Leader identification is a crucial task in social analysis, crowd management and emergency planning. In this paper, we investigate a computational model for the individuation of leaders in crowded scenes. We deal with the lack of a formal definition of leadership by learning, in a supervised fashion, a metric space based exclusively on people spatiotemporal information. Based on Tarde's work on crowd psychology, individuals are modeled as nodes of a directed graph and leaders inherits their relevance thanks to other members references. We note this is analogous to the way websites are ranked by the PageRank algorithm. During experiments, we observed different feature weights depending on the specific type of crowd, highlighting the impossibility to provide a unique interpretation of leadership. To our knowledge, this is the first attempt to study leader identification as a metric learning problem

Learning to identify leaders in crowd / Solera, Francesco; Calderara, Simone; Cucchiara, Rita. - ELETTRONICO. - (2015), pp. 43-48. (Intervento presentato al convegno 2015 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) tenutosi a Boston USA nel 7-12 June 2015) [10.1109/CVPRW.2015.7301282].

Learning to identify leaders in crowd

SOLERA, FRANCESCO;CALDERARA, Simone;CUCCHIARA, Rita
2015

Abstract

Leader identification is a crucial task in social analysis, crowd management and emergency planning. In this paper, we investigate a computational model for the individuation of leaders in crowded scenes. We deal with the lack of a formal definition of leadership by learning, in a supervised fashion, a metric space based exclusively on people spatiotemporal information. Based on Tarde's work on crowd psychology, individuals are modeled as nodes of a directed graph and leaders inherits their relevance thanks to other members references. We note this is analogous to the way websites are ranked by the PageRank algorithm. During experiments, we observed different feature weights depending on the specific type of crowd, highlighting the impossibility to provide a unique interpretation of leadership. To our knowledge, this is the first attempt to study leader identification as a metric learning problem
2015
2015 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)
Boston USA
7-12 June 2015
43
48
Solera, Francesco; Calderara, Simone; Cucchiara, Rita
Learning to identify leaders in crowd / Solera, Francesco; Calderara, Simone; Cucchiara, Rita. - ELETTRONICO. - (2015), pp. 43-48. (Intervento presentato al convegno 2015 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) tenutosi a Boston USA nel 7-12 June 2015) [10.1109/CVPRW.2015.7301282].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1074306
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