@misc{zhai2019complete,
    title={Complete Dictionary Learning via $\ell^4$-Norm Maximization over the Orthogonal Group},
    author={Yuexiang Zhai and Zitong Yang and Zhenyu Liao and John Wright and Yi Ma},
    year={2019},
    eprint={1906.02435},
    archivePrefix={arXiv},
    primaryClass={cs.LG}
}