I was reading a paper in which Kappa Index of Agreement (KIA) was calculated. I searched the web for a reference but I couldn't find any decent definition. My first result was instead a Wikipedia article named Cohen's kappa.
Since I am not familiar with either of them and Wikipedia article does not state that Cohen's kappa is actually KIA can someone confirm the relation between those two? And if they are not the same can provide a link to a definition of Kappa Index of Agreement (KIA)?
The original paper is Detection and classification of mesoscale atmospheric phenomena above sea in SAR imagery.
P.S. I am not sure what tag should I use so feel free to edit.