Recent Posts

Explicit semantic analysis with R

23 minute read

Explicit semantic analysis (ESA) was proposed by Gabrilovich and Markovitch (2007) to compute a document position in a high-dimensional concept space. At the...

NDVI, risk assessment and developing countries

7 minute read

The Normalized Difference Vegetation Index (NDVI) estimates the greenness of plants covering the surface of the Earth by measuring the light reflected by the...

Eyes on Guatemala

1 minute read

The Economist has published an article on malnutrition in Guatemala. Hunger is not new in the country, with half of the children population not eating enough...