Selected papers of the 9th annual ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Database management systems
The DEDALE system for complex spatial queries
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Handbook of discrete and computational geometry
Handbook of discrete and computational geometry
The CCUBE constraint object-oriented database system
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
The MLPQ/GIS constraint database system
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
A relational model of data for large shared data banks
Communications of the ACM
Introduction to constraint databases
Introduction to constraint databases
Enhancing GISs for spatio-temporal reasoning
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
A Comparison of Spatio-temporal Interpolation Methods
GIScience '02 Proceedings of the Second International Conference on Geographic Information Science
A two-dimensional interpolation function for irregularly-spaced data
ACM '68 Proceedings of the 1968 23rd ACM national conference
Classes of Spatio-Temporal Objects and their Closure Properties
Annals of Mathematics and Artificial Intelligence
Database Systems Concepts
Visualization of Recursively Defined Concepts
IV '04 Proceedings of the Information Visualisation, Eighth International Conference
Fundamentals of Database Systems, Fourth Edition
Fundamentals of Database Systems, Fourth Edition
Information visualization methods for gis, constraint and spatiotemporal databases
Information visualization methods for gis, constraint and spatiotemporal databases
Guest editorial: Temporal representation and reasoning in medicine
Artificial Intelligence in Medicine
Temporal Data Classification Using Linear Classifiers
ADBIS '09 Proceedings of the 13th East European Conference on Advances in Databases and Information Systems
Classification integration and reclassification using constraint databases
Artificial Intelligence in Medicine
Temporal data classification using linear classifiers
Information Systems
Interactive visualization of hospital contact network data on multi-touch displays
Proceedings of the 3rd Mexican Workshop on Human Computer Interaction
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Objective: In this article, we propose new methods to visualize and reason about spatiotemporal epidemiological data. Background: Efficient computerized reasoning about epidemics is important to public health and national security, but it is a difficult task because epidemiological data are usually spatiotemporal, recursive, and fast changing hence hard to handle in traditional relational databases and geographic information systems. Methodology: We describe the general methods of how to (1) store epidemiological data in constraint databases, (2) handle recursive epidemiological definitions, and (3) efficiently reason about epidemiological data based on recursive and non-recursive Structured Query Language (SQL) queries. Results: We implement a particular epidemiological system called West Nile Virus Information System (WeNiVIS) that enables the visual tracking of and reasoning about the spread of the West Nile Virus (WNV) epidemic in Pennsylvania. In the system, users can do many interesting reasonings based on the spatiotemporal dataset and the recursively defined risk evaluation function through the SQL query interfaces. Conclusions: In this article, the WeNiVIS system is used to visualize and reason about the spread of West Nile Virus in Pennsylvania as a sample application. Beside this particular case, the general methodology used in the implementation of the system is also appropriate for many other applications. Our general solution for reasoning about epidemics and related spatiotemporal phenomena enables one to solve many problems similar to WNV without much modification.