dekhn

34 ms·

661.
by dekhn 1y ago
I once had the distinct pleasure of hosting the author of BWA (R. Durbin) at Google, and pointing out "That's Mike Burrows, over there, next to Jeff Dean and Sanjay Ghemawat". That led to an interesting discussion between Du
662.
by dekhn 1y ago
For one approach to compressing FASTQ (which is a series 3 distinct lines), we broke the distinct lines each into their own streams and then compressed each stream independently. That way the coder for the header line, sequence line, and e
663.
by dekhn 1y ago
I've explored alternatives to FASTA and FASTQ but in most cases I found that simply not storing sequence data is the best option of all, but if I have to do it, columnar formats with compression are usually the best alternative when co
664.
by dekhn 1y ago
In physics "order of" means "approximately" using something like a taylor series, which typically start with a constant, then move to higher polynomial terms which add smaller and smaller corrections. Similar, but diffe
665.
by dekhn 1y ago
no, the "O" here is "on the order of", not Big O notation.
666.
by dekhn 1y ago
I have a clue, and my point is not pedantic, it's clarifying. If they found- using experimental apparatus- some physical evidence, it would be a 'finding'.
667.
by dekhn 1y ago
This isn't really a "finding"- it's a theoretical prediction based on observed data, along with a proposed experimental apparatus to detect such items. I don't really get excited for theoretical predictions like thi
668.
by dekhn 1y ago
The link is to a course in operating system design and implementation that uses a simple kernel based on a historically relevant UNIX. The simple kernel has been updated to take advantage of a relatively new architecture (RISC-V) that was
669.
by dekhn 1y ago
Phison Pre-Release Firmware, Not Microsoft Path, Linked to SSD Failures (I know the article itself uses the poorly written title)
670.
by dekhn 1y ago
Swartz, like many of us, see pay-for-access journals as an affront. I believe he wanted to "liberate" the content of these articles so that more people could read them. Information may want to be free, but sometimes it takes a re
671.
by dekhn 1y ago
I don't think Google Books scanner chopped off the spine. https://linearbookscanner.org/ is the open design they released.
672.
by dekhn 1y ago
He got into trouble for breaking into an unsecured network closet at MIT and using MIT credentials to download a bunch of copyrighted content. The whole incident is written up in detail, https://swartz-report.mit.edu/ by Ha
673.
by dekhn 1y ago
I got to meet him and person and tell him that his books (along with The Coming Technological Singularity) had a huge influence on my decision to go into ML. He seemed pleased. I just wish he had wrapped up the Fire Upon the Deep series.
674.
by dekhn 1y ago
"That alarm cannot be silenced here"
675.
by dekhn 1y ago
To me the simplest place to start is Fourier Optics. A carefully set up collection of lenses, illuminators, samples, and cameras can compute (well, physically evaluate) the fourier transorm of a 2D image. https://en.wikipedia.o
676.
by dekhn 1y ago
A hash table in C is about 30 lines of code, so I don't think you have to stick to linked lists for dictionaries.
677.
by dekhn 1y ago
Similar experience in DNA/genome analysis. A large part of DNA analysis was based on parser theory. This paper was my introduction to DNA analysis as well as Chomsky hierarchy: https://www.jstor.org/stable/2977478
678.
by dekhn 1y ago
It added intrusive- codebase-wide- functionality that more or less could have been done with other (thread-based) approaches. AWSCLI was broken for over a year- we had to do a ton of work to deal with the various packaging issues. Don'
679.
by dekhn 1y ago
HN title editor mistake? "16" should be at the start.
680.
by dekhn 1y ago
Not exactly what you asked for, but Alastair Reynolds have books with "hyperpigs" that are part-pig, part-human, likely bred to be replacement parts for humans.
681.
by dekhn 1y ago
I would guess it's Amazon and Microsoft. Or mayyyybe Amazon and Alphabet?
682.
by dekhn 1y ago
Probably should link to: https://marshmallowlaserfeast.com/
683.
by dekhn 1y ago
Yes, in this case the telescope (array) is composed of many elements. The scopes themselves are very sensitive (so they can detect minute amounts of photons) and the combined array gives a much higher resolution (ability to see things that
684.
by dekhn 1y ago
did the hacker news title editor change the "mit" to "MIT"?
685.
by dekhn 1y ago
My main reference is the head of computing at CERN, who explained this to me. He gave some early examples of ROOT ( https://en.wikipedia.org/wiki/ROOT ) using parallel processing of the ROOT equivalent of SSTables.
686.
by dekhn 1y ago
What blows me away is that there are quantum calculations which grow as O**7 with respect to the number of atoms and scientists are fine with running them because N is small, computers get faster and more memory all the time, and the result
687.
by dekhn 1y ago
"Preliminary Roko Enforcement"
688.
by dekhn 1y ago
CERN was doing the equivalent of MapReduce before Google existed.
689.
by dekhn 1y ago
I believe Map in MapReduce stood for "map" function, not a multimap- I've never heard or read otherwise (maps can operate over lists of items, not just map types). That's consistent both with the original mapreduce pape
690.
by dekhn 1y ago
We've basically been watching Google gradually re-discover all the tricks of supercomputing (and other high performance areas) over the past 10+ years. For a long time, websearch and ads were the two main drivers of Google's data

More ›