Algorithm 1 Latent Dirichlet Allocation Generative Process
1.	For each document w in a corpus D:
1.1	Choose $N ~ Poisson\left(\xi \right)$
1.2	Choose $\theta ~ Dirichlet\left(\alpha \right)$
1.3	For each of the N words wn:
1.3.1	Choose a topic $z_n ~ Multinomial\left(\theta \right)$
1.3.2	Choose a word wn from $p\left(w_n\right|z_n, \beta )$, a multinomial probability related to the topic zn