大數(shù)據(jù)背景下政府統(tǒng)計(jì)數(shù)據(jù)分析及預(yù)測(cè)研究
[Abstract]:In recent years, large-scale growth of data has occurred in many fields, such as network economics, environmental science, Internet technology and so on. The society has formally entered the era of big data. The analysis algorithm can not meet the demand of the rapid growth of data. This paper mainly analyzes and studies the government statistical methods under the background of large data. The specific work arrangement is as follows. The first chapter discusses the research background, significance and literature review at home and abroad, and puts forward the research problems of this paper. The second chapter introduces the Bootstrap algorithm and Bootstrap. The improved algorithm Bag of Little Bootstrap (BLB algorithm for short) is presented. The specific idea and calculation process of the algorithm are given. It is pointed out that the BLB algorithm has high feasibility in the case of large amount of data. The method of sampling based on Bootstrap is put forward, which enlarges the sample size of data, reduces the collection frequency of price collection points, saves the cost of data acquisition, and improves the prediction precision. Referring to the method of statistical network price consumption index, the weight of CPI calculation is increased. In the fourth chapter, a regression prediction model based on Bootstrap and BLB sampling method is constructed, and the corresponding algorithm is given. The model presented in this paper reflects the advantages of Bootstrap and BLB sampling methods in statistical data processing and inference. In the fifth chapter, the regression prediction model mentioned in the fourth chapter is empirically analyzed, and the experimental results show that the Bootstrap regression algorithm has higher prediction than the traditional multiple linear regression model. The BLB regression model is applied to the prediction of CPI, which further verifies that the BLB regression model has higher accuracy than the Bootstrap regression model.
【學(xué)位授予單位】:山東科技大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:C812
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