2095 search results - page 12 / 419 » Modeling and Querying Semi-structured Data |
VLDB
2005
ACM
14 years 3 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...
FQAS
2006
Springer
14 years 1 months ago
2006
Springer
We present a functional model for the analysis of large volumes of detailed transactional data, accumulated over time. In our model, the data schema is an acyclic graph with a sing...
AMW
2010
13 years 11 months ago
2010
We study query authentication schemes, algorithmic and cryptographic constructions that provide efficient and secure protocols for verifying the results of queries over structured...
PERCOM
2005
ACM
14 years 3 months ago
2005
ACM
A distributed system for approximate query answering on sensor network data is proposed, where a suitable compression technique is exploited to represent data and support query an...
ICDE
1998
IEEE
14 years 11 months ago
1998
IEEE
Semistructured data may be irregular and incomplete and does not necessarily conform to a fixed schema. As with structured data, it is often desirable to maintain a history of cha...