hnracer

6 ms·

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by hnracer 6y ago
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by hnracer 6y ago
Are you saying the book itself is ML porn?
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by hnracer 6y ago
Indeed but I wonder if one could build a platform that does this behind the scenes. User sends BTC to the online wallet, and the site hedges on behalf of the user on one of the liquid future exchanges, locking in the prevailing BTC price. P
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by hnracer 6y ago
You can just hedge your exposure on a futures exchange and still use BTC to transact but be unexposed to any price movements. Although doing that is very complicated and defeats the purpose of an easy to use alternative to centralized cash.
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by hnracer 6y ago
How do they account for the expected lower turnover due to the price increase when they estimate the post-policy gross hourly wage?
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by hnracer 6y ago
It's not an ideal natural experiment because the cost of all ride sharing will rise simultaneously, so many of the substitutes (other brands) are equally more expensive. In other markets Uber couldn't raise their prices without ha
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by hnracer 6y ago
I think there's two reasons. First is that the costs are hidden and complicated. We need a decent understanding of economics combined with an honest and deep analysis of the consequences of the specific policy to conceptualize why it&#
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by hnracer 6y ago
Does R have robust CSV parsing? I remember using the default and it'd be extremely finicky about getting the header and index flags right and wouldn't typecast numeric columns properly (instead they'd end up as factors and no
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by hnracer 6y ago
I've used R (3 years) and Python (8+ years) in data science and much prefer Python, because it can do things that aren't just pure data analysis, and because pandas is so amazingly good compared to R's data matrix solutions,
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by hnracer 6y ago
It's designed to be a 1v1 game, a lot of people don't like that because it becomes hyper-competitive and even a little stressful when compared to team games
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by hnracer 6y ago
Is there a good discovery mechanism for finding individual journalists producing quality content on eg substack or medium? I want to find their content but I don't know where to start.
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by hnracer 6y ago
The burden of proof is on the individual claiming that agricultural investment by Western firms into Africa is a negative, given that it's commonly believed that FDI is a good thing and African governments routinely and actively seek o
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by hnracer 6y ago
The sentence following the one that you quoted is the defense, perhaps you should argue against that instead?
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by hnracer 6y ago
RTSs attract a certain personality type: the type of person that becomes an engineer, mathematician, scientist, or statistician. I met so many individuals from these career choices when I was playing RTSs that it was uncanny. Given this, it
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by hnracer 6y ago
We can't honestly equate the Uyghur genocide, jailing of political dissidents, Xi's dictator for life status and the CCP's censorship apparatus to the modern US, even when factoring in the ongoing travesties e.g NSA surveill
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by hnracer 6y ago
Apologies, I meant to say large public companies in my OP, i.e. those listed on the stock exchange. I'd be interested if there was any examples of those using compromising political information for leverage. I understand however that
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by hnracer 6y ago
It's the proximity of the situation to Jack Ma's comments that tips you off as to the true reason for the actions. It's not just normal anti-trust, the timing suggests an attempt to punish any opposition to the CCP or Xi.
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by hnracer 6y ago
And that's not a small difference, it's the difference between a liberal democracy (with its many mistakes and flaws) and an authoritarian dictatorship. The both-sides fallacy should be avoided here and elsewhere.
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by hnracer 6y ago
It's wild and rather irresponsible given the censorship and surveillance that people in China are subjected to.
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by hnracer 6y ago
Are there examples of large public companies releasing compromising information on elected officials in response to political threats or pressure?
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by hnracer 6y ago
#84 is especially good advice. Bandwagon criticism and demonisation is very common in the workplace and pretty much every group environment I've been in, although to varying degrees. Definitely a deep-seated psychology/biological
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by hnracer 6y ago
I'm probably being dense but what do you mean by "the same way it was when it was tossed 51% of the time"?
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by hnracer 6y ago
There's two problems in markets, price prediction and execution (ie what to do with your prediction). The former is a supervised learning problem but the latter is an action space problem ie an RL problem. Although nobody in industry h
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by hnracer 6y ago
Many very smart people have tried and failed. State of the art remains very basic supervised models with hand engineered features. In the markets, data is permanently scarce, so these methods don't work well. In the RL problems that De
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by hnracer 6y ago
There's ways to address this such as an open auction with one day to collect buys and sells. You'll get a pretty stable open price determined by the fair open market.
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by hnracer 6y ago
I share your view. My strategy in university was to memorize as much as I could going into the exam and then garbage collect 1 day later and be left with nothing. This was an arrogant waste of time, but my priorities at that time were to si
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by hnracer 6y ago
At least in my cohort and my university, cheating was endemic and done by almost everyone on every assignment. Not cheating was a significant disadvantage. I didn't ever hear of anyone getting caught which I find astonishing, since I&#
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by hnracer 6y ago
I think we are mostly in agreement. I agree that there are societal factors as well and that these are not good and we should work to address them.
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by hnracer 6y ago
It's good to keep in mind that not all medical services are price inelastic in the sense that ambulance costs or emergency hospital visits are. GP visits/non-emergency general surgeries/general medicines - just like food, are
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by hnracer 6y ago
Agree that this is an issue

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