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SIGMOD
1999
ACM
181views Database» more  SIGMOD 1999»
14 years 2 months ago
Approximate Computation of Multidimensional Aggregates of Sparse Data Using Wavelets
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
Jeffrey Scott Vitter, Min Wang
DOLAP
1998
ACM
14 years 2 months ago
Dynamic Maintenance of Multidimensional Range Data Partitioning for Parallel Data Processing
Star schema has been a typical model for both online transaction processing in traditional databases and online analytical processing in large data warehouses. In the star schema,...
Junping Sun, William I. Grosky
ICDE
2006
IEEE
147views Database» more  ICDE 2006»
14 years 11 months ago
VBI-Tree: A Peer-to-Peer Framework for Supporting Multi-Dimensional Indexing Schemes
Multi-dimensional data indexing has received much attention in a centralized database. However, not so much work has been done on this topic in the context of Peerto-Peer systems....
H. V. Jagadish, Beng Chin Ooi, Quang Hieu Vu, Rong...
IDEAS
1999
IEEE
123views Database» more  IDEAS 1999»
14 years 2 months ago
Improving OLAP Performance by Multidimensional Hierarchical Clustering
Data-warehousing applications cope with enormous data sets in the range of Gigabytes and Terabytes. Queries usually either select a very small set of this data or perform aggregat...
Volker Markl, Frank Ramsak, Rudolf Bayer
SAC
2006
ACM
14 years 3 months ago
Grouping and aggregation in the concept-oriented data model
In the paper we describe the problem of grouping and aggregation in the concept-oriented data model. The model is based on ordering its elements within a hierarchical multidimensi...
Alexandr A. Savinov