Changes of Permutation Pattern Entropy and Ordinal Pattern Entropy During Three Emotion States: Natural, Happiness and Sadness. - Yirong Xia; Licai Yang; Hongyu Shi; Yuan Zhuang; Chengyu Liu 001 (CinC, 2017)

Application of Permutation Entropy and Permutation Min-Entropy in Multiple Emotional States Analysis of RRI Time Series. - Yirong Xia; Licai Yang; Luciano Zunino; Hongyu Shi; Yuan Zhuang; Chengyu Liu 001 (Entropy, 2018)