Cross Validated
Meta user
Network profile
4,115
reputation
3
24
50

gappy

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).

22
answers
21
questions
~624k
people reached
  • New York, NY
  • twitter.com/gappy3000
  • Member for 9 years, 3 months
  • 547 profile views
  • Last seen Oct 12 at 12:50

Communities (11)

Top network posts

Top tags (78)

Score 233
Posts 6
Posts % 14
Score 214
Posts 3
Score 29
Posts 6
Score 22
Posts 6
Score 19
Posts 3
Score 16
Posts 3
View all tags →

Top posts (43) All Questions Answers | Votes Newest

195 The Two Cultures: statistics vs. machine learning? Jul 25 '10
140 Python as a statistics workbench Oct 13 '11
56 What are the breakthroughs in Statistics of the past 15 years? Jan 21 '11
31 Visualizing a million, PCA edition Mar 3 '11
24 Introduction to statistics for mathematicians Jul 21 '10
23 What is the difference between PCA and asymptotic PCA? Sep 17 '10
19 What is the 'fundamental' idea of machine learning for estimating parameters? Aug 2 '10
18 Variable selection procedure for binary classification Jul 25 '10
18 Essential papers on matrix decompositions Nov 6 '10
16 Comparing the variance of paired observations Jul 27 '10
View all questions and answers →

Badges (77)

Gold

3

Rarest

Silver

24

Rarest

Bronze

50

Rarest

View all badges →