 |
 |
> it looks like LCSH > is moving past this string-based hierarchy in favor of one expressed in > terms of linked data. -- Oh, I've never received that impression. Pre-coordination - which you referred to as "hierarchical sets of terms" - is alive and well. A number of studies were done in the second half of the 2000s that looked at the creation of LCSH headings. Pre-coordination received significant attention in these studies and was ultimately confirmed as a good thing. Who knows why the precoordinated heading that was once used for "Mexican War, 1846-1848" was replaced, but that probably happened in 1986 (or 1991) based on the creation and most-resent modification times on that record. In other words, at a time when the notion of Linked Data was non-existent. Yours, Kevin > -----Original Message----- > From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of > Ethan Gruber > Sent: Wednesday, June 05, 2013 9:41 AM > To: [log in to unmask] > Subject: Re: [CODE4LIB] LOC Subject Headings API > > Are you referring to hierarchical sets of terms, like "United States-- > History--War with Mexico, 1845-1848"? This is an "earlier established > term" of http://id.loc.gov/authorities/subjects/sh85140201 (now labeled > "Mexican War, 1846-1848"). Ed Summers or Kevin Ford are in a better > position to discuss the change of terminology, but it looks like LCSH > is moving past this string-based hierarchy in favor of one expressed in > terms of linked data. > > Ethan > > > On Wed, Jun 5, 2013 at 9:32 AM, Joshua Welker <[log in to unmask]> > wrote: > > > I've seen those, but I can't figure out where on the id.loc.gov site > > there is actually a URL that provides a list of authority terms. All > > the links on the site seem to link to other pages within the site. > > > > Josh Welker > > > > > > -----Original Message----- > > From: Code for Libraries [mailto:[log in to unmask]] On Behalf > > Of Dana Pearson > > Sent: Tuesday, June 04, 2013 6:42 PM > > To: [log in to unmask] > > Subject: Re: [CODE4LIB] LOC Subject Headings API > > > > Joshua, > > > > There are different formats at LOC: > > > > http://id.loc.gov/authorities/subjects.html > > > > dana > > > > > > On Tue, Jun 4, 2013 at 6:31 PM, Joshua Welker <[log in to unmask]> > wrote: > > > > > I am building an auto-suggest feature into our library's search box, > > > and I am wanting to include LOC subject headings in my suggestions > > > list. Does anyone know of any web service that allows for automated > > > harvesting of LOC Subject Headings? I am also looking for name > > authorities, for that matter. > > > Any format will be acceptable to me: RDF, XML, JSON, HTML, CSV... I > > > have spent a while Googling with no luck, but this seems like the > > > sort of general-purpose thing that a lot of people would be > interested in. > > > I feel like I must be missing something. Any help is appreciated. > > > > > > Josh Welker > > > Electronic/Media Services Librarian > > > College Liaison > > > University Libraries > > > Southwest Baptist University > > > 417.328.1624 > > > > > > > > > > > -- > > Dana Pearson > > dbpearsonmlis.com > >