Type

Conference Proceedings

Authors

Cathal Gurrin
Alan F. Smeaton
Peng Wang

Subjects

Computer Science

Topics
visual sensing lifelog concept detection sensing multimedia systems one class image processing automatic detection

Factorizing time-aware multi-way tensors for enhancing semantic wearable sensing (2015)

Abstract Automatic concept detection is a crucial aspect of automatically indexing unstructured multimedia archives. However, the current prevalence of one-per-class detectors neglect inherent concept relation- ships and operate in isolation. This is insufficient when analyzing content gathered from wearable visual sensing, in which concepts occur with high diversity and with correlation depending on context. This paper presents a method to enhance concept detection results by constructing and factorizing a multi-way concept detection tensor in a time-aware manner. We derived a weighted non-negative tensor factorization algorithm and applied it to model concepts’ temporal occurrence patterns and show how it boosts overall detection performance. The potential of our method is demonstrated on lifelog datasets with varying levels of original concept detection accuracies.
Collections Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Multimedia systems
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: INSIGHT Centre for Data Analytics
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres
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 -> Subject = Computer Science: Image processing
Ireland -> Dublin City University -> Subject = Computer Science
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools
Ireland -> Dublin City University -> Subject = Computer Science: Lifelog
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing

Full list of authors on original publication

Cathal Gurrin, Alan F. Smeaton, Peng Wang

Experts in our system

1
Cathal Gurrin
Dublin City University
Total Publications: 206
 
2
Alan F. Smeaton
Dublin City University
Total Publications: 475
 
3
Peng Wang
Dublin City University
Total Publications: 16