785 search results - page 38 / 157 » Efficient Processing of Top-k Queries in Uncertain Databases |
SIGMOD
2005
ACM
14 years 9 months ago
2005
ACM
Window queries are proving essential to data-stream processing. In this paper, we present an approach for evaluating sliding-window aggregate queries that reduces both space and c...
PVLDB
2010
13 years 3 months ago
2010
Database evolution is the process of updating the schema of a database or data warehouse (schema evolution) and evolving the data to the updated schema (data evolution). Database ...
BTW
2007
Springer
14 years 25 days ago
2007
Springer
Abstract: Content based multimedia retrieval is an important topic in database systems. An emerging and challenging topic in this area is the content based search in video data. A ...
SIGMOD
2010
ACM
13 years 3 months ago
2010
ACM
Probabilistic processes appear naturally in various contexts, with applications to Business Processes, XML data management and more. Many models for specifying and querying such p...
ICDE
2007
IEEE
14 years 10 months ago
2007
IEEE
In spite of the great progress in the data mining field in recent years, the problem of missing and uncertain data has remained a great challenge for data mining algorithms. Many ...