基于自组织数据挖掘方法的经济预警研究

目前经济预警方法主要包括指标预警、统计预警、模型预警3类，这3类方法各有优劣。模型预警法常使用ARCH模型预警与人工神经网络模型预警。将自组织数据挖掘方法引入经济预警建模过程，通过实证研究发现：自组织数据挖掘方法在经济预警研究中具有较强的学习能力，在模型变量筛选时能有效避免人为因素的影响；与人工神经网络相比较，它建立的显式模型能够反映输入指标对输出指标的具体影响状况，将有助于分析警源，排除警情。研究结果表明，自组织数据挖掘方法将为经济预警提供一种新的模型预警法。     

基于ARMA模型的广元市中区经济增长预测分析

利用广元市市中区1978年到2004年GDP数据,构建了广元市市中区时间序列趋势的ARMA模型.在此基础上,对广元市市中区2006年到2010年未来5年内的GDP进行了预测,并针对该区"十一五"规划的各项目标任务提出了一些对策建议,为广元市市中区未来的发展提供参考依据.     

关于网络用户经济效益评测模型的研究

着重讨论了网络用户经济效益的内涵以及用户的投入量和产出量，并提出了评价网络用户经济效益的指标体系，包括成本降低率，成本利润增长率、产品开发时间约率、市场占有增长率等系列指标。     

A study on structural analysis of suburban ecological and economic system

Along with the development of urban economy, the growth of urban population and the increase of needs of urban society, the suburban ecological and economic system changes constantly and profoundly in its structure and function. Intensifying the research on structural analysis of suburban ecological and economic system is of great significance for grasping light the laws governing the development and evolution of the suburban ecological and economic system and leading this system onto a path of sound circle. By making comprehensive use of the cluster analysis and latent structural analysis the author attempts to explore a new avenue of revealing the structure of suburban ecological and economic system, taking Tianjin suburbs and counties as an example. The results obtained from the above-stated analyses show that it is entirely possible and extremely effective to study the structure and function of suburban ecological and economic system and provide scientific evidence for control of this system by using mathematical methods and statistical analyses.     

Evolutionary model of free economic zones

Free economic zone (FEZ) has a long history and plays a more and more important role in the world economy. Most studies, however, focused on the theoretical analysis of benefit and cost as well as the economic role of FEZ in the less developed countries and little attention has been paid to the evolution of FEZ. This paper will improve the above-mentioned studies and put forward the structural and spatial evolutionary model of FEZ by analyzing the development of objectives, preferential policy, governance structure, industrial sectors and location of FEZs based on the international economic and political development. FEZs develop towards: 1) more comprehensive and macro objectives, 2) more industry-oriented and multi-preferential policies, 3) more cross-national and combination zones with administrative areas, 4) more technology-intensive and multi-industries, 5) more flexible location and larger spatial dimensions, 6) more rapid evolution and typologies, and 7) more economic integration to the host economy. Biography: MENG Guang-wen (1960–), male, a native of Tianjin of China, Ph.D., specialized in regional planning and policy, environmental planning, tourist planning and management. E-mail: gwmeng98@hotmail.com     

Extraction of altered minerals from Aster remote sensing data in Gongchangling iron deposit of Liaoning,China

The precision of Aster data is higher than that of Landsat series of multispectral remote sensing data, which can more accurately reveal the distribution of altered minerals. It plays an important role in prospecting, but it is rarely used in areas with complex terrain and high vegetation coverage. Based on this purpose, this study used Aster remote sensing data, and took Gongchangling iron deposit as a case study. It combined the mineral spectrum theory and the basic geologic data of the study ...     

Application of principal component analysis to evaluation of black soil degradation in Jilin

Principal Component Analysis(PCA) can simplify the structure of database by replacing multi-dimensional parameters with relatively less comprehensive variables in order to ensure the minimum lost in initial data.In this paper,eighteen black soil samples from different sites were tested and thirteen distinctive indexes were chosen to evaluate the degeneration of black soil.By using principal component analysis,variables of thirteen dimensions can be diminished to six unrelated principal indexes.Analysis shows that the soluble salt content,Fulvic acids(FA) and aggregation degree have a high weighing coefficient,indicating these three indexes are the major parts for the evaluation of black soil degradation.It also provides a new path to the degenerated black soil treatment in Northeast China.     

Application of principal component analysis to evaluation of black soil degradation in Jilin

Principal Component Analysis(PCA) can simplify the structure of database by replacing multi-dimensional parameters with relatively less comprehensive variables in order to ensure the minimum lost in initial data.In this paper,eighteen black soil samples from different sites were tested and thirteen distinctive indexes were chosen to evaluate the degeneration of black soil.By using principal component analysis,variables of thirteen dimensions can be diminished to six unrelated principal indexes.Analysis show...     

WATER QUALITY ANALYSIS AND ASSESSMENT OF RIVERS IN JILIN PROVINCE OF CHINA

ＷＡＴＥＲＱＵＡＬＩＴＹＡＮＡＬＹＳＩＳＡＮＤＡＳＳＥＳＳＭＥＮＴＯＦＲＩＶＥＲＳＩＮＪＩＬＩＮＰＲＯＶＩＮＣＥＯＦＣＨＩＮＡ￥ＷａｎｇＪｕｎ（王俊）ＺｈａｏＢａｏｚｈｏｎｇ（赵宝中）（ＤｅｐｏｒｔｍｅｎｔｏｆＥｎｖｉｒｏｎｍｅｎｔＳｃｉｅｎｃｅ，Ｎ...     

云南省迪庆州短期气候统计预测模式研究

阐述了云南省迪庆州短期气候预测系统，综合了Matlab、Accexs、VB程序设计软件各自的优点，对影响迪庆州短期气候的主要因子进行采集、筛选和分类，并对预报对象进行统计分析、检验和查询汇总，凭借其良好的扩展性设计出一个集成多种分析检验手段的业务系统。