ActiveSleepLearner: Less Annotation Budget for Better Large-Scale Sleep Staging. - Qi Liu; Jie Wei; Thomas Penzel; Maarten De Vos; Yuan Zhang 007; Zhiyi Huang 001; Mikhail Poluektov; Yulan Zhu; Chenyu Li (IEEE Trans. Emerg. Top. Comput. Intell., 2025)