The embedding files of all authors(entities), and conferences(actions)
are stored in dblp_author.txt and dblp_venue.txt, the embedding is
organized as follows:

    First line has two numbers, corresponding to number of entry in the
    file and embedding dimensions.

    For each following line, the first number corresponds to the ID of
    embedded author/venue, and the rest of the line is its embedding
    vector.

The mapping of author/venue IDs and their names are stored in author_mapping.txt
and venue_mapping.txt