90 search results - page 4 / 18 » Continuous obstructed nearest neighbor queries in spatial da... |
TKDE
2008
13 years 7 months ago
2008
The importance of query processing over uncertain data has recently arisen due to its wide usage in many real-world applications. In the context of uncertain databases, previous wo...
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
GIS
2010
ACM
13 years 6 months ago
2010
ACM
In this paper we focus on the problem of continuously monitoring the set of Reverse k-Nearest Neighbors (RkNNs) of a query object in a moving object database using a client server...
DEXA
2007
Springer
14 years 1 months ago
2007
Springer
Due to the high frequency in location updates and the expensive cost of continuous query processing, server computation capacity and wireless communication bandwidth are the two li...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
A frequent type of query in spatial networks (e.g., road networks) is to find the K nearest neighbors (KNN) of a given query object. With these networks, the distances between ob...