(I'm a bit outside my comfort zone, so apologies if this is badly worded, or off-topic)
I have a bibliographic database, containign details of about 1200 different papers, books, web sites etc, all with various details, including keywords and an abstract. I want to somehow analyse this database and produce some graphics showing the correlations between different keywords. (like "drug" is often present with either "pharmacology" or "assay").
My database could be in bibtex, or could be converted to plain text.