A Suite of Tools for Assessing Thematic Map Accuracy
Joint Authors
Ghilardi, Adrián
Loya-Carrillo, Jaime Octavio
Martínez, Silvia
Pérez-Vega, Azucena
Mas, Jean-François
Vega, Ernesto
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Although land use/cover maps are widely used to support management and environmental policies, only some studies have reported their accuracy using sound and complete assessments.
Thematic map accuracy assessment is typically achieved by comparing reference sites labeled with the “ground-truth” category to the ones depicted in the land use/cover map.
A variety of sampling designs are used to select these references sites.
The estimators for accuracy indices and the variance of these estimators depend on the sampling design.
However, the tools used to assess accuracy available in the main program packages compute the accuracy indices without taking into account the sampling and give inconsistent estimates.
As an alternative, we present free user-friendly tools that enable users beyond the Geographic Information Science Community to compute accuracy indices and estimate corrected areas of given categories with their respective confidence intervals.
The tool runs in Dinamica EGO, a free platform for environmental spatial modeling as well as a Q-GIS plugin and a R package.
Additionally, a practical application example is described using a case study area in central-west Mexico.
American Psychological Association (APA)
Mas, Jean-François& Pérez-Vega, Azucena& Ghilardi, Adrián& Martínez, Silvia& Loya-Carrillo, Jaime Octavio& Vega, Ernesto. 2014. A Suite of Tools for Assessing Thematic Map Accuracy. Geography Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-466839
Modern Language Association (MLA)
Mas, Jean-François…[et al.]. A Suite of Tools for Assessing Thematic Map Accuracy. Geography Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-466839
American Medical Association (AMA)
Mas, Jean-François& Pérez-Vega, Azucena& Ghilardi, Adrián& Martínez, Silvia& Loya-Carrillo, Jaime Octavio& Vega, Ernesto. A Suite of Tools for Assessing Thematic Map Accuracy. Geography Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-466839
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-466839