785 search results - page 21 / 157 » Efficient Processing of Top-k Queries in Uncertain Databases |
MDM
2004
Springer
14 years 2 months ago
2004
Springer
In this paper, we consider a data model for uncertain trajectories of moving objects. In our model, the trajectory is a vector of uniform stochastic processes. We study “univers...
SIGMOD
2011
ACM
12 years 11 months ago
2011
ACM
Probabilistic database systems have successfully established themselves as a tool for managing uncertain data. However, much of the research in this area has focused on efficient...
BTW
2007
Springer
2007
Springer
TopX - Efficient and Versatile Top-k Query Process-ing for Text, Semistructured, and Structured Data
14 years 23 days ago
: This paper presents a comprehensive overview of the TopX search engine, an extensive framework for unified indexing and querying large collections of unstructured, semistructured...
SIGMOD
2003
ACM
14 years 9 months ago
2003
ACM
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
WSDM
2009
ACM
14 years 3 months ago
2009
ACM
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...