Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/110041
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Type: | Conference paper |
Title: | Freedom: online activity recognition via dictionary-based sparse representation of RFID sensing data |
Author: | Yao, L. Sheng, Q. Li, X. Wang, S. Gu, T. Ruan, W. Zou, W. |
Citation: | Proceedings / IEEE International Conference on Data Mining. IEEE International Conference on Data Mining, 2016 / Aggarwal, C., Zhou, Z., Tuzhilin, A., Xiong, H., Wu, X. (ed./s), vol.2016-January, pp.1087-1092 |
Publisher: | IEEE |
Issue Date: | 2016 |
Series/Report no.: | IEEE International Conference on Data Mining |
ISBN: | 9781467395038 |
ISSN: | 1550-4786 |
Conference Name: | IEEE International Conference on Data Mining (ICDM) (14 Nov 2015 - 17 Nov 2015 : Atlantic City, NJ) |
Editor: | Aggarwal, C. Zhou, Z. Tuzhilin, A. Xiong, H. Wu, X. |
Statement of Responsibility: | Lina Yao, Quan Z. Sheng, Xue Li, Sen Wang, Tao Gu, Wenjie Ruan, and Wan Zou |
Abstract: | Understanding and recognizing the activities performed by people is a fundamental research topic for a wide range of important applications such as fall detection of elderly people. In this paper, we present the technical details behind Freedom, a low-cost, unobtrusive system that supports independent living of the older people. The Freedom system interprets what a person is doing by leveraging machine learning algorithms and radio-frequency identification (RFID) technology. To deal with noisy, streaming, unstable RFID signals, we particularly develop a dictionary-based approach that can learn dictionaries for activities using an unsupervised sparse coding algorithm. Our approach achieves efficient and robust activity recognition via a more compact representation of the activities. Extensive experiments conducted in a real-life residential environment demonstrate that our proposed system offers a good overall performance (e.g., achieving over 96% accuracy in recognizing 23 activities) and has the potential to be further developed to support the independent living of elderly people. |
Keywords: | Activity recognition; RFID; sparse coding; dictionary; feature selection; sensing data |
Rights: | © 2015 IEEE |
DOI: | 10.1109/ICDM.2015.102 |
Published version: | http://dx.doi.org/10.1109/icdm.2015.102 |
Appears in Collections: | Aurora harvest 8 Computer Science publications |
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RA_hdl_110041.pdf | Restricted Access | 1.29 MB | Adobe PDF | View/Open |
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