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Activity recognition with end-user sensor installation in the home

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dc.contributor.advisor Kent Larson. en_US Rockinson, Randy Joseph en_US
dc.contributor.other Massachusetts Institute of Technology. Dept. of Architecture. Program in Media Arts and Sciences. en_US 2008-09-03T15:34:50Z 2008-09-03T15:34:50Z 2008 en_US 2008 en_US
dc.description Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2008. en_US
dc.description Includes bibliographical references (v. 2, leaves 248-253). en_US
dc.description.abstract In this work, a system for recognizing activities in the home setting that uses a set of small and simple state-change sensors, machine learning algorithms, and electronic experience sampling is introduced. The sensors are designed to be "tape on and forget" devices that can be quickly and ubiquitously installed in home environments. The proposed sensing system presents an alternative to sensors that are sometimes perceived as invasive, such as cameras and microphones. Since temporal information is an important component of activities, a new algorithm for recognizing activities that extends the naive Bayes classifier to incorporate low-order temporal relationships was created. Unlike prior work, the system was deployed in multiple residential environments with non-researcher occupants. Preliminary results show that it is possible to recognize activities of interest to medical professionals such as toileting, bathing, and grooming with detection accuracies ranging from 25% to 89% depending on the evaluation criteria used. Although these preliminary results were based on small datasets collected over a two-week period of time, techniques have been developed that could be applied in future studies and at special facilities to study human behavior such as the MIT Placelab. The system can be easily retrofitted in existing home environments with no major modifications or damage and can be used to enable IT and health researchers to study behavior in the home. Activity recognition is increasingly applied not only in home-based proactive and preventive healthcare applications, but also in learning environments, security systems, and a variety of human-computer interfaces. en_US
dc.description.statementofresponsibility by Randy Joseph Rockinson. en_US
dc.format.extent 2 v. (253 leaves) en_US
dc.language.iso eng en_US
dc.publisher Massachusetts Institute of Technology en_US
dc.rights M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. en_US
dc.rights.uri en_US
dc.subject Architecture. Program in Media Arts and Sciences. en_US
dc.title Activity recognition with end-user sensor installation in the home en_US
dc.type Thesis en_US S.M. en_US
dc.contributor.department Massachusetts Institute of Technology. Dept. of Architecture. Program in Media Arts and Sciences. en_US
dc.identifier.oclc 237207648 en_US

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