User dsimcha - Cross Validated

dsimcha

Member for 13 years
Last seen more than 5 years ago

Maryland

13 Questions

Score Activity Newest Views

55 votes

7 answers

33k views

Best PCA algorithm for huge number of features (>10K)?

asked Sep 18, 2010 at 2:08

105 votes

12 answers

18k views

What, precisely, is a confidence interval?

asked Jan 28, 2011 at 0:23

47 votes

8 answers

11k views

Rigorous definition of an outlier?

asked Feb 13, 2011 at 15:07

14 votes

3 answers

7k views

Best way to put two histograms on same scale?

asked Mar 3, 2011 at 16:28

7 votes

4 answers

4k views

Determining trend significance in a time series

asked Dec 5, 2010 at 2:33

15 votes

2 answers

1k views

Sane stepwise regression?

asked Jan 29, 2011 at 4:44

7 votes

3 answers

1k views

How do extreme values scale with sample size?

asked Jan 25, 2011 at 4:16

8 votes

3 answers

1k views

How to visualize the true dimensionality of the data?

asked Mar 9, 2011 at 17:49

7 votes

2 answers

1k views

Big-O Scaling of R's cmdscale()

asked May 17, 2011 at 14:16

11 votes

2 answers

769 views

Finding number of gaussians in a finite mixture with Wilks' theorem?

asked Oct 7, 2011 at 16:18

3 votes

1 answer

631 views

Confidence Intervals for Holdout R^2?

asked Mar 18, 2011 at 21:04

2 votes

2 answers

528 views

How does required sample size scale with the number of features in multiple linear regression?

asked Dec 23, 2011 at 21:40

5 votes

1 answer

484 views

Estimating Poisson waiting times: using the last, censored sample?

asked Mar 30, 2012 at 1:26