Sciweavers

1125 search results - page 49 / 225
» Query Answering in Inconsistent Databases
Sort
View
116
Voted
ICDE
1998
IEEE
99views Database» more  ICDE 1998»
15 years 6 months ago
Query Folding with Inclusion Dependencies
Query folding is a technique for determining how a query may be answered using a given set of resources, which may include materialized views, cached results of previous queries, ...
Jarek Gryz
124
Voted
ECAI
2008
Springer
15 years 4 months ago
Privacy-Preserving Query Answering in Logic-based Information Systems
Abstract. We study privacy guarantees for the owner of an information system who wants to share some of the information in the system with clients while keeping some other informat...
Bernardo Cuenca Grau, Ian Horrocks
PODS
2004
ACM
120views Database» more  PODS 2004»
16 years 2 months ago
Locally Consistent Transformations and Query Answering in Data Exchange
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
Marcelo Arenas, Pablo Barceló, Ronald Fagin...
108
Voted
PVLDB
2010
84views more  PVLDB 2010»
15 years 20 days ago
Processing Top-k Join Queries
We consider the problem of efficiently finding the top-k answers for join queries over web-accessible databases. Classical algorithms for finding top-k answers use branch-and-b...
Minji Wu, Laure Berti-Equille, Amélie Maria...
ICDT
2012
ACM
293views Database» more  ICDT 2012»
13 years 4 months ago
On the complexity of query answering over incomplete XML documents
Previous studies of incomplete XML documents have identified three main sources of incompleteness – in structural information, data values, and labeling – and addressed data ...
Amélie Gheerbrant, Leonid Libkin, Tony Tan