TY  - JOUR
AU  - Jäschke, Robert
AU  - Hotho, Andreas
AU  - Schmitz, Christoph
AU  - Ganter, Bernhard
AU  - Stumme, Gerd
T1  - Discovering Shared Conceptualizations in Folksonomies
JO  - Web Semantics: Science, Services and Agents on the World Wide Web
PY  - 2008/02
VL  - 6
IS  - 1
SP  - 38
EP  - 53
UR  - http://www.kde.cs.uni-kassel.de/pub/pdf/jaeschke2008discovering.pdf
M3  - 10.1016/j.websem.2007.11.004
KW  - 2008
KW  - analysis
KW  - concept
KW  - fca
KW  - folksonomy
KW  - formal
KW  - l3s
KW  - myown
KW  - ol_tut2010
KW  - tagging
KW  - top
KW  - trias
L1  - 
SN  - 
N1  - 
N1  - 
AB  - Social bookmarking tools are rapidly emerging on the Web. In such systems users are setting up lightweight conceptual structures called folksonomies. Unlike ontologies, shared conceptualizations are not formalized, but rather implicit. We present a new data mining task, the mining of all frequent tri-concepts, together with an efficient algorithm, for discovering these implicit shared conceptualizations. Our approach extends the data mining task of discovering all closed itemsets to three-dimensional data structures to allow for mining folksonomies. We provide a formal definition of the problem, and present an efficient algorithm for its solution. Finally, we show the applicability of our approach on three large real-world examples.
ER  -

TY  - CONF
AU  - Jäschke, Robert
AU  - Hotho, Andreas
AU  - Schmitz, Christoph
AU  - Stumme, Gerd
A2  - Priss, U.
A2  - Polovina, S.
A2  - Hill, R.
T1  - Analysis of the Publication Sharing Behaviour in BibSonomy
T2  - Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007)
PB  - Springer-Verlag
CY  - Berlin, Heidelberg
PY  - 2007/07
M2  - 
VL  - 4604
IS  - 
SP  - 283
EP  - 295
UR  - 
M3  - 
KW  - 2007
KW  - analysis
KW  - bibsonomy
KW  - bookmarking
KW  - fca
KW  - folksonomy
KW  - iccs
KW  - l3s
KW  - myown
KW  - ol_tut2010
KW  - social
KW  - trias
L1  - 
SN  - 3-540-73680-8
N1  - 
N1  - 
AB  - BibSonomy is a web-based social resource sharing system which allows users to organise and share bookmarks and publications in a collaborative manner. In this paper we present the system, followed by a description of the insights in the structure of its bibliographic data that we gained by applying techniques we developed in the area of Formal Concept Analysis.
ER  -

TY  - CONF
AU  - Jäschke, Robert
AU  - Hotho, Andreas
AU  - Schmitz, Christoph
AU  - Ganter, Bernhard
AU  - Stumme, Gerd
A2  - 
T1  - TRIAS - An Algorithm for Mining Iceberg Tri-Lattices
T2  - ICDM '06: Proceedings of the Sixth International Conference on Data Mining
PB  - IEEE Computer Society
CY  - Washington, DC, USA
PY  - 2006/
M2  - 
VL  - 
IS  - 
SP  - 907
EP  - 911
UR  - http://www.kde.cs.uni-kassel.de/pub/pdf/jaeschke2006trias.pdf
M3  - 10.1109/ICDM.2006.162
KW  - 2006
KW  - fca
KW  - iceberg
KW  - myown
KW  - ol_tut2010
KW  - triadic
KW  - trias
L1  - 
SN  - 0-7695-2701-9
N1  - 
N1  - 
AB  - In this paper, we present the foundations for mining frequent tri-concepts, which extend the notion of closed itemsets to three-dimensional data to allow for mining folk-sonomies. We provide a formal definition of the problem, and present an efficient algorithm for its solution as well as experimental results on a large real-world example.
ER  -

TY  - CONF
AU  - Jäschke, Robert
AU  - Hotho, Andreas
AU  - Schmitz, Christoph
AU  - Ganter, Bernhard
AU  - Stumme, Gerd
A2  - 
T1  - TRIAS - An Algorithm for Mining Iceberg Tri-Lattices
T2  - Proceedings of the 6th IEEE International Conference on Data Mining (ICDM 06)
PB  - IEEE Computer Society
CY  - Hong Kong
PY  - 2006/12
M2  - 
VL  - 
IS  - 
SP  - 907
EP  - 911
UR  - http://www.kde.cs.uni-kassel.de/pub/pdf/jaeschke2006trias.pdf
M3  - http://doi.ieeecomputersociety.org/10.1109/ICDM.2006.162
KW  - 12
KW  - 2006
KW  - algorithm
KW  - fca
KW  - iccs_example
KW  - l3s
KW  - myown
KW  - ol_tut2010
KW  - trias
KW  - trias_example
L1  - 
SN  - 0-7695-2701-9
N1  - 
N1  - 
AB  - 
ER  -