549 search results - page 28 / 110 » Data Expiration and Aggregate Queries |
SAC
2006
ACM
15 years 5 months ago
2006
ACM
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...
104
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DIS
2001
Springer
15 years 4 months ago
2001
Springer
Rapid growth of digital data collections is overwhelming the capabilities of humans to comprehend them without aid. The extraction of useful data from large raw data sets is someth...
CORR
2010
Springer
14 years 12 months ago
2010
Springer
: - In this paper we present several novel efficient techniques and multidimensional data structures which can improve the decision making process in many domains. We consider onli...
102
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SIGMOD
1997
ACM
15 years 4 months ago
1997
ACM
A range query applies an aggregation operation over all selected cells of an OLAP data cube where the selection is speci ed by providing ranges of values for numeric dimensions. W...
102
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IDEAS
1999
IEEE
15 years 4 months ago
1999
IEEE
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...