First Contact (Introducing xOperator)

xOperator LogoFresh from the subversion repository, our new semantic agent project xOperator is now able to play with my local OntoWiki knowledge bases. The initial development to this tool will be done by Jörg Unbehauen as part of his master thesis.

xOperator tries to create a decentralized network of trust. Information is shared in the form of resources, which can be anything (even the information that you are selling your old washing machine). In a later stage it enables you to find friends of friends like centralized services, can already. At the end of the road, xOperator might even be able to find the best product for you without the normally necessary tedious internet research. Companies will be able to offer semantic annotated information about their products, giving the customer a new way of yet unknown price transparency.


First Contact
Although xOperator is able to use any SPARQL endpoint out there, our main use case is to marry it with OntoWiki. Users should be able to use the agent just as an additional view to the knowledge bases of their OntoWiki installation.

To do this, it will be possible not only to ask the agent with special query languages like SPARQL but also to ask him with natural language. To achieve this, xOperator will map templates based on the Artificial Intelligence Markup Language (AIML) to SPARQL queries and transform the XML result set to the instant message which will be send back to the user.

Implementation Status

The agent is able to log into existing accounts and can receive querying and configuration commands. The template based query generation is still a bit quirky. Queries can only be executed against locally configured data stores, the p2p part is not yet implemented.

If you’re interested in the project, please write to the public mailing list xoperator-public in our SourceForge area. The official homepage is http://aksw.org/Projects/xOperator

Posted in DSSN, OntoWiki, xOperator | 1 Comment

DBpedia-Presentation at ISWC

Sören presented today the paper “DBpedia: A Nucleus for a Web of Open Data” at International Semantic Web Conference in Busan, Korea. You can view the slides here.

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Cofundos.org redesigned

Michael Haschke (eye48.com) redesigned Cofundos.org. We hope the new Cofundos layout is clearer, better scalable and generally more consistent. It was developed according to the guidelines of W3C’s Web Accessibility Initiative. The new theme is completely based on CSS and is largely barrier-free. Let us know, if you have remarks or see room for tweaks.

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More than 8.000 Cofundos.org visitors

Cofundos.org is now online for the first week and we would like to take the chance to thank everybody who has registered and to give you some updates.

We are very happy, that Cofundos got some coverage in news channels and blogs (e.g. Heise, linux.com and many others). Due to that, we had in the first week more than 8.000 visitors, of which more than 150 registered and created more than 40 projects and were placing roughly 100 bids amounting Euro 3700.

The numbers suggest, that most people find Cofundos interesting but maybe not yet fully comprehend the potential of pooling ideas and resources for funding open source:

Imagine if 1 Million users and people interested in open-source donate only 10 Euro a year and contribute ideas, requirements and votes, how this could accelerate the open-source movement.

In order to achieve this vision we would really appreciate your help:

  • please blog about Cofundos, put a link on your Web site and invite everybody you know to participate,
  • continue to post ideas for new projects and comment existing ones, check the projects if there is something you like and bid
  • if you posted a project idea, send a notification to relevant mailing lists, to newsgroups and people who regularly blog about related topics

In the next weeks we plan to roll out many small and large Cofundos improvements, e.g. a newly designed Web site, better integration with 3rd party Web sites & applications and much more – stay tuned.

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Open-source innovation platform Cofundos.org

Cofundos.org is a novel platform for spurring innovation and development of open-source software. It can have quite an impact on open-source and web collaboration in general: Cofundos.org is about revealing bright ideas regarding the development of open-source software and attracting a critical mass for their realization. The main idea of Cofundos.org is to share innovative (open-source) ideas, to refine them and to mobilize funding for their realization.

There exist now already a number of Web sites and services empowering its users to pool resources in order to achieve certain goals.
Pledgebank for example is a universal pledging service, whereas Fundable is a platform for goal-oriented fundraising.Change.org, tries to connect people concerned about certain causes with non-profit organizations that relate to them. And when it comes to widgets, ChipIn makes it easy to embed dynamic fundraising boxes into any website. There are a number of Facebook applications as well.

Missing so far was a platform exploiting the power of many distinctively for open-source software development. This is the aim of Cofundos.org. The concept is based on the following principles:

  • Open-knowledge and open-source. All ideas and contributions on Cofundos are licensed under a Creative Commons Attribution License. All project outcomes must be licensed under an OSI approved open-source license.
  • Reputation and community. Bright ideas and excellent solutions often originate from outstanding individuals. But it needs a community to mature these ideas and solutions and in order to bring the critical mass together for their realization.
  • Fairness and trust. An open, accountable and transparent environment will foster fair communication and trustworthy relationships between its users.
  • Big impacts can be achieved in small steps. Conceiving and realising bright ideas does not require many year developments or huge amounts of funding. Their realisation can be achieved by bringing together innovative ideas with clearly defined features and requirements based on community involvement and fostering their accomplishment by committed specialists.

In addition to these principles, Cofundus.org is entirely semantically interoperable – all (non-sensitive) content is accessible in the form of Atom, JSON feeds or as RDF export. Cofundos invites everybody to register or login using OpenId and to post software ideas, requirements or even bid for the realization of existing projects.

Cofundos is operated by the Agile Knowledge and Semantic Web research group (AKSW) at the Department of Business Information Systems at Universität Leipzig. It is supported by the collaborative research project SoftWiki and the International Association of Online Engineering.

Posted in Announcements, Cofundos | 6 Comments

CSSW is over

Two days of presentations, demos and discussions about Social Semantic Web approaches, tools and benefits are over. We had more participants than expected – social semantic collaboration seems to be indeed a hot topic. Kingsley Idehen’s keynote about the Data Web did not just excite CSSW participants but visitors of other SABRE conferences as well. We were very happy to incorporate some late breaking additions to the program, among them Santtu Toivonen’s talk about “Web on the Move – Landscapes of Mobile Social Media” and Marc Fleischmann’s inspiring sMeet presentation “sMeet – Bringing a Rich and Realistic Communication Experience to the Global Virtual Society”. CSSW concluded on Thursday with a panel discussion about obstacles and benefits of the Social Semantic Web and a come together in the restaurant Pier1 at lake Cosupden.

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CSSW started today

The Conference on Social Semantic Web, which is co-organized by AKSW started today with a keynote by Kingsley Idehen. We look forward to two days of paper presentations, demos, discussions and hands-on-work. More information about the program can be found at http://aksw.org/cssw.

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OntoWiki 0.8 and owcli 0.2 released

OntoWiki 0.8 is now available for download. Changes in this release include

  • A complete new default theme with smarter html structure and a desktop like style with windows and menus
  • Statement Based Access Control (experimental)
  • Improved RDF/XML exporter for resources and models
  • Support for hidden classes
  • Several GUI enhancements (see a complete list in the changelog)

Additionally, we’ve released the second version of our OntoWiki Command Line Interface (owcli). owcli is a php-based command line tool to administrate and manipulate OntoWiki Knowledge Bases. Changes in release 0.2 include:

You can download OntoWiki and owcli in our SF File Section.

Posted in OntoWiki, Software Releases | 2 Comments

Triple-I 2007 in Graz

Grazer Schloßberg bei Nacht
Today is the second day of the Triple-I Conference in Graz / Austria. Thomas presented the SWORE Ontology for Requirements Engineering which is part of our Softwiki project and I will present the LDAP 2 SPARQL project tomorrow.

Graz is really a nice city with many cultural places of interest and a great old city center with small alley and this castle hill.

Posted in Events, LDAP 2 SPARQL, OntoWiki | 1 Comment

DL-Learner Build 2007-08-31 released

The AKSW group announces the first release of DL-Learner, which we open sourced recently. DL-Learner is available for download at its sourceforge.net project page. Its goal is to learn class definitions from examples. To do this, it implements various learning algorithms, supports different input formats, and can make use of different OWL reasoners. DL-Learner provides a command line interface and a separately released PHP web interface.

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