245 search results - page 17 / 49 » Modeling and querying moving objects in networks |
ICDT
2007
ACM
14 years 2 months ago
2007
ACM
Moving objects produce trajectories. We describe a data model for trajectories and trajectory samples and an efficient way of modeling uncertainty via beads for trajectory samples....
PDPTA
2003
13 years 9 months ago
2003
— In this paper, we propose a powerful and convenient querying model, "Queryball", for users to query in immersive VR systems. In immersive VR systems, users expect int...
SSD
2001
Springer
14 years 9 days ago
2001
Springer
Recently there is much interest in moving objects databases, and data models and query languages have been proposed offering data types such as moving point and moving region toge...
SSD
2007
Springer
14 years 2 months ago
2007
Springer
In many modern applications such as biometric identification systems, sensor networks, medical imaging, geology, and multimedia databases, the data objects are not described exact...
ICDE
2005
IEEE
14 years 9 months ago
2005
IEEE
Index structures are designed to optimize search performance, while at the same time supporting efficient data updates. Although not explicit, existing index structures are typica...