Sciweavers

435 search results - page 35 / 87
» Querying Inconsistent Databases: Algorithms and Implementati...
Sort
View
SAC
2011
ACM
12 years 11 months ago
Site-autonomous distributed semantic caching
Semantic caching augments cached data with a semantic description of the data. These semantic descriptions can be used to improve execution time for similar queries by retrieving ...
Norvald H. Ryeng, Jon Olav Hauglid, Kjetil N&oslas...
PODS
2007
ACM
196views Database» more  PODS 2007»
14 years 9 months ago
On the complexity of managing probabilistic XML data
In [3], we introduced a framework for querying and updating probabilistic information over unordered labeled trees, the probabilistic tree model. The data model is based on trees ...
Pierre Senellart, Serge Abiteboul
VLDB
2002
ACM
98views Database» more  VLDB 2002»
13 years 8 months ago
Processing Star Queries on Hierarchically-Clustered Fact Tables
Star queries are the most prevalent kind of queries in data warehousing, OLAP and business intelligence applications. Thus, there is an imperative need for efficiently processing ...
Nikos Karayannidis, Aris Tsois, Timos K. Sellis, R...
GIS
2009
ACM
14 years 10 months ago
PROS: A Peer-to-Peer System for Location Privacy Protection on Road Networks
The k-anonymity technique is widely used to provide location privacy protection for accessing location-based services (LBS), i.e., the exact location of a query initiator is cloak...
Jie Bao 0003, Haiquan Chen, Wei-Shinn Ku
ICDE
2005
IEEE
118views Database» more  ICDE 2005»
14 years 10 months ago
Bypass Caching: Making Scientific Databases Good Network Citizens
Scientific database federations are geographically distributed and network bound. Thus, they could benefit from proxy caching. However, existing caching techniques are not suitabl...
Tanu Malik, Randal C. Burns, Amitabh Chaudhary