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Article

Indoor Localization for Personalized Ambient Assisted Living of Multiple Users in Multi-Floor Smart Environments

Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH 45221-0030, USA
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Academic Editors: Elisa Quintarelli and Sara Migliorini
Big Data Cogn. Comput. 2021, 5(3), 42; https://doi.org/10.3390/bdcc5030042
Received: 9 August 2021 / Revised: 3 September 2021 / Accepted: 3 September 2021 / Published: 8 September 2021
(This article belongs to the Special Issue Advanced Data Mining Techniques for IoT and Big Data)
This paper presents a multifunctional interdisciplinary framework that makes four scientific contributions towards the development of personalized ambient assisted living (AAL), with a specific focus to address the different and dynamic needs of the diverse aging population in the future of smart living environments. First, it presents a probabilistic reasoning-based mathematical approach to model all possible forms of user interactions for any activity arising from user diversity of multiple users in such environments. Second, it presents a system that uses this approach with a machine learning method to model individual user-profiles and user-specific user interactions for detecting the dynamic indoor location of each specific user. Third, to address the need to develop highly accurate indoor localization systems for increased trust, reliance, and seamless user acceptance, the framework introduces a novel methodology where two boosting approaches—Gradient Boosting and the AdaBoost algorithm are integrated and used on a decision tree-based learning model to perform indoor localization. Fourth, the framework introduces two novel functionalities to provide semantic context to indoor localization in terms of detecting each user’s floor-specific location as well as tracking whether a specific user was located inside or outside a given spatial region in a multi-floor-based indoor setting. These novel functionalities of the proposed framework were tested on a dataset of localization-related Big Data collected from 18 different users who navigated in 3 buildings consisting of 5 floors and 254 indoor spatial regions, with an to address the limitation in prior works in this field centered around the lack of training data from diverse users. The results show that this approach of indoor localization for personalized AAL that models each specific user always achieves higher accuracy as compared to the traditional approach of modeling an average user. The results further demonstrate that the proposed framework outperforms all prior works in this field in terms of functionalities, performance characteristics, and operational features. View Full-Text
Keywords: indoor localization; big data; machine learning; artificial intelligence; smart homes; ambient assisted living; user personalization; human–computer interaction; elderly; aging population indoor localization; big data; machine learning; artificial intelligence; smart homes; ambient assisted living; user personalization; human–computer interaction; elderly; aging population
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MDPI and ACS Style

Thakur, N.; Han, C.Y. Indoor Localization for Personalized Ambient Assisted Living of Multiple Users in Multi-Floor Smart Environments. Big Data Cogn. Comput. 2021, 5, 42. https://doi.org/10.3390/bdcc5030042

AMA Style

Thakur N, Han CY. Indoor Localization for Personalized Ambient Assisted Living of Multiple Users in Multi-Floor Smart Environments. Big Data and Cognitive Computing. 2021; 5(3):42. https://doi.org/10.3390/bdcc5030042

Chicago/Turabian Style

Thakur, Nirmalya, and Chia Y. Han. 2021. "Indoor Localization for Personalized Ambient Assisted Living of Multiple Users in Multi-Floor Smart Environments" Big Data and Cognitive Computing 5, no. 3: 42. https://doi.org/10.3390/bdcc5030042

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