221 search results - page 15 / 45 » The cost of not knowing the radius |
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Given a positive value r, a circular range query returns the objects that lie within the distance r of the query location. In this paper, we study the circular range queries that c...
SIROCCO
2007
13 years 9 months ago
2007
Abstract. A large group of autonomous, mobile entities e.g. robots initially placed at some arbitrary node of the graph has to jointly visit all nodes (not necessarily all edges) a...
NETWORKING
2004
13 years 8 months ago
2004
Subset Difference Revocation (SDR) [8] has been proposed to perform group rekeying in a stateless manner. However, statelessness comes at a cost in terms of storage and message ove...
ICMAS
2000
13 years 8 months ago
2000
Safe exchange is a key issue in multiagent systems, especially in electronic transactions where nondelivery is a major problem. In this paper we present a unified framework for mo...
ICSOC
2009
Springer
13 years 5 months ago
2009
Springer
Several activities in service oriented computing can benefit from knowing ahead of time future properties of a given service composition. In this paper we focus on how statically i...