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Daily Activity Feature Selection in Smart Homes Based on Pearson Correlation Coefficient

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Abstract

In the case of a smart home, the ability to recognize daily activities depends primarily on the strategy used for selecting the appropriate features related to these activities. To achieve the goal, this paper presents a daily activity feature selection strategy based on the Pearson Correlation Coefficient. Firstly, a daily activity feature is viewed as a vector in Pearson Correlation Coefficient formula. Secondly, the relation degree between daily activity features is obtained according to weighted Pearson Correlation Coefficient formula. At last, redundant features are removed by the relation degree between daily activity features. Two distinct datasets are adopted to mitigate the effects of the coupling of the dataset used and the sensor configuration. Three different machine learning techniques are employed to evaluate the performance of the proposed approach in activity recognition. The experiment results show that the proposed approach yields higher recognition rates and achieves average improvement F-measures of 1.56% and 2.7%, respectively.

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Acknowledgements

We thank all the reviewers for their useful comments for improving the manuscript. This work was supported by the National Natural Science Foundation of China (No. 61976124); the Fundamental Research Funds for the Central Universities (No. 3132018194); the Open Project Program of Artificial Intelligence Key Laboratory of Sichuan Province (No. 2018RYJ09); the CERNET Innovation Project (No. NGII20181203).

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Authors and Affiliations

  1. School of Information Science and Technology, Dalian Maritime University, Dalian, 116026, China

    Yaqing Liu, Yong Mu, Keyu Chen, Yiming Li & Jinghuan Guo

  2. Artificial Intelligence Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong, 643000, China

    Yaqing Liu

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  1. Yaqing Liu
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Correspondence to Jinghuan Guo.

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Liu, Y., Mu, Y., Chen, K. et al. Daily Activity Feature Selection in Smart Homes Based on Pearson Correlation Coefficient. Neural Process Lett 51, 1771–1787 (2020). https://doi.org/10.1007/s11063-019-10185-8

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