620 search results - page 87 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
148
Voted
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
We propose and study a new ranking problem in versioned databases. Consider a database of versioned objects which have different valid instances along a history (e.g., documents i...
160
Voted
ISI
2002
Springer
15 years 3 months ago
2002
Springer
Dealing with large volumes of data, OLAP data cubes aggregated values are often spoiled by errors due to missing values in detailed data. This paper suggests to adjust aggregate an...
136
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ICONFERENCE
2011
14 years 10 months ago
2011
Location-Based Services (LBS) are based on a combination of the inherent location information about specific data, and/or the location information supplied by LBS clients, reques...
169
Voted
ISCAPDCS
2003
15 years 5 months ago
2003
All existing lookup algorithms in structured peerto-peer (P2P) systems assume that all peers are uniform in resources (e.g., network bandwidth, storage and CPU). Messages are rout...
159
Voted
SIGMOD
2011
ACM
14 years 6 months ago
2011
ACM
We consider extending decision support facilities toward large sophisticated networks, upon which multidimensional attributes are associated with network entities, thereby forming...