365 search results - page 30 / 73 » Data Quality in the Database Systems Course |
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
We consider the problem of approximating sliding window joins over data streams in a data stream processing system with limited resources. In our model, we deal with resource cons...
BMCBI
2006
13 years 8 months ago
2006
Background: Many attempts are being made to understand biological subjects at a systems level. A major resource for these approaches are biological databases, storing manifold inf...
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
Schema evolution poses serious challenges in historical data management. Traditionally historical data have been archived either by (i) migrating them into the current schema vers...
CIDR
2003
13 years 10 months ago
2003
It has frequently been observed that most of the world’s data lies outside database systems. The reason is that database systems focus on structured data, leaving the unstructur...
ECRTS
2008
IEEE
14 years 3 months ago
2008
IEEE
Real-time data services can benefit data-intensive real-time applications, e.g., e-commerce, via timely transaction processing using fresh data, e.g., the current stock prices. T...