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Oh - looks like the item display didn't survive the transition to IIS 7 - I'll look into that. Cindy Harper, Systems Librarian Colgate University Libraries [log in to unmask] 315-228-7363 On Mon, Oct 31, 2011 at 11:49 AM, Cindy Harper <[log in to unmask]> wrote: > A couple years ago, I used a crossmap of LC call numbers to subject > headings (admittedly out of date) to provide subject-labeled sort by call > number on an experimental catalog search.http://lisv06.colgate.edu/profound/ > The mapping came from Mona Scott. Conversion Tables<http://encore.colgate.edu/iii/encore/search/C%7CSmona+subject+scott%7COrightresult%7CU1?lang=eng&suite=def> > .<http://encore.colgate.edu/iii/encore/search/C%7CSmona+subject+scott%7COrightresult%7CU1?lang=eng&suite=def> > 1999 > > I don't know how robust this is, but try searching a word that will appear > across subject areas, like "brown", to see the classification/subject > labels. > > I read the tables into a database, and in a batch process, coded each call > number division by how deep into the hierarchy it was linked - the number > of indents from 1 to 6. My ambition was to then try to find the most > frequently used subject headings in each step of the hierarchy (limited to > a workable range) to try to generate some semantic-net-like set of links > between subject headings and classification. But I never was able to > pursue that goal. > > > Cindy Harper, Systems Librarian > Colgate University Libraries > [log in to unmask] > 315-228-7363 > > > > > On Sun, Oct 30, 2011 at 5:58 PM, David Friggens <[log in to unmask]>wrote: > >> > Clicking on one of Ben Shneiderman's treemapping projects reminded me >> that >> > I've always thought treemaps [1] would serve well as a browsing >> interface >> > for library and archive collections because they work well with >> hierarchical >> > data. >> >> I played around with this earlier in the year, wanting to provide a >> drill-down into our collections by call number. >> >> For our Education Library's Teaching Collection, I used a three-level >> visualisation of items based on Dewey hierarchy, and coloured by the >> proportion of "new" (post 2006) items. I never put it online anywhere, >> so have attached it here. >> >> Dewey was pretty easy to get labels for the first three levels, and >> that seemed reasonable enough for most areas. But the majority of our >> items are LCC, and that's where I ran aground. The labels for the >> first two letters are readily available, but far too general to make >> this interesting. I couldn't seem to find any useful data in machine >> readable format. Sourcing another level down from LoC [1] or Wikipedia >> [2] seems tantalisingly close, but there's a whole lot of manual >> effort in turning these (incomplete) ranges into something usable. >> >> Cheers >> David >> >> [1] http://www.loc.gov/catdir/cpso/lcco/ >> [2] http://en.wikipedia.org/wiki/Library_of_Congress_Classification >> >> >> -- >> oʇɐʞıɐʍ ɟo ʎʇısɹǝʌıun >> uɐıɹɐɹqıן sɯǝʇsʎs >> > >