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saghm | on: Our software engineering interviews are changing a little
This is the third Jane Street-related thing I've seen on here this week after not seeing much about them that I can remember any time recently beforehand I'm aware of their use of OCaml and probably do other things that might be of interest to the HN community, but it seems like a lot in a very short time out of nowhere. Is there some sort of marketing push or something going on?
spongebobism | parent | next
According to algolia, there were 57 posts with jane street somewhere in the title or url in the last year, so a bit more than one per week. For a Poisson distribution with rate = 57/52, P(X >= 4) ~= 2.5%. So there should on average be ~5 weeks with 4 or more jane street related posts at that rate.

Probably just random fluctuation.

stuxnet79 | root | parent | next
This is the kind of pedantry I come into HN for. Poisson is such an under-utilized distribution for these kinds of phenomena.
tmoertel | root | parent | next
> Poisson is such an under-utilized distribution for these kinds of phenomena.

Yeah, Poisson distributions show up everywhere if you are paying attention. You can even use the theory as the basis for a fast, elegant algorithm to take parallel, weighted random samples. You can even do it in SQL!:

    SELECT *
    FROM Population
    WHERE weight > 0
    ORDER BY -LN(1.0 - RANDOM()) / weight
    LIMIT 100  -- Sample size.
For more on the Poission connection, see: https://blog.moertel.com/posts/2024-08-23-sampling-with-sql....
8note | root | parent | next
possion distribution is what i learned in university for describing this kind of event?

the book is underutilized?

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Karrot_Kream | root | parent
Isn't it a natural modeling choice? If your events arrive on exponentially distributed deltas, you end up having poisson arrival counts.
saghm | root | parent | next
I appreciate a data-focused response here! What I'm more curious about is how many of these reached the front page. My impression is that the rate of how often they reach the front page is probably a good amount lower than once a week, which I think makes the question of whether this is a coincidence or not more reasonable.
seizethecheese | root | parent
Except I'm pretty sure there are three from the last 24 hours. Two live on the front page right now and one about some almost flooding just dropped off.
MeetingsBrowser | parent | next
Probably a self fulfilling prophecy.

Jane street news made it to the front page a couple times and got a lot of attention.

Now more people are recognizing the name and upvoting other Jane Street posts.

chamomeal | parent | next
They’re pretty techy, idk why they’re showing up recently though.

Also one of my absolute favorite programming talks ever was hosted by Jane street:

https://www.janestreet.com/tech-talks/algorithm-for-precisio...

It’s like half talk, half story. Got me super interested in logic programming, and minikanren in particular.

myrmidon | parent | next
I'd lean towards no on that. Might be a bit of a Baader-Meinhof thing. They've been mentioned/discussed on HN pretty regularly for years:

https://hn.algolia.com/?q=jane+street

vrmiguel | parent | next
People like to talk about Jane Street because it is this Very High IQ™ company that pays people astronomical salaries and is extremely hard to get into.

They don't have to do marketing, though. It's not like they sell anything to Hacker News readers, they make their money trading finantial assets

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{"deleted":true,"id":50468172,"parent":50468078,"time":1794494816,"type":"comment"}
dominotw | parent
> We know this sounds vague,

ok thanks for this slop then. Dont see why this stupid article is on frontpage.

They seem to belive in 'organic' marketing like doing a fake podcasts on dwarkesh. So maybe they have some bots upvoting their name.