2514 search results - page 49 / 503 » On the Computation of Approximations of Database Queries |
170
click to vote
VLDB
2000
ACM
15 years 9 months ago
2000
ACM
We present the TreeScape system that, unlike any other system known to the authors, enables the reuse of pre-computed aggregate query results for irregular dimension hierarchies, ...
175
click to vote
SSDBM
2002
IEEE
15 years 11 months ago
2002
IEEE
An unordered labeled tree is a tree in which each node has a string label and the parent-child relationship is significant, but the order among siblings is unimportant. This pape...
243
click to vote
SIGMOD
2012
ACM
13 years 8 months ago
2012
ACM
Computational experiments have become an integral part of the scientific method, but reproducing, archiving, and querying them is still a challenge. The first barrier to a wider...
174
click to vote
DBISP2P
2003
Springer
15 years 11 months ago
2003
Springer
In this paper we give a robust logical and computational characterisation of peer-to-peer (p2p) database systems. We first define a precise model-theoretic semantics of a p2p sys...
122
click to vote
SAC
2004
ACM
15 years 11 months ago
2004
ACM
ËØÓÖ Ò × Ø× Ò ÕÙ ÖÝ Ò Ø Ñ ´ º º¸ ×Ù × Ø ÕÙ Ö × Ø Ø ÔÖÓÚ ÐÐ ×ÙÔ Ö× Ø× Ó Ú Ò × Øµ × ÒÓÛÒ ØÓ Æ ÙÐØ Û Ø Ò Ö Ð Ø ÓÒ ...