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The University of Michigan maintains what we call “High Level Browse” — a mapping of LC/Dewey call numbers to a limited hierarchy, based loosely around academic departments (at least at the time it started). It’s still maintained, and may prove generally useful as well. The HLB hierarchy <http://www.lib.umich.edu/browse> gives you an idea of what it is, and you can download and XML dump of the categories and their associated call number ranges <http://www.lib.umich.edu/browse/categories/xml.php> (1.8mb) if that’s your thing. On Wed, Apr 13, 2016 at 10:38 AM, William Denton <[log in to unmask]> wrote: > On 13 April 2016, Mark Watkins wrote: > > I'm a library sciences newbie, but it seems like LCSH doesn't really >> provide a formal hierarchy of genre/topic, just a giant controlled >> vocabulary. Bisac seems to provide the "expected" hierarchy. >> >> Is anyone aware of any approaches (or better yet code!) that translates >> lcsh to something like BISAC categories (either BISAC specifically or some >> other hierarchy/ontology)? General web searching didn't find anything >> obvious. >> > > There's HILCC, the Hierarchical Interface of LC Classification: > > https://www1.columbia.edu/sec/cu/libraries/bts/hilcc/subject_map.html > > Bill > -- > William Denton ↔ Toronto, Canada ↔ https://www.miskatonic.org/ -- Bill Dueber Library Systems Programmer University of Michigan Library