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» Aggregates in Possibilistic Databases
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DOLAP
2003
ACM
14 years 3 months ago
Exploiting hierarchical clustering in evaluating multidimensional aggregation queries
Multidimensional aggregation queries constitute the single most important class of queries for data warehousing applications and decision support systems. The bottleneck in the ev...
Dimitri Theodoratos
MDM
2007
Springer
195views Communications» more  MDM 2007»
14 years 4 months ago
BORA: Routing and Aggregation for Distributed Processing of Spatio-Temporal Range Queries
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...
Goce Trajcevski, Hui Ding, Peter Scheuermann, Isab...
EDBT
2009
ACM
160views Database» more  EDBT 2009»
14 years 2 months ago
Estimating aggregates in time-constrained approximate queries in Oracle
The concept of time-constrained SQL queries was introduced to address the problem of long-running SQL queries. A key approach adopted for supporting time-constrained SQL queries i...
Ying Hu, Seema Sundara, Jagannathan Srinivasan
WEBDB
2007
Springer
112views Database» more  WEBDB 2007»
14 years 4 months ago
Value-Aware RoXSum: Effective Message Aggregation for XML-Aware Information Dissemination
Publish/subscribe (or pub/sub) systems perform asynchronous message transmission, from publishers to subscribers, without any of the parties having knowledge of the other. The pub...
Zografoula Vagena, Mirella Moura Moro, Vassilis J....
3DPVT
2006
IEEE
183views Visualization» more  3DPVT 2006»
14 years 4 months ago
High-Quality Real-Time Stereo Using Adaptive Cost Aggregation and Dynamic Programming
We present a stereo algorithm that achieves high quality results while maintaining real-time performance. The key idea is simple: we introduce an adaptive aggregation step in a dy...
Liang Wang, Miao Liao, Minglun Gong, Ruigang Yang,...