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@INPROCEEDINGS{Aran_HBU2016_2016,
         author = {Aran, Oya and Sanchez-Cortes, Dairazalia and Do, Trinh-Minh-Tri and Gatica-Perez, Daniel},
       projects = {Idiap},
          title = {Anomaly detection in elderly daily behavior in ambient sensing environments},
      booktitle = {Proceedings of the 7th Int. Workshop on Human Behavior Understanding, ACM Multimedia, 2016},
           year = {2016},
       location = {Amsterdam, Netherlands},
       abstract = {Current ubiquitous computing applications for smart homes aim to enhance people’s daily living respecting age span. Among the target groups of people, elderly are a population eager for “choices for living arrangements”, which would allow them to continue living in their homes but at the same time provide the health care they need. Given the growing elderly population, there is a need for statistical models able to
capture the recurring patterns of daily activity life and reason based on this information. We present an analysis of real-life sensor data collected from 40 different households of elderly people, using motion, door and pressure sensors. Our objective is to automatically observe and model the daily behavior of the elderly and detect anomalies that could occur in the sensor data. For this purpose, we first introduce an abstraction layer to create a common ground for home sensor configurations. Next, we build a probabilistic spatio-temporal model to summarize daily behavior. Anomalies are then defined as significant changes from the learned behavioral model and detected using a cross-entropy measure. We have compared the detected anomalies with manually collected annotations and the results show that the presented approach is able to detect significant behavioral changes of the elderly.},
            pdf = {https://publications.idiap.ch/attachments/papers/2016/Aran_HBU2016_2016.pdf}
}