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GIS
2008
ACM
15 years 7 months ago
Heuristic algorithms for route-search queries over geographical data
In a geographical route search, given search terms, the goal is to find an effective route that (1) starts at a given location, (2) ends at a given location, and (3) travels via...
Yaron Kanza, Eliyahu Safra, Yehoshua Sagiv, Yerach...
STOC
2003
ACM
193views Algorithms» more  STOC 2003»
16 years 7 months ago
Space efficient dynamic stabbing with fast queries
In dynamic stabbing, we operate on a dynamic set of intervals. A stabbing query asks for an interval containing a given point. This basic problem encodes problems such as method l...
Mikkel Thorup
EWSN
2006
Springer
16 years 6 months ago
Distributed Dynamic Shared Tree for Minimum Energy Data Aggregation of Multiple Mobile Sinks in Wireless Sensor Networks
Abstract. Sink mobility creates new challenges for several sensor network applications. In mobile sink environments, each sink must propagate its current location continuously, thr...
Kwang-il Hwang, Jeongsik In, Doo Seop Eom
MOBIHOC
2003
ACM
16 years 6 months ago
A MAC protocol for full exploitation of directional antennas in ad-hoc wireless networks
Directional antennas in ad hoc networks offer many benefits compared with classical omnidirectional antennas. The most important include significant increase of spatial reuse, cov...
Thanasis Korakis, Gentian Jakllari, Leandros Tassi...
ICDCS
2009
IEEE
16 years 3 months ago
Optimizing File Retrieval in Delay-Tolerant Content Distribution Community
In WiFi-based content distribution community infrastructure (CDCI), file servers are deployed in diverse locations around cities, caching popular files interesting to a communit...
Ying Huang, Yan Gao, Klara Nahrstedt, Wenbo He