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mathteddybear

Re:The collapse of the econ PhD job market on Friday October 03, 2025 @05:42PM (#45468146)
yeah, we called that data mining, decision systems, and whatnot... mapreduce was as fresh and hot as the Paul Graham's essays book... folks were using Java over python, due to some open source library from around the globe...

essentially, provided you were at a right place in a right time, you could get a BSc in it

Re:OpenAI claims Gold-medal performance at IMO 2025 on Saturday July 19, 2025 @04:06PM (#44618878)
Yeah, no - quite a chunk of IMO problems are planar and 3d geometry, and you don't really do that at university level (exception: specializing in high school maths didactics)
Re:Show HN: Ten years of running every day, visualized on Monday July 14, 2025 @04:09PM (#44564679)
The cheat code is to substitute it with something like rollerblading. But you'll need to practice it ~3x longer each time, and aint' nobody on HN got time for that.
It is 'incredibly efficient' because it is incredibly good at predicting clicks, conversions, or even conversion values. Which in turn makes it efficient. Sure, there is something called "auction" there, but Sothesby's or Tattersalls generally don't have buyers bidding based on what some machine-learning prediction AI computed in a jiffy (or maybe they do these days, who knows).
Re:Has the Decline of Knowledge Work Begun? on Thursday March 27, 2025 @02:30PM (#43496543)
Yeah, but this convenience goes well beyond the "one payment button".

If you order food directly, you won't have the delivery tracking on the map. Even within the app, if the restaurant provides their own couriers, you lose the visibility and arrival ETA info.

And 15% might look impressive, but if you are getting your food from a delivery app, you probably don't care that much about food price in the first place.

Yeah it's kind of a different standard

There is a section 2.1.3 "Online platform studies versus lift tests" in the article. For the marketing tools purpose, you can use either (or some mixture of both). There are pros and cons to the choice.

It is computer science folk-lore. Pretty sure I read about it in some popular computer magazine in 90's.
Re:I Quit Google to Work for Myself (2018) on Sunday November 10, 2024 @11:37AM (#42101051)
In my humble experience some time between 2006-8 and 2013. Unless they hid it that well from us interns.

It's not the only thing that changed. Good thing, my manager joined Google back in these older years, so, for instance, he could say to me that I was "expected to rise to L5" in such a way that I knew it wasn't enforced in our org.

The values of G1 and G2 are computed by a complex algorithm, however, that algorithm is agnostic of the position of the ad in the auction. Unlike the constant factors (1+a) and (1+b) applied on top of that.

Other companies in that auction could apply this kind of optimization, too. Perhaps the improvement is not as large for smaller participants, and so, not worth looking into.

No, project Bernanke wasn't about that.

At that time, the exchange was a second-price auction, and all parties could submit up to two bids (presumably, the top two bids from their own collection of advertisers). Let's call the Google bids G1 > G2.

Since Google already implemented automated bidding strategies, they would submit to this auction (1+a)G1 and (1+b)G2 for certain fixed small value parameters a,b. Project Bernanke computed on historical data the optimal values of these a,b parameters.

Cue government discovery misunderstanding documentation

Re:A Weekend at the Immersion Larp Festival on Wednesday August 28, 2024 @06:21AM (#41377948)
You could make it a dating sim. Less drama than in the "Wild Hunt" movie, please.

Generally speaking, we have all kind of LARPs in the sword-and-sorcery scene

- battle LARPS - no story, just hit the participants belonging to the other faction, preferably in formations. This ranges from smug reenactment-quality groups, like Warhammer Fantasy fans in Europe, to groups that retain fantasy-themed clothing the way sports such as tennis have a specific proper attire, like Belegarth society in USA.

- (story-rich) LARPS - these originated with to "let's play D&D but in real life" and some of them even kept the trappings of the original, such as "levels" or "character classes"; some of them drop most of the gamey aspects, becoming more or less like those "chamber" LARPs mentioned by the OP (only in a fantasy setting; though, a Dune LARP could be a thinly-veiled middle-east, for all I know)

Re:Ask HN: What are you working on (August 2024)? on Sunday August 25, 2024 @04:27AM (#41345559)
When I was in FAANG I picked up Skyrim modding as a hobby, and this year I'm working on monetizing it, in style.
Re:Postmortem of my 9 year journey at Google on Sunday August 18, 2024 @06:23AM (#41281440)
can't speak for others, but BCID is this thingy: maybe your team has some petabytes quota in the datacenter, but as a software engineer, you no longer can test your number-crunching data-processing program by running it there, not before checking it into repository. Instead, you'll have to check it in, and then run, and then check in the fixes you found
Re:Panic at the Job Market on Thursday July 18, 2024 @01:18AM (#40992706)
These are product-oriented tech companies, while the contracting pertains to e.g. custom software development.

What follows is that these companies have enough revenue to afford FAANG salaries. And FAANG employees in foreign countries have their salaries computed by HR spreadsheets, with the goal of making a family-oriented employee quality of life on par in every country. According to levels.fyi, in Poland Google pays $96.7k to SWE L4. Sure, those salaries were often set when the particular office location was created, and inflation happened since, unevenly. So you might find even higher reported salary from tech companies that opened their Warsaw office somewhat recent.

So, even the entry level SWE earn more than custom software contractors. Beyond that, there's more. With their skillset, 10x employees could leave and form start-ups. To prevent that, the FAANG have a career ladder that make 10x employees earn 10x more every 10 years. Provided they jump the promo hoops.

Again, the tech companies afford that, because their revenue comes from tech products

That isn't to say that as an SWE in these companies you couldn't work on a CRUD database project for some internal website. Perhaps you can get promoted doing that, even though it has more in common with custom software development.

Re:Ask HN: What was your most humbling learning moment? on Monday June 03, 2024 @03:21AM (#40560162)
Before I understood recursion, to solve Hanoi towers I looked back at the earlier positions of the output buffer
Re:How Failure Has Made Mathematics Stronger on Thursday May 23, 2024 @03:02PM (#40458565)
Creating videogames can be nerd sniping, too
Re:Building an AI game studio: what we've learned so far on Wednesday May 22, 2024 @09:26AM (#40440683)
As someone who moves out of Bay Area back to home country and looks forward to spice up early retirement with small-time gamedev, I find the economics of indie development not that simple.

Generative AI notwithstanding, in order to make a game you will hire some artists, and the best artists are "getting paid in USD" already, to use the words from this discussion thread. They may be talent living locally, but they work on-line, too.

Thus, successful indie games usually have budgets "in USD" and sales "in USD". I mean, making one is still a first world problem.

But it's not a thesis of Die Deutschen Wissenschaftlichen Bibliotheken nach dem Krieg, it's just a quote, and it does not support that "most of the knowledge lost in the war in todays Poland was actually knowledge of german culture and heritage", this is out of the scope of Georg Leyh work
Re:How to graduate your PhD when you have no hope on Sunday March 31, 2024 @01:44PM (#39886295)
Well, if it is any help, the guy who made this forum once published a book with a collection of his essays. Various topics, including how to become a rich person, in what ways graduate studies are helpful in creating software. Might make sense of putting worldly things in this perspective.
Bill Lewis, I presume, called it more or less like that

https://arxiv.org/abs/cs/0310016

https://www.youtube.com/watch?v=xpI8hIgOyko

Soon later, "debugging backwards in time" morphed into "time-travel debugging"

Re:What's Going on at Google? Massive Search Engine Spam Attack on Saturday December 23, 2023 @06:27AM (#38743420)
Try reverse image search for a cartoon from DeviantArt, 99% links in the results redirect you to unrelated pr0n sitez. We're talking that kind of spam
Re:$10M AI Mathematical Olympiad Prize on Monday November 27, 2023 @12:38PM (#38435334)
They don't need to win IMO, they need to get a gold medal. I got a gold medal at IMO solving 4 out of 6 problems

I don't want to speculate, but it's not inconceivable that this will be achieved by AI within the future lifetime of XTX

Re:Reflecting on 18 Years at Google on Thursday November 23, 2023 @06:22AM (#38391623)
An oddly dramatic response to a blog post of someone working on a, what is this flutter, some frontend framework library?

Counterpoint - since I left Google, little birds told me good things happened, for example, cranking down on the travel expenses (that higher-ups used to spent with little to none oversight)

Yes, on Desktop users tend to switch to Google. Google could end up benefiting financially from the court ruling these deals illegal. Until the court does so, Apple sells advertising space on their new iPhones in the form of the default search engine choice, and Google offered to pays for this advertisement the most, because they have the biggest gain on such advertisement.
USD exchange rates affects the earning statements more than ChatGPT (which has about 1.5% queries of Google search iirc)
But that's not what the witness expert claims. He said "squashing".

Google used a second price auction, and also it ranked ads in the auction by bid multiplied by click through rate. Squashing is something like ranking ads by (bid * power(ctr, gamma)) where 0 < gamma < 1. In auctions where the 3rd bid (or lower) wins under the (bid * ctr) rank switching to squashing may increase revenue, because the actually higher bid will win the auction.

This trial is antitrust, not fraud, so Google lawyers will be rebutting it only to the point it helps them. And they will try to keep it sealed anyways. Since it doesn't seem that either party is willing to describe the auction algorithmically, we may never get to learn it, apart from reading Albert Cory substack

In particular, the linked article mentions 'squashing', and a quick research finds https://www.theregister.com/2010/09/16/yahoo_does_squashing/ where it is mentioned that ads are ranked not by bids, but rather by "bid multiplied by click probability". In the ideal world, the first question to the auction expert should be "what price is charged, if due to click probability, the second bid ad wins the auction?"

Professor Whinston didn't work at Google, did he? He just makes his opinion based on some emails found in the discovery?

For all we know, it is equally plausible that Google at some point launched a new prediction model, and in a traffic experiment it showed up the following stats: increase on campaign average cpc price, decrease on average auction discount (or whatever the metric for the gap to 2nd bid is called), and no harm to conversion cost. Team manager reported the metrics highlights to their higher ups. Emails found in discovery... ends with guys on HN throwing fraud accusations, pretty easy.

Too bad the DOJ attorney does not "grill" over that. Instead, quote the Reuters article

> Dahlquist asked Juda if they had introduced changes to ad sales in a way that raised the cost-per-click by a consumer that advertisers pay. "I believe that's fair," said Juda.

> But Wendy Waszmer, a lawyer for Google, asked Juda on Wednesday afternoon on if there were ways that his ads quality team could raise prices unilaterally. "No," Juda responded.

That's an interesting remark, for your profile links to Google Cinema Club, among other things, so I take it you're not based in China yourself.

Regarding the article and the auctions, I recall the internship at Google in the noughties. There was an overview talk on search and ads. One thing that was clear back then, the ads are not ranked by the bids alone. They are ranked by bid multiplied by ad score. As the ad gets displayed more and more, the score tends to be based on the click-through rate of the ad. That way, a bad ad that does not get clicked on effectively cannot be forced to display by bidding high.

On the other hands, in most reporting on these antitrust cases, folks read "auction" and the picture they have in mind is like an art auction, the highest bidder wins. Then they report on obvious things as if this was some revelation of manipulation.

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