17 février 2020

Insights From Instructure Preliminary Proxy Statement

By Stephen Downes - Stephen's Web. Insights From Instructure Preliminary Proxy Statement
Phil Hill, Phil on Ed Tech, 2020/01/06
I don't want to linger too much on the Instructure sale, but on the other hand, the revelations can't be ignored. As Phil Hill writes, the Board has already decided to make it "a “Rule of 40” software company with a combined growth rate and profit margin of at least 40%." Additionally, "there is no view to show whether Bridge is dead or alive." And of course, "he size of payouts for the executive team seems remarkable, especially as most of that team was hired in the past year or two to improve the Bridge corporate learning market more than the Canvas academic market". More...

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


My Best Photos of 2019

By Stephen Downes - Stephen's Web. My Best Photos of 2019
Stephen Downes, Flickr, 2019/12/31


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These photos are my best of 2019. Please enjoy. Meanwhile, I'm pleased to be included in this list by George Siemens, and not to be included in this list by Audrey Watters.

Web: [Direct Link]. More...

Posté par pcassuto à 08:54 - - Permalien [#]

Unity vs Unreal Engine for XR Development: Which One Is Better?

By Stephen Downes - Stephen's Web. Unity vs Unreal Engine for XR Development: Which One Is Better?
Dejan Gajsek, Circuit Stream, 2019/12/30
The answer is, as it always is in comparisons like this, it depends. The article offers a quick outline of each engine, compares the asset stores, links to documentation and training, talks about the development community, illutrtes (with examples) the development process, and notes that "there’s one major difference between UE4 and Unity3D. Unreal Engine 4 is an open source engine. Unity3D is not." Also, Unreal is based on C++, while Unity is based on C#. More...

Posté par pcassuto à 08:52 - - Permalien [#]

'No Man's Sky VR' is the purest way to explore the universe

By Stephen Downes - Stephen's Web. 'No Man's Sky VR' is the purest way to explore the universe
Jessica Conditt, Engadget, 2019/04/04
I've been playing No Man's Sky since almost the day it launched and this is the upgrade I've been waiting for: VR. The game had a rocky launch; it was basically just a sketchy universe and some controls. But the potential was obvious even then. No, according to this report. this summer's update will include for virtual reality. More...

Posté par pcassuto à 08:48 - - Permalien [#]

YouTube Executives Ignored Warnings, Letting Toxic Videos Run Rampant

By Stephen Downes - Stephen's Web. YouTube Executives Ignored Warnings, Letting Toxic Videos Run Rampant
Mark Bergen, Bloomberg, 2019/04/03
Make no mistake. I think YouTube is a fantastic resource. But it has problems because of the way it rewards engagement and views, and because it's recommendation engine can be manipulated by controversy and outrage. "The massive 'library,' generated by users with little editorial oversight, is bound to have untrue nonsense. Instead, YouTube’s problem is that it allows the nonsense to flourish. And, in some cases, through its powerful artificial intelligence system, it even provides the fuel that lets it spread." Good article. More...

Posté par pcassuto à 08:43 - - Permalien [#]


14 février 2020

The future of high-speed computing may be larger CPUs with optics

By Stephen Downes - Stephen's Web. The future of high-speed computing may be larger CPUs with optics
Chris Lee, Ars Technica, 2020/01/02
This is pretty far down the ed tech stack, but I want to take note because I've been seeing an increase in the number of events in this area lately. The area in question could be described under the general heading of 'optical computing'. The idea is to use light-based components, rather than electricity-based components. There are numerous issues that have been solved, and many more to go, but the potential is for faster and more energy-efficient computers. This article is from last April - what prompted me to cover optical computing today was an ed tech review of an 'optica' computer (which as it turned out has nothing to do with optical computing). More...

Posté par pcassuto à 15:19 - - Permalien [#]

The 100 Worst Ed-Tech Debacles of the Decade

By Stephen Downes - Stephen's Web. The 100 Worst Ed-Tech Debacles of the Decade
Audrey Watters, Hack Education, 2020/01/02
I've been seeing a lot of praise for Audrey Watters's post The 100 Worst Ed-Tech Debacles of the Decade (these Tweets captured by Aaron Davis are typical). If you haven't seen it, take this as a reminder to put it on your weekend reading list. More...

Posté par pcassuto à 15:19 - - Permalien [#]

Scaling MySQL at YouTube

By Stephen Downes - Stephen's Web. Scaling MySQL at YouTube
YouTube serves 100 million videos in a single day. It manages this daya with MySQL, an open source database engine. Which makes you wonder about the justifications for Oracle and MS-SQL. Anyhow, serving 100million videos, even with MySQL, is not without its, challenges, and that's the subject of this podcast. More...

Posté par pcassuto à 14:07 - - Permalien [#]

CC Launches Two New Licensing Projects

By Stephen Downes - Stephen's Web. CC Launches Two New Licensing Projects
Creative Commons is reloeasing two new types of license, CC+ ("a protocol to enable a simple way for users to get rights beyond the rights granted by a CC license" such as commercial licensing), and CC0 (a more robust waiving of rights a way to place your work unambiguously into the public domain). Both remain sort of under development. Meanwhile, an organization called Talis is cooperating with Creative Commons to create the Open Data Commons Public Domain Dedication and Licence, which will address the legalities of sharing data. More...

Posté par pcassuto à 11:39 - - Permalien [#]

Cool URIs for the Semantic Web

By Stephen Downes - Stephen's Web. Cool URIs for the Semantic Web
Some of this W3C doment discussion seems to be echoing some of the discussion about open social networks. It's nigh well time. "RDF allows the users to describe Web documents and resources from the real world-people, organisations, things-in a computer-processable way. Publishing such descriptions on the Web creates the Semantic Web. URIs (Uniform Resource Identifiers) are very important". More...

Posté par pcassuto à 09:11 - - Permalien [#]