204 search results - page 21 / 41 » Let's Evaluate Performance Algebraically |
EDBT
2012
ACM
11 years 10 months ago
2012
ACM
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
This work is a proposal for a database index structure that has been specifically designed to support the evaluation of XPath queries. As such, the index is capable to support all...
CIKM
2001
Springer
14 years 1 days ago
2001
Springer
Vocabulary incompatibilities arise when the terms used to index a document collection are largely unknown, or at least not well-known to the users who eventually search the collec...
AHSWN
2007
13 years 7 months ago
2007
— We show that simple radio propagation and node mobility models widely used in MANET evaluation are not robust in indoor environments. Robust simulation models let researchers e...
COMPGEOM
1994
ACM
13 years 11 months ago
1994
ACM
Let F be a collection of n d-variate, possibly partially defined, functions, all algebraic of some constant maximum degree. We present a randomized algorithm that computes the vert...