Archive for the 'education' Category

Today i received again an email from ACM (Association for Computing Machinery) with the subject line “An Invitation to Join ACM”. Before this, i have received numerous of those as postal letters as well as emails. This is probably caused by attending an ACM conference last year. I managed to stop getting the paper versions, but it seems as if my plea for removing my email address from ACM’s database was unheard. I never ticked a checkbox somewhere asking for monthly “invitation” emails and letters. Why is there no easy way of stopping them?

This rather annoying member recruitment practice is only a small thing that makes me feel pity and at the same time slight disgust for the organization that represents so many computer science students and professionals. Academic values like advancing the field for the sake of humanity and sharing knowledge in an open fashion seem to be replaced by careerism and exclusive content — which is ironically only accessible via horrible interfaces such as the ACM digital library. Can you believe people being lured into becoming an ACM member with a flip-flop calculator? It just seems a bit surreal.

It’s not the yearly fee that keeps me from joining. It just doesn’t appeal to me becoming a member of a cheesy elite club, that has little to do with educational, egalitarian, or emancipatory values that i would rather see embraced in computer science and academia in general. ACM is a member-based organization and ultimately — if the members choose so — it can be transformed. I sure hope it does soon.

PS: while i pick here on ACM, the critique probably equally applies to the IEEE Computer Society and the many profit-driven publishers.

It was rather silent here the last weeks, mainly because i have finished my diploma thesis recently and defended (successfully) shortly thereafter. The title of the thesis is Towards a Better VIEW: Visual Information Exploration on the Web. The core idea is the combination of multiple interactive visualization widgets or VisGets that are used to explore web content, for example, from RSS feeds. If you want to know more about it check out the thesis page, where i have put abstract, thesis, and defense slides.

Somewhat in a similar vein as the last post: danah boyd calls for a boycott of closed (i.e., not open) access journals and venues to make academia a venue for free exchange of ideas and knowledge open to anybody. She seems kind of disgusted by publishers profitting from scientists’ work while locking down their contributions in repositories that are only accessible to those who have the privilege (i.e., money or position) to do so. Instead, scholars should turn to Open Access publishers that do away with those vomitous access restrictions while still providing the peer-reviewed process.

Peter Suber points to some more options for scholars beyond comepletely boycotting closed-access publishers. One of the major one is self-archiving online – which many publishers actually allow. Putting papers on one’s own personal or research group Website is usually accepted. There are also OA repositories that facilitate the self-archiving process. Through services like CiteSeer or Google Scholar it is then possible to make these contributions available in an OA fashion without actually submitting them to an OA venue. Good thinking. Take a look or two into Peter’s short and longer primers on Open Access to learn more around OA principles and practices.

By the way, i have ranted and chanted about Open Access before.

Nächste Woche veranstalten wir, Antikriegsgruppe und fjp>media, zwei Workshops zu Software für Gegenöffentlichkeit und Selbstverwaltung. Im ersten Workshop am Mittwoch, 29. August, möchten wir uns den Grundlagen von Grafik und Layout nähern, im zweiten Workshop am Freitag, 31. August, geht es dann um Wikis und Weblogs. Beide Workshops finden im Medientreff zone! am Uniplatz statt und beginnen um 18 Uhr. Es wird kein Teilnahmebeitrag erhoben, allerdings ist eine rechtzeitige Anmeldung erforderlich. Nähere Informationen gibt es auf der Workshopseite.

Jetzt, da ich einige Prüfungen hinter mich gebracht habe, höre ich laut Regina Spektor begleitet von Klavier und Streichern und freue mich über ihre groszartigen Musikvideos mit Scherenschnitten in Samson, schwarz-weiszen Streifen- und Karomustern in Fidelity, Stop Motion in der Schule in On The Radio und Stop Motion auf Collagen in Us… Grosze Klasse.

Update: ich hab total vergessen, dass die Ente ja bereits vor fast einem halben Jahr über Regina Spektors Musikvideo für den Song Samson gebloggt hat. Der Vollständigkeit halber sei das hiermit erwähnt.

Peter Murray-Rust who participated on the panel about Open Data at WWW2007 has just been interviewed by Paul Miller for the podcast Talking with Talis talking about publishing in academic contexts and how it evolves especially in the light of what i would like to abbreviate as the {open, linked, web of} data. Anybody involved in academia or interested in the future of knowledge should read listen up on his thoughts. Also check out the elaborate list of links in the shownotes.

Today Tim Au Yeung and i have given an overview talk at the Interactions Lab of the University of Calgary, about the things we found most interesting at the WWW2007 conference. Here are the slides (PDF).

The background photo is by Paul Miller licensed under Creative Commons BY-SA license.

The 16th International World Wide Web conference is over and i am still in the phase of sorting out and getting my mind around the ideas and concepts i learned about. It was my first academic conference and it was really cool. Mez is asking on the IW3C2 blog what kind of hot trends participants have spotted during WWW2007. While i have blogged already a bit about the conference i try to do a quick personal recapitulation of the ideas and approaches i found the most fascinating.

To me the most prevalent theme was the Semantic Web – also called the Web of Data or Linked Data these days. The idea (still) is to markup and publish data in a more structured way so that it would become better accessible to computers and thus also more easily remixable for humans. While the Semantic Web might not be counted as something new anymore, it still is quite hot. It seems to me as if Semantic Web, tagging, and conventional metadata converge allowing easier and at the same time richer ways of annotating and linking resources.

A related concept is Open Data that i understood as a logical extension of Open Access and Open Source towards the realm of data, e.g. maps, scientific data, bibliographic data, going hand in hand with open/free licensing, e.g. Creative Commons. Consider a “socialized” map service that is fed by GPS enthusiasts and mashed up with other free information repositories. Think about publicly funded institutions publishing their generated data in standardized formats so that it can be reused (read: mashupped). The Semantic Web technologies are in place and more than appropriate to relate resources with each other (RDF), formulate ontologies (OWL), and query the semantic repositories (SPARQL).

At the VIP reception on Friday night i talked shortly to Tim Berners-Lee about whether Web 2.0 communities – e.g. Flickr, Delicious, Lastfm – could be decentralized using Semantic Web technologies and how community features could be implemented in this way. He said that links and backlinks (using referrer logs and/or trackback) could allow to create a social network in a decentralized way. RDF can add meaning to the links and RDF crawlers/trackers could enable search and discovery.

The four keynotes mostly focused on the increasingly interdisciplinary nature of Web research and practice. While the Web becomes an essential part of our lives its social, economic, and political aspects need to be acknowledged, studied, and understood.

After all it was awesome to be part of such a conference. I got to meet quite a few interesting and nice people. I even met with some former colleagues from Santiago from the time i did my internship last summer down in Chile.

Several other people blogged about the WWW2007 conference, e.g. Justin Thorp, Brian Kelly, Ivan Herman, Yuan Niu, Peter Murray-Rust.

Further sketchy notes with all the spelling error goodness from WWW2007: this time from the Linked Data tutorial as part of the developer track. Check other of my posts on Open Data that are related to this.

Tim Berners-Lee (W3C): Tabulator: A Semantic Web Browser (slides)
- basics about Semantic Web (RDF, …)
- Tabulator allows getting data from different sources together
- while RDF is a graph, can be outputted as tables
- allows instant mashups, e.g. using maps, timeline
- if XSLT transformation is provided any XML dialect can be integrated
- allows easy browsing of linked data

Christian Bizer (FU Berlin): Querying Wikipedia Like a Database
- DBpedia applies concept of LD to WP
- turn structured information of WP into RDF w/ open license
- and interlink with other data sources
- structured info: categorization, info boxes, inter{wiki,language}links, …
- leading to 1.6 mio concepts represented as 93 mio triples
- includes multilingual short and long abstracts
- access as SPARQL, Linked Data Interface, RDF dumps
- enabling advanced queries
- all concepts are identified as URIs
- searching of WP gets improved
- embedding WP information on webpage is easy and uptodate
- interlinking-hub for emerging web of data
- W3C SWEO Linking Open Data Project
- the Open Data movement is getting big fast

Tom Heath (KMi, The Open University): How to Combine the Best of Web2.0 and a Semantic Web: Examples from Revyu.com
- the linked data web is here
- a Web 2.0 and SW peace and love message
- integrating different soc’ networks
- open APIs? even better exposing data using SW technologies
- Web 2.0 to the rescue to make writing RDF/SW easier
- free data from walled data gardens