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- W4205662272 abstract "For several years now, smart building energy systems have been a research area of intensive activity. In light of the increasing need for sustainable buildings and energy systems, this trend motivates an increasing need for a solution to reduce carbon dioxide emissions and improve energy efficiency. This paper proposes a high-performing and transferable occupancy detection framework that combines sensor data from different data modalities, including time series environmental data (temperature, humidity, and illuminance), image data, and acoustic energy data using ensemble method. To draw out the best prediction performance in each modality, the proposed framework was developed, including various models that were designed to learn the occupancy patterns reflected in the physical data streams. To tackle the time series environmental data, we designed two variants of an occupancy detection spatiotemporal pattern network (Occ-STPN) that performs both feature level and decision level fusion, respectively. We also propose a new metric; the fading memory mean square error (FMMSE), that provides a fair evaluation and penalization of delayed occupancy predictions. Multiple open-sourced datasets, including the Electricity Consumption and Occupancy and the University of California, Irvine’s (UCI) building occupancy detection dataset, along with our own real data collected from six different houses, were used to validate the algorithms’ performance. The experimental results presented herein break down the performance for each sensing modality, and a detailed analysis of the performance is also discussed." @default.
- W4205662272 created "2022-01-26" @default.
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- W4205662272 date "2022-03-01" @default.
- W4205662272 modified "2023-10-12" @default.
- W4205662272 title "Multimodal sensor fusion framework for residential building occupancy detection" @default.
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- W4205662272 doi "https://doi.org/10.1016/j.enbuild.2021.111828" @default.
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