dxbydt

49 ms·

421.
by dxbydt 10y ago
Also consider that those who shy away from learning this material aren't exactly wrong. They're making an optimal choice given their skillset. I've been a DS for the past 4 years, used to be a risk quant at the bank before th
422.
by dxbydt 10y ago
I am applying ml to a healthcare domain, and one of the challenges is irrational faith in the outcome. My model says things like - based on your past diet, you must drink more coffee and eat fewer chicken wings and.... When I showed this to
423.
by dxbydt 10y ago
David Ruppert's "Statistics and Finance" is the classic you are looking for. It is a standard textbook in most finance curriculums in the US. Roughly 50% of the book is plain statistics as applicable to finance. The rest is f
424.
Unsupervised Clustering of Personality:{envious, optimist, pessimist, trustful}(advances.sciencemag.org)
1 points by dxbydt 10y ago|0 comments
425.
by dxbydt 10y ago
I don't. I always buy the non fluorinated toothpaste from Trader Joe's. Considering it is sold out 50% of the time, it is a pretty popular option.
426.
by dxbydt 10y ago
I got a pretty competitive offer from a San Diego startup about 3 years back. They flew me down, wined & dined & afterwards we talked a bit of technology. They even did a real-estate tour to sort of close the deal. I turned them dow
427.
by dxbydt 10y ago
I agree with the article not because I've drunk the kool-aid but because I have seen the math work out on numerous occasions. Say you average $x per year for 3 years, then your startup fails, so you join bigcorp at $y. So at the end of
428.
by dxbydt 10y ago
Honey is a strange alternative to sugar. For the past 2 decades, I have used honey as the sole sweetener, though the rest of the family continues to patronize sugar :( The trouble with honey is that it's seriously pricey, and the commu
429.
by dxbydt 10y ago
This isn't quite true. Yes, the BofA head office is in Charlotte. I used to work there. All the interesting work happened at BofA NYC, regardless of its smaller size. The same was true with Wells Fargo. In fact even BofA SF in the fi
430.
by dxbydt 10y ago
fwiw, over 4 years ago, I quit a risk quant job at an investment bank and joined Twitter. When I saw all the sophisticated ML systems they had deployed, I asked the same question - How do I, a person of average intelligence with zero exposu
431.
by dxbydt 10y ago
Since every dataframe has a lazy instance of rdd, and several methods on dataframes simply call the corresponding method on rdd ( eg. foreach ), I am not sure about the faster bit of your assertion.
432.
by dxbydt 10y ago
Perhaps an example might help. Say x(t) = exp(-t) f(x(t)) = (x^2)/2 Then it satisfies conditions imposed by parent, namely x' = -x = -f'
433.
by dxbydt 10y ago
>It would be unthinkable in America to force all cars on certain roads to be self-driving only. There are private cities (Celebration, FL), private housing communities (1000s of them), private large corporate campuses, private shipping y
434.
by dxbydt 10y ago
The "unlimited" is mostly branding, like gmail's unlimited email storage. In practice, professionals like myself simply don't have the time to bug you at all hours of the day. I have a dayjob and maybe an hour I could de
435.
by dxbydt 10y ago
Given the frequency and popularity of these "math texts for programmer audience" threads on HN, I think there's a solid business model where programmers pay a onetime subscription fee for unlimited email/hangouts access
436.
by dxbydt 10y ago
Why abstract? Its pretty concrete, so more like TeslaFactoryFactoryImpl.
437.
by dxbydt 10y ago
> drawing a line at every angle through a country and then moving that line up and down. This part is quite messy. For every given (c1,c2) city pair, you'd get 1 straight line that connects c1 to c2. Then for every city ck, you need
438.
by dxbydt 10y ago
This is such an interesting idea! Lots of potential. Given n (city,population, area) tuples for country C, find 2 cities, the line thru which slices C into two land masses M and N. M would then have k tuples and N would have n-k, such that
439.
by dxbydt 10y ago
With the massive resurgence in Neural Networks, it may interest you to know that DEKFs ( decoupled extended Kalman Filter ) are a very fast sequential weight update procedure while training large neural nets. For instance: http:/&#x2F
440.
by dxbydt 10y ago
Aside: Hey you are the guy who wrote those awesome tutorials on lagrange multipliers!!! I actually used your materials multiple times at official presentations, devtimes and other occasions where the management and developers wanted to know
441.
by dxbydt 10y ago
Yeah, I'm not so sure. On the one hand, there's stuff like this - https://twitter.com/pankaj/status/729417379730448384 Here you have SF entrepreneurs with vastly more capital & information than the a
442.
by dxbydt 10y ago
What's really going on in India ? You paint a pretty bleak picture. Then I read firsthand reports by someone like yummyfajitas who lives and works there - https://news.ycombinator.com/reply?id=11766615&goto=item%3Fi
443.
by dxbydt 10y ago
http://www.russianschool.com/location/dublin From the site: "compare RSM's average math SAT score of 774 (out of 800) to California's average math SAT score of 516."
444.
by dxbydt 10y ago
If you are long puts on spy, imho it's much better to fund them with short calls at the same strike, and hedge yourself with long otm calls at 1.2*strike. ie. Forward + Call, as opposed to long put.
445.
by dxbydt 10y ago
AI going from 0.3% to 1.8% is not a trend unless you adopt some Clintonesque redefinition of the term. Similarly for the other graphs. If such tiny percentage changes were actually trends, the stock market has millions of such trends every
446.
by dxbydt 11y ago
Sigh! tbh the wsj comments on this particular issue are mostly accurate, though the other issues are debatable. 1. Tsla is quite volatile. 2. If it drops significantly by some Y%, Musk's shares which are used as collateral would be cal
447.
by dxbydt 11y ago
Thank you so much for posting this!
448.
by dxbydt 11y ago
This is a supremely ridiculous set of suggestions that has no merit whatsoever. Companies aren't libraries. They aren't paying you to sit and read books. There is an assigned dayjob, a set of tasks you have on your jira that you
449.
by dxbydt 11y ago
I actually proposed this route where I work. We have a decade old large and complex front end JS app, and my suggestion at improving it was to replace and rewrite most of it in scalajs in a phased manner. We already have a ton of Scala engi
450.
by dxbydt 11y ago
1.math prereqs at UW: http://courses.washington.edu/css490/2012.Winter/lecture_sli... 2. math prereqs at UCSC: http://people.ucsc.edu/~praman1/static/pub/math-for-ml.pdf 3. math prere

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