A Novel Search Ranking Method for MOOCs Using Unstructured Course Information

Algorithm 1

Generative process of LDA.

 For each course topic :

  (a) Draw a multinomial from a Dirichlet prior ;

 For each course description :

  a. Draw a multinomial from a Dirichlet prior ;

  b. For each world in course description :

   i. Draw a topic from multinomial ;

   ii. Draw a word from multinomial ;