基准地价评估中异常样点剔除方法研究  

Study on the Method of Eliminating the Abnormal Samples in the Assessment of Standard Land Price

作　　者：王令超[1] 杨欣[2] 宋艳华[1] 樊鹏[1] 

机构地区：[1]河南省科学院地理研究所,郑州450052 [2]平顶山学院,河南平顶山467002

出　　处：《地域研究与开发》2012年第5期103-106,121,共5页Areal Research and Development

摘　　要：分析了均值-方差法剔除异常样点的过程,指出均值-方差法存在剔除标准难以确定、无法体现级别基准地价的内在联系、破坏样点地价空间分布的连续性、影响宗地地价评估的科学性等缺陷,提出了改进完善均值-方差法的思路和方法:将样点地价与其所在位置的土地质量联系起来测算定级总分值理论地价,并将理论地价作为均值;计算样点地价的理论标准差,用理论标准差代替方差。最后,以理论均值和理论标准差为标准来判断样点地价是否异常,从而完成异常样点剔除,并应用实例对改进的均值-方差法进行验证。Firstly, analyzed the process of eliminating abnormal sample by the mean-variance methodology, pointed out the defect of the mean-variance methodology that difficult to determine exclusion criteria, unable to re- flect the relationship of different levels of the standard land price, destructing the continuity of spatial distribution of sample land price, impacting the scientific nature of land price assessment. And then put forward some train of thought and methods to improve and perfect the mean-variance methodology, that is, to link the sample land price and the quality of the same land, calculated the theoretical land price of the grading total value and took it as mean value, then calculated the theoretical standard deviation of sample land price to replace variance. Finally, taking theoretical mean valve and theoretical standard deviation as standard, eliminated the abnormal sample, and verified the improved mean-variance methodology through applying examples.

关 键 词：基准地价 样点地价 异常样点 均值 标准差 

分 类 号：F301.3[经济管理—产业经济]