jgg     2014 34 (3):  125-128    ISSN: 0412-1961  CN: 21-1139/TG PARAMETER ESTIMATION OF VARIOGRAM MODEL BY USING  INFORMATION ENTROPY WEIGHTED REGRESSION 1）Department of Survey Engineering and Geomatics，Central South University，Changsha 410083 2）Key Laboratory of Precise Engineering Surveying ＆ Deformation Disaster Monitoring of Hunan Province， Changsha 410083 Received: 2013-09-24  Revised: null  Online: 2014-05-28 Supporting info