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afwaller

130 karma · joined September 12, 2012

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afwaller··on Google is apparently taking down all/most Fediverse apps from the Play Store
I know nobody reads the articles but what about reading the title?
afwaller··on Apple announces Apple Music radio
Looks like they’re killing off the beats brand…
afwaller··on Making Advanced GUI Applications with Godot
Yeah redstone in Minecraft is pretty good. Very visual. Few people have made entire CPUs

https://youtu.be/ydd6l3iYOZE

It is still just connecting blocks though as pierrec says below so it can take a lot of connections to get something done

afwaller··on A Surprise AWS Bill
They said ISO, so that’s one file.
afwaller··on A Surprise AWS Bill
Anything the cache doesn’t have, causes a cache miss, which passes it through.

So when you request the large file, the CDN (cache) doesn’t have it, so it immediately passes through to the original source. The details of how this is implemented don’t really matter in the sense that they are not going to host the large file(s) in the CDN, so they will always fall through.

afwaller··on Machine Learning Research at Apple
Apple is in FAANG. For some reason (likely related to 2015-17 era SWE compensation) FANG just includes Netflix (with amazon facebook and google) and not Apple.
afwaller··on Elo sucks – better multiplayer rating systems for smaller games (2019)
This is useful to increase plays by reducing “ladder anxiety”
afwaller··on Google offers free fabbing for 130nm open-source chips
Texas Instruments still sells graphing calculators with 68k processors (TI-89 series, most commonly)
afwaller··on Did a Chinese Hack Kill Nortel?
The hacks were not the problem. They engaged in financial shenanigans because they had a bankrupt management culture.

Their decline and fall were the direct result of their human problems. And, briefly, their human problems stemmed from their human problems.

Culture and management matter.

afwaller··on eBay’s Critics Faced an Extreme Case of an Old Silicon Valley Habit
Completely insane behavior. How do you wake up one day at a corporate environment and think any of this is OK?
afwaller··on The U.S. can now set its own rates for mail from China and other countries
Wow imagine if you could exploit mail rates between various countries with some kind of international mail pricing arbitrage

~~ Charles Ponzi

https://en.wikipedia.org/wiki/Charles_Ponzi

afwaller··on Almost 1 in 3 pilots in Pakistan have fake licenses, aviation minister says
They did not try to lower the gear on their first landing. It would have lowered. They raised the gear. It was in the commanded gear up (stowed position) when they landed and the indicator would have shown it was up.
afwaller··on macOS 11: copies of dynamic libraries are no longer present on the file system
And it was even easier before VPC, just public instances with RDP (obviously a big security issue, but a decade ago not uncommon)
afwaller··on Apple announces it will switch to its own processors for future Macs
No AVX is fairly brutal
afwaller··on Domain-Specific Hardware Accelerators
Bitcoin is a pretty reasonable story for how this occurs - first you start on CPU, then GPU, then custom ASICs.

If the financial motivation is there, companies will build custom hardware. Companies like Apple and Google (TPUs) are building custom processors for various purposes.

afwaller··on Why is it important for a matrix to be square? (2018)
Sometimes losing that information is very useful however, to arrive at a representation that has a specific meaning.

For example, an x-ray computed tomography (CT) image volume in 3D may be projected into various 2D synthetic planar x-ray projections (digitally reconstructed radiographs).

There are countless situations where projections are very useful.

afwaller··on Why Apple ditched PowerPC, and what it says about Apple ditching Intel
There’s already BLAS and JVM for ARM.
afwaller··on The rise of embarrassingly parallel serverless compute
Yes. This is the reason cloud is popular. You don’t have to pay for computer janitors.
afwaller··on Jim Keller Resigns from Intel, Effective Immediately
Yes, it’s a common “gardening leave” strategy.
afwaller··on Jim Keller Resigns from Intel, Effective Immediately
Apple’s announcing their desktop ARM strategy next week.

Given how many iOS and Mac devices (many Macs have an ARM processor for things like the touchbar) Apple ships, they’re already one of the larger custom high-end ARM licensees. It will be interesting to see how it goes for them.

afwaller··on Lemonade files S1
You only make insurance cheaper by charging risky people more.

Right now it is mostly laws that protect categories of people that keep insurance companies from charging people more.

What’s the plan here, use machine learning in a “hands off” way with a black box algorithm to apply pricing discrimination in a way that a human could not because of regulation?

afwaller··on The Impending Doom of Expiring Root CAs and Legacy Clients
We had to deal with the sectigo / addtrust expiration. It was annoying because we reached out to our cert vendor and they had claimed it would not affect us (only affecting “legacy” systems or old browsers), but then of course it did affect us. It was an easy resolution, but still annoying.

Of course, we still have people working on our stuff. If it were some abandoned hardware product I could see this being a disaster.

afwaller··on Image Scrubber: tool for anonymizing photographs taken at protests
Instead of blurring you should add a significant amount of extraneous information (random noise) and then mosaic (downsample).

If you’d like to have a smooth looking censored image you can then blur the mosaic result to have a smooth transition between the censored and original image.

If you simply blur or simply downsample there’s a significant ability to recover data or iterate over data to recover likely inputs. Other posts have discussed deconvolution, but think of a downsample as a hash - you can build a rainbow table of inputs, easily for numbers, with more difficulty for faces. If you have a limited pool of “suspects” this technique can work well. Just as with hashing, you should add a salt to the image before downsampling or blurring to make recovery of the original input more difficult. In this case the “salt” is random noise.

afwaller··on U.S. arrests former Green Beret, son, in connection with Ghosn escape from Japan
Japan is a first world country.
afwaller··on Why Does the DICOM Standard Exist?
FWIW, Innolitics has a better data dictionary (information object definitions) for DICOM than the official standards website. https://dicom.innolitics.com/ciods

DICOM has its issues, but it’s much better than HL7.

afwaller··on Unikernels: The Next Stage of Linux’s Dominance (2019)
Hey, thanks for all your work.
afwaller··on Why Zoom Chose Oracle
Zoom probably benefits heavily from access to the lobbyists and lawyers which form oracle’s core product offering.
afwaller··on 18-year-old personal website, built with Frontpage and still updated
The content is super wholesome as well.
afwaller··on Algorithm Removes Water from Underwater Images
I, personally, have picked up sand, shells, even seaweed from the ocean, and lifted it out of the water and looked at it with my eyes. I have released this technique to the world, patent free.
afwaller··on LHCb discovers matter-antimatter asymmetry in charm quarks
This "off by one" issue, combined with the problem of words related to latin "mille" for thousand in many languages, is why in money people often use K for units of "1,000", MM for units of "1,000,000", and B or sometimes BB for units of "1,000,000" (BB has no meaning as far as I'm aware, people just copy the style of MM).

Unfortunately it is likely too late to really adopt the metric system for financial transactions. But the K has crept in for thousands.

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