Erratum: A Non-Negative Matrix Factorization Based Framework for the Analysis of Multi-Class Time-Series Single-Cell RNA-Seq Data (IEEE Access (2020) 8 (42342-42348) DOI: 10.1109/ACCESS.2020.2977106)

In the above article [1], the acknowledgment of the research grant that supported this research was missing. The research grants that supported this research should be acknowledged as in the Acknowledgment section below within this correction document. The authors requested this correction for complementing the missing Acknowledgment in the above article [1]. ACKNOWLEDGMENT This work was supported in part by the Kyungpook National University Research Fund, 2019, and in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education under Grant NRF-2019R1I1A3A01063829.