andreer

4 ms·

1.
by andreer 4y ago
Using the Adafruit breakout board, I had no problems other than an SPI bug in the Arduino core. Be warned that they are fragile when not protected, I sheared off the flex cable on one which was not fun. Official refresh rate is ~25 hz, unof
2.
by andreer 4y ago
Yeah that would be another few orders of magnitude smaller power budget. But I love the idea. My project so AMA (although this doesn't seem to be blowing up here on HN :-)
3.
by andreer 4y ago
IPC is still improving, so single thread performance is still increasing, even if clock speeds are not (at least not at the same as before). And new instructions (AVX ect) also help, especially if you can optimize and recompile your code. I
4.
by andreer 4y ago
There is a forum dedicated to devices like this at https://forum.ei2030.org/ - also a zulip chat linked there which is more active.
5.
by andreer 6y ago
Reminds me of the recent Lisperati1000: https://www.hackster.io/news/the-lisperati1000-is-a-cyberdec... I think these personal terminals are really cool, and might foster some interesting innovation in the near future.
6.
Vespa.ai 5x faster than Elasticsearch at nearest neighbor ranking(github.com)
8 points by andreer 7y ago|1 comments
7.
by andreer 7y ago
There's much in this thread about the helmet absorbing the energy of the impact, but that's far from the whole benefit of wearing one. The helmet, by conforming to the shape of your head, distributes the energy from the point of
8.
by andreer 7y ago
Just an FYI to your last paragraph: The core indexing/ranking/storage components of Vespa are C++, and run in a separate process (no jni). In my own attempt to compare the two, I found the memory consumption of Vespa was easier to
9.
by andreer 7y ago
Here’s a sensor that’s already used by the local police to monitor the breathing of those locked up over night - to be able to respond asap if someone stops breathing after excessive drinking or drugs. Seems benevolent to me. https:/&
10.
by andreer 8y ago
I find this to be an interesting question. Given a modern, high-performance compiling lisp implementation on a modern CPU, say SBCL on x86_64. What modification or addition to the CPU (or wider computer architecture) would be most effective
11.
by andreer 8y ago
Technological innovation can also arise as a consequence of the minimum wage being high. By increasing the cost of human labor, automation becomes relatively cheaper / more cost effective. Here in Norway this has led to the near comple
12.
Vespa Meetup in Sunnyvale(blog.vespa.ai)
1 points by andreer 9y ago|0 comments
13.
by andreer 9y ago
Are these in unicode already, or are they really Apple specific?
14.
by andreer 9y ago
It could be a replacement for the 'E', but the APIs are different enough that there's no drop-in replacement for the 'L' and 'K' and creating or making those compatible would be a significant effort. Would
15.
by andreer 9y ago
In our tests, vespamalloc has simply been faster. I don't know how in-depth the analysis has been as to why, but obviously vespamalloc is written and tuned for Vespa so that is a likely factor.
16.
by andreer 9y ago
The reason is simply, for performance. To avoid having to go to the kernel every time we need to allocate memory for a query, and avoid having to clear memory on free/reuse. It is made for Vespa, but also used for other programs. Simil
17.
by andreer 9y ago
It's based on "VErtical Search PlAtform". A bit of a contrived acronym perhaps ... it's been known as Vespa internally in Oath/Yahoo for a long time.
18.
by andreer 9y ago
That would be Apache Pig, a scripting language for Hadoop. Some scripts are included to feed data to and query Vespa from Hadoop. https://github.com/vespa-engine/vespa/tree/master/vespa-hado...
19.
by andreer 11y ago
Solving all of these in 5 hours is truly awe inspiring. It would probably take me months, if not years :-)
20.
by andreer 12y ago
Skip to Chapter XIV, if you must. "Of all men they alone are at leisure who take time for philosophy, they alone really live; for they are not content to be good guardians of their own lifetime only".
21.
by andreer 13y ago
The whole town is actually considered for a place on the UNESCO world heritage list: http://whc.unesco.org/en/tentativelists/5472/ It certainly has an interesting history, having started as a company town, im
22.
by andreer 13y ago
Very neat. I'm ordering a print of my home town. Then we can add pins to show where our house, where grandparents live, etc. I'm sure the kids will enjoy it.
23.
by andreer 13y ago
I'll miss this feature, but I realize that for the "average user" which only uses ctrl-x/c/v it is probably a good thing. Personally, I've long been planning to switch back to a tiling wm anyway.
24.
by andreer 13y ago
Bar graph of current data: http://www.pvv.ntnu.no/~andreer/salary_bar_graph.png
25.
by andreer 13y ago
My son (nearly three), usually around 6am. If I don't bounce out of need the instant he opens our bedroom door, he'll wake the baby and her mother, and both will be grumpy for the rest of the day! I love it because then we get to build some
26.
by andreer 13y ago
Well, in a way. Yahoo products with Summly integration are in the app store right now.
27.
Mystery hunt regex crossword solved in 127 lines of Haskell(gist.github.com)
3 points by andreer 13y ago|1 comments
28.
by andreer 14y ago
An excellent writeup on different techniques to do this: http://www.keithschwarz.com/darts-dice-coins/
29.
by andreer 14y ago
n here is the number of different elements you can choose from. If there was a third alternative, you'd have to add another if statement.
30.
by andreer 14y ago
Both my kids have slept outside, also in temperatures down to -10C. I don't know whether they slept better, but they certainly slept for longer - giving me more time to get other things done. I suspect thats probably the real reason for it!

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