Heart rate analysis by sparse representation for acute pain detection. - Shai Tejman-Yarden; Ofer Levi; Alex Beizerov; Yisrael Parmet; Tu Viet Nguyen; Michael A. Saunders; Zvia Rudich; James C. Perry; Dewleen G. Baker; Tobias Möller-Bertram (Medical Biol. Eng. Comput., 2016)