Phithakkitnukoon, Santi and Dantu, Ram
(2010).
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| URL: | http://www.emeraldinsight.com/journals.htm?article... |
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| DOI (Digital Object Identifier) Link: | http://dx.doi.org/doi:10.1108/17427371011084266 |
| Google Scholar: | Look up in Google Scholar |
Abstract
Purpose – Mobile computing research has been focused on developing technologies for handheld devices such as mobile phones, notebook computers, and mobile IP. Today, emphasis is increasing on context-aware computing, which aims to build the intelligence into mobile devices to sense and respond to the user’s context. The purpose of this paper is to present a context-aware mobile computing model (ContextAlert) that senses the user’s context and intelligently configures the mobile phone alert mode accordingly.
Design/methodology/approach – The paper proposes a three-step approach in designing the model based on the embedded sensor data (accelerometer, GPS antenna, and microphone) of a G1 Adriod phone. As adaptivity is essential for context-aware computing, within this model a new learning mechanism is presented to maintain a constant adaptivity rate for new learning while keeping the catastrophic forgetting problem minimal.
Findings – The model has been evaluated in many aspects using data collected from human subjects. The experiment results show that the proposed model performs well and yields a promising result. Originality/value – This paper is distinguished from other previous papers by: first, using multiple sensors embeded in the mobile phone, which is more realistic for detecting the user’s context than having various sensors attached to different parts of user’s body; second, by being a novel model that uses sensed contextual information to provide a service that better synchronizes the user’s daily life with a context-aware alert mode. With this service, the user can avoid the problems such as forgetting to switch to vibrate mode while in a meeting or a movie theater, and taking the risk of picking up a phone call while driving, and third, being an adaptive learning algorithm that maintains a constant adaptivity rate for new learning while keeping the catastrophic forgetting problem minimal.
| Item Type: | Journal Article |
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| Copyright Holders: | 2010 Emerald Group Publishing Limited |
| ISSN: | 1742-7371 |
| Funders: | National Science Foundation (NSF) |
| Keywords: | mobile communication systems; adaptive system theory |
| Academic Unit/Department: | Mathematics, Computing and Technology |
| Item ID: | 35078 |
| Depositing User: | Santi Phithakkitnukoon |
| Date Deposited: | 31 Oct 2012 11:04 |
| Last Modified: | 31 Oct 2012 18:01 |
| URI: | http://oro.open.ac.uk/id/eprint/35078 |
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