Research on Data Modeling in Spatio-temporal Databases
Xiaolin Qin · Jisuanji gongcheng · 2004
This paper discusses the technology of spatio-temporal modeling in spatio-temporal databases. Early data models use a set of geometry- based spatial objects to represent reality and important characteristics are represented as attributes of spatial objects. Temporal information is either associated with time-stamped individual layers, or individual spatial objects. Further development has provided new models, such as event-based or object-oriented data models. This paper examines these typical spatio-temporal data models, and discusses their applicability to facilitate spatio- temporal analytical modeling. It also introduces the data type modeling of moving objects, and the two-level AVL-tree spatial-temporal data model based on realms in spatio-temporal DBMS-STADBS.