2217 search results - page 132 / 444 » Rank-aware Query Optimization |
216
click to vote
SIGIR
2012
ACM
13 years 8 months ago
2012
ACM
Versioned document collections are collections that contain multiple versions of each document. Important examples are Web archives, Wikipedia and other wikis, or source code and ...
163
click to vote
SEBD
1996
15 years 7 months ago
1996
Abstract. To select an optimal query evaluation strategy for a path query in an object-oriented database system one has to exploit the available index structures on the path. In a ...
133
click to vote
ICDT
1999
ACM
15 years 10 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
199
click to vote
ADL
2000
Springer
15 years 10 months ago
2000
Springer
We address the problem of tight XML schemas and propose regular tree automata to model XML data. We show that the tree automata model is more powerful that the XML DTDs and is clo...
170
click to vote
PVLDB
2008
15 years 5 months ago
2008
We study the problem of extracting flattened tuple data from streaming, hierarchical XML data. Tuple-extraction queries are essentially XML pattern queries with multiple extractio...