Sciweavers

2468 search results - page 58 / 494
» Aggregation operators 2003
Sort
View
IJAHUC
2006
128views more  IJAHUC 2006»
15 years 6 months ago
Avoid 'void' in geographic routing for data aggregation in sensor networks
: Wireless sensor networks have attracted great attention in research and industrial development due to its fast-growing application potentials. New techniques must be developed fo...
Shigang Chen, Guangbin Fan, Jun-Hong Cui
NCI
2003
107views Neural Networks» more  NCI 2003»
15 years 7 months ago
Sexual Selection with Competitive/Co-operative Operators for Genetic Algorithms
In a standard genetic algorithm (GA), individuals reproduce asexually: any two organisms may be parents in crossover. Gender separation and sexual selection here inspire a model o...
Jose Sánchez-Velazco, John A. Bullinaria
GI
2003
Springer
15 years 11 months ago
IT-Sicherheit durch konsequente Aggregation von Analysewerkzeugen
: Bis heute wird die Sicherheit bei der Entwicklung von IT-Systemen eher stiefmütterlich behandelt. Die Hauptursache hierfür liegt in extrem kurzen Innovationszyklen: Unternehmen...
Thomas Schwenkler, Stephan Groß, Kai Simon
DOLAP
2004
ACM
15 years 11 months ago
An analysis of additivity in OLAP systems
Accurate summary data is of paramount concern in data warehouse systems; however, there have been few attempts to completely characterize the ability to summarize measures. The su...
John Horner, Il-Yeol Song, Peter P. Chen
DKE
2000
75views more  DKE 2000»
15 years 5 months ago
Range queries in dynamic OLAP data cubes
A range query applies an aggregation operation (e.g., SUM) over all selected cells of an OLAP data cube where the selection is speci
Weifa Liang, Hui Wang, Maria E. Orlowska