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CONCURRENCY
2010
95views more  CONCURRENCY 2010»
15 years 4 months ago
The Scalasca performance toolset architecture
SCALASCA is a performance toolset that has been specifically designed to analyze parallel application execution behavior on large-scale systems. It offers an incremental performan...
Markus Geimer, Felix Wolf, Brian J. N. Wylie, Erik...
EDBT
2010
ACM
184views Database» more  EDBT 2010»
16 years 27 days ago
Aggregation of asynchronous electric power consumption time series knowing the integral
More and more data mining algorithms are applied to a large number of long time series issued by many distributed sensors. The consequence of the huge volume of data is that data ...
Raja Chiky, Laurent Decreusefond, Georges Hé...
DEXA
2005
Springer
80views Database» more  DEXA 2005»
15 years 12 months ago
Optimizing I/O Costs of Multi-dimensional Queries Using Bitmap Indices
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...
Doron Rotem, Kurt Stockinger, Kesheng Wu
VLDB
2001
ACM
108views Database» more  VLDB 2001»
15 years 10 months ago
Hyperqueries: Dynamic Distributed Query Processing on the Internet
In this paper we propose a new framework for dynamic distributed query processing based on so-called HyperQueries which are essentially query evaluation sub-plans “sitting behin...
Alfons Kemper, Christian Wiesner
DOLAP
1999
ACM
15 years 10 months ago
Updating OLAP Dimensions
OLAP systems support data analysis through a multidimensional data model, according to which data facts are viewed as points in a space of application-related dimensions", or...
Carlos A. Hurtado, Alberto O. Mendelzon, Alejandro...