Hi, all, Has anyone here done text analysis-type work on MARC data, particularly on topical subject headings? I work closely with my library's digital collections, and I am interested in seeing what kinds of topics (as indicated in our descriptive data) are represented in our digital collections. So, I have the corresponding MARCXML for the materials and have extracted the 650s as a string (e.g., *650 $a World War, 1914-1918 $x Territorial questions $v Maps*), but I'm a little stuck on how to meaningfully analyze the data. I tried feeding the data into Voyant, but I think it's too large of a corpus to run properly there, and regardless, the MARC data is (of course) delimited in a specific way. Any / all perspectives or experience would be welcome -- please do get in touch directly (at [log in to unmask]), if you'd like. With thanks, Alison Clemens Beinecke Rare Book and Manuscript Library, Yale University