Type

Conference Proceedings

Authors

Alan F. Smeaton
Feiyan Hu

Subjects

Computer Science

Topics
computer simulation big data lifelog behaviour signal processing athletic performance bioinformatics periodicity

Periodicity intensity for indicating behaviour shifts from lifelog data (2016)

Abstract Periodic phenomena or oscillating signals can be found frequently in nature and recent research has observed pe- riodicity appearing in lifelog data, the automatic digital recording of everyday activities. In this paper we are exploring periodicity and intensity of periodicity in big data settings, especially when the data is noisy, unevenly sampled and incomplete. An interesting possibility is to compute the intensity or strength of detected periodicity across the time span of a lifelog to see if it reveals changes in this strength at different times, indicating shifts in underlying behaviour. In this paper we propose several metrics to estimate the intensity of periodicity, longitudinally. Evaluation of these metrics is conducted on simulated high-level activity data generated from a proposed model. We also explore periodicity intensity calculated from two real lifelog datasets using. One is “big” data consists of low-level accelerometer data and another one is high level athletic performance data.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> Subject = Computer Science: Computer simulation
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Engineering and Computing: School of Computing
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Lifelog
Ireland -> Dublin City University -> Subject = Engineering: Signal processing
Ireland -> Dublin City University -> Subject = Biological Sciences: Bioinformatics
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: INSIGHT Centre for Data Analytics

Full list of authors on original publication

Alan F. Smeaton, Feiyan Hu

Experts in our system

1
Alan F. Smeaton
Dublin City University
Total Publications: 492
 
2
Feiyan Hu
Dublin City University
Total Publications: 16