3151 search results - page 136 / 631 » Using query term order for result summarisation |
121
click to vote
CIKM
2005
Springer
15 years 10 months ago
2005
Springer
This paper shows a scheme for incremental evaluation of XPath queries. Here, we focus on a monotone fragment of XPath, i.e., when a data is deleted from (or inserted to) the datab...
141
click to vote
VLDB
1998
ACM
15 years 8 months ago
1998
ACM
The query execution engine in Microsoft SQL Server employs hash-based algorithms for inner and outer joins, semi-joins, set operations (such as intersection), grouping, and duplic...
127
click to vote
ICPPW
2006
IEEE
15 years 10 months ago
2006
IEEE
This paper describes a directed query dissemination scheme, DirQ that routes queries to the appropriate source nodes based on both constant and dynamicvalued attributes such as se...
149
click to vote
PPAM
2005
Springer
15 years 10 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...
174
click to vote
INFOSCALE
2007
ACM
15 years 6 months ago
2007
ACM
Large-scale Parallel Web Search Engines (WSEs) needs to adopt a strategy for partitioning the inverted index among a set of parallel server nodes. In this paper we are interested ...