[Koha-devel] Linking bibs to authorities

[Fridolyn SOMERS]

Hie,

phrases-icu.xml ? this does not exist in current master.
Could you give it ?

Regards,

Le 17/10/2013 19:06, Ian Bays a écrit :
> Hi Fridolyn,
> Thank you for this.  I was beginning to wonder if nobody was interested
> in the question.
>
> The bug you mention is a useful addition, but we achieved considerable
> success by correcting the contents of the default.idx
> (~/koha-dev/etc/zebradb/etc/default.idx) to use phrases-icu.xml for
> index p, and to ensure phrases-icu.xml and words-icu.xml have the
> correct stanzas for searching accent-blind.
>
> With these both in place I believe we have a very good hit rate for
> linking bib to authorities as long as the authority terms have been
> de-duplicated.
>
> I think Colin has submitted patches so that these are in place for all
> moving forwards, but it is good to know that others are using these
> features.
>
> What we were seeing before was if the term in the bib was (say) "History
> of Art" it would only match on the first word so would match an
> authority of (say) "History Books".
>
> All the best.
>
> Ian
> On 17/10/2013 16:53, Fridolyn SOMERS wrote:
>> Hie,
>>
>> It is because in Zebra, exact search does not work.
>> It can find a phrase (all words in same order) but not say if this
>> phrase fits the entire (sub)field. This is the purpose of PQF attribut
>> 6, but is does not work.
>> So when linking bibs to authorities, linker will match more
>> authorities than needed. For example, in biblio record "History" will
>> match authorities with headings "History", "History of art", "History
>> of science", ...
>>
>> That is wy I created Bug 9072 :
>> http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=9072
>>
>> Le 02/08/2013 17:32, Ian Bays a écrit :
>>> Hi.
>>> I mentioned we also have a problem with linking bibs to authorities.
>>>
>>> We use authorities and want to link them to bibs.  Over previous
>>> versions of Koha this has sometimes worked quite well.  However on a few
>>> systems we have at version 3.12 it seems that the Zebra search into the
>>> authorities (used by link_bib_to_authorities) is returning all terms
>>> that contain any of the words in the bib field.
>>>
>>> So if the linkage is set to "default" then most authority searches will
>>> return multiple answers which means they do not link.
>>> If the linkage syspref is set to first or last then most of the bibs
>>> will link to the wrong authority as it is pot luck which will be first
>>> (or last) of the many authorities found by searching all the words ORed
>>> together.
>>> The only terms that will link are single-word authorities that are not
>>> used in any other authorities.
>>>
>>> If anyone has any pointers or knows how to get round or over this
>>> problem I would love to hear from you.  More details on request...
>>>
>>> We are using Zebra dom indexing and icu chains and are using Koha 3.12
>>> on Debian.  We are not yet using QueryParser.  Sysprefs and Help > About
>>> are here:
>>>
>>> Sysprefs are:
>>>
>>> +--------------------------+-------+
>>> | variable                 | value |
>>> +--------------------------+-------+
>>> | IncludeSeeFromInSearches | 0     |
>>> | QueryAutoTruncate        | 0     |
>>> | QueryFuzzy               | 0     |
>>> | QueryStemming            | 0     |
>>> | QueryWeightFields        | 1     |
>>> | TraceCompleteSubfields   | 0     |
>>> | TraceSubjectSubdivisions | 0     |
>>> | UseICU                   | 1     |
>>> | UseQueryParser           | 0     |
>>> +--------------------------+-------+
>>>
>>>
>>> Koha> About:
>>>
>>> Koha version:     3.12.01.000
>>> OS version ('uname -a'):     Linux dclg.koha.ptfsadmin.uk0.bigv.io
>>> 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux
>>> Perl interpreter:     /usr/bin/perl
>>> Perl version:     5.014002
>>> Perl @INC:     /home/koha/kohaclone
>>> /etc/perl
>>> /usr/local/lib/perl/5.14.2
>>> /usr/local/share/perl/5.14.2
>>> /usr/lib/perl5
>>> /usr/share/perl5
>>> /usr/lib/perl/5.14
>>> /usr/share/perl/5.14
>>> /usr/local/lib/site_perl
>>> .
>>> MySQL version:     mysql Ver 14.14 Distrib 5.5.31, for debian-linux-gnu
>>> (x86_64) using readline 6.2
>>> Apache version:     Server version: Apache/2.2.22 (Debian)
>>> Zebra version:     Zebra 2.0.55 (C) 1994-2013, Index Data ApS Zebra is
>>> free software, covered by the GNU General Public License, and you are
>>> welcome to change it and/or distribute copies of it under certain
>>> conditions. SHA1 ID: bd2bc9360225e695bbaba2c2d1cd6925c4eb23a5 Using ICU
>>>
>>> Many thanks folks.
>>> Ian
>>>
>>>
>>
>
>

-- 
Fridolyn SOMERS
Biblibre - Pôle support
fridolyn.somers at biblibre.com