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ISM: intra-class similarity mixing for time series augmentation

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Conclusions

We propose a method based on intra-class similarity mixing, effectively alleviating the inability to improve the generalization of classification models. Its core concept involves improving the feature diversity and expanding the data scale by mixing local regions with similar features. The experimental results show that the proposed method can significantly outperform the similarity-based state-of-the-art methods. In future work, we will explore how to build and quantify the relationship between local similarity and lassification characteristics to further improve performance.

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Acknowledgment

This work was supported by the Fundamental Research Funds for the Central Universities (No. 2-9-2022-062).

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Correspondence to Rui Wang.

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Competing interests The authors declare that they have no competing interests or financial conflicts to disclose.

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Liu, P., Wang, R., He, Y. et al. ISM: intra-class similarity mixing for time series augmentation. Front. Comput. Sci. 18, 186352 (2024). https://doi.org/10.1007/s11704-024-40110-9

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  • DOI: https://doi.org/10.1007/s11704-024-40110-9