1248 search results - page 156 / 250 » Querying and Updating the File |
CORR
2008
Springer
13 years 10 months ago
2008
Springer
Analytical queries defined on data warehouses are complex and use several join operations that are very costly, especially when run on very large data volumes. To improve response...
TKDE
2002
13 years 9 months ago
2002
A join-index is a data structure used for processing join queries in databases. Join-indices use precomputation techniques to speed up online query processing and are useful for da...
CORR
2010
Springer
13 years 8 months ago
2010
Springer
In this paper we describe a dynamic external memory data structure that supports range reporting queries in three dimensions in O(log2 B N + k B ) I/O operations, where k is the nu...
ALDT
2011
Springer
12 years 10 months ago
2011
Springer
Abstract. We develop a Bayesian approach to concept learning for crowdsourcing applications. A probabilistic belief over possible concept definitions is maintained and updated acc...
SIGMOD
1999
ACM
14 years 2 months ago
1999
ACM
Recovery can be extended to new domains at reduced logging cost by exploiting "logical" log operations. During recovery, a logical log operation may read data values fro...