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OTM
2005
Springer
14 years 1 months ago
An Efficient Trajectory Index Structure for Moving Objects in Location-Based Services
Because moving objects usually moves on spatial networks, efficient trajectory index structures are required to gain good retrieval performance on their trajectories. However, ther...
Jae-Woo Chang, Jung-Ho Um, Wang-Chien Lee
SC
1995
ACM
13 years 11 months ago
Efficient Support of Location Transparency in Concurrent Object-Oriented Programming Languages
We describe the design of a runtime system for a fine-grained concurrent object-oriented (actor) language and its performance. The runtime system provides considerable flexibility...
WooYoung Kim, Gul Agha
DEXA
2008
Springer
85views Database» more  DEXA 2008»
13 years 9 months ago
Reordering of Location Identifiers for Indexing an RFID Tag Object Database
The query performance for tracing tags depends upon the distribution of tag trajectories in the data space. We examine a more efficient representation of tag trajectories by means ...
Sungwoo Ahn, Bonghee Hong
SCALESPACE
1999
Springer
13 years 12 months ago
Fast Marching to Moving Object Location
In this paper we address two important problems in motion analysis: the detection of moving objects and their localization. Statistical and level set approaches are adopted in orde...
Eftychios Sifakis, George Tziritas