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alexbeloi

756 karma · joined May 20, 2016

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alexbeloi··on Ask HN: Solo app devs, how do you do user testing?
This is a great idea to gather problems/questions. There's no substitute for scaled A/B testing, and finding worthwhile things for testing can be the hardest part.
alexbeloi··on World Airports Voronoi (2014)
That's really interesting. Do you think it could be related to the effect of map projection biases? Is that a thing dates far enough back to affect settlement decisions?
alexbeloi··on Don’t Fear the Robots: Why Automation Doesn’t Mean the End of Work
Lots of things should be one way and aren't. See racism. The point of these discussions is proposing on the how of making should into does.
alexbeloi··on Don’t Fear the Robots: Why Automation Doesn’t Mean the End of Work
>You're not going to become an entrepreneur with $20k since that won't pay for office space, equipment, etc.

Not if you spend it on office equipment. The $20k buys you $20k worth of free time in your life to work on your personal projects, ideas, hobbies without your life falling apart as a consequence.

That's enough time to set up a small leather-working shop in your garage, or build an app, or start a podcast, or write a few chapters of a book.

alexbeloi··on Making Pulled Pork with React Native, Expo, and Express
Agreed, I was only addressing the part about collagen breakdown. Pressure cooking makes most sense when you don't change the medium of cooking, as you say, boiling bbq doesn't make much sense. Otherwise the principal is the same, apply pressure to prevent water from turning to vapor. When boiling a stew, this lets water reach higher temperatures without evaporating (breaks down collagen faster), in air convection it prevents moisture from evaporating and cooling/drying the food.
alexbeloi··on Making Pulled Pork with React Native, Expo, and Express
What you need to break down collagen to gelatin is just energy. Energy = heat * time, so you can break it down in less time by using higher heat differential (higher temperature), which is exactly what a pressure cooker does.

I have a stew that would normally take 3 hours simmering on the stove that can be done in 20 minutes in a pressure cooker.

alexbeloi··on Through-Wall Human Pose Estimation Using Radio Signals
I hope you're not doing anything illegal, citizen.
alexbeloi··on Psychedelics could heal brain cells in people suffering from depression: study
Can I ask what psychedelics you're referring to?
alexbeloi··on Psychedelics could heal brain cells in people suffering from depression: study
You're probably thinking of MDMA, which releases serotonin. LSD doesn't release seratonin, but it does have similar shape to serotonin and therefore can trigger the same receptors that serotonin does.
alexbeloi··on DeepMind: First major AI patent filings revealed
Somebody at Alphabet or DeepMind decided that the research they produce wasn't tangible enough to justify their cost, so they have to demonstrate 'real business value' of their research. For bottom line business people, this means patents.

This is just speculation on my part, but from my experience, this is how/why this happens in a large org.

alexbeloi··on There Are No Laws of Physics, There’s Only the Landscape
There may as well be no territory, the only thing relevant is the map and how it reacts to probing.
alexbeloi··on Hello, GitHub
You and GP are talking about different things. As you say, Gitlab.com has been deteriorating and has continual performance issues, however Gitlab Core (the OSS project) has made big strides in the last year in adding features like excellent CI/CD integration, issue boards, merge request templates, web based IDE for quick edits, etc. For teams of people working together, these tools are really useful and important, less so for big community or solo projects.

Unlike Github, you can host Gitlab on your own server, to get whatever performance you're willing to pay for.

alexbeloi··on Our machine learning and NLP journey
>I thought you were talking about classification of these tweets so that politicians know what their followers are talking about. Sentiment analysis is a very small part of what we do and as you said there are tons of examples on web that use Twitter's data in their model.

I was, I was guessing that you had an general topic/clause segmentation model + sentiment analysis, sounds like you're saying the topic/clause (or issue) segmentation model is pretty domain specific, so what new datasets you'd need to for political issues build is beyond me, but I think it'd be well worth it. Connecting politicians and constituents is a pretty universal need.

alexbeloi··on Our machine learning and NLP journey
>Are you aware of any such corpus?

I am not aware of a corpus for political sentiment specifically. There's a general twitter sentiment dataset[0], the link appears to be broken but it's what everyone cites, not sure why it's down.

This paper[1] uses tweets and emoticons in the tweet as a soft label for sentiment, there's obvious issues with that, but it's a cheap way to get lots of noisy labels.

[0]: http://www.sananalytics.com/lab/twitter-sentiment/

[1]: https://www.aaai.org/ocs/index.php/SSS/SSS13/paper/download/...

alexbeloi··on Our machine learning and NLP journey
Have you considered using this for analyzing feedback for politicians? They have similar pain points in understanding what feedback from constituents is a general problem vs isolated concern. Maybe through twitter data (as PoC) and then actual emails from constituents.
alexbeloi··on Thousands of AI researchers are boycotting the new Nature journal
>What am I missing about the benefits of the status quo keep it so entrenched?

The entrenchment is due to perceived (and cultivated) prestige, less so about tangible benefits. Prestigious journals have good brand value, they spend money cultivating it and they extract earnings from it.

Researchers and administrators trade on journal brand value for career advancements. They benefit from a highly prestige-stratified journal catalog as a tool for differentiating themselves from their peers, it's much easier to justify a promotion based on 'X publications to prestigious journal A, B, C' than 'bunch of people in the community think this is a great result', especially to a non-expert.

alexbeloi··on GDPR for lazy people: Block all European users with Cloudflare Workers
Presumably you are also required to delete it from any training data for an ML model, does that make any models trained on previous set of data illegal to use?
alexbeloi··on Regional Persistent Disks on Google Kubernetes Engine
Somebody on HN once mentioned maintaining duplicate/redundant deployment scripts for two different cloud providers. If one goes down you 'just' redeploy onto the other cloud provider. So you would be down for only as long as it takes to run a deployment and update dns.

Minimal additional recurring costs:

* duplicate storage (e.g. GCS and S3) * engineering cost of maintaining/testing multiple deployments (non-trivial)

This feels very much like a five 9's level optimization that I would not find easy to justify.

It might also be worth investigating how Netflix handles this issue.

alexbeloi··on QuitGenius (YC W18) raises $2M to help people quit smoking
This seems to me like this should be a non-profit. This company's revenue growth is misaligned with their customer's goals. Total success would be for the company to have 100% churn from successful rehab, the better they are at what they do the higher their churn rate should be. I guess this is a common issue in the health industry, an area that I haven't the slightest clue about.
alexbeloi··on Ethiopia is now Africa's fastest growing economy
>The people don't get the food produced on their farms because they can't afford the food. They can't afford it because the Ethiopian economy is in its infancy. Sure it doesn't feel right when the food is being shipped out of the country, but that's how capitalism works.

>If Ethiopia plays by the rules of the game for the next few decades then their economy will grow the problems we see in today's Ethiopia will be diminished.

If someone came to you with this proposition, that your region would grow in a few decades (maybe in time for your grandchildren to benefit) while you watch your neighbors starve and the profits and food from your countries land is shipped overseas for the majority of your adult life, I hope you would do the sane thing and tell that person to fuck off.

The "rules of the game" are "get yours, and get it now by whatever means capable", which is what countries with capability do and will continue to do. If their actions result in any benefit to the world outside their borders, it is incidental.

alexbeloi··on Show HN: Simple and comprehensive tutorials in Deep Learning using TensorFlow
The dirty secret of machine learning is it's 20% model building, 80% plumbing.
alexbeloi··on YouTube Music, a new music streaming service, is coming soon
Despite the existence of Spotify, Pandora, Google Music, etc. There is a huge group of people (among the largest on youtube) that listen to music using youtube playlists.

This was definitely true when I was in college a few years ago. I think the main reason is that (partly thanks to copyright violations) YouTube a very reliable source for finding any song you're looking for, from ultra-popular to my-buddy-made-a-track-on-ableton-once. New singles will always hit youtube, but won't always hit every streaming service, but this has gotten better in recent years.

IMO, record studios aren't satisfied with the (relatively tiny) revenue from X million views on their youtube videos, it started out as a marketing channel for them, but now they believe the play-on-demand nature is cutting into their earning (it is). From YouTube's end this is a move to appease record studios concerned and simultaneously extract more money from an existing user base.

alexbeloi··on Emails Show FDA Chemists Have Been Finding Glyphosate in Food
As you say, a perfect solution might be a redistribution of global food supply to allocate more to starving regions. I will support you in 'fighting the good fight'. To me, the pragmatic solution is to grow more food with the same resources that you have. The only hyperbole is in equating not feeding someone with starving them.

To equate GMO tech with the megacorps that profit from them is a strawman argument.

alexbeloi··on Asciinema – Record and share your terminal sessions
Super cool!

IMO, the killer feature is how easy it is to embed recordings into your project readme or issues/comments in markdown/html.

alexbeloi··on Emails Show FDA Chemists Have Been Finding Glyphosate in Food
>What about GMOs? What is the harm in not using them?

lower crop yields, more starvation, more malnutrition

alexbeloi··on Ask HN: How to deal with a dysfunctional relationship with a 50/50 co-founder?
It sounds like the core problem is that you're unhappy about how the division of roles was made. Is it that your co-founder isn't contributing as much as you to the company or that he doesn't respect your and others contributions? or both?

You say each of you was responsible for one side of the business, did you agree on this split together or did it just happen? when was it apparent that you weren't happy with how the roles were split?

If you could go back in time, would you rather both of you contributed on technical work? Do you feel it's unnecessary to have your co-founder dedicated to sales? Are the main problems the company is facing technical, sales or something else?

alexbeloi··on Subscription Hell
This is what Blendle offers according to u/ChuckMcM, price per article decided by publisher, ranges from 9c to $1.99, average 25c.
alexbeloi··on Subscription Hell
For some things I prefer the subscription model because of the incentives it creates, every article I read or day that I go to a gym lowers the overall cost-per-visit. With a per-article or per-visit model, I would be disincentivized to read and go to the gym. It also frees me from repeatedly making the same decision every day, do I value $1 more the content of this article? Do I value $10 more than going to the gym right now?

For me the nice thing about blendle is cheap access to several sources, if they have a prepaid plan that charges monthly at $10 for 60 articles (16c/article), I would do that.

I think it depends a lot on if you experience journalism as more similar to a gym (exercise for your brain) or netflix/hulu (entertainment).

alexbeloi··on Customer takes Bell to court and wins
Not counting damages to reputation

(1 - P) * 1110 + (cost of additional legal fees)

Where P is Bell's probability of winning.

alexbeloi··on Detroit Was Crumbling, Now It's Reviving
>service sector jobs don't create wealth: you can not have a city solely of repairmen and realtors.

Repairmen very directly create wealth by adding value to the thing they repair, equivalent to a craft trade or construction. Realtors create wealth indirectly by increasing/facilitating trade, trade creates wealth.

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