My name

Thanks to Paul for telling me about my name day: “Jörn (Der eberstarke, mutige, gute Freund)” (Jörn, the boar-strong, brave, good friend). Actually it’s fun to read the Plattdüütsch version which says as much as that it comes from Jürgen, and that one comes from Georg, but as people speaking that dialect were “mundfuul” (talk-lazy) they shortened it to Jörn :D (and i can really read it)

The English Wikipedia told me that I’m actually a village (yay, we all love RDF, don’t we? At least the de.dbpedia.org knows more.)

Oh and there’s a trainstation with my name on it.

Lovely.

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Git ad-hoc sharing

I recently found quite a cool way for easy sharing sharing of git code between two machines in a LAN or WLAN (as easy as in mercurial). The following command creates a git alias called “serve” (you only need to run this once so you don’t have to manually call git daemon ... each time):

git config --global alias.serve 'daemon --reuseaddr --base-path=. --export-all --verbose'

Get your IP with ifconfig. After this you can just cd into your code directory, (where the .git dir is)  and then run:

git serve

This will host a small git daemon (server) and you can stop it any time with CTRL+C. While still running simply run this from the fetching computer (client):

git clone git://the_server_ip/

You can also run the server in a parent directory and actually serve multiple git repositories. If you do you need to include the relative path information to the .git-dir containing directory on the client side:

git clone git://the_server_ip/your/subdirs/here/

Subsequent calls like git fetch should also work. If the IP changes just change the origin remote’s link.

For more you might want to have a look at these:
http://stackoverflow.com/questions/5817095/what-tools-exist-for-simple-one-off-sharing-of-a-git-repo
http://stackoverflow.com/questions/377213/git-serve-i-would-like-it-that-simple

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Duolingo: Learn a language and translate the web

Another one of Luis von Ahn‘s ingenious projects: http://duolingo.com learn a language for free and translate the web in the background.
There is a pretty recent TED talk by him, and below you can find their introductory video on youtube:

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Interesting talk about “Filter Bubbles”

A few days ago I stumbled over an interesting TED talk by Eli Pariser about the ever increasing personalization of the web, its search results, your facebook news feed, … Do you think that you still see the whole picture or are you already caught in your own filtered information bubble? (thx to Kingsley Idehen)

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Mac OS X Harddisk high Load Cycle Counts

Short summary: Mac OS X’s default power management settings might wear your hard drive down unnecessarily. This post provides a lot of background information and how to change these settings. Continue reading

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Live mapping of tweets, facebook msgs, emails, sms…

Reading the Wikimedia blog I stumbled over this interesting post. They mention a framework called Ushahidi (Swahili word for “testimony’) with its subproject SwitfRiver which can be used to track and verify the reliability of news concerning current trending topics, possibly helping editors of Wikipedia to enhance the quality.

Digging into I found out the framework is used for live mapping (collection, aggregation and visualization) of disaster and event related messages sent via all different kinds of transports (e.g., twitter, facebook, email, sms…). One example is the 2010 Haiti earthquake. Where it helped to coordinate all the s&r teams.

As I find it quite fascinating how much people who sit at home in their living rooms might be able to help others in a disaster region, I’d like to suggest this talk:

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LaTeX Thesis Skeleton

As it might be useful for other students (especially for computer science students at the University of Kaiserslautern), I decided to invest some time and create a skeleton for a thesis.

The project can be found on github: http://github.com/joernhees/thesis-skeleton.
I’ll happily include / pull changes.

Quick instructions to get started with your thesis:

  1. Make sure you have git, otherwise install it (e.g., on ubuntu: sudo aptitude install git-core)
  2. Run this:
    git clone git://github.com/joernhees/thesis-skeleton.git myMasterThesis

    It will create a directory called myMasterThesis in the current directory which actually is a git repository and includes a thesis directory.

  3. Enter it and have a look at thesis.pdf
  4. Insert your name, title, supervisors, etc. in thesis.tex.
  5. Get familiar with git, this is a good start.

That’s it.

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Interesting analysis of a post’s life cycle

Corte.si did it again.

This time a very interesting analysis of what happens when he posts on his blog and twitters about it.

Most interesting: the number of bots that access his page just seconds after he published it, where did the payload of human readers come from and what did it change in numbers of subscribers.

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BetterRelations (beta): some updates

Well, in a hopefully last coding “flash” this night I included some frequently requested features, most important: a “can’t decide” button:

The BetterRelations Game in action (click to play)

Enjoy ;)

(also see the first post)

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Introducing: BetterRelations – a Game with a Purpose

As many of you know I’m developing a game called BetterRelations for my MasterThesis. It is now available:

BetterRelations (alpha)

The BetterRelations Game in action (click to play)

The game collects pairwise user preferences, which are then used to rate Linked Data triples by “Importance”. Would be cool if you find time to play the game maybe in the lunch break and help me collecting the data for my thesis.

Feedback and bug reports are heartily welcome. If you know other interested players feel free to forward the link or this post, the more people, the better ;)

More to come, keep posted.

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