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» Data Aggregation Sets in Adaptive Data Model
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DEBU
2008
90views more  DEBU 2008»
13 years 8 months ago
Data Aggregation, Heterogeneous Data Sources and Streaming Processing: How Can XQuery Help?
Software infrastructures and applications more and more must deal with data available in a variety of different storage engines, accessible through a multitude of protocols and in...
Marc Van Cappellen, Wouter Cordewiner, Carlo Innoc...
ER
2010
Springer
129views Database» more  ER 2010»
13 years 7 months ago
Specifying Aggregation Functions in Multidimensional Models with OCL
Multidimensional models are at the core of data warehouse systems, since they allow decision makers to early define the relevant information and queries that are required to satis...
Jordi Cabot, Jose-Norberto Mazón, Jes&uacut...
WWW
2007
ACM
14 years 9 months ago
Effort estimation: how valuable is it for a web company to use a cross-company data set, compared to using its own single-compan
Previous studies comparing the prediction accuracy of effort models built using Web cross- and single-company data sets have been inconclusive, and as such replicated studies are ...
Emilia Mendes, Sergio Di Martino, Filomena Ferrucc...
IDA
2009
Springer
14 years 3 months ago
How to Control Clustering Results? Flexible Clustering Aggregation
One of the most important and challenging questions in the area of clustering is how to choose the best-fitting algorithm and parameterization to obtain an optiml clustering for t...
Martin Hahmann, Peter Benjamin Volk, Frank Rosenth...
VLDB
2007
ACM
155views Database» more  VLDB 2007»
14 years 8 months ago
Answering Aggregation Queries in a Secure System Model
As more sensitive data is captured in electronic form, security becomes more and more important. Data encryption is the main technique for achieving security. While in the past en...
Tingjian Ge, Stanley B. Zdonik