Type

Conference Proceedings

Authors

Noel E. O'Connor
Alan F. Smeaton
Zhilan Hu
Jian Tang
Milan Redzic
Haolin Wei
Joseph Antony
Kevin McGuinness
Mark Marsden

Subjects

Computer Science

Topics
computational complexity class co occurrence classification difficulty factors semantic abstraction visual variation multi label

Investigating class-level difficulty factors in multi-label classification problems (2020)

Abstract This work investigates the use of class-level difficulty factors in multi-label classification problems for the first time. Four class-level difficulty factors are proposed: frequency, visual variation, semantic abstraction, and class co-occurrence. Once computed for a given multi-label classification dataset, these difficulty factors are shown to have several potential applications including the prediction of class-level performance across datasets and the improvement of predictive performance through difficulty weighted optimisation. Significant improvements to mAP and AUC performance are observed for two challenging multi-label datasets (WWW Crowd and Visual Genome) with the inclusion of difficulty weighted optimisation. The proposed technique does not require any additional computational complexity during training or inference and can be extended over time with inclusion of other class-level difficulty factors.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Computing
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Electronic Engineering
Ireland -> Dublin City University -> Status = In Press
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: INSIGHT Centre for Data Analytics

Full list of authors on original publication

Noel E. O'Connor, Alan F. Smeaton, Zhilan Hu, Jian Tang, Milan Redzic, Haolin Wei, Joseph Antony, Kevin McGuinness, Mark Marsden

Experts in our system

1
Noel E. O'Connor
Dublin City University
Total Publications: 474
 
2
Alan F. Smeaton
Dublin City University
Total Publications: 492
 
3
Haolin Wei
Dublin City University
Total Publications: 12
 
4
Joseph Antony
Dublin City University
Total Publications: 10
 
5
Kevin McGuinness
Dublin City University
Total Publications: 93
 
6
Mark Marsden
Dublin City University
Total Publications: 10