fractionalhare

12 ms·

61.
by fractionalhare 6y ago
I know what they're saying, I even reiterate it in my second sentence. My point is that doesn't protect you from the distribution changing, which is a problem that applies to machine learning and classical statistics. This is in s
62.
by fractionalhare 6y ago
> In ML (or more specifically deep learning), we make no distribution-based assumptions, other than the fundamental assumption that our training data is "distributed like" our test data. Okay, so that's about the same as
63.
by fractionalhare 6y ago
You could actually say IPO pops (and drops) are a temporarily more extreme price discovery process when a company transitions from relatively inefficiently traded private entity to a more efficiently traded public one.
64.
by fractionalhare 6y ago
They're actually hard capped at $10B, up from ~$5B a decade or so ago. But you're right, they are thoroughly capacity constrained. Pretty typical for quant strategies in general. Based on what I see from quant prop trader friends
65.
by fractionalhare 6y ago
It's true Buffett had an average annual return of 20.5% between 1965 and 2018. Soros had an average annual return of 32% over about the same time period. Both of them have been underperforming in the last decade or so. Medallion is sti
66.
by fractionalhare 6y ago
Medallion is far beyond 15%/year. Between 1988 and 2018 they had an average annualized return of 39.1%. And the variance is remarkably low: since 1990 there has never been a year with less than a 20% return. These figures are net. And
67.
by fractionalhare 6y ago
The author's thesis is that the "hard stuff" decreases over time, and gets commoditized as the field matures. My experience aligns with this view. For example: you can theoretically do better than a seasonal ARIMA model for t
68.
by fractionalhare 6y ago
> Like foam rolling, or running on your toes instead of your heels. These things have been studied numerous times. Head over to r/AdvancedFitness or r/AdvancedRunning and you'll find people seriously disseminating acacem
69.
by fractionalhare 6y ago
Love awswrangler. I use that over boto whenever I have the opportunity.
70.
by fractionalhare 6y ago
I can see a lot of potential in Go for data engineering specifically, yeah. Those would probably be some very stable and performant ETLs. And the concurrency and network primitives would make it easy to develop libraries like Prefect/A
71.
by fractionalhare 6y ago
DataFrames? It doesn't even seem to have specialized array primitives like Series or NumPy. What the heck?
72.
by fractionalhare 6y ago
Yeah I'm confused. The only "data science" I can see here is the the title. How is list comprehension a data science primitive? How did this get over 4,000 stars on GitHub with a glaring lack of basic data science functionali
73.
by fractionalhare 6y ago
> people that seem to base their identity and life around work, and the ones that actually are well rounded people that don't care about which coffee grind size you use on your morning crap of joe. These don't seem related. I
74.
by fractionalhare 6y ago
If you're competing in a winner-take-all market, it is very difficult to compete without shooting for domination. I don't know if digital ride hailing is a winner-take-all market, but there's pretty compelling evidence it cou
75.
by fractionalhare 6y ago
The commenter is not saying literal taxi dispatch is complicated. But that's an extremely reductive view of what Uber is. Their actual point is 1) that it's a complex problem to make it a programmatic market which functions nation
76.
by fractionalhare 6y ago
Did we read the same comment? They all look like useful features which deal with the complexity of things external to Uber (like regional payment regulations).
77.
by fractionalhare 6y ago
I guess, but even if it's imperfect it still seems better than the status quo.
78.
by fractionalhare 6y ago
I don't agree. It is trivial to spread bullshit and nontrivial to show that it's bullshit. Your philosophy allows misinformation to spread because of how much harder it is to refute than create.
79.
by fractionalhare 6y ago
I think focusing on the literal semantics of the first sentence rather than taking the blog post holistically is too harsh. Obviously it's still a problem; they are communicating that they're working on it.
80.
by fractionalhare 6y ago
A principled commitment to fact-checking is more important than whether or not any particular fact-check is ultimately correct. Mistakes happen. If the effort results in more good calls than bad calls, it is a good initiative overall. What
81.
by fractionalhare 6y ago
But Facebook can at least work towards it, even if you're pessimistic they'll solve it. That's what this blog post is about.
82.
by fractionalhare 6y ago
Online discourse would be vastly improved if everyone meticulously cited peer reviewed papers and used no other substantiation. It still wouldn't be perfect, but at least there'd be a commitment to rigor. The current status quo i
83.
by fractionalhare 6y ago
The research in this field proceeds under the umbrella and framework of physics, yes. But it's not clear that it's possible to scale up to the number qubits required do anything nontrivial. It's plausible there are hard engin
84.
by fractionalhare 6y ago
Sure. I wouldn't be surprised if they have better features along specific dimensions. I'm talking about monetizable market share and revenue.
85.
by fractionalhare 6y ago
> Everything? I thought it was supposed to be Git hosting, but I'm not even sure anymore. They're losing to GitHub. While they advertise that they have 2/3 of the self-hosted git server market share, they just barely hav
86.
by fractionalhare 6y ago
RenTech finished the year up over 70% in Medallion, however.
87.
by fractionalhare 6y ago
Your cited source also shows 10.9% more hours worked and only 0.8% more hourly compensation (and -1.6% real compensation) comparing Q4 2019 to Q4 2020. Does the data show whether people are more productive because they are happier living mo
88.
by fractionalhare 6y ago
The author speculates that this is a direct side effect of Google searches being monetized by ads, and therefore targeting multiple searches. I don't think that's the case. I think this has more to do with the fact that Google now
89.
by fractionalhare 6y ago
I can see and read the JavaScript source code if I intercept the requests! Please pay me $100.
90.
by fractionalhare 6y ago
I don't know...what of it? I still like people, I still like things. Thumb and heart icons on social media haven't changed how or what I like. Semantically, I generally understand a person who says they "liked" a thing t

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