Towards the Managment of Time in Data-Intensive Web Sites
The adoption of a logical model for temporal, data-intensive Web sites is proposed together with a methodology for the...
On Aggregation Operators for Fuzzy Information Sources
During the development of fuzzy information systems, the aggregation fuzzy information sources should be considered. Aggregation operators are the...
Evolution of XML-Based Mediation Queries in a Data Integration System
One of the main challenges in data integration systems is the maintenance of the mappings between the mediation schema...
GML Storage: A Spatial Database Approach
GML was developed to standardize the representation of geographical data in XML, which makes the exchanging and sharing of...
TPKDB-Tree: An Index Structure for Efficient Retrieval of Future Positions of Moving Objects
By continuous growing on wireless communication technology and mobile equipments, the need for storing and processing data of moving...
Moving Point Indexing for Future Location Query
Nowadays, with a great number of mobile (moving) objects using wireless communication or GPS technology, monitoring systems having the...
Topological Consistency for Collapse Operation in Multi-scale Databases
When we derive multi-scale databases from a source spatial database, the geometries and topological relations, which are a kind...
Symbolization of Mobile Object Trajectories with the Support to Motion Data Mining
Extraction and representation of the events in trajectory data enable us go beyond the primitive and quantitative values and...
Representing and Reasoning About Spatial Knowledge Based on Spatial Relevant Logic
Almost all existing methodologies for representing and reasoning about spatial knowledge are somehow based on classical mathematical logic or...
Towards System Architecture of Spatial Information Grid and Service-Based Collaboration
Spatial information is any type of information that can be spatially referenced and it is widely used in many...
