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SlideAugment: A Simple Data Processing Method to Enhance Human Activity Recognition Accuracy Based on WiFi
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DOI：10.3390/s21062181.png)
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摘要
En 中文
Currently, there are various works presented in the literature regarding the activity recognition based on WiFi. We observe that existing public data sets do not have enough data. In this work, we present a data augmentation method called window slicing. By slicing the original data, we get multiple samples for one raw datum. As a result, the size of the data set can be increased. On the basis of the experiments performed on a public data set and our collected data set, we observe that the proposed method assists in improving the results. It is notable that, on the public data set, the activity recognition accuracy improves from 88.13% to 97.12%. Similarly, the recognition accuracy is also improved for the data set collected in this work. Although the proposed method is simple, it effectively enhances the recognition accuracy. It is a general channel state information (CSI) data augmentation method. In addition, the proposed method demonstrates good interpretability.
Keyword:
Wi-Fi
channel state information
data augmentation
slide window
human activity recognition
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期刊
IF:
3.5
论文数:
7.2W
被引数:
20.9W
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