Actualidad

INARBE organiza este seminario que se celebrará el día 28 de mayo a las 12:00h. en la sala de conferencias del edificio Jerónimo de Ayanz.

Abstract:

The seminar introduces a comprehensive framework for evaluating both prediction error and general differences in models and data. Emphasizing the importance of context when selecting evaluation metrics, this session provides a detailed exploration of three core elements of difference: quantity, exchange, and shift. These concepts go beyond simply measuring the percentage of differences, allowing for a deeper understanding of how and why things go wrong in models, whether spatially or temporally. By categorizing these differences, attendees will gain insights into more nuanced model performance evaluation and change analysis, with applications in fields such as Remote Sensing, Land Change Science, and Geographic Information Science. Through practical examples and intuitive explanations, the workshop will demonstrate the use of these advanced metrics, highlighting their advantages over traditional approaches like the Relative Operating Characteristic (ROC) curve or the Kappa Index. Attendees will leave with a stronger grasp of how to tailor their metric choices to specific research goals and to make more informed data analysis.

Short bio:

Robert Gilmore Pontius Jr. is a Professor in Clark University’s Graduate School of Geography, specializing in Geographic Information Science (GIS) with expertise in statistics, simulation modeling, and land change science. He develops quantitative methods incorporated into the GIS software TerrSet, produced by Clark Labs, and collaborates with the Labs to improve methods for carbon offset projects aimed at reducing greenhouse gas emissions from deforestation. Pontius's research has been supported for over two decades by the U.S. National Science Foundation and NASA, focusing on ecological research and land-use change in the Brazilian Cerrado Biome. A member of the Scientific Advisory Board of MapBiomas and a Fulbright Scholar in Brazil, Pontius’s contributions to GIS and land change science have been widely cited. His popular courses on GIS and land change models, along with tutorials created by his students, have had international impact. Pontius holds degrees from the University of Pittsburgh, The Ohio State University, and the State University of New York’s College of Environmental Science and Forestry.