136 search results - page 13 / 28 » Optimization and Dataflow Algorithms for Nested Tree Queries |
CORR
2008
Springer
14 years 9 months ago
2008
Springer
A purely relational account of the true XQuery semantics can turn any relational database system into an XQuery processor. Compiling nested expressions of the fully compositional X...
ALT
2008
Springer
15 years 6 months ago
2008
Springer
In this paper we consider the problem of learning hidden independent cascade social networks using exact value injection queries. These queries involve activating and suppressing a...
PPAM
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorit...
74
Voted
VLDB
2001
ACM
15 years 2 months ago
2001
ACM
This paper investigates the problem of incremental joins of multiple ranked data sets when the join condition is a list of arbitrary user-defined predicates on the input tuples. ...
165
Voted
ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
Structural join operations are central to evaluating queries against XML data, and are typically responsible for consuming a lion's share of the query processing time. Thus, ...