Volume 76 (2023)
Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 71 (2018)
Volume 70 (2017)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Investigating the effectiveness of resampling algorithms in improving the classification of unbalanced data in digital soil mapping

Fatemeh Ebrahimi Meymand; Hasan Ramezanpour; Nafiseh Yaghmaeian; Kamran Eftekhari

Volume 76, Issue 2 , August 2023, , Pages 159-176


  In recent years, the use of digital soil mapping (DSM) based on machine learning algorithms with the aim of preparing soil maps has become widespread with the basis of soil class prediction with the help of modeling the relationships between them and environmental variables. One of this method's challenges ...  Read More

Optimization of sample unit’s shape and size to enhancing precision and accuracy of density estimation of Astragalus verus in Mayan rangeland, Mashhad

zahra zangane; Kamalaldin Naseri; Fereydoon Mellati; Mansoor Mesdaghi

Volume 68, Issue 1 , June 2015, , Pages 81-94


  Because plant density is often measured by using plots and also in most cases are done by the method of estimation and counting the individuals, so one of the important cases that we have to decide on is the size and shape of plot. In this research, the density of Astragalus verus that it's one of the ...  Read More