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gappy
  • Member for 14 years, 5 months
  • Last seen more than 1 year ago
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Interested primarily in econometric analysis of large data sets and in dimensionality reduction methods. Making a living with equity factor models and portfolio optimization. B.S./M.S. in Physics (University of Rome), M.S. Statistics, M.S./Ph.D. Management Science (Stanford).

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232
The Two Cultures: statistics vs. machine learning?
Jul 25, 2010
answer
149
Python as a statistics workbench
Oct 13, 2011
question
57
What are the breakthroughs in Statistics of the past 15 years?
Jan 21, 2011
question
33
Visualizing a million, PCA edition
Mar 3, 2011
answer
29
Introduction to statistics for mathematicians
Jul 21, 2010
question
23
What is the difference between PCA and asymptotic PCA?
Sep 17, 2010
answer
21
What is the 'fundamental' idea of machine learning for estimating parameters?
Aug 2, 2010
answer
20
Variable selection procedure for binary classification
Jul 25, 2010
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18
Comparing the variance of paired observations
Jul 27, 2010
question
18
Essential papers on matrix decompositions
Nov 6, 2010
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How to increase the number of columns using R in Linux
66
Customize axis labels
63
Is there an R equivalent of the pythonic "if __name__ == "__main__": main()"?
49
Create new dummy variable columns from categorical variable
37
using R to copy files