Stack Exchange

Karol J. Piczak

Warsaw, Poland

http://karol.piczak.com

Machine learning scientist working on a PhD in sound classification with convolutional neural networks, background in finance & hobbyist cinematic composition.

My web presence: karol.dvl.pl

top accounts reputation activity subscriptions
Top Questions
82 votes

Efficiently storing real-time intraday data in an application agnostic way

time-series software performance database column-oriented asked Apr 8, 2011 at 15:44
quant.stackexchange.com

68 votes

When to use Perfekt and Präteritum?

tenses perfect-tense preterite asked May 25, 2011 at 11:26
german.stackexchange.com

60 votes

Switching from C++ to R - limitations/applications

r development asked Mar 15, 2011 at 18:20
quant.stackexchange.com

56 votes

How reliable is a write protection switch on a USB flash drive?

hardware usb-drive asked Jun 1, 2011 at 22:29
security.stackexchange.com

31 votes

What methods do you use to improve expected return estimates when constructing a portfolio in a mean-variance framework?

modern-portfolio-theory mean-variance expected-return estimation asked Feb 1, 2011 at 0:08
quant.stackexchange.com

22 votes

Wireless keyboard sniffing risk

hardware wireless asked Mar 9, 2011 at 11:46
security.stackexchange.com

20 votes

Is there any way to fix a corrupted LDM database?

filesystems partition diskpart parted asked Jun 21, 2013 at 22:37
serverfault.com

8 votes

How to fix missing equations in Word 2007 when printing/converting to PDF?

pdf printing microsoft-word-2007 equations asked May 25, 2011 at 16:36
superuser.com

7 votes

Capybara code completion in RubyMine

cucumber capybara rubymine asked Apr 2, 2011 at 20:02
stackoverflow.com

6 votes

Debug DOM mutations with Firebug before page load

javascript jquery debugging dom firebug asked Apr 30, 2011 at 13:12
stackoverflow.com

1 2

Top Answers
59
Apache ab: please explain the output
serverfault.com

45
Why does redirecting 'script' to /dev/null/ allow 'screen' to work while su'ed as another user?
serverfault.com

24
Why does FTP passive mode require a port range as opposed to only one port?
serverfault.com

15
Is there a good online resource to look up the etymology of German words?
german.stackexchange.com

12
Are public historical time series available for ratings of sovereign debt?
quant.stackexchange.com

11
Firefox plugin for queuing downloads?
superuser.com

10
How to change default runlevel of Ubuntu (lucid)?
serverfault.com

10
Are share prices for a company which is listed on multiple exchanges, under multiple currencies, kept in synch?
money.stackexchange.com

10
Is using a public-key for logging in to SSH any better than saving a password?
security.stackexchange.com

10
Keeping a track record honest
quant.stackexchange.com

8
What "hacking" competitions/challenges exist?
security.stackexchange.com

8
GJR-GARCH Model In R
quant.stackexchange.com

7
What are some good technical and non-technical books for a math lover to get in to quantitative analysis?
quant.stackexchange.com

6
Will modules installed by insmod command persist after rebooting?
serverfault.com

6
Changing linux date with current time
serverfault.com

6
time to crack file-encryption password - more than just iteration
security.stackexchange.com

6
What .NET library can I use to solve optimization problems?
quant.stackexchange.com

6
Is duration additive? $C_{newDur}=A_{fundDur}w_{a} + B_{fundDur}w_{b}$?
quant.stackexchange.com

6
Speed up a selection in reaper
sound.stackexchange.com

5
How to point any *.mydomain variation to localhost (for development)?
serverfault.com

5
How can I connect a DVI monitor to the VGA port in my laptop?
superuser.com

5
"Meet in the middle" with SSH
superuser.com

5
How can higher co-moments be applied to portfolio optimization in an asset allocation context?
quant.stackexchange.com

5
FX Tick Data question
quant.stackexchange.com

5
Should Sharpe ratio be computed using log returns or relative returns?
quant.stackexchange.com

5
European turbo warrants
quant.stackexchange.com

5
Correct way to find the mean of annual geometric returns of monthly returns?
quant.stackexchange.com