664 search results - page 53 / 133 » Answering order-based queries over XML data |
DLOG
2008
15 years 9 days ago
2008
Answering queries posed over knowledge bases is a central problem in knowledge representation and database theory. In databases, query containment is one of the important query op...
163
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Reverse skyline queries over uncertain databases have many important applications such as sensor data monitoring and business planning. Due to the existence of uncertainty in many...
VLDB
2001
ACM
15 years 2 months ago
2001
ACM
Estimating the number of distinct values is a wellstudied problem, due to its frequent occurrence in queries and its importance in selecting good query plans. Previous work has sh...
135
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ICDE
2012
IEEE
13 years 9 months ago
2012
IEEE
Top-k pairs queries have received significant attention by the research community. k-closest pairs queries, k-furthest pairs queries and their variants are among the most well stu...
WIDM
2004
ACM
15 years 3 months ago
2004
ACM
We address the problem of querying XML data over a P2P network. In P2P networks, the allowed kinds of queries are usually exact-match queries over file names. We discuss the exte...