dxbydt

49 ms·

481.
by dxbydt 12y ago
I don't want to go all Clinton here, but, please, lets first define "prediction". Here are some predictions that have general consensus- 1. You will die someday ( so will I ) 2. The Bay Area will experience an earthquake in n
482.
by dxbydt 12y ago
Just left a message for you. We might be able to offer an entry level gig if you're willing to move to the valley. You do have to know your math & cs, but you are a uiuc guy so that shouldn't be a problem.
483.
by dxbydt 12y ago
At the risk of downvotes, I will state a whole bunch of [Citation Needed] BS, which is, nevertheless, empirically true & in Hardy's favor - 1. Cerebral atrophy affects left brain disproportionately more than the right 2. Math is pr
484.
by dxbydt 12y ago
Rediscovering Koblitz (inventor of ECC ) two decades later ?! http://www.math.washington.edu/~koblitz/mi.html
485.
by dxbydt 12y ago
If you get it to run on Linux or OS X, there would be no shortage of buyers, including the company I work at. R is our primary toolset. I spend 4-5 hours per day in R studio, & it could certainly use some beefing up - handling large dat
486.
by dxbydt 12y ago
I think putting Big Data & ML in one Bucket is a Big Mistake, pun intended. From where I am (DS at a sv startup), I see a few discrete Big Buckets - 1. Offline Big Data - This is mostly the ETL crowd - Scalding, Cascading, Spark & a
487.
by dxbydt 12y ago
> What if the idea of work itself is what you dislike? In one of the economic courses I took, the Professor posed this very question. Apparently Karl Marx had also opined along these lines - how would a society incentivize someone who on
488.
by dxbydt 12y ago
True, but a lot of chemistry is mostly math too, and I flunked organic chemistry the first time. I think its because there is some domain knowledge involved in these subjects, which you have to actually care about. I don't particularly
489.
by dxbydt 12y ago
This excerpt - "what he really liked was solving problems. The text of each chapter was just some advice about solving them. He said that as soon as he got a new textbook he'd immediately work out all the problems—to the slight an
490.
by dxbydt 12y ago
maths[1], not math. [1] http://www.word-detective.com/2011/05/math-vs-maths/
491.
by dxbydt 12y ago
>There's a hatred of mathematics in mainstream American culture that runs very, very deep Completely agreed. As an immigrant, I can say it is very much a US thing. Haven't seen this much math-hate, but more importantly, math-ut
492.
by dxbydt 12y ago
>imagine trying to do this against 1000 symbols How about doing this not with 1000 equities but with say SPY options, or any other high volume options on cboe ? As long as your derivatives are ATM or say max 2 hops from ATM on either sid
493.
by dxbydt 12y ago
I am amazed at the level of erudition in the comments section as well. Shows what a highly literate intellectual audience that part of the world must be. Had this article been printed in the Times, you'd have the usual republicans vs K
494.
by dxbydt 12y ago
>This kind of information on context is much more difficult to find Yes, but its also highly subjective & imho useless information. Emanuel Derman often writes about this problem, and it is something I have observed very frequently a
495.
by dxbydt 12y ago
Honest question - Is there like a useful version of this for ,you know, hard CS/ML/... questions. Like what ML model should I use for training this dataset, & some advice on hyperparameter tuning ? That sort of thing. There&#x
496.
by dxbydt 12y ago
>the car-mechanic school and the math-professor school. Heh heh. Having worked mostly with math professors, I would say the code they write almost exclusively belongs to the car-mechanic school. Math professors never deck up their code w
497.
by dxbydt 12y ago
When you first wrote about how hadoop is a waste of time if you don't have multi-TB worth of data ( http://www.chrisstucchio.com/blog/2013/hadoop_hatred.html ), I thought that was classic linkbait. And then I
498.
by dxbydt 12y ago
I'm using LP in production as a solver for LAD( http://en.wikipedia.org/wiki/Least_absolute_deviations ). We've thousands of jobs running on Mesos ( see https://news.ycombinator.com/item?id=8394
499.
by dxbydt 12y ago
He's very funny! I've never heard him talk before. I listened to this whole thing & laughed so many times. "screw this whole entrepreneurship thing" at 34 mins.
500.
by dxbydt 12y ago
What Erdos worked on will outlast us all. Your great grandkids will be studying his theorems. OTOH, getting an iPhone to last beyond the annual upgrade cycle is a monumental achievement.
501.
by dxbydt 12y ago
I asked my wife "do you want to go to Mars?" She was in the other room with my noisy kid and she yelled back "No let's go in April" Took me a while to process that:) The comments here seem to have the same sort of d
502.
by dxbydt 12y ago
Wondering why this is voted down. He is quite right. Several math professors at my school who teach applied math do not know even the utmost basics...say things like computing kernel of a quotient group. Am sure they must have known it at s
503.
by dxbydt 12y ago
Thank you. How did you come up with the 50-50-50 setup, or was it purely empirical ? Did you try something simpler first, and how did that simpler method perform vis-a-vis this DNN ? Congratulations on topping the leaderboard.
504.
by dxbydt 12y ago
Can you please comment on why you need a 50 node 3 hidden layer ffnn to do regression, as opposed to something simpler ?
505.
by dxbydt 12y ago
Hey that's a great course. Pls do not avoid. Highly recommend signing up. The reason he wrote this famous paper & the book that evolved from that paper, in his own words - http://vserver1.cscs.lsa.umich.edu/~spage&#
506.
by dxbydt 12y ago
you have to divide by n.Here - def pointInsideCircle = {val (z,w) = (0.5,0.5);val (x,y) = (math.random,math.random); if ((x-z)*(x-z)+(w-y)*(w-y) < 0.25) 1 else 0;} (1 to 1000).map{x=> pointInsideCircle}.sum*4/1000.0
507.
by dxbydt 12y ago
If this was html & written to the point instead of stuffed in a pdf & written up in this roundabout manner, it would be on top of HN with 100+ votes :) I read the whole pdf but here's the TL:DR; anyways - Randomization improves
508.
by dxbydt 12y ago
imho there's a lot of froth in the market. this has created a bunch of 1-st gen AI companies in SF with speculative business models who want data-scientists to essentially work miracles & find needles in haystack. If someone had to
509.
by dxbydt 12y ago
I wish! I interviewed at 3 startups this year. The first one asked me to implement a Naive-Bayes Classifier on Map Reduce from scratch (ie. no Naive-Bayes libraries), gave me real customer data & I was supposed to run the classifier &am
510.
by dxbydt 12y ago
>software engineers should be paid much less than quants This is a complete misread. afaik I have used the word "quant" in the article exactly zero times.

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