Consider using bipartite networks to infer topics

[lyashevska]

A bipartite network is a type of network or graph that consists of two sets of vertices, where vertices from one set are only connected to vertices from the other set, and vice versa. In our case, there will be 2 types of vertices: Video and Tag. An edge exists between a video and a tag if the tag appears in the video.

For more info refer:
Community detection in bipartite networks
Similarities between topic modelling and network clustering

[lyashevska]

@michaelrojekgiffin I am currently investigating this approach. You might want to check this out.