589 search results - page 21 / 118 » Location-dependent query processing: Where we are and where ... |
MFCS
2009
Springer
14 years 2 months ago
2009
Springer
We study visibly pushdown automata (VPA) models for expressing and evaluating queries, expressed using MSO formulas, on words with a nesting structure (like XML documents). We de�...
SIGMOD
1999
ACM
13 years 12 months ago
1999
ACM
Several techniques that compute the join between two spatial datasets have been proposed during the last decade. Among these methods, some consider existing indices for the joined...
CN
2006
13 years 7 months ago
2006
In peer-to-peer (P2P) systems where individual peers must cooperate to process each other's requests, a useful metric for evaluating the system is how many remote requests ar...
VLDB
1998
ACM
13 years 11 months ago
1998
ACM
In a recent paper, we proposed adding a STOP AFTER clause to SQL to permit the cardinality of a query result to be explicitly limited by query writers and query tools. We demonstr...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
Semantics can be integrated in to search processing during both document analysis and querying stages. We describe a system that incorporates both, semantic annotations of Wikipedi...