Spatial-temporal difference equations and their application in spatial-temporal data model especially for big data

摘要

Existing spatial-temporal data models are represented in descriptive language. This paper proposes spatial-temporal difference equations which applies the spatial-temporal features to the difference equations and applies difference equations to the representation of spatial-temporal data model, making the spatial-temporal data model more formal, and finds through comparison that the storage efficiency of spatial-temporal data model based on difference equations is higher than that of the existing spatial-temporal data model. Spatial-temporal difference equations proposed in this paper can represent all types of spatial-temporal data models and store spatial-temporal data with lower storage capacity and space complexity, and thus spatial-temporal difference equations proposed in this paper are a kind of model and method exceedingly beneficial to representation and storage of spatial-temporal data, especially to those of spatial-temporal big data.