Spatiotemporal databases

Spatiotemporal databases

t-Protégé: A Temporal Extension for Protégé

Costas Vassilakis, George Lepouras, Akrivi Katifori
Technical Report TR-SSDBL-06-001, SDBS Lab, University of Peloponnese, 2006.


This work is an extension of the Protégé tool to accommodate the modeling and presentation of entity history, i.e. past values of properties and/relationships; each such value is timestamped with the period that it was (or will be) valid in the real world. To this end, the presented extension provides:


Tractable Query Answering in Indefinite Constraint Databases: Basic Results&Applications to Querying SpatioTemporal Information

M. Koubarakis and S. Skiadopoulos
T. In Proceedings of Int'l Workshop on Spatio-Temporal Database Management (STDBM'99), volume 1678 of LNCS, pages 204--223. Springer, September 1999

Research area: