| 房地产景气预警中DI的改进及与CI的精度比较研究 |
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| 引用本文： | 李斌,丁烈云,叶艳兵. 房地产景气预警中DI的改进及与CI的精度比较研究[J]. 系统工程理论与实践, 2003, 23(1): 88-93. DOI: 10.12011/1000-6788(2003)1-88 |
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| 作者姓名： | 李斌 丁烈云 叶艳兵 |
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| 作者单位： | (1)华中科技大学土木工程与力学学院;(2)华中科技大学管理学院;(3)华中科技大学系统工程研究所 |
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| 基金项目： | 国家自然科学基金 (79870 0 5 5 ) |
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| 摘 要： | 在运用景气指数法预警、计算扩散指数 DI和合成指数 CI时 ,往往存在警度不一致并导致警情失真等弊端 ,直接影响到景气评价的科学性 .在对传统 DI计算方法进行合理改进的基础上 ,引入精度比较的概念 ,选择精度更高的指数来进行景气评价 ,有效地消除了两指数 (DI与 CI )间的矛盾冲突.
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| 关 键 词： | 景气指数 预警 精度比较 评估 |
| 文章编号： | 1000-6788(2003)01-0088-06 |
| 修稿时间： | 2001-03-15 |
The Improvement of DI and Research for Precision-comparison between DI and CI in the Early Warning System of Real Estate |
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| LI Bin,DING Lie|yun,YE Yan|bing. The Improvement of DI and Research for Precision-comparison between DI and CI in the Early Warning System of Real Estate[J]. Systems Engineering —Theory & Practice, 2003, 23(1): 88-93. DOI: 10.12011/1000-6788(2003)1-88 |
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| Authors: | LI Bin DING Lie|yun YE Yan|bing |
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| Affiliation: | (1)Huazhong University of Science and Technology;(2)Huazhong University of Science and Technology;(3)Huazhong University of Science and Technology |
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| Abstract: | The Prosperity Index method,including the diffusion index (DI) and the composite index ${(CI)}$,is a common approach to analysis the early warning. Practically, there exist some problems such as the disaccord of the warning degree between the DI and CI, leading to the error of the warning condition appraisal. In this article, based on the suitable improvement to the calculation method of the DI, the concept of "comparison of the precision " in the Early Warning System of Real Estate has been int... |
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| Keywords: | prosperity index early warning comparison of precision appraisal |
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