Ragib_Zaman

9 ms·

31.
by Ragib_Zaman 7y ago
>...where I discover the hidden complexity of a simple programming problem. I thought it was very ironic that soon after that sentence, the author claims the arithmeticSum method is O(1) when it is actually O(log(n) log(log(n))). Many pe
32.
by Ragib_Zaman 7y ago
Exactly. Lots of places will not blink an eye if you are reading a blog post on something you'll be able to apply within a week. Having a textbook with pen and paper out to learn something that may not bring fruit for several months is
33.
by Ragib_Zaman 7y ago
And the pow and log methods they call run loops anyway. What is wrong with loops anyway?
34.
by Ragib_Zaman 7y ago
And their core goal of truly autonomous vehicles is a technical challenge that at this point seems like it will take at least several years more than what they originally thought 3 years ago. Their situation is not similar to FB in 2008 at
35.
by Ragib_Zaman 7y ago
Quite interestingly, Symplectic Geometry is currently under review/investigation for some of the foundational papers in the field having serious gaps and outright errors after closer inspection. These concerns were always spoken of in
36.
by Ragib_Zaman 7y ago
The first path lets you become a quantitative problem solver, which is widely employable. The second path leads to being very good at specific deep learning tasks that I don't think will be in large demand in 5 years IMO, at least outs
37.
by Ragib_Zaman 7y ago
I agree that brown noise generally sounds more calming and pleasant, for example some people enjoy falling asleep to brown noise. In my personal use case of shutting out external noises, I find that it's only the higher frequencies tha
38.
by Ragib_Zaman 7y ago
I also hate external noise. Here's my nuke option. 1) Sony XM3 headphones. They are the 2nd most comfortable after the Bose headphones and have the best NC. So far, nothing you haven't done before. 2) High quality foam earplugs. I
39.
by Ragib_Zaman 7y ago
> "This work is predicated on a key observation that a mixed numerical and analytic approach can be more powerful than a purely analytical method. Instead of attempting to find analytic solutions with brute force, we use a numerical
40.
by Ragib_Zaman 7y ago
Indeed, Dijkstra barely ever even used a computer. I can't say I agree with trashing a Prof with deep expertise in algorithms for not knowing C while doing a favour by substituting for a colleague.
41.
by Ragib_Zaman 7y ago
Homework problems and notes split into individual lectures available here: https://www.coursehero.com/sitemap/schools/234-University-of...
42.
by Ragib_Zaman 7y ago
I wish I had searched for something like this when I was revising for some interviews last month! This is a great quick overview of intro probability. Thanks for sharing OP.
43.
by Ragib_Zaman 7y ago
As throwawaymath mentioned, it's not too hard to find papers written by them, but I'll highlight some papers that I found particularly interesting. Many optimization problems that arise in machine learning can be viewed as minimiz
44.
by Ragib_Zaman 7y ago
Flip side to this - I remember studying a series of papers in statistics/optimisation/machine learning with highly non-trivial content published between 1998 and 2008 by the Della Pietra brothers. I had assumed they were mathemati
45.
by Ragib_Zaman 7y ago
That certainly explains a whole lot. Thanks!
46.
by Ragib_Zaman 7y ago
Jane Street is OCaml basically from top to bottom. They seem pretty fast.
47.
by Ragib_Zaman 7y ago
Perhaps not a satisfactory response but when I start drifting towards thinking FP is fundamentally not as performant as _whatever_else_, I remember that Jane Street uses OCaml basically from top to bottom, and they certainly can't be t
48.
by Ragib_Zaman 7y ago
I've never tried nor wanted to cut it out entirely, but I did want to reduce my intake so that when I did take it, I was not so tolerant of it and it's positive effects were more noticeable. Due to having built a tolerance and enj
49.
by Ragib_Zaman 7y ago
Great problem OP. 1 - As some people have already clarified for other commenters, it indeed makes no difference how Player 1 picks their numbers. They can pick them from some distribution of their own, or in an adversarial manner. The proba
50.
by Ragib_Zaman 7y ago
The pendulum has now swung the other way on the misconception by the general public of mathematicians being great at mental arithmetic, and it's become a meme for some mathematicians to take some pride in being average or poor at menta
51.
by Ragib_Zaman 7y ago
If you do data science/ML with CPU computed models (basically everything except deep networks), you get a ~2x speedup when doing e.g n-fold cross validation (n >= 64), or hyperparameter optimisation via grid search.
52.
by Ragib_Zaman 7y ago
Lots of clever people unintentionally trained deep networks that unfairly discriminated against people of various races or from certain zip codes. Sometimes you aren't aware of all the implications of the decisions you might make and a
53.
by Ragib_Zaman 7y ago
> Judgements like "I'd expect dev to write it themselves" come across as arbitrary. I feel like this depends on the type of dev. If you write C code for microcontrollers then who cares, but if you do web dev then using a g
54.
by Ragib_Zaman 7y ago
Ahh fair enough. I should have spent more time understanding your rationale. I'll edit my original comment to reflect that.
55.
by Ragib_Zaman 7y ago
Edit: The original comment below did not take into proper account the significance of taking the floor in the approximations, rendering it mostly useless. ---- If the "refined approximation" assumes it's easy to 1) subtract 1
56.
by Ragib_Zaman 7y ago
I know of a few major trading firms that use MATLAB for a lot of their analysis. In many companies that hire engineers they also often use MATLAB as it's sufficient for what they need those engineers to do (and programmers at those com
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by Ragib_Zaman 7y ago
Is this conjecture or has AMD stated in a roadmap they plan to have 5nm in 2 years?
58.
by Ragib_Zaman 7y ago
Also maybe complications involving latency for communication between cores, and memory coherence protocols.
59.
by Ragib_Zaman 7y ago
Pretty amazing to see him going straight from a a B.S. into designing processors and fairly quickly becoming the head engineer on cutting edge processors.
60.
by Ragib_Zaman 7y ago
If you want to prep for interviews, it may be most efficient to look through lots of hacker rank problems and learn them in an ad-hoc function, looking up solutions online after you've tried them. If you actually want a good understand

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