190 search results - page 18 / 38 » Providing Diversity in K-Nearest Neighbor Query Results |
AAAI
2011
12 years 8 months ago
2011
Behind every search query is a high-level mission that the user wants to accomplish. While current search engines can often provide relevant information in response to well-speciļ...
JSS
2010
13 years 6 months ago
2010
This paper investigates a class of mobile wireless sensor networks that are unconnected most of the times; we refer to them as delayātolerant wireless sensor networks (DTWSN). T...
ISCI
2007
13 years 8 months ago
2007
In an object-relational database management system, a query optimizer requires users to provide cost models of userdeļ¬ned functions. The traditional approach is analytical, that...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
In contrast to classical databases and IR systems, real-world information systems have to deal increasingly with very vague and diverse structures for information management and s...
ADHOCNETS
2009
Springer
13 years 11 months ago
2009
Springer
Abstract. As wireless sensor networks gain in popularity, many deployments are posing new challenges due to their diverse topologies and resource constraints. Previous work has sho...