Machine Learning Model for Group Activity Recognition Based on Discriminative Interaction Contextual Relationship

Table 2

Performance of GAC descriptors compared with baseline approach.

Method/activities	Accuracy (%)	Precision (%)	Recall (%)	F1 score (%)
Interaction joint context descriptor	68.3	80.76	80.89	71.67
Proposed GAC descriptor	85.2	88.22	88.22	80.82