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Adaptive weighted recurrence graphs for appliance recognition in non-intrusive load monitoring

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dc.creator Faustine, Anthony
dc.creator Pereira, Lucas
dc.creator Klemenjak, Christoph
dc.date 2021-05-04T12:55:19Z
dc.date 2021-05-04T12:55:19Z
dc.date 2021
dc.date.accessioned 2022-10-20T13:47:43Z
dc.date.available 2022-10-20T13:47:43Z
dc.identifier Faustine, A., Pereira, L., & Klemenjak, C. (2021). Adaptive weighted recurrence graphs for appliance recognition in non-intrusive load monitoring. IEEE Transactions on Smart Grid, 12(1), 398-406.
dc.identifier DOI: https://doi.org/10.1109/TSG.2020.3010621
dc.identifier http://hdl.handle.net/20.500.12661/2925
dc.identifier.uri http://hdl.handle.net/20.500.12661/2925
dc.description Abstract. Full Text Article Available at: https://doi.org/10.1109/TSG.2020.3010621
dc.description To this day, hyperparameter tuning remains a cumbersome task in Non-Intrusive Load Monitoring (NILM) research, as researchers and practitioners are forced to invest a considerable amount of time in this task. This paper proposes adaptive weighted recurrence graph blocks (AWRG) for appliance feature representation in event-based NILM. An AWRG block can be combined with traditional deep neural network architectures such as Convolutional Neural Networks for appliance recognition. Our approach transforms one cycle per activation current into an weighted recurrence graph and treats the associated hyper-parameters as learn-able parameters. We evaluate our technique on two energy datasets, the industrial dataset LILACD and the residential PLAID dataset. The outcome of our experiments shows that transforming current waveforms into weighted recurrence graphs provides a better feature representation and thus, improved classification results. It is concluded that our approach can guarantee uniqueness of appliance features, leading to enhanced generalisation abilities when compared to the widely researched V-I image features. Furthermore, we show that the initialisation parameters of the AWRG's have a significant impact on the performance and training convergence.
dc.language en
dc.publisher IEEE
dc.subject Non-Intrusive Load Monitoring
dc.subject NILM
dc.subject Neural network
dc.subject Hyperparameter
dc.subject Load monitoring
dc.subject Training convergence
dc.title Adaptive weighted recurrence graphs for appliance recognition in non-intrusive load monitoring
dc.type Article


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