435 search results - page 15 / 87 » Querying Inconsistent Databases: Algorithms and Implementati... |
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
ESA
2010
Springer
13 years 8 months ago
2010
Springer
Text search engines return a set of k documents ranked by similarity to a query. Typically, documents and queries are drawn from natural language text, which can readily be partiti...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Top-k processing in uncertain databases is semantically and computationally different from traditional top-k processing. The interplay between query scores and data uncertainty ma...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
XML databases often contain documents comprising structured text. Therefore, it is important to integrate "information retrieval style" query evaluation, which is well-s...
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...