Sciweavers

161 search results - page 1 / 33
» Parsimonious temporal aggregation
Sort
View
EDBT
2009
ACM
117views Database» more  EDBT 2009»
13 years 7 months ago
Parsimonious temporal aggregation
Temporal aggregation is a crucial operator in temporal databases and has been studied in various flavors. In instant temporal aggregation (ITA) the aggregate value at time instan...
Juozas Gordevicius, Johann Gamper, Michael H. B&ou...
PR
2010
129views more  PR 2010»
13 years 2 months ago
Parsimonious reduction of Gaussian mixture models with a variational-Bayes approach
Aggregating statistical representations of classes is an important task for current trends in scaling up learning and recognition, or for addressing them in distributed infrastruc...
Pierrick Bruneau, Marc Gelgon, Fabien Picarougne
KDD
2007
ACM
165views Data Mining» more  KDD 2007»
14 years 4 months ago
Efficient and effective explanation of change in hierarchical summaries
Dimension attributes in data warehouses are typically hierarchical (e.g., geographic locations in sales data, URLs in Web traffic logs). OLAP tools are used to summarize the measu...
Deepak Agarwal, Dhiman Barman, Dimitrios Gunopulos...
TIME
2006
IEEE
13 years 10 months ago
How Would You Like to Aggregate Your Temporal Data?
Published in: Proceedings of the 13th International Symposium on Temporal Representation and Reasoning (TIME-06), Budapest, Hungary, June 2006. IEEE Computer Society Press. Real-w...
Michael H. Böhlen, Johann Gamper, Christian S...
SIGMOD
2006
ACM
128views Database» more  SIGMOD 2006»
14 years 4 months ago
Temporal aggregates and temporal universal quantification in standard SQL
Although it has been acknowledged for many years that querying and updating time-varying information using standard (i.e., non-temporal) SQL is a challenging task, the proposed te...
Esteban Zimányi