Localized semi-nonnegative matrix factorization (LocaNMF) of widefield calcium imaging data. - Shreya Saxena; Ian Kinsella; Simon Musall; Sharon H. Kim; Jozsef Meszaros; David N. Thibodeaux; Carla Kim; John J. Cunningham; Elizabeth M. C. Hillman; Anne Churchland; Liam Paninski (PLoS Comput. Biol., 2020)