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pvankessel commented on Being poor vs. being broke   blog.ctms.me/posts/2025-1... · Posted by u/speckx
charcircuit · a month ago
>This isn't a math problem.

It's an optimization problem, which I would consider a category of math problems. Not wanting to perform a solution or not being able to figure out a solution, or know how to find someone to solve it for them is a mind problem.

pvankessel · a month ago
This view of the world puts everything on the individual. It might be worth reading up on structuralism to balance that perspective out a bit. I'm somewhere in the middle of the two extremes myself, but surely one must acknowledge that there are larger systems at play that can constrain an individual's ability to "optimize".
pvankessel commented on Tell HN: Mechanical Turk is twenty years old today    · Posted by u/csmoak
social_quotient · a month ago
I’ve run millions of jobs on MTurk.

For a major mall operator in the USA, we had an issue with tenants keeping their store hours in sync between the mall site and their own site. So we deployed MTurk workers in redundant multiples for each retail listing… 22k stores at the time, checked weekly from October through mid-January.

Another use case.. figuring out whether a restaurant had OpenTable as an option. This also changes from time to time, so we’d check weekly via MTurk. 52 weeks a year across over 100 malls. Far fewer in quantity, think 2-300. But it’s still more work than you’d want to staff.

A fun more nuanced use case: In retail mall listings, there’s typically a link to the retailer’s website. For GAP, no problem… it’s stable. But for random retailers (think kiosk operators), sometimes they’d lose their domain, which would then get forwarded to an adult site. The risk here is extremely high. So daily we would hit all retailer website links to determine if they contained adult or objectionable content. If flagged, we’d first send to MTurk for confirmation, then to client management for final determination. In the age of AI this would be very different, but the number of false positives was comical. Take a typical lingerie retailers and send it to a skin detection algorithm… you’d maybe be surprised how many common retailers have NSFW homepages.

Now some pro tips I’ll leave you with.

- Any job worth doing on mturk is worth paying a decent amount of money for.

- never runs. Job 1 tile run it 3-5 times and then build a consensus algo on the results to get confidence

- assume they will automate things you would not have assumed automated - And be ready to get some junk results at scale

- think deeply on the flow and reduce the steps as much as possible.

- similar to how I manage Ai now. Consider how you can prove they did the work if you needed a real human and not an automation.

pvankessel · a month ago
The automation one is so true! When I first deployed a huge job to MTurk, with so much money on the line I wanted to be careful, and I wrote some heuristics to auto-ban Turkers who worked their way through the HITs suspiciously quickly (2 standard deviations above the norm, iirc) - and damn did I wake up to a BUNCH of angry (but kind) emails. Turns out, there was a popular hotkey programming tool that Turk Masters made use of to work through the more prized HITs more efficiently, and on one of their forums someone shared a script for ours. I checked their work and it was quality, they were just hyper-optimizing. It was reassuring to see how much they cared about doing a good job.
pvankessel commented on Tell HN: Mechanical Turk is twenty years old today    · Posted by u/csmoak
pvankessel · a month ago
I used MTurk heavily in its hey-day for data annotation - it was an invaluable tool for collecting training data for large-scale research projects, I honestly have to credit it with enabling most of my early career triumphs. We labeled and classified hundreds of thousands of tweets, Facebook posts, news articles, YouTube videos - you name it. Sure, there were bad actors who gave us fake data, but with the right qualifications and timing checks, and if you assigned multiple Turkers (3-5) to each task, you could get very reliable results with high inter-rater reliability that matched that of experts. Wisdom of the crowd, or the law of averages, I suppose. Paying a living wage also helped - the community always got extremely excited when our HITs dropped and was very engaged, I loved getting thank yous and insightful clarifying questions in our inbox. For most of this kind of work, I now use AI and get comparable results, but back in the day, MTurk was pure magic if you knew how to use it to its full potential. Truthfully I really miss it - hitting a button to launch 50k HITs and seeing the results slowly pour in overnight (and frantically spot-checking it to make sure you weren't setting $20k on fire) was about as much of a rush as you can get in the social science research world.
pvankessel commented on Rock Tumbler Instructions   rocktumbler.com/tips/rock... · Posted by u/debo_
EvanAnderson · 2 months ago
Lots of comments are talking about how loud rock tumbling is. I have an interest and space in my basement but I'm reticent to pull the trigger without knowing if it's going to be intolerably loud upstairs. Does anybody know how many dB the process actually generated?

Edit: Finally got to a PC to do some search-engine investigation and found this: https://rocktumbler.com/tips/how-much-noise-does-a-tumbler-m...

pvankessel · 2 months ago
I got this one a few months ago and have been running it in my basement directly under my living room, separated only by the floor and a bit of insulation. Can't hear it at all. It's been working well and it's a fun low-investment hobby. I live on a glacial moraine so there are lots of unique rocks in my backyard, and my son enjoys digging for them. https://a.co/d/4HSnVVX
pvankessel commented on If the University of Chicago won't defend the humanities, who will?   theatlantic.com/culture/a... · Posted by u/atmosx
Jensson · 2 months ago
You do realize that an engineering degree is better to learn how to learn than a typical liberal arts degree? Read academically adrift, this is well studies.

In general the more difficult your degree the better it teaches you how to learn, because you are forced to learn more difficult stuff.

pvankessel · 2 months ago
Hard disagree. I gave up a top-10 engineering scholarship and switched to liberal arts largely because my entire curriculum was predetermined in the former. Five courses in calculus and two slots for electives in your entire undergraduate schedule - that doesn't teach you how to think. Political philosophy, symbolic logic, comparative history, econometrics - having the freedom to explore and dabble and push yourself into new ideas instead of being fast-tracked into a pipeline, that's how you learn how to learn. And the "difficulty" is entirely what you make of it. Sure, if you show up to college and want to major in anthropology and put no effort in, you get nothing out. But I saw very quickly that with absolute unfailing effort applied to my engineering degree, I was still going to get exactly one and only one thing out of it. The liberal arts gave me a cornucopia of possibility. I've gone on a human trafficking sting op with the FBI, I've presented my research at the White House, I've been cited by the Pope - that's all wild shit that an engineering degree never would have enabled. Breadth of learning and soft skills matter. I'd be a shell of a person today if not for my liberal arts education. I owe everything to it, and the constant condescension towards non-STEM education in tech would frustrate me more if I didn't run laps around my peers.
pvankessel commented on If the University of Chicago won't defend the humanities, who will?   theatlantic.com/culture/a... · Posted by u/atmosx
DaSHacka · 2 months ago
> Except many STEM graduates are having a harder time finding jobs right now than liberal arts and humanities majors: https://www.newyorkfed.org/research/college-labor-market#--:....

Is that in both respective fields of study, though?

It aplears liberal arts/humanities majors are much more willing to work non-related jobs where their STEM collegues more strictly pursue relevant titles.

https://www.forbes.com/sites/christopherrim/2023/01/11/the-p...

pvankessel · 2 months ago
Well that's kind of my point - liberal arts and humanities set you up with a very versatile baseline. With a proper education in those disciplines you learn how to think, and that's applicable to a wide range of fields. The woman I dated in grad school at UChicago studied war history and wound up being an analyst for a prominent wine auctioneering firm as a key researcher. My master's thesis was on the meaning of life, and now I'm running data science at a non-profit. So many of my fellow liberal arts grads have gone on to do incredible things entirely unrelated to their chosen subject of study.
pvankessel commented on If the University of Chicago won't defend the humanities, who will?   theatlantic.com/culture/a... · Posted by u/atmosx
LudwigNagasena · 2 months ago
It’s sad that many people need to spend years on liberal arts education to learn to learn independently. Where has our society failed that 11 years of schooling and upbringing can’t provide that?
pvankessel · 2 months ago
Oh I agree with you on that wholeheartedly. I think our society would be substantially healthier if we required civics, philosophy, economics, etc in high school. But if we're already struggling to have evolution taught in schools and we have state boards of education removing references to the slave trade and founding fathers from history curriculum (https://www.theguardian.com/world/2010/may/16/texas-schools-...), expanding liberal arts in public education is a non-starter. Hell, half the country would love to see it wiped from post-secondary education. Best I figure we can do at this point is defend the idea itself to the extent we can - for instance, in Hacker News threads where the liberal arts are being dismissed as an unnecessary lesser-than academic pursuit.
pvankessel commented on If the University of Chicago won't defend the humanities, who will?   theatlantic.com/culture/a... · Posted by u/atmosx
umeshunni · 2 months ago
Probably a good thing considering the decline of science and tech in the US and Western world in general. A casual visit to any major labs and observing their demographics makes it clear where all the talent in STEM is being created. It's better to redirect that funding towards building the next generation of scientists and engineers rather than purple haired lib arts baristas.
pvankessel · 2 months ago
Except many STEM graduates are having a harder time finding jobs right now than liberal arts and humanities majors: https://www.newyorkfed.org/research/college-labor-market#--:....

For what it's worth, I have enjoyed a very successful career in data science and software engineering after taking some AP STEM courses in high school, followed by three liberal arts degrees. Many of the best engineers I've known have had similar backgrounds. A good liberal arts education teaches one how to think and learn independently. It's not a substitute for a highly-specialized education in, say, molecular biology, but it provides a really solid foundation to easily pick up more logic-derived technical skills like software development. It's also essential for an informed citizenry and functional democracy.

pvankessel commented on Making Minecraft Spherical   bowerbyte.com/posts/block... · Posted by u/iamwil
cyptus · 3 months ago
thats why a liquid core is needed in the matrix
pvankessel · 3 months ago
Curious about this, is there actually a canonical explanation in the trilogy somewhere?

u/pvankessel

KarmaCake day152August 14, 2018
About
Senior director of data science and AI at WorkMoney, a non-profit dedicated to helping working and middle-class Americans. Former senior researcher at Pew Research Center.
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