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ICFCA
2005
Springer
15 years 9 months ago
On Computing the Minimal Generator Family for Concept Lattices and Icebergs
Minimal generators (or mingen) constitute a remarkable part of the closure space landscape since they are the antipodes of the closures, i.e., minimal sets in the underlying equiva...
Kamal Nehmé, Petko Valtchev, Mohamed Rouane...
DOLAP
2004
ACM
15 years 9 months ago
Experimental evidence on partitioning in parallel data warehouses
Parallelism can be used for major performance improvement in large Data warehouses (DW) with performance and scalability challenges. A simple low-cost shared-nothing architecture ...
Pedro Furtado
APWEB
2004
Springer
15 years 9 months ago
Improving XML Query Performance Using Social Classes
In a state-of-the-art XML database, an XML query is evaluated as a sequence of structural joins in which positions of data nodes are used to perform each individual structural joi...
Weining Zhang, Douglas Pollok
PPSWR
2004
Springer
15 years 9 months ago
Calendrical Calculations with Time Partitionings and Fuzzy Time Intervals
This paper presents a piece in a big mosaic which consists of formalisms and software packages for representing and reasoning with everyday temporal notions. The kernel of the mosa...
Hans Jürgen Ohlbach
CIKM
2003
Springer
15 years 9 months ago
Dimensionality reduction using magnitude and shape approximations
High dimensional data sets are encountered in many modern database applications. The usual approach is to construct a summary of the data set through a lossy compression technique...
Ümit Y. Ogras, Hakan Ferhatosmanoglu