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Correction: F-Formation Detection: Individuating Free-Standing Conversational Groups in Images

  • Francesco Setti,
  • Chris Russell,
  • Chiara Bassetti,
  • Marco Cristani

Correction: F-Formation Detection: Individuating Free-Standing Conversational Groups in Images

  • Francesco Setti, 
  • Chris Russell, 
  • Chiara Bassetti, 
  • Marco Cristani
PLOS
x

There is an error in the first sentence of the Evaluation Metrics subsection of the Experiments section. The correct sentence is: As accuracy measures, we adopt the metrics proposed in [3] and extended in [12]: we consider a group as correctly estimated if at least ⌈(T ⋅ ∣G∣)⌉ of their members are found by the grouping method and correctly detected by the tracker, and if no more than (1−T) ⋅ ∣G∣ false subjects (of the detected tracks) are identified, where ∣G∣ is the cardinality of the labelled group G, and T Є [0,1] is an arbitrary threshold, called tolerance threshold.

Reference

  1. 1. Setti F, Russell C, Bassetti C, Cristani M (2015) F-Formation Detection: Individuating Free-Standing Conversational Groups in Images. PLoS ONE 10(5): e0123783. pmid:25996922