you can reject Ho (if you go in for that kind of thing).