Title
Assessment of e-Social Activity in Psychiatric Patients.
Abstract
This work introduces a novel method to assess the social activity maintained by psychiatric patients using information and communication technologies. In particular, we model the daily usage patterns of phone calls and social and communication apps using point processes. We propose a novel nonhomogeneous Poisson process model with periodic (circadian) intensity function using a truncated Fourier series expansion, which is inferred using a trust-region algorithm. We also extend the model using a mixture of periodic intensity functions to cope with the different daily patterns of a person. The analysis of the usage of phone calls and social and communication apps of a cohort of 259 patients reveals common patterns shared among patients with relatively high homogeneity and differences among patient pathologies.
Year
DOI
Venue
2019
10.1109/JBHI.2019.2918687
IEEE journal of biomedical and health informatics
Keywords
Field
DocType
Fourier series,Informatics,Data models,Tools,Feature extraction,Circadian rhythm,Mixture models
Informatics,Data modeling,Computer science,Social activity,Point process,Phone,Psychiatry,Information and Communications Technology,Cohort,Mixture model
Journal
Volume
Issue
ISSN
23
6
2168-2208
Citations 
PageRank 
References 
1
0.40
0
Authors
7