Application of Optimization Grouping Model Based on Weight Analysis in the Edgewise Open City in Western China: A Case Study of Yining City

The edgewise open city in western China is fast growing in recent years, through the case study of typical city - Yining, the study draws the most important influence factor: GDP, investment in fixed assets, value of foreign trade and disposable income of urban residents. Then this paper analyses them and creates the combinatorial optimization model, utilizes the analytic approach of the weight to predict the Yining city spatial expansion demanding in the following several years. Finally, the paper draws the conclusion that the city along the borderline in the west is in the elementary stage of outwards expansion at present, concern that the land-use of development need more extensive and frequent concerning in the future.