Research And Application Of Spatio-temporal Association Analysis Methods Based On NewMap API

Spatio-temporal association analysis has been widely applied to the field of spatio-temporal data analysis.With the rapid development of geographic information technology,spatio-temporal data has been fully accumulating,however there is a problem of abundant spatio-temporal data but lack of knowledge.Spatio-temporal association analysis is that study the change rules of spatial and temporal attribute objects,analyze association rules and change trend of spatio-temporal data,and predict the future spatio-temporal state.It can effectively understand the information,knowledge and wisdom behind spatio-temporal data,and has important practical significance and application value to the construction of city informatization.At present,spatio-temporal association analysis focuses on study some case,and the methods are discrete.Due to the diversity of spatio-temporal data,this analysis method lacks a generic technical framework and is difficult to reuse and expand,so the real rules behind spatio-temporal data are not well revealed.In view of the shortcomings of current research field,first,this paper proposed a technical framework of spatio-temporal association analysis based on the NewMap API,which was divided into four layers,including the demand analysis layer,the layer to storage the structured and unstructured spatio-temporal data,the analysis layer and the expression layer,and in the analysis layer proposed by combining the small particle analysis unit to forme the spatio-temporal association analysis method,and this analysis unit can not only be reused,but also can be expanded independently based on NewMap API,so as to enrich spatio-temporal association analysis method.Secondly,on the basis of the technical framework,conducted a series of research methods through spatio-temporal visualization analysis,single factor mining analysis and multi-space-time factor association analysis,and further verified the reliability of the methods used through the sample experiment.Finally,integrated the technical framework and analysis method proposed in this paper and applied to the smart spatio-temporal information cloud platform by the way of knowledge engine.The spatio-temporal association analysis method based on NewMap API has been successfully applied in the pilot project of smart Weifang construction,which fully verifies the reliability of this method in practical application.