Hacker News new | past | comments | ask | show | jobs | submit | siddboots's comments login

I like to tell my colleagues that the Heaviside function is so named because it is heavier on one side than the other.


A Gaussian process fits a single high dimensional Gaussian, for example, by treating n observations along a single dimension as a n dimensional space.

Gaussian mixture models fit a large number of low dimensional Gaussians for example you might imagine 2D data generated by several 2D Gaussian superimposed.

This approach is just an example of the latter. It uses higher dimensional Gaussians to capture extra information from a scene, but not in the emulation of an infinite dimensional space in the way that defines Gaussian processes.


To add to a sibling comment, if you're interested in learning a bit about the both the Gaussian (as in a density estimator like Gassian Mixture Models, aka GMMs) vs Gaussian Processes (GP), I have some write-ups here: [1] and [2].

[1] Fun with GMMs https://blog.quipu-strands.com/fun_with_GMMs

[2] This is a larger article on BayesOpt, but I've a section dedicated to GPs: https://blog.quipu-strands.com/bayesopt_1_key_ideas_GPs#gaus...


It's just a contract - if both parties are happy to deal with the energy in bulk, then there's no problem.

However, if either the buyer or seller thinks there is a risk some of the generation won't be produced, there's still lots of ways to manage that risk in a relatively simple way. Probably the simplest is a variation on "take-or-pay" where the buyer holds some of the risk when the generator is curtailed, i.e., not dispatched by the system controller. Essentially that means that the buyer is committing to have load available to generate against.

I've also seen renewable PPAs with time of use specified either in volume for purchase, or in the price structure.


It resembles a pie chart, but if you think of it instead as like a stop watch, then it makes perfect sense.


It would make more sense if each time was an arc instead of a segment. And what does one revolution represent?


Amount of time to eat a pie while waiting for your numerical library of choice.

Conclusion: Polars gives you indigestion.


Just a data point: I've got access to plugins as of the last hour, but no access to web browsing yet.


And another: I did have access to plugins (but not web browsing), but the list of plugins would not load. I seem to have been reverted to what looks more like the May 3rd release now (other than it no longer has the deprecated GPT-3.5 model available)


I love that reddit now wants you to log in to view 18+ subreddits, and that the work-around is to replace "www" with "old" in the URL, asserting that you are indeed old enough.


Lol i noticed this. I can guarantee they're removing old.reddit soon, i can't see why else they'd do blocking on the front end this way.


I was under the impression that most high value content producers and moderation tools that make the bigger subs usable rely on old. They know they'll drive away all the power users if it goes.


It’s honestly something of a marvel to see a big ol’ framework like SQLAlchemy successfully manage these big structural api changes. The changes that have lead up to v1.4 and v2.0 have been very significant improvements to the user interface, and have kept the library up to date with the language in a way that is rare to see for a code base of such complexity. Also the new unified bulk insert interface is a big win for my ETL workflows.

Hats of to everyone be involved!


When I was quite a bit younger I went through a Wendy Carlos obsession, and spent a lot of time with Switched On Bach, Clockwork Orange, and some of Wendy’s other synth works.

Much later on, after my interests had wandered a long way from analog synth stuff, I went through a Bossa Nova phase, and at some point discovered Joao Gilberto’s 1973 self titled album which shortly became one of my favourite albums of all time. It’s an absolutely hypnotic, beautifully stripped back yet harmonically complex distillation of the bossa sound.

Only after having listened to it surely hundreds of times I read up on the recording and discovered that Carlos was the sound engineer!


That's where my mind went as well - in fact, it reminded me of Guy Debord:

> In societies where modern conditions of production prevail, all of life presents itself as an immense accumulation of spectacles. Everything that was directly lived has moved away into a representation.


I agree. The explosion of hype, the layers of scams, the idiocy of NFTs - all of it has put a bad taste in a lot of mouths, which is understandable, but unfortunate.

It's unfortunate because distributed ledgers are so much fun to play with. Conceptually simple enough that you can build one from scratch in an afternoon; deep enough that, notwithstanding the hype, there remains a huge amount of room for ideas barely explored.

Imagine if Hacker News could be a place that celebrated ideas like this for the love of hacking.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: