91 search results - page 1 / 19 » Using Taxonomies to Perform Aggregated Querying over Impreci... |
ICDM
2010
IEEE
13 years 2 months ago
2010
IEEE
-- In this paper, we put forward our approach for answering aggregated queries over imprecise data using domain specific taxonomies. A new concept we call the weighted hierarchical...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
DAIS
2009
13 years 2 months ago
2009
Queries are widely used for acquiring data distributed in opportunistically formed mobile networks. However, when queries are executed in such dynamic settings, the returned result...
ICDE
2004
IEEE
14 years 6 months ago
2004
IEEE
We examine the problem of evaluating selection queries over imprecisely represented objects. Such objects are used either because they are much smaller in size than the precise on...
VLDB
2000
ACM
13 years 8 months ago
2000
ACM
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...