We Will Call It Pala: A Story for the Psychedelic Movement
3 by kudu | 0 comments on Hacker News.
Thursday, 31 October 2019
Wikipedia article of the day for November 1, 2019
Wikipedia article of the day is No Such Thing as Vampires. Check it out: https://ift.tt/34kxNtj
Wednesday, 30 October 2019
Wikipedia article of the day for October 31, 2019
Wikipedia article of the day is Michael Collins (astronaut). Check it out: https://ift.tt/1prqpAS
Tuesday, 29 October 2019
Wikipedia article of the day for October 30, 2019
Wikipedia article of the day is Sorga Ka Toedjoe. Check it out: https://ift.tt/2WnWX7C
Monday, 28 October 2019
New top story on Hacker News: Ask HN: Random upper back pain is ruining my life. At wits end. Anyone else?
Ask HN: Random upper back pain is ruining my life. At wits end. Anyone else?
5 by anm89 | 3 comments on Hacker News.
I'm writing in total desperation. I feel like I can't make it through another day of meaningless, constant back pain. I've had it on and off for 7 years now, since I was 24 (now 31) It's this weird vibrating, tingling, burning, muscle sore combination that moves between the left side of my neck, under my shoulder blade, my left trap, and sort of out to the back of my ribs right below my shoulder blade. The pain moves around and sometimes I'll get a similar feeling on the other side of my body which makes it all the more confusing. I've been to doctor after doctor after doctor and I have absolute no more info then when I started. I'm on the verge of quitting my job because I feel like I can't go through another day tomorrow. The only thing I've ever correlated with more or less pain is how hydrated I am (ie less pain if more hydrated) and even that is pretty loose. Has anybody ever gone through anything like this? Has any body ever gotten over it or am I doomed to this for life?
5 by anm89 | 3 comments on Hacker News.
I'm writing in total desperation. I feel like I can't make it through another day of meaningless, constant back pain. I've had it on and off for 7 years now, since I was 24 (now 31) It's this weird vibrating, tingling, burning, muscle sore combination that moves between the left side of my neck, under my shoulder blade, my left trap, and sort of out to the back of my ribs right below my shoulder blade. The pain moves around and sometimes I'll get a similar feeling on the other side of my body which makes it all the more confusing. I've been to doctor after doctor after doctor and I have absolute no more info then when I started. I'm on the verge of quitting my job because I feel like I can't go through another day tomorrow. The only thing I've ever correlated with more or less pain is how hydrated I am (ie less pain if more hydrated) and even that is pretty loose. Has anybody ever gone through anything like this? Has any body ever gotten over it or am I doomed to this for life?
New top story on Hacker News: Ask HN: I just wrote an O(N) diffing algorithm – what am I missing?
Ask HN: I just wrote an O(N) diffing algorithm – what am I missing?
6 by keithwhor | 3 comments on Hacker News.
Hey folks, I've been building a rendering engine for a code editor the past couple of days. Rendering huge chunks of highlighted syntax can get laggy. It's not worth switching to React at this stage, so I wanted to just write a quick diff algorithm that would selectively update only changed lines. I found this article: https://ift.tt/2lIuVkG With a link to this paper, the initial Git diff implementation: https://ift.tt/1GF9uI8 I couldn't find the PDF to start with, but read "edit graph" and immediately thought — why don't I just use a hashtable to store lines from LEFT_TEXT and references to where they are, then iterate over RIGHT_TEXT and return matches one by one, also making sure that I keep track of the last match to prevent jumbling? The algorithm I produced is only a few lines and seems accurate. It's O(N) time complexity, whereas the paper above gives a best case of O(ND) where D is minimum edit distance. function lineDiff (left, right) { left = left.split('\n'); right = right.split('\n'); let lookup = {}; // Store line numbers from LEFT in a lookup table left.forEach(function (line, i) { lookup[line] = lookup[line] || []; lookup[line].push(i); }); // Last line we matched var minLine = -1; return right.map(function (line) { lookup[line] = lookup[line] || []; var lineNumber = -1; if (lookup[line].length) { lineNumber = lookup[line].shift(); // Make sure we're looking ahead if (lineNumber > minLine) { minLine = lineNumber; } else { lineNumber = -1 } } return { value: line, from: lineNumber }; }); } RunKit link: https://ift.tt/2MTFXmv What am I missing? I can't find other references to doing diffing like this. Everything just links back to that one paper.
6 by keithwhor | 3 comments on Hacker News.
Hey folks, I've been building a rendering engine for a code editor the past couple of days. Rendering huge chunks of highlighted syntax can get laggy. It's not worth switching to React at this stage, so I wanted to just write a quick diff algorithm that would selectively update only changed lines. I found this article: https://ift.tt/2lIuVkG With a link to this paper, the initial Git diff implementation: https://ift.tt/1GF9uI8 I couldn't find the PDF to start with, but read "edit graph" and immediately thought — why don't I just use a hashtable to store lines from LEFT_TEXT and references to where they are, then iterate over RIGHT_TEXT and return matches one by one, also making sure that I keep track of the last match to prevent jumbling? The algorithm I produced is only a few lines and seems accurate. It's O(N) time complexity, whereas the paper above gives a best case of O(ND) where D is minimum edit distance. function lineDiff (left, right) { left = left.split('\n'); right = right.split('\n'); let lookup = {}; // Store line numbers from LEFT in a lookup table left.forEach(function (line, i) { lookup[line] = lookup[line] || []; lookup[line].push(i); }); // Last line we matched var minLine = -1; return right.map(function (line) { lookup[line] = lookup[line] || []; var lineNumber = -1; if (lookup[line].length) { lineNumber = lookup[line].shift(); // Make sure we're looking ahead if (lineNumber > minLine) { minLine = lineNumber; } else { lineNumber = -1 } } return { value: line, from: lineNumber }; }); } RunKit link: https://ift.tt/2MTFXmv What am I missing? I can't find other references to doing diffing like this. Everything just links back to that one paper.
Internet 'father' Vint Cerf on future challenges ahead for the web
As the Internet marks 50 years, its co-founder Vint Cerf, tells of his concerns for the future.
from BBC News - Technology https://ift.tt/32SWc8Y
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from BBC News - Technology https://ift.tt/32SWc8Y
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Why passwords don't work, and what will replace them
Passwords can be insecure, easy to lose and easier to forget, so can new tech protect us?
from BBC News - Technology https://ift.tt/2oqiBeZ
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from BBC News - Technology https://ift.tt/2oqiBeZ
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Wikipedia article of the day for October 29, 2019
Wikipedia article of the day is Operation Obviate. Check it out: https://ift.tt/29ES8Oq
Sunday, 27 October 2019
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