Naser ahmadi sani

7 Questions 1 Answers 0 Followers

Questions related from Naser ahmadi sani

Kappa coefficient in SVM classification?

Why in Google Earth engine after SVM classification, despite that the overall accuracy is close to 80%, but the kappa coefficient shows zero? Where is the mistake? My code is following: var...

13 May 2021 3,901 7 View

How can use a vegetation index as an input band in classification in google earth engine?

for example, after calculation of EVI in GEE, I want to use this index as an input band in classification but I get the following message: Image.select: Pattern 'EVI' did not match any bands. What...

04 May 2021 7,744 4 View

A paper that only evaluated the original bands of satellite images for a thematic mapping?

02 May 2021 9,841 3 View

The sampling distance and number of network points to provide training samples and for accuracy assessment?

I would like to evaluate various satellite data to mapping forest density in the Zagros forests in Iran. In this regard, I want to use a systematic sampling network to provide training samples and...

26 April 2021 6,119 1 View

What are the characteristics of the sampling network and the distance between the network points and the number of samples?

What are the characteristics of the sampling network and the distance between the network points and the number of samples for preparing training samples (areas) and the points needed for the...

26 April 2021 7,314 2 View

NDVI index in my study area have only value 0 and -1(like a classified map). Does using it in maximum likelihood classification is correct and useful?

NDVI index in my study area have only value 0 and -1(like a classified map). Does using it in maximum likelihood classification along with other bands is correct and useful?

10 September 2018 1,823 3 View

ِDoes anyone know about latent heat flux algorithms?

01 January 2015 1,341 3 View