General analysis and estimate research on uncertainty of multi-scale representation of linear feature;

Research on hierarchical inter-connectivity among multi-scale representations from GIS feature;

Study on Multi-Scale Representation Model Based on R Tree and Petri Net;

In this paper,we propose a design pattern based multi-scale representation framework that encapsulate these spatial index based multi-scale algorithms and treat this framework as a middle layer between the underlying GIS SDK and up-level applications.

In recent years, to solve this kind of problem more effectively, many scholars research thoroughly in depth on multis-cale systems theory and related multi-scale representation methods and processing algorithms for the random process, this study has become the hot spot in many scien.

For the multiple sensors system,in which the uniform target at the same period is observed by the sensors with different characters at multiple scales,the notion of irregular tree is put forward and the multiscale representation is developed by the irregular second tree for the dynamic processes,utilizing the Markov statistical characteristics in most phenomena or processes.