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| Content Provider | ACM Digital Library |
|---|---|
| Author | Sharmin, Moushumi Rahman, Md. Mahbubur Hossain, Syed Monowar Kumar, Santosh Ali, Amin Ahsan Sarker, Hillol Bari, Rummana |
| Abstract | Wearable wireless sensors for health monitoring are enabling the design and delivery of just-in-time interventions (JITI). Critical to the success of JITI is to time its delivery so that the user is available to be engaged. We take a first step in modeling users' availability by analyzing 2,064 hours of physiological sensor data and 2,717 self-reports collected from 30 participants in a week-long field study. We use delay in responding to a prompt to objectively measure availability. We compute 99 features and identify 30 as most discriminating to train a machine learning model for predicting availability. We find that location, affect, activity type, stress, time, and day of the week, play significant roles in predicting availability. We find that users are least available at work and during driving, and most available when walking outside. Our model finally achieves an accuracy of 74.7% in 10-fold cross-validation and 77.9% with leave-one-subject-out. |
| Starting Page | 909 |
| Ending Page | 920 |
| Page Count | 12 |
| File Format | PDF QT / MOV |
| ISBN | 9781450329682 |
| DOI | 10.1145/2632048.2636082 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2014-09-13 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Intervention Interruption Mobile health Ema Mobile application Self-report |
| Content Type | Video Text |
| Resource Type | Article |
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