HNHacker News
TopNewBestAskShowJobs

cracker_jacks

1,083 karma · joined May 17, 2013

submissionscomments
cracker_jacks··on College became the default – Let's rethink that
"College became default"
cracker_jacks··on Why Germany won’t keep its nuclear plants open
> The Russians are suggesting that the killings were of 'Russian friendly' Ukrainians, killed after the troops left.

Satellite imagery taken before Russian troops left shows massacre happened before withdrawal. https://twitter.com/nytimes/status/1511060668610457612

cracker_jacks··on Gradients Without Backpropagation
Oh, you're talking about using the forward gradient method. This still does not make much sense because if the projection of the gradient in that direction is zero or near zero, that is a very weak step in reducing the loss.
cracker_jacks··on Gradients Without Backpropagation
I believe what you are describing is grid search, not gradient descent. Gradient descent is not an exhaustive search.
cracker_jacks··on Gradients Without Backpropagation
I agree, in expectation, the orthogonal directions cancel out. But the variance does not cancel out. Are you using some sort of momentum-like optimizer?
cracker_jacks··on Gradients Without Backpropagation
> The more dimensions, the simpler the surface. With enough dimensionality, everything is a straight line.

Even assuming this statement were true (which is a big if). That does not explain how it would outperform gradient descent.

cracker_jacks··on Gradients Without Backpropagation
That does not make sense, can you expand? The steepest descent direction is far more useful than a random direction in high dimensions because that random direction has a greater chance of being nearly orthogonal to the steepest descent direction.
cracker_jacks··on US PTO rules against Univ of California, argues that Broad Inst invented CRISPR
Yes, I am certain the background this particular website provides will be super objective and unbiased.....
cracker_jacks··on Otter.ai has saved reporters hours transcribing interviews. Caveat emptor
Can a viable business be made around targets/victims sending their phishing attacks to a reverse engineering lab? The more valuable the target, the more likely an unknown and valuable exploit might be surfaced. As a consequence, this increases the expected cost of attacking these targets/victims.
cracker_jacks··on Twitter expands downvote test worldwide
lol, 'even', I find HN in particular loves pitchforks.
cracker_jacks··on Train burglaries in LA
"Air tag" like trackers on decoy packages mixed in might be a cheap solution to this issue.
cracker_jacks··on Google no longer producing high quality search results in significant categories
Agree that the reddit is more relevant to me because it has multiple perspectives in a discussion format, but I don't see any particularly bad links with the first search. The first one just has more conventional review sites like GoodHousekeeping and Forbes.
cracker_jacks··on Google no longer producing high quality search results in significant categories
Can someone provide some explicit search queries so we can see the bad examples? Lots of criticism is being doled out in that thread without an actual example to see for myself.
cracker_jacks··on The future of artificial intelligence is self-organizing and self-assembling
Transformers subverting convolution on their own turf (vision) was certainly unexpected.
cracker_jacks··on The Open Cap Table Coalition
Why is there a culture of hiding cap tables in the first place? Seems like some incentive structures need to be fixed before a transparent cap table is adopted.
cracker_jacks··on Web3 is not Decentralisation – it’s a Ploy to put Crypto Bros in Charge
Because the ability to accumulate wealth becomes easier as you have more of it.
cracker_jacks··on Web3 is not Decentralisation – it’s a Ploy to put Crypto Bros in Charge
Can you explain how permanent monopolies won't become a problem?
cracker_jacks··on Web3 is not Decentralisation – it’s a Ploy to put Crypto Bros in Charge
This is the thing I do not fully understand about crypto and more specifically Bitcoin. If Bitcoin is successful, it will inevitably create a tiny group of super-wealthy early adopters amongst everyone else and we are back to the same rigged system evangelists were arguing crypto solves. Even worse, there is no method of confiscation/redistribution/taxation to prevent monopolies.
cracker_jacks··on U.S. house prices are rising exponentially faster than income
When you make housing an investment, by definition, it has to become less affordable in the future.

Until a country decides to stop making policy to support this notion that a basic need should be an appreciating asset and not a depreciating one like food, transportation, etc, this completely unsurprising trend will continue. It is a strange world we live in where we collectively believe that a basic need should increase in price over time.

cracker_jacks··on The Next Big Thing: Introducing IPU-POD128 and IPU-POD256
What's the market Graphcore is going for here?

Even their own performance releases are not really favorable over nvidia's current offerings. This is definitely not enough to justify the risk of moving to a new hardware/software stack:

https://semianalysis.com/graphcore-looks-like-a-complete-fai...

cracker_jacks··on Some tech founders are getting huge pay packages
Any memory of where you found this data?
cracker_jacks··on Dude, where’s my stuff
This is a well-known phenomenon known as the bullwhip effect (https://en.wikipedia.org/wiki/Bullwhip_effect).
cracker_jacks··on EV startup Rivian announces $2.5B funding round led by Amazon, Ford
These were only safe after one of those billionaires actually proved it. Before SpaceX and Tesla, both these things were considered untenable.
cracker_jacks··on Airbnb raises violent crime rates in cities as residents are pushed out
No, the difficulty of increasing supply has directly led to increased home prices.
cracker_jacks··on Full-time minimum wage workers can't afford rent anywhere in the US
When you make housing an investment, by definition, it has to become less affordable in the future.

Until a country decides to stop making policy to support this notion that a basic need should be an appreciating asset and not a depreciating one like food, transportation, etc, this completely unsurprising trend will continue. It is a strange world we live in where we collectively believe that a basic need should appreciate in value over time.

cracker_jacks··on ML Beyond Curve Fitting: An Intro to Causal Inference and Do-Calculus (2018)
Can you give an example of how you can get away without an intervention?
cracker_jacks··on America should become a nation of renters
Housing should have never been considered an investment. It is a basic need. If that basic need becomes an investment, it is by definition going to become less affordable to those who do not hold it in the future.

If you consider it an investment, homeowners are going to protect its value like one, and prevent supply competition via regulations, voting power, etc.

It is a strange world we live in where we collectively believe that a basic need should appreciate in value over time.

cracker_jacks··on Analysis of blood markers predicts human lifespan limit
That is not how limits work. No human we are aware of in the history of the world has been to Mars. Does that mean Mars is above a limit?

Limits are not defined by history, they are defined by our current understanding of science (and they are often wrong).

cracker_jacks··on The Cicada's Love Affair with Prime Numbers (2013)
Not just minimizing contact with predators, also minimizes resource competition with other species of cicadas.
cracker_jacks··on US passes emergency waiver over fuel pipeline cyber-attack
You're assuming the US and other government are not using cryptocurrencies for their own covert transactions.
Page 1 of 4Next →