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Aug 20 2008   6:58PM GMT

Video: MIT’s OpenCourseWare — Introduction to Algorithms (Lesson 1 and 2)



Posted by: Alexander Howard
Google, programming, software, Technology, video, useful, education, college, learning, courses, free, academics, Class, public domain, tutorial, fundamentals, software development

Thanks to a friendly Creative Commons license, these introductory lectures could be uploaded to Google Video by Peteris Krumins from the host on MIT’s OpenCourseWare website. In his post about them on his blog at catonmat.net, Peter also has posted his notes on each lecture. As he notes, the first lecture is given by MIT professor Charles E. Leiserson, the “L” in the authors of the seminal book, Introduction to Algorithms. In other words, if you’re looking for an entrance point to understanding algorithms, you’ll be hard-pressed to find a better authority or context.

Here’s Lesson 1:

And here’s Lesson 2:

Thanks, Peter, and enjoy!

May 19 2008   10:29AM GMT

What is the future of the Internet?



Posted by: Alexander Howard
Networking, Web 2.0, data, Technology, Internet, commentary, education, college, learning, courses, academics, books, futurism, event, copyright, collaboration, forum, wiki, conversation, community, information, election, blogging, communications, law, government, conference, Berkmanat10

Do you think much about the future of the Internet? Last week, the academics and technologists who consider the matter professionally gathered at the Berkman Center at Harvard Law School in Cambridge, Massachusetts to hail ten years of achievement in cyberlaw and digital activisim . Check out this timeline to see how the Berkman Center has grown.

[Download a special report on 10 years at Berkman (PDF)]

Berkman at 10 combined conference with celebration, as Harvard professors, staff, alumni and guests convened for sessions that included presentations from distinguished professors, a discussion with the co-founder of Wikipedia, a panel featuring Viacom’s general counsel, a former FCC chairman and venture capitalist Ester Dyson — all within the course of the first day. Dinners, sessions in the style of an unconference, a talk about the future of journalism from TalkingPointMemo’s Joshua Micah Marshall and seminars that addressed net neutrality, netizenship and much more continued the second day, followed by a gala that honored the achievements of those who have made outstanding contributions to the Internet’s impact on society over the past decade. Winners included the founders of MideastYouth.com, Connexions, FreeRice.com, PublicResource.org, Worldspace.com. Highest honor went to Jeffrey Cunard and Bruce Keller for their pro bono work.

[Watch the archived webcasts of Berkman at 10]

The men and women considering the future of the Internet used the medium itself to meet, greet, intermingle and collectively think about the topic at hand. As you might expect at a conference packed with cyberluminaries, computer scientists, engineers, journalists and assorted digerati, the two days were an exercise in hyperconnectivity. Conferees listened in the audience, watched live video feeds from overflow rooms or participated remotely using uncommonly robust social media tools.

“The question is not freedom of speech, the question is freedom *after* speech.”
- Esther Dyson, quoting an unnamed Russian

The Berkman Center created a Berkman at 10 wiki where you can find much more information about the conference, its agenda, attendees, the sessions and the Center itself. Projects founded, funded or organized by Berkman and its Fellows have been far-reaching in their influence and are frequently grounded in the entrepreneurial focus and intellectual rigor of its founders. They include:

  • Open Net, which investigates and analyzes the various filtering and surveillance practices around the world.
  • The Publius Project, which features essays and conversations about constitutional moments on the Net.
  • Global Voices Online (GVO), which focuses on highlighting global conversations in blogs that exist outside the world of TechMeme, the “A-list” and Silicon Valley.
  • A new project of GVO is Voices Without Votes, which covers what is being discussed about the US elections throughout the world’s blogs.
  • StopBadware.org, which identifies Websites infected with spyware or malware and, with Google’s help, interjects warnings when users try to access them.

The conference was kicked off by the Dean of Harvard Law School, Elena Kagan, who announced that the Berkman Center for Internet and Society now a university-wide research center at Harvard. She also urged the crowd to lobby Jonathan Zittrain to come back to Harvard and led an impromptu chant to urge him to consider the invitation. Professor Nesson, cofounder of the Berkman Center, then introduced Professor Jonathan Zittrain, aka “JZ,” to the conference.

Professor Zittrain’s thesis is that the “generative Internet,” the combination of a programmable computer and an open, “writable” Internet, is in danger from tethered appliances like the iPhone and TiVo or walled gardens of non-portable data like Facebook. Doc Searls posted the following graphic within his “Understanding Infrastructure” article for Linux Journal:

In the PC and the network, the narrow point in the hourglass is where the generative power rests, in the Internet Protocol and the operating system. During the session, Zittrain repeatedly referred to this power as the “dark energy” of the Internet and raised concerns that the means to contribute could gradually be abridged or blocked in the future by corporations or governments through changes in the network or locking down the OS. The iPhone and other appliances like the Chumby or XBox are examples of the latter.

Further thoughts and analysis of the session can be found from Ethan Zuckerman, David Weinberger, Patrick Philippe Meier, Andy Sellars, Daithí Mac Sithigh, Dan Farber and Jim Rapoza. Zittrain’s book, “The Future of the Internet,” is available at futureoftheinternet.org.

Professor John Palfrey, the executive director of the Berkman Center, followed with a session on the impact of the Internet on politics and democracy. The presentation reached much further than the U.S. Presidential election, though the impact of YouTube, socially networked fundraising and the netroots has been far reaching domestically. He also presented three crucial arguments, each of which may be viewed and commented upon related ideas at the wiki at Berkman and is quoted below:

  1. The Internet allows more free speech from more people than ever before, but states are finding ways to filter and limit that speech.
  2. There is greater autonomy of the individual because of the Internet.
  3. The formation of online groups will alter the form and function of existing organizations and institutions with unknown impacts on democracy and governance.

Palfrey’s talk reflected many of Zittrain’s concerns: the very openness and disruptive change that a generative Internet presents for free speech may be dangerous enough to repressive regimes that technological steps, like the Great Firewall of China, may be taken to limit access or the ability to publish freely.

Palfrey presented a map of the Farsi blogosphere (above) and noted, however, that the Iranian blogosphere is the fourth largest in the world, including a range of conservative, religious, secular and liberal views. The map was produced by John Kelly and Bruce Etling for their paper, “Mapping Iran’s Online Public: Politics and Culture in the Persian Blogosphere.

One of the more intriguing notions that came out of the session was the concept of “flashdrive democracy,” where Palfrey used the example of Cuban dissidents who smuggled contraband video of student protests out of Cuba using a sneakernet and published them to YouTube.

Session notes are available from Professor Palfrey. More analysis and notes from David Weinberger’s post, Micah Sifry’s post and Daithí Mac Sithigh’s post.

In the third session of the day, Yochai Benkler, professor and author of the Wealth of Networks, interviewed Jimmy Wales, co-founder of Wikipedia. The two men deconstructed the sprawling online encyclopedia and discussed different models of peer production.

Dan Farber reported on the session and posted a transcript of Wales’ remarks on his blog. Adam Oran also wrote at length about this session at Radar.OReilly.

“The threat is not the money, the threat is the authority over knowledge.”
- Yochai Benkler

The links above are far from the only reactions to the sessions, of course. See the Center’s collection of online coverage of Berkman at 10 for more information about the unconference, panels and seminars.

Throughout the conference, participants near and far chatted over IRC, Twittered about memorable moments or useful links and used a dynamic online question tool as a live discussion board during each presentation. Hallmark technologies of “Web 1.0″ like IP, IRC, HTTP, WWW and HTML were enhanced by social media from the Web 2.0 world, like blogs, wikis, RSS feeds, microblogging and live videoblogging. Conference participants chatted live there on the IRC channel or in the virtual 3D hall on the Berkman Center’s island in Second Life. Some participants, however, still passed notes.

Berkman at 10 was chronicled using what Professor David Weinberger might term a folksonomy, a user-defined taxonomy for classifying digital content. Participants assigned digital content to the Berkman folksonomy on whatever platform they were publishing to using a #Berkman hashtag or “Berkmanat10″ tag or category.

Here are the different aggregations.


Apr 23 2008   9:27AM GMT

Better Education Through Open Source Robots



Posted by: Alexander Howard
open source, fun, cool, education, learning, courses, academics, design, invention, robotics, creativity, downloads, collaboration, tutorial, howto, blogging, fundamentals, artificial intelligence, conference

Heather Johnson is guest blogging at WhatIs.com this week. Heather is a freelance writer, as well as a monthly contributor for OEDb, a site that helps students select among accredited online schools. She invites comments and freelancing job inquiries at heatherjohnson2323@gmail.com.

There has been a lot of talk about open source hardware lately and its potential effects on research and education. ETech 2008 showcased many examples of open hardware and offered an insightful presentation [PDF] to those who are new to the emerging technology. Likewise, popular sites like Slashdot and bloggers like Scobleizer have been discussing the growing movement.

The increasing popularity of open source software has already had a tremendous influence on education and the world as a whole. Not only are many schools now making the switch to open source programs, leading universities like UC Berkeley and Carnegie Mellon are involved with developing large open source software projects.

A Scribbler Robot with BluetoothHowever, we have yet to see open hardware really take off. Ryan Singel of Wired feels that 2008 could be the year and I second that opinion. Leading the pack seems to be open source robotics, which has been embraced by several major universities.

Just last month, Willow Garage’s Steve Cousins gave a keynote speech at ETech 2008 about open source personal robots, which has brought more attention to the subject. Willow Garage is a privately funded lab that experiments with various robotics platforms.

This open source robotics movement can be felt on many college campuses as well. Carnegie Mellon, which I previously stated is involved with open source software, is also building OS personal robots. The university has recently formed a joint project called the Institute for Personal Robots in Education (IPRE).

The IPRE is a joint project between Georgia Tech and Bryn Mawr College, with sponsorship provided by Microsoft Research. Its purpose is to help advance robotics research and computer science education. The IPRE is currently selling open source robot kits, which are geared toward educators and can be integrated with computer education curricula.

Instructions can be found RobotEducation.org if you are interested in building your own educational robot.

[Image credit: RobotEducation.org]


Mar 13 2008   10:08AM GMT

Video: New Features in the Next C++ Standard



Posted by: Alexander Howard
Google, programming, Technology, useful, learning, courses, free, downloads, Development, code, information, fundamentals, software development, languages

This Google Tech Talk addresses each of the new features in the upcoming standard for C++. You can read more about them in depth at the Wikipedia entry for the new standard, C++0x.


Oct 4 2007   10:05AM GMT

IPTV update: Free classes from UCBerkeley on YouTube; BoingBoing goes to online video



Posted by: Alexander Howard
fun, video, new media, Internet, podcasting, multimedia, blog, cool, culture, college, courses, free, academics, public domain, resource, IPTV, gadgets, information, humor

As reported by the AFP, the University of California at Berkeley has created a dedicated channel on YouTube for more than 300 hours of classes and events. Videos include peace and conflicts studies, bioengineering and “Physics for Future Presidents,” though I wonder how much that last is a dig at former or current POTUSes. Given that Berkeley s a famously liberal institution, you can draw your own conclusions. You can find the courses at http://www.youtube.com/ucberkeley.

Tech fans may find gems like “SIMS 141 - Search, Google, and Life,” with Google’s Sergey Brin, to be of particular interest:


If that doesn’t meet your bar for online video goodness, you might try BoingBoing TV, a new IPTV feature hosted by cybergoddess Xeni Jardin and BoingBoing’s co-creator, Mark Frauenfelder.
The 3-5 minute segments will also feature cyberpunk author and digital copyright maven Cory Doctorow and gadgets editor Joel Johnson. The debut episodes featurethe usual mix of pop ephemera and geeky art, including a piece on Listography.com, an remix of an industrial movie from the 1960s and a robot covering Patsy Cline’s “Crazy.”

All Things Weird and Wonderful, here I come.


Sep 24 2007   12:41PM GMT

Watch the Catsters on YouTube and learn about monads, math and functional programming



Posted by: Alexander Howard
programming, video, YouTube, education, courses, free, fundamentals, languages

Ok, I admit it: calculus is now officially a decade in my past. Math, or “maths,” as the Brits put it, however, is very much in my present, considering the importance of algorithms to modern life. (For more on that, just review this thread on the growing public awareness of algorithms over on Slashdot.)

One mathematical concept that’s worth mastering is the monad. Monads, in the context of functional programming (as opposed to pure mathematics), are a useful way of expressing input/output (I/O) operations and changes in state without using language features that introduce side effects. Monads are useful in any situation where a programmer wants to carry out a purely functional computation while a related computation is performed externally. Monad also, by the way, was the codename for Window’s Powershell before it was launched, a nod to the use of monads in that highly functional scripting language.

Make sense?

If that explanation still doesn’t suffice to explain what a monad is, never fear: The Catsters have posted a series of videos on YouTube to help you master the concept!

Monads 1: An introduction to monads, including the definition and a look at the monoid monad.

Monads 2: Continuation of the monoid monad example and introduction of the category monad.


Monads 3: The definition of algebras for monads. The example of monoids as algebras for the monoid monad.


Monads 4: An appendix to Monads 3: more on monoids as algebras for the monoid monad.


Monads 5: Morphisms between algebras and the category of algebras. A first look at the question of monadicity.


If, after viewing, you’re still a bit curious about monads and programming, try Noel Winstanley’s “What the hell are Monads?” MenTaLguY also explains monads in the context of Ruby, escaping the need to work with Haskell.

Hat tip goes to the n-Category Cafe for the discovery!


May 29 2007   3:31PM GMT

Open educational resources (OER): Creating an online education commons worldwide



Posted by: Alexander Howard
Internet, useful, education, courses, free, academics, Class, public domain, books, resource, listings, ebooks

Every now and then, I’m lucky enough to meet one of our readers in person, outside of comment sections, forums, email, IM or other virtual interactions.

It’s always a pleasure to get such direct feedback. When I asked what she liked (and didn’t like) about this blog, she mentioned that she appreciated past posts about free online education resources. (Just click on our learning tag to see them all to date.)

A simple search for other similar resources turns up many other hits, of course, notably for OER. OER stands for “Open Education Resources,” an effort to create a free, globally accessible commons for educational materials. In a spirit much like that of Professor Lessig’s Creative Commons, UNESCO’s 2002 initiative encourages educators to publish learning content and the tools to create that content online, free of intellectual property considerations. You can learn more at the Open Education Conference’s Web site, if you’re interested in the movement.

As Wendy Boswell details in Technophilia, her typically brilliant column on Lifehacker, such free resources easily available online — if you know where to look. Wendy ends with where I’d begin, however, by suggesting using Google to uncover different kinds of learning content.

As Wendy points out, simply by using the right keywords, you can unearth course syllabi (insert your own subject), lectures, tutorials, notes, podcasts and online books , all through the magic of the Google search field.

When you’re done Googling, the Feds may be able to provide some help: Check out free.ed.gov for an index of different subject areas. The National Education Association also has a page full of free course materials for teachers and students.

Still want more?

FreebiesList.com has a long list of free educational resources.

Finally, in the spirit of the OER, the OpenCourseWare Consortium provides, according to their Web site, “free and open digital publication of high quality educational materials, organized as courses. The OpenCourseWare Consortium is a collaboration of more than 100 higher education institutions and associated organizations from around the world creating a broad and deep body of open educational content using a shared model.”

Did we miss any of your favorite resources? Let us know in the comments!

What new thing did you learn today?

[Image credit: MasterNewMedia.org]


Apr 17 2007   9:32PM GMT

The Massive Resource List for All Autodidacts



Posted by: Alexander Howard
education, college, learning, courses, free, academics, Class, books, resource, tutorial, ebooks, information

Jimmy Ruska has created an outstanding index of free online educational resources, which he’s called the Massive Resource List for All Autodidacts.

An autodidact, in case you’re wondering, is a self-directed learner. Wikipedia has an index of different different autodidacts in different countries.

Jimmy’s selections, which include courses, educational podcasts and much more, make it easier for all of the autodidacts out there to excel in self-directed learning.

Jimmy also has created a “Best of the Internet Today page, similar to popurls.com, and a blog that focuses on rating online video..


Apr 10 2007   3:09PM GMT

Free online courses from the Ivy League



Posted by: Alexander Howard
video, education, college, learning, courses, free, academics, Class

Yale University has announced that it is offering publicly-accessible digital videos of several courses on the Internet for free. While the courses can’t be counted towards a Yale degree, Yale did gain the distinction of being the first member of the Ivy League to focus on video lectures. Princeton and Harvard Law School have already made course materials available for free online, even offering virtual courses in Second Life. MIT, while not an Ivy, has taken the step of making all of its courses freely available to netizens.

Yale’s pilot project features seven courses, all beginning in the 2007 academic year. Examples are “Introduction to the Old Testament,” “Fundamentals of Physics” and “Introduction to Political Philosophy.” Transcripts, rendered in several languages, are available for download. This PDF describes the program in more detail.