heinrichhartman

11 ms·

61.
by heinrichhartman 4y ago
Sure, but from an algebraic (categorical) perspective, taking kernels, co-kernels and images are the most fundamental operations you can think of. The question is: How do you compute them in an effective (avoiding full SVD) and stable way?
62.
by heinrichhartman 4y ago
It's not unique, but it can be implemented in a way that is stable. E.g. SVD does this (but is quite overkill for the requirements). It's highly relevant from an algebraic perspective, hence it's curious that it's not co
63.
by heinrichhartman 4y ago
As it turns out, the author does cover the rank-decomposition (under the name "Rank-Revealing Factorization") in his blog as well: https://nhigham.com/2021/05/19/what-is-a-rank-revealing-fact...
64.
by heinrichhartman 4y ago
From a theoretical perspective the most fundamental decomposition is the rank-decomposition: A = X D Y with X,Y invertible and D diagonal. It's called rank decomposition, because you can read off the rank from A by counting the non-zer
65.
by heinrichhartman 4y ago
Good to hear. I also learned a lot from this discussion!
66.
by heinrichhartman 4y ago
Yes. But also MUCH cheaper. You loose (1) ordering (2) ~5% of precision of the individual measurements. In practice, this still allows for highly precise percentile calculations (<0.1% error), see the evaluation in the Circllhist paper.
67.
by heinrichhartman 4y ago
There are a large amount of subtle tradeoffs around the bucketing scheme (log, vs. log-linear, base) and memory layout (sparse, dense, chunked) the amount of configurability in the histogram space (circllhist, DDSketch, HDRHistogram, ...).
68.
by heinrichhartman 4y ago
Circonus Histograms solve that by using a universal bucketing scheme. Details are explained in this paper: https://arxiv.org/abs/2001.06561 Disclaimer: I am a co-author.
69.
by heinrichhartman 4y ago
Now that we understand this can we please put all system tools into /bin? Disk space for binaries has not been a problem for decades now.
70.
by heinrichhartman 4y ago
> Discussing the problems of men, as a group, is intentionally suppressed by women Don't make this into a "men" vs "women" problem. There are plenty of women who are on the right advocating for traditional family
71.
by heinrichhartman 4y ago
Question for those in the Beta trial: Can you disable this feature globally for your account, or do you need to disable this in every document explicitly?
72.
by heinrichhartman 5y ago
With every dependency, you are allowing a 3rd party to inject code into your project. This can end badly e.g. #leftpad - https://www.davidhaney.io/npm-left-pad-have-we-forgotten-how...
73.
by heinrichhartman 5y ago
Forgive me for bringing up my own material here, but I wrote a piece that is highly relevant in this context only two days ago: Writing for Engineers - https://www.heinrichhartmann.com/posts/writing/ This text is
74.
Netflix End of Series 1(brendangregg.com)
279 points by heinrichhartman 5y ago|73 comments
75.
by heinrichhartman 5y ago
Thats a strawman. I hate right wing bigots as mich as you do, but I don't think Musk belongs to that crowd. Here is what he actually said: (a) censorship decisions should be made by courts not private companies (b) moderation should be
76.
by heinrichhartman 5y ago
This is a very slick tool that allows you to forward ports from your local machine to a public server at `bore.pub`. I hope this service will continue to be available, however it looks to me as if this service is very easily abused (e.g. by
77.
by heinrichhartman 5y ago
Indeed. First commit is two days old: https://github.com/benbjohnson/postlite/commit/35974771877cd...
78.
by heinrichhartman 5y ago
Grafana Cloud
79.
by heinrichhartman 5y ago
Here is the full list: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...
80.
by heinrichhartman 5y ago
The documentation states, that you can export "all the cards in the current Noteboard as a ZIP of markdown files" [1] So it looks like exporting is limited to a single "Noteboard". Without bulk export (better sync) featu
81.
by heinrichhartman 5y ago
The polish is so nice, that I could not tell if this is parody or not. Well Done!
82.
by heinrichhartman 5y ago
How about learning a language model on ~~the SciHub texts~~ some large private repository of articles, that can auto-complete a paper from the title ...
83.
by heinrichhartman 5y ago
No shared memory. To communicate between processes you usually use sockets, to communicate between threads you mutate variables. This is a huge performance difference.
84.
by heinrichhartman 5y ago
#MeToo. I am using two OSX machines and two remote Linux machines for my day-2-day private/work related stuff. Nix+home-manager allows me to have all productivity tools consistently available across all platforms with minimal effort [1
85.
by heinrichhartman 5y ago
> How do you deploy a thing to run on k8s? kubectrl apply -f deploy.yaml should work, no? What forces you to use the sugar-coating?
86.
by heinrichhartman 5y ago
off-site backup?
87.
by heinrichhartman 5y ago
Are there plans for a 15" Laptop soon? Can't wait to place an order.
88.
by heinrichhartman 5y ago
Who are those creditors? Who set's that interest rate? It's largely the FED, right? What prevents the FED from keeping the interests low, if the US-Gov does not want to pay?
89.
by heinrichhartman 5y ago
Ad 2) There were no alternatives to local carpenters 100 years back. If you wanted a wardrobe, you would get one built for you. You can still do that today, and get a wardrobe for 8K, that lasts 40years. But now we do have "cheaper alt
90.
by heinrichhartman 5y ago
WOOT! That's awesome.

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