20 février 2020

Light Commands

By Stephen Downes - Stephen's Web. Light Commands
Takeshi Sugawara, et.al., 2020/01/17
Most voice activated home assistants use micro-electro-mechanical systems (MEMS) microphones. These allow speakers to act in reverse, turning sound waves into electrical signals. Unfortunately, however, they also turn light signals into electrical signals. This means you can 'speak' to your voice assistant using pulsed light. And thus, a new way to hack home assistants was born. More...

Posté par pcassuto à 16:53 - - Permalien [#]


Guide to Digital Video Advertising

By Stephen Downes - Stephen's Web. Guide to Digital Video Advertising
Interactive Advertising Bureau, 2020/01/17
The news that Google will be disabling tracking cookies in Chrome is the smallest tip of a very complex story about internet advertsing. This long article on digital video adevrtising is the rest of it. A complex advertising ecosystem has emerged; this article describes all the standards, the players, the market (mostly US), and the technology. You may be overwhelmed, but it's worth keeping around as a reference. You can be sure some or (probably) all of this technology will inform educational content design and delivery in the longer term. More...

Posté par pcassuto à 16:52 - - Permalien [#]

A Review of Blockchain based Educational Projects

By Stephen Downes - Stephen's Web. A Review of Blockchain based Educational Projects
Bushra Hameed, et.al., International Journal of Advanced Computer Science and Applications, 2020/01/14
This article surveys a total of nine blockchain based educational projects (Edgecoin, Tutellus, Sony Global Education (SGE), TeachMePlease, SuccessLife, EchoLink (now called EKO), Blockcerts, Gradbase and OriginStamp) found in the literature and compares them with respect to the blockchain features being used and the services being offered, ultimately mapping the services to the features. More...

Posté par pcassuto à 16:48 - - Permalien [#]

Graphy

By Stephen Downes - Stephen's Web. Graphy
Blake Regalia, 2020/01/13
As the website says, "graphy is a collection of high-performance RDF libraries for JavaScript developers with a focus on usability. Each package works with both Node.js and the browser (with the help of a bundler such as Browserify or Webpack)." You would be forgiven if you've forgotten about the Resource Description Framework (RDF), which is a world wide web standard for encoding semantic data in 'triples' (subject-verb-object) using standardized vocabularies. It is still current, though, being used (for example) in Tim Berners-Lee's Social Linked Data (SoLiD) project. More...

Posté par pcassuto à 16:41 - - Permalien [#]

17 février 2020

Technology Can't Fix Algorithmic Injustice

By Stephen Downes - Stephen's Web. Technology Can't Fix Algorithmic Injustice
Annette Zimmerman, Elena Di Rosa, Hochan Kim, Boston Review, 2020/01/10
This article in Boston Review argues that democratic deliberation should take place before artificial intelligence (AI) systems are implemented in society. "A democratic critique of algorithmic injustice requires both an ex ante and an ex post perspective. In order for us to start thinking about ex post accountability in a meaningful way—that is, in a way that actually reflects the concerns and lived experiences of those most affected by algorithmic tools—we need to first make it possible for society as a whole, not just tech industry employees, to ask the deeper ex ante questions (e.g. “Should we even use weak AI in this domain at all?”)". More...

Posté par pcassuto à 09:10 - - Permalien [#]


Three years after the W3C approved a DRM standard, it's no longer possible to make a functional indie browser

By Stephen Downes - Stephen's Web. Three years after the W3C approved a DRM standard, it's no longer possible to make a functional indie browser
Cory Doctorow, BoingBoing, 2020/01/10
I don't know how much this is overstated and how much is awful truth. However, given everything a browser can do today, I would say that even without being locked out by vendors, it would be very difficult to create a new independent browser (thank goodness for Firefox). Anyhow, the culprit in the present story is the Encrypted Media Extensions, or EME, which is what enables companies like Netflix to offer secure videos. We covered EME in 2017. Though these are proprietary, the W3C agreed to make them a web standard three years ago. More...

Posté par pcassuto à 09:10 - - Permalien [#]

Cutting-edge Continuous Delivery: Automated Canary Analysis Through Spring-based Spinnaker

By Stephen Downes - Stephen's Web. Cutting-edge Continuous Delivery: Automated Canary Analysis Through Spring-based Spinnaker
Andreas Evers, InfoQ, 2020/01/10
I'm not (necessarily) going to recommend you view this presentation. It's here because reading it made my eyes roll - I recognized almost nothing in the title. I'd heard of 'continuous delivery' - that's where you continuously update your application or service using automation. But the rest? OK (takes breath). Spring is a framework for building applications in Java (Java is a programming language). Spinnaker is software that deploys applications to cloud services. Canary Analysis is a Google-supported system that evaluates prformance metrics to make sure the update was safe. More...

Posté par pcassuto à 09:09 - - Permalien [#]

What Does Technology Want?

By Stephen Downes - Stephen's Web. What Does Technology Want?
nick shackleton-jones, aconventional, 2020/01/10
The title of this post is a play on the old Kevin Kelly book, What Technology Wants. The author's one-word answer is "understanding". But what would a machine's answer be? "Perhaps what technology feels, what technology wants, is right in front of us – we just can’t relate to it: it already feels & wills but not in a way remotely like us. I find this a terrifying thought: not that technology doesn't feel, but that it feels in a way that is incomprehensible to us." This reminds me of Nagel's What is it Like to Be a Bat? We couldn't really know the answer. Same with a machine, then. More...

Posté par pcassuto à 09:08 - - Permalien [#]

The bava an A-Lister at Long Last

By Stephen Downes - Stephen's Web. The bava an A-Lister at Long Last
Jim Groom, bavatuesdays, 2020/01/07
"Do you remember when blogging was a thing and there were A-lister bloggers?" asks Jim Groom. Well, this isn't like that. This post describes a site that tests your web security - I ran it on my site as well and watched it test for various vulnerabilities and backdoors (disclosure: I'm hosted at Reclaim Hosting). More...

Posté par pcassuto à 09:01 - - Permalien [#]

N.Y. District Will Use Facial Recognition Software, Despite Big Privacy Concerns

By Stephen Downes - Stephen's Web. N.Y. District Will Use Facial Recognition Software, Despite Big Privacy Concerns
Alyson Klein, Education Week, 2020/01/06
I wouldn't exactly call this educational technology, but it's worth noting as no doubt it will eventually be used to serve an educational function. "A New York school district has announced it will begin using controversial facial recognition software for school safety purposes, over the strenuous objections of civil liberties advocates." The district is using an application called AEGIS, developed by SN Technologies a Canadian-based company that sells similar systems for hospitals, retail, banks and casinos. So, um, yay Canada? Secutiry software is big business; the AEGIS system cost the district $3.8 million, and a similar product, the Raptor Visitor Management System, is installed in 32,000 schools across the U.S. More...

Posté par pcassuto à 08:59 - - Permalien [#]