Publications
Das Entstehen von Semantik in BibSonomy
Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G.
, 'Social Software in der Wertschöpfung', Nomos, Baden-Baden (2006) [pdf]
Immer mehr Soziale-Lesezeichen-Systeme entstehen im heutigen Web. In solchen Systemen erstellen die Nutzer leichtgewichtige begriffliche Strukturen, so genannte Folksonomies. Ihren Erfolg verdanken sie der Tatsache, dass man keine speziellen Fähigkeiten benötigt, um an der Gestaltung mitzuwirken. In diesem Artikel beschreiben wir unser System BibSonomy. Es erlaubt das Speichern, Verwalten und Austauschen sowohl von Lesezeichen (Bookmarks) als auch von Literaturreferenzen in Form von BibTeX-Einträgen. Die Entwicklung des verwendeten Vokabulars und der damit einhergehenden Entstehung einer gemeinsamen Semantik wird detailliert diskutiert.
Emergent Semantics in BibSonomy
Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G.
Hochberger, C. & Liskowsky, R., ed., 'Informatik 2006 -- Informatik für Menschen. Band 2', P-94(), Lecture Notes in Informatics, Gesellschaft für Informatik, Bonn (2006) [pdf]
Social bookmark tools are rapidly emerging on the Web. In such
stems users are setting up lightweight conceptual structures
lled folksonomies. The reason for their immediate success is the
ct that no specific skills are needed for participating. In this
per we specify a formal model for folksonomies, briefly describe
r own system BibSonomy,
ich allows for sharing both bookmarks and
blication references,
d discuss first steps towards emergent semantics.
Trend Detection in Folksonomies
Hotho, A.; Jäschke, R.; Schmitz, C. & Stumme, G.
Avrithis, Y. S.; Kompatsiaris, Y.; Staab, S. & O'Connor, N. E., ed., 'Proc. First International Conference on Semantics And Digital Media Technology (SAMT) ', 4306(), LNCS, Springer, Heidelberg, 56-70 (2006) [pdf]
As the number of resources on the web exceeds by far the number of
cuments one can track, it becomes increasingly difficult to remain
to date on ones own areas of interest. The problem becomes more
vere with the increasing fraction of multimedia data, from which
is difficult to extract some conceptual description of their
ntents.

ne way to overcome this problem are social bookmark tools, which
e rapidly emerging on the web. In such systems, users are setting
lightweight conceptual structures called folksonomies, and
ercome thus the knowledge acquisition bottleneck. As more and more
ople participate in the effort, the use of a common vocabulary
comes more and more stable. We present an approach for discovering
pic-specific trends within folksonomies. It is based on a
fferential adaptation of the PageRank algorithm to the triadic
pergraph structure of a folksonomy. The approach allows for any
nd of data, as it does not rely on the internal structure of the
cuments. In particular, this allows to consider different data
pes in the same analysis step. We run experiments on a large-scale
al-world snapshot of a social bookmarking system.