[OPEN-ILS-DEV] Clustering editions in Laurentian's Evergreen catalog?

[Mike Rylander]

On Tue, Aug 25, 2009 at 5:22 PM, Karen Schneider<kgs at esilibrary.com> wrote:
>
>
> On Tue, Aug 25, 2009 at 5:10 PM, Frances Dean McNamara
> <fdmcnama at uchicago.edu> wrote:
>>
>> I notice searching Laurentian's catalog that they are clustering editions.
>>  Check Jane Austen or Mark Twain.  Interesting.
>>
>> Is that a custom feature or part of 1.6 Evergreen?  And what is it using
>> to cluster?  An algorithm?  A number?
>>
>> Frances McNamara
>> University of Chicago
>
> Frances, are you talking about Group Formats and Editions? That's been in
> Evergreen since... a long time, maybe the first version. You can have it be
> the default for Evergreen or you can switch it on in advanced search (not
> that users would understand what that did!). To see it in work on
> dev.gapines.org, go to Advanced Search, select Group Format and Editions,
> and use Azkaban as a keyword. Note how the different formats show up as
> icons.
>
> I believe it's an algorithm.
>

Indeed these metarecord results are grouped using an algorithm.  At
record ingest time we take a fingerprint of each record, and group
records with like fingerprints.  You can make the metarecord result
display the default by editing
/openils/var/web/opac/common/js/config.js and setting SHOW_MR_DEFAULT
to true (it ships as false by default).  The algorithm is defined by
biblio_fingerprint.js which lives, by default, in
/openils/var/catalog/.

-- 
Mike Rylander
 | VP, Research and Design
 | Equinox Software, Inc. / The Evergreen Experts
 | phone:  1-877-OPEN-ILS (673-6457)
 | email:  miker at esilibrary.com
 | web:  http://www.esilibrary.com