agentq

8 ms·

1.
by agentq 4y ago
I researched & prototyped (in R), and ultimately put into production (C++) a core set of spectral risk analysis analytics that replaced outdated VaR and vol forecasts for an extremely large asset management firm and left immediately aft
2.
by agentq 6y ago
80s.nyc has a somewhat similar street view using archival images from the 80s
3.
by agentq 14y ago
Monte Carlo simulation is the most oft-cited example. This tends to be most relevant to quickly American pricing options, or anything that isn't easily done in closed-form.
4.
by agentq 14y ago
-- closed 2011 Nov 28.
5.
by agentq 14y ago
For anyone who doesn't want to roll their own FFT, take a look at this excellent pure C implementation: http://www.fftw.org/
6.
by agentq 14y ago
I actually find base R excellent for data munging and manipulation, even without using additional packages. Here is a reproducible example that very easily accomplishes what you were trying to do (first two lines just set up a sample da
7.
by agentq 14y ago
I tried to convince the croupier that zero was an even number, but alas ...
8.
by agentq 14y ago
this is pretty neat! one quick thing -- 40th and 8th ave -> grand central: suggests S grand central -> 53rd and park: suggests 6 40th and 8th -> 53rd and park: some crazy sequence of bus routes. http://sandytransit.alastair.is/
9.
by agentq 14y ago
no love for J?
10.
by agentq 14y ago
they don't mention NSPR. is it dead? http://www.mozilla.org/projects/nspr/
11.
by agentq 14y ago
In financial practice, asset-level PCA isn't as common, especially in systems where covariance estimation is fraught with misspecification errors. Instead, individual securities first condensed to factors (e.g., for equity some examples are
12.
by agentq 15y ago
http://www.jwz.org/dadadodo/ DadaDodo is a fairly old implementation that may be of interest.
13.
by agentq 16y ago
"He’s not alone in paying for the cache of being among the first to purchase apple products." cache? sigh
14.
by agentq 16y ago
The first thing I'd recommend doing is find the unique entries THEN sort. Unless uniq has vastly better performance on sorted files...
15.
by agentq 16y ago
To further goad the OP to immediately leave his current job: between junior and senior year of college, I made a bit more than the OP's yearly pay in a 12wk internship. Please, for your wife and kid(s), get out of this horrible situation.
16.
by agentq 16y ago
Thanks, I'll check it out!
17.
by agentq 16y ago
My programming background is fairly extensive in non-functional languages. I work in finance, and the company I joined uses R for a considerable amount of model prototyping. I'd really like to switch to Python+numpy/scipy, but I haven't bee
18.
by agentq 16y ago
s/ia/a/
19.
by agentq 16y ago
I am a quantitative analyst at a large asset management firm -- I focus on risk models and alpha-generating strategies. Though we have separate developer teams, my job requires considerable hacking.
20.
by agentq 16y ago
LMDDGTFY: http://lmddgtfy.com/?q=goog-411+phoneme&v=
21.
by agentq 16y ago
and: http://www.newsley.com
22.
by agentq 16y ago
Understood. The specific aspect of Digg that I am comparing recent trends to is that of submission of duplicate articles, and the inevitable notification thereof by other users. A small example: http://www.google.com/search?hl=en&q=sit
23.
by agentq 16y ago
HN is starting to feel like Digg. http://news.ycombinator.com/item?id=1160552
24.
by agentq 16y ago
Even better, just hit Shift+I ...
25.
by agentq 16y ago
Glad you like it! Splitting in Smooth Gestures means taking the current tab and those to the right and moving them to a separate window. Merging takes the current window's tabs and appends them to the last focused window.
26.
by agentq 16y ago
I'd also suggest "Smooth Gestures" https://chrome.google.com/extensions/detail/lfkgmnnajiljnolc... Some of the functionality is pretty cool (i.e., haven't seen it in All-in-One Gestures for Firefox), like merging and splitting tabs.
27.
by agentq 16y ago
What will end up happening to the 'real bad guys' http://xkcd.com/538/
28.
by agentq 16y ago
It's good to see that the public's relative need for weather(.com) forecasts has not changed in the last twelve years.
29.
by agentq 17y ago
In the particular case of integer ids, however, can't you just make sure what's being passed is an integer? Similarly, for a 'simple' username, check against "^[a-zA-Z0-9]+$"?
30.
by agentq 17y ago
If anyone is interested in a more academic (i.e., behavioral economics / information theory-based) discussion of "spin" or "slanting," I'd recommend this paper by Mullainathan and Shleifer: The Market for News http://www.economics.harvard.

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