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This work was supported by the General Financial Grant from Jiangsu Natural Science Foundation for Youth in 2014 (BK20140075).
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Li, X., Hu, G., Zhou, Y. et al. Use of sparse correlations for assessing financial markets. Front. Comput. Sci. 14, 146319 (2020). https://doi.org/10.1007/s11704-019-9060-x
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DOI: https://doi.org/10.1007/s11704-019-9060-x