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dweinus

782 karma · joined May 6, 2013

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dweinus··on Show HN: Reorganize pixels of a painting into a smooth color palette using PCA
As a graphic designer turned data scientist, that is the coolest poster art backstory I have ever heard.
dweinus··on The Anti-Helicopter Parent’s Plea: Let Kids Play
I think the factual counter-argument is that child mortality has declined both from accidental drowning[1] and all causes[2]. I still think it is open to interpretation if helicopter parenting is causative or justified.

[1] http://www.cdc.gov/mmwr/preview/mmwrhtml/figures%5Cm6115a5f....

[2] http://www.childtrends.org/wp-content/uploads/2012/11/63_fig...

dweinus··on Guerrilla Bike Lanes in San Francisco
I agree that mindset is safer, but defensive riding and defensive infrastructure are not mutually exclusive concepts. Both save lives.
dweinus··on Show HN: Git Confirm. Git hook to catch accidentally committed code (TODO/Skip)
In case anyone else is interested, this looks like a way to get there: http://www.sublimelinter.com/en/latest/creating_a_linter.htm...
dweinus··on Show HN: Git Confirm. Git hook to catch accidentally committed code (TODO/Skip)
Does anyone know of anything similar as a Sublime package? I already do my linting there, so this would be a great addition.
dweinus··on Show HN: PlateJoy (YC S15) – Algorithmic meal planner with integrated delivery
Looks awesome so far! I wanted to give a thumbs up for adding the "seasonal" option. It is much appreciated and often overlooked.
dweinus··on Why Angular 2 Switched to TypeScript
The title of one of the article sections is literally "TypeScript is a Superset of JavaScript" ...people do still read before commenting, right?
dweinus··on Gchat Was the Future of Messaging, but Google Didn’t Know
Personally,I had that moment when Google bought my favorite interoperable chat app so they could kill it: https://en.wikipedia.org/wiki/Meebo
dweinus··on Ask HN: What's your workflow for simple side projects?
I do the same. I spend a lot of time sketching and mentally toying with it before I drop code. It gives me something to do on train rides and is a welcome luxury in comparison to agile.
dweinus··on Comparing Clustering Algorithms
Thank you for the response and also all of your hard work in the Python package!
dweinus··on Comparing Clustering Algorithms
Great article! Does anyone know of an implementation of HDBSCAN for R?
dweinus··on GitHub pages is now running Jekyll 3
I have to agree: they took away 2 features I was using and gave me better performance in the one place I don't care about performance.
dweinus··on Build your own Jarvis
After a casual read: yes, I believe so, in that it does not require 3rd party API's. You do still need to run it on a server that your client device can connect to. If your goal is an assistant that does not report back to Apple/Google/MSFT/Amazon, then Sirius looks like another good option.
dweinus··on Leaked Documents Reveal Police Department Planted Drugs for Years, DA Complicit
1) The analysis here is conducted by a pretty biased source: a former cop 2) his data is fed by news reports which may not evenly cover actual incidents 3) 25% of the data lacks racial info at all 4) The likelihood of biased policing being a factor in higher reported African American crime rates completely undercuts the conclusion he reaches

Put another way: there are at least 2 layers of biases that occured before Mr. Moskos even touched the data.

dweinus··on The Grim and Gory Reality of Surgery in Space
Aside from the manueverability problem mentioned in other comments, the tether has a materials problem: it needs to hold the combined ship and couter weights at approx 1g.
dweinus··on Show HN: 10MinuteStorage – Filesharing simplified with three words
I'm curious what method is being used for generating the words. I played around with humanhash a while back for similar purposes.
dweinus··on Life is a braid in spacetime
Not a physicist -> My assumption is that this is because x,y,z are just constructs to model physical space. They don't exist and we could just as well describe space with cartisian coordinates or some other system where the dimensions would not be isometric. Meanwhile, as you point out, t as a vector is also itself a convenient model for something, not an actual dimension.
dweinus··on Locking the Web Open: A Call for a Distributed Web
Thank you for the thoughtful responses! I am still getting my head around some of this, so I love hearing solutions I have not thought of.

"common groups of users encrypt data for each other with each others keys"

I agree, but I think this can quickly lead to massive multiplication of data without careful cryptographic gymnastics. It puts more pressure on the application devs to do it right or more pressure on the network in terms of data if you don't.

"Sure you can still leak your private key like you can leak an SSH key today."

If I leak an SSH key, I can revoke it and only data that attackers have already grabbed is out. In the described paradigm, everything is already out to everyone. It is all or nothing. That might not be a difference from a theoretical point of view, but in practice it is.

MaidSafe is very interesting, thank you! It seems like more of a shared cloud, which is halfway between present cloud computing and the completely distributed utopia described in the article. It solves pretty much all of these issues, with the cost of being a less-centralized network rather than a fully distributed network. Awesome work, I hope they succeed!

dweinus··on Locking the Web Open: A Call for a Distributed Web
I want this for all the reasons they list, but it seems there are huge unanswered questions for anything beyond a permission-less static page. Imagine you are developing a modern web app in the locked open paradigm. Is all system data distributed, including private user data and passwords? The only solution I can come up with is homomorphic encryption, which is not performant enough and still probably leaves a huge timing/structure analysis attack area if anyone can download the database. If I make any mistakes on the database security, the entire DB is already pre-leaked to the world? The final dencryption/encryption happens in client javascript, which is a whole other hornets' nest. Besides that, the implication is that I write my entire system stack in client javascript that is exposed to everyone, including any proprietary algorithms or credentials? Even if that was ok, and the system can live in the user cloud, where does system processing that is independent of user activity (scheduled tasks, etc) happen? Again, I want all of these problems to be solved, but they are nontrivial.
dweinus··on Unusual Red Arcs Spotted on Icy Saturn Moon
I'm not a physicist, but I would hazard:

it would require a very non-spherical object to create an a-circular crater because ground resistence forces material to move primarily parallel to the surface of the planet/moon, which tends to regularize the shape. Any atmosphere will make the impacting object more spherical through resistance. Lastly, large bodies in space tend to spheres naturally as their mass converges by gravity.

dweinus··on Let’s Take This Open Floor Plan to the Next Level
Nope, I'm not calling anyone lazy! It is certainly whining. Maybe it is justified whining for some, but in my experience it is not. Either way, I think there needs to be some perspective here.

To your point: there are noise-cancelling headphones that don't require music. Constant disruption is a cultural issue. I work in an open layout where I am rarely disrupted because people know better than to bug that guy with the intense look on his face and his headphones clamped on. The open layout means that they can see clearly when it is ok to engage me and when it is not.

dweinus··on Let’s Take This Open Floor Plan to the Next Level
Well written and funny! ...but I'm weary of the first world whining about open plans. I spent many years in traditional floor plans and many with open. I prefer open and find that headphones and slack provide 90% of the privacy I need without sterile cubes or isolated offices. YMMV. It also makes business sense: it's cheap and flexible like cubes without feeling like a filing cabinet for people. Again, just my opinion, but if the worst part of your job is that you don't like the floor plan, you should count yourself as very lucky.
dweinus··on Suddenly, It Seems, Water Is Everywhere in Solar System
Ignoring the idiotic patriotism, that image is incorrect: Russia, China, and India have all placed landers on the moon.
dweinus··on Finding cheaters using multiple-choice comparisons
I wonder if the front-back case is the top-most red dot. This would be explained if the front person was innocent and the person behind them copied. Not having the benefit of collusion, they have more shared wrong answers. Also, they have less answers in common overall, which supports the non-collusion theory.
dweinus··on It's important that cultures disappear
"The best way to achieve a global, optimal monoculture..." Why would you assume that the best monoculture is better than an ensemble of locally optimal cultures? It seems unlikely for that to be true when the variables that cultures form in response to differ by locality: climate, native flora/fauna, terrain, economy, demographics, etc.
dweinus··on Twitter Now Lets You Search for Any Tweet Ever Sent
I wish the API used the new index, but unfortunately it still provides a very limited and incomplete search functionality.
dweinus··on Skunk Works Reveals Compact Fusion Reactor Details
From the article:

"Until now, the majority of fusion reactor systems have used a plasma control device called a tokamak, invented in the 1950s by physicists in the Soviet Union. The tokamak uses a magnetic field to hold the plasma in the shape of a torus, or ring, and maintains the reaction by inducing a current inside the plasma itself with a second set of electromagnets. The challenge with this approach is that the resulting energy generated is almost the same as the amount required to maintain the self-sustaining fusion reaction."

dweinus··on Tesla wants to sell you a used Model S
From a buyer's perspective though, a guaranteed 43% retention in value vs a gamble on 61% seems like a logical trade-off.
dweinus··on Show HN: OpenRA – RTS project that recreates Command and Conquer games
...thankfully, not totally abandoned: http://www.uberent.com/pa/
dweinus··on Why This Mars Rover Has Lasted 3,560 Days Longer Than Expected
This is why is seems so terribly short-sighted to me that our most recent rover is nuclear-powered.
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