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» Towards Adaptive Costing of Database Access Methods
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ESANN
2006
13 years 8 months ago
Magnification control for batch neural gas
Neural gas (NG) constitutes a very robust clustering algorithm which can be derived as stochastic gradient descent from a cost function closely connected to the quantization error...
Barbara Hammer, Alexander Hasenfuss, Thomas Villma...
EDBT
2009
ACM
119views Database» more  EDBT 2009»
13 years 10 months ago
Unrestricted wavelet synopses under maximum error bound
Constructing Haar wavelet synopses under a given approximation error has many real world applications. In this paper, we take a novel approach towards constructing unrestricted Ha...
Chaoyi Pang, Qing Zhang, David P. Hansen, Anthony ...
CIKM
2001
Springer
13 years 11 months ago
Sliding-Window Filtering: An Efficient Algorithm for Incremental Mining
We explore in this paper an effective sliding-window filtering (abbreviatedly as SWF) algorithm for incremental mining of association rules. In essence, by partitioning a transact...
Chang-Hung Lee, Cheng-Ru Lin, Ming-Syan Chen
ETRICS
2006
13 years 11 months ago
Optimized Workflow Authorization in Service Oriented Architectures
Abstract. Complex business processes are usually realized by specifying the integration and interaction of smaller modular software components. For example, hitherto monolithic ent...
Martin Wimmer, Martina-Cezara Albutiu, Alfons Kemp...
CEC
2007
IEEE
14 years 1 months ago
A fractal representation for real optimization
— The chaos game, in which a moving point is repeatedly averaged toward randomly selected vertices of a triangle, is one method of generating the fractal called the Sierpinski tr...
Daniel A. Ashlock, Justin Schonfeld