2018 10-708 (CMU) Probabilistic Graphical Models {Lecture 25} [Spectral Methods]

draw a topic h and then draw independent xfrom multinomial distribution

 

 

 

 

 

 

 

 

 

 

 

 A paper can have several topics, and each topics has different proportions

 

 

 

 

O is the matrix of topic word, given by the model

h is the topic