Advances in an Event-Based Spatiotemporal Data Modeling

Table 3

Description of the enriching process of the temporal hierarchy method.

Model diagram	Model characteristics
	Space-time phenomena are expressed by activity, event, and process structure, and activity records objects and their actions
Toward knowledge discovery about geographic dynamics in spatiotemporal databases [18]
	The expression of linkage complex events is achieved by introducing constraint relations into atomic events at the lowest level of spatiotemporal change semantics
A trapezoidal hierarchical description framework for spatiotemporal processes and its modeling example [19]
	The graph model used to record and express the temporal and spatial changes with complex composition structures is effectively expressed, and the evolution process of object-event-object is recorded
Research on spatiotemporal data model based on Petri net [14]