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OTM
2005
Springer
15 years 10 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
ICMCS
2000
IEEE
171views Multimedia» more  ICMCS 2000»
15 years 9 months ago
A Probabilistic-Based Mechanism for Video Database Management Systems
As more information sources become available in multimedia systems, the development of multimedia database management systems (MDBMSs) to efficiently model and search multimedia ...
Mei-Ling Shyu, Shu-Ching Chen, Rangasami L. Kashya...
SIGMOD
2000
ACM
164views Database» more  SIGMOD 2000»
15 years 9 months ago
A Data Model and Data Structures for Moving Objects Databases
We consider spatio-temporal databases supporting spatial objects with continuously changing position and extent, termed moving objects databases. We formally define a data model f...
Luca Forlizzi, Ralf Hartmut Güting, Enrico Na...
DMKD
2000
ACM
110views Data Mining» more  DMKD 2000»
15 years 9 months ago
Combining Strategies for Extracting Relations from Text Collections
Text documents often contain valuable structured data that is hidden in regular English sentences. This data is best exploited if available as a relational table that we could use...
Eugene Agichtein, Eleazar Eskin, Luis Gravano
CVPR
2005
IEEE
16 years 6 months ago
Spatiograms versus Histograms for Region-Based Tracking
We introduce the concept of a spatiogram, which is a generalization of a histogram that includes potentially higher order moments. A histogram is a zeroth-order spatiogram, while ...
Stan Birchfield, Sriram Rangarajan