Web 2.0: Applications and Mechanisms
J.UCS Special Issue
Michael Granitzer
(Know-Center Graz and Graz University of Technology, Graz, Austria
mgrani@know-center.at)
Stefanie N. Lindstaedt
(Know-Center Graz and Graz University of Technology, Graz, Austria
slind@know-center.at)
This special issue features extended papers from the International
Conference on Knowledge Management and Knowledge Technologies 2010
(I-KNOW 2010) held in Graz, Austria, September, 1-3, 2010. It
comprises seven articles discussing Web 2.0 applications as well as
technical mechanisms.
The first three papers are concerned with Web 2.0 applications in
different settings. The first paper is about the
convergence of
knowledge management and Enterprise 2.0 and describes the
possibilities for an overarching exchange and transfer of knowledge
on the basis of a case study at T-Systems Multimedia Solutions in
which the decentralised development of ideas, collaboration and
assistance to performing responsibilities played a central role. On
this basis a regulatory framework as template for
systemisation/definition of Enterprise 2.0 activities was
developed. The next paper
is about a web-based application at
Siemens including knowledge references, discussion forums, and
basic social networking services in order to enhance knowledge,
experiences and best-practices sharing. The focus is on the latest
extension of the platform by micro-blogging services, whereas
motivation, experiences and advantages are comprehensibly
discussed. The third
paper explores the application of Web 2.0
technologies to support product development efforts in a global,
virtual and cross-functional setting and introduces the concept of
Engineering 2.0 as a knowledge sharing approach in virtual and
cross-functional product development teams. The results from a
cross-company study suggest how to further develop blogs, wikis,
forums and tags. Opportunities, challenges and no-go areas in this
context are highlighted.
The next four papers discuss technical mechanisms enhancing user
experience. In the first
paper the authors introduce how the integration of a tagging
module and the adoption of tag clouds aids the navigation of
hierarchical web content. As one of the limitations the pagination
effect is discussed in detail. A solution to the pagination problem is
introduced, implemented as a part of an Austrian online encyclopaedia
called Austria-Forum, and analysed. The second article is
concerned with Collaborative Filtering which is a well-known technique
in recommender systems exploiting relationships between
users. However, because of sparsity it delivers imprecise and
inaccurate results. In order to meet this problem the authors propose
a clustering approach based on social information of users.
The third paper
picks up interactive videos as an increasingly dominant feature of
media platforms and discusses its limited options as regards graphical
annotations. The authors introduce an approach that integrates
dynamics and interactivity of video annotations. The last paper in this
block is about online communities and their negative effects such as
grievances, claims and disputes. As a solution the authors introduce
new approaches to Online Dispute Resolution and provide a description
of the design and structure of Ontomedia, a web-based platform to
facilitate online mediation in different domains.
Finally, before you immerse yourself into this interesting readings,
let us thank the authors for their excellent contributions and also
thank the PC members of I-KNOW 2010 as well as external reviewers who
contributed with their reviewing efforts to this high quality special
issue.
Michael Granitzer and Stefanie N. Lindstaedt
Graz, February 2011
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