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Search - "signal > noise"
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I started early in my childhood days, nobody had cellphone or internet here, my phone number was 3 digits long and my home country started to recover from 44 years of communism.
My first dev project was probably to copy game from newspaper to Atari 1300XE
Article listing was around 10 pages long and if you made mistake program didn’t run.
It took me a while I can’t remember how long but probably whole day and I was finally able to play it.
I don’t remember what was game about but later on I learned some BASIC from book and was able to color the screen and stuff like that.
I was about 6 years old.
I also remember that Atari computer had tape recorder where you put cassette to load game.
Some more complicated games were loading more then hour and you need to walk very carefully around or your walk can cause error and operation would fail.
Besides that there were national radio auditions about Atari where at the end they played code sound wave so you can record it on your cassette and then play software from radio on your Atari.
I never managed to do it cause I was living near military airport and pilots were practicing landing and starting above my home causing radio signal noise and breaking my software recoding.
I can probably say that highly accelerating plane could cause game loading problem and it’s not a joke.8 -
Has anyone noticed how much waffle there is in online content. You watch a 8 minute video to find out a something that could have been explained in 30 seconds.
When I was at uni one of my lecturers had a great motto. Always keep your signal to noise ratio high3 -
---WiFi Vision: X-Ray Vision using ambient WiFi signals now possible---
“X-Ray Vision” using WiFi signals isn’t new, though previous methods required knowledge of specific WiFi transmitter placements and connection to the network in question. These limitations made WiFi vision an unlikely security breach, until now.
Cybersecurity researchers at the University of California and University of Chicago have succeeded in detecting the presence and movement of human targets using only ambient WiFi signals and a smartphone.
The researchers designed and implemented a 2-step attack: the 1st step uses statistical data mining from standard off-the-shelf smartphone WiFi detection to “sniff” out WiFi transmitter placements. The 2nd step involves placement of a WiFi sniffer to continuously monitor WiFi transmissions.
Three proposed defenses to the WiFi vision attack are Geofencing, WiFi rate limiting, and signal obfuscation.
Geofencing, or reducing the spatial range of WiFi devices, is a great defense against the attack. For its advantages, however, geofencing is impractical and unlikely to be adopted by most, as the simplest geofencing tactic would also heavily degrade WiFi connectivity.
WiFi rate limiting is effective against the 2nd step attack, but not against the 1st step attack. This is a simple defense to implement, but because of the ubiquity of IoT devices, it is unlikely to be widely adopted as it would reduce the usability of such devices.
Signal obfuscation adds noise to WiFi signals, effectively neutralizing the attack. This is the most user-friendly of all proposed defenses, with minimal impact to user WiFi devices. The biggest drawback to this tactic is the increased bandwidth of WiFi consumption, though compared to the downsides of the other mentioned defenses, signal obfuscation remains the most likely to be widely adopted and optimized for this kind of attack.
For more info, please see journal article linked below.
https://arxiv.org/pdf/...9 -
Some of the smartest and brightest people I know are arrogant as fuck.
And I believe they have all the right to do so, for they have earned it.
Be kind and leechers will drain the living soul out of you.
If you aspire to achieve greatness for self, then setting boundaries is important.
This does not mean, you have to harsh to everyone, rather it's about figuring out whom to give your time and attention.9 -
Is there anything uglier than XML documentation comments? The signal to noise ratio is appalling, like an exercise in redundancy for the sake of redundancy.
/// <summary>
/// Initializes a new instance of the <see cref="CipherInfo"/> class.
/// </summary>
/// <param name="keySize">Size of the key.</param>
/// <param name="cipher">The cipher.</param>
public CipherInfo(int keySize, Func<byte[], byte[], Cipher> cipher)
{ ... }
Compare that to the equivalent markdown documentation comments:
/// Initializes a new instance of the <see cref="CipherInfo"/> class.
/// ##Parameters
/// - `keySize` - Size of the key.
/// - `cipher` - The cipher.
public CipherInfo(int keySize, Func<byte[], byte[], Cipher> cipher)
{ ... }3 -
Seems like the poisoning of the internet is coming to a head. While searching earlier for a first principles reference to answer a question with, I came across an entirely obfuscated query.
"Codd's forms of normalization"
https://google.com/search/...
In the first four pages, there are 5 results that aren't ad farms, crappy pasta tutorial sites, brand building articles, poorly understood rote regurgitation of information, quora, or some combination of all of the above.
In 2005, the top 5 would likely have contained Bell Labs, UoI, Cambridge and Oracle. Mind you, I don't think the world is getting dumber, exactly, just that the signal to noise ratio in the information sphere is getting worse and the risk from that is the world becomes markedly "dumber". The only barrier to entry anymore is how well your SEO optimization competes.
I'm obviously getting old.
/rant6