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.sciencedirect.com/science/article/B758F-4R53WD4-1/2/ae56bd6e7132074272ca2035be13781b
M3  - 
KW  - 2008
KW  - analysis
KW  - bibsonomy
KW  - concept
KW  - discovering
KW  - fca
KW  - folksonomy
KW  - formal
KW  - myown
KW  - tagging
KW  - taggingsurvey
L1  - 
SN  - 
N1  - ScienceDirect - Web Semantics: Science, Services and Agents on the World Wide Web : Discovering shared conceptualizations in folksonomies
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  - JOUR
AU  - Lehmann, Fritz
AU  - Wille, Rudolf
T1  - A triadic approach to formal concept analysis
JO  - Conceptual Structures: Applications, Implementation and Theory
PY  - 1995/
VL  - 
IS  - 
SP  - 32
EP  - 43
UR  - http://dx.doi.org/10.1007/3-540-60161-9_27
M3  - 
KW  - analysis
KW  - concept
KW  - fca
KW  - formal
KW  - triadic
KW  - trias
L1  - 
SN  - 
N1  - SpringerLink - Book Chapter
N1  - 
AB  - Formal Concept Analysis, developed during the last fifteen years, has been based on the dyadic understanding of a concept constituted by its extension and its intension. The pragmatic philosophy of Charles S. Peirce with his three universal categories, and experiences in data analysis, have suggested a triadic approach to Formal Concept Analysis. This approach starts with the primitive notion of a triadic context defined as a quadruple (G, M, B, Y) where G, M, and B are sets and Y is a ternary relation between G, M, and B, i.e. Y  G×M×B; the elements of G, M, and B are called objects, attributes, and conditions, respectively, and (g, m,b)  Y is read: the object g has the attribute m under (or according to) the condition b. A triadic concept of a triadic context (G, M, B, Y) is defined as a triple (A
ER  -