16 search results - page 3 / 4 » Weighted Hypertree Decompositions and Optimal Query Plans |
EDBT
2010
ACM
14 years 16 days ago
2010
ACM
Most modern RDBMS depend on the query processing optimizer’s cost model to choose the best execution plan for a given query. Since the physical IO (PIO) is a costly operation to...
KBSE
2009
IEEE
14 years 2 months ago
2009
IEEE
—The analysis of stakeholder requirements is a critical aspect of software engineering. A common way of specifying stakeholder requirements is in terms of a hierarchy of goals wh...
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering followed by parallelization. We focus on the parallelization phase a...
JCP
2008
13 years 7 months ago
2008
In sensor networks, continuous query is commonly used for collecting periodical data from the objects under monitoring. This sort of queries needs to be carefully designed, in orde...
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
The high quality, structured data from Web structured sources is invaluable for many applications. Hidden Web databases are not directly crawlable by Web search engines and are on...