Pouch Latent Tree Models(PLTM) An extension of basic ltm (Poon et al. ICML 2010) Rooted tree Internal nodes represent discrete latent variables Each leaf node consists of one or more continuous observed variable called a pouch P(x1,x2y2)=N(x1,x2|2,∑y2) (-25,-25):y=51 (0,0 y2 (25,25) Y23) (Y3(3) Y4(3 10.5 y2 0.51 ∈{5}(2)(0)()(如)( AAAl2014 Tutorial Nevin L Zhang HKUST 5AAAI 2014 Tutorial Nevin L. Zhang HKUST 5 Pouch Latent Tree Models (PLTM)  An extension of basic LTM  Rooted tree  Internal nodes represent discrete latent variables  Each leaf node consists of one or more continuous observed variable, called a pouch. (Poon et al. ICML 2010)