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Behaviour agreement among the two graders (top section) and quality of the system compared to the two graders (middle and bottom sections) on Dataset A (higher values are better ).

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posted on 2013-09-16, 02:18 authored by Luca Giancardo, Diego Sona, Huiping Huang, Sara Sannino, Francesca Managò, Diego Scheggia, Francesco Papaleo, Vittorio Murino

The agreement is computed on a frame-by-frame basis. Each value represents the percentage of frames with class agreement. The different columns show the results for different types of behaviours:

accuracy on all behaviours considered separately;

accuracy on behaviours grouped into social and non-social meta-classes;

precision on the social behaviours;

°precision on the non-social behaviours. Accuracy = (TP+TN)/(TP+TN+FN+FP) and Precision = TP/(TP+FP) where TP = True Positive, FP = False Positive, FN = False Negative and TN = True Negative. The average agreement grader/system is comparable to the average grader/grader agreement.

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