Hi Peter,
this worked very well for us and keeps librarians happy.
Best regards
Jessica
________________________________________________
Jessica Lindholm
Malmö University
Library and IT Service
Orkanen Library
205 06 Malmö
Sweden
[email protected]<mailto:[email protected]>
+46 (0)40 665 71 39
http://www.mah.se/bit
http://homeweb.mah.se/~bijeli/
http://www.linkedin.com/in/jessical
From: Peter Dietz [mailto:[email protected]]
Sent: den 9 februari 2012 00:03
To: Jessica Lindholm
Cc: [email protected]
Subject: Re: [Dspace-tech] Problematic search results with minus signs :
boolean search operator and main-/undertitle separator
Hi Jessica,
I've been meaning to look into this and respond, but never found the time.
Since we're thinking about having a 1.8.2 bug-fix version, this would be a nice
bug to squash. And since I just tested it.. it is surely a bug.
I've just created an issue in JIRA.
https://jira.duraspace.org/browse/DS-1121
Basically, its not too hard of a fix. I couldn't find any way to easily
customize your searches, but you can directly edit the code to fix this.
+ static String stripInterspersedDash(String myQuery)
+ {
+ // Remove an interspersed dash
+ if(myQuery.contains(" - ")) {
+ log.info<http://log.info>("Removing a dash");
+ }
+ return myQuery.replaceAll(" - ", " ");
+ }
So this is a decent fix. I don't know if your support team will be able to give
this a try. But let me know what you think.
Peter Dietz
On Wed, Feb 8, 2012 at 9:56 AM, Jessica Lindholm
<[email protected]<mailto:[email protected]>> wrote:
Anyone with 50 cents to the topic below, please?
Kind regards
Jessica
From: Jessica Lindholm
[mailto:[email protected]<mailto:[email protected]>]
Sent: den 25 januari 2012 13:50
To: [email protected]<mailto:[email protected]>
Subject: [Dspace-tech] Problematic search results with minus signs : boolean
search operator and main-/undertitle separator
Dear all,
I would like some advice on Boolean operators and their implications on search
/ search results.
Some publications have a minus sign in titles, e.g. in Chronic intraoral pain -
assessment of diagnostic methods and prognosis http://hdl.handle.net/2043/12563.
This gives us a problem when searching for the item. It coincides with ‘-‘
minus being the operator for AND NOT, so we all of a sudden look for stuff
without specific words. A simple free-text search matching the title above
leads to zero hits. And users tend to e.g. copy a title from a reference list
to the search box.
Has anyone encountered the same problem? We have looked around and haven’t
found a solution (stopwords, tokens, queries).
We are using AND as standard operator for all searches, i.e. we have that
changed in config.xml (from default OR). If we had used OR as default the
problem wouldn’t appear, and possibly this opens up for a logical slip in the
system (or by me, which is not unlikely at all). Google uses the same operator,
but handling it differently when surrounded by whitespaces.
Is this a possible bug encountered?
We would preferably like to change the Boolean operators to usage of
capitalised AND NOT, AND etc instead of -,+. Believing this would solve the
issue. Is this possible (Java okay)?
However when matching exact, using quotation marks both the searches: “Chronic
intraoral pain assessment of diagnostic methods and prognosis” (minus excluded)
and “Chronic intraoral pain - assessment of diagnostic methods and prognosis”
works fine. So the minus is treated to some extent.
Looking forward to understand better,
Jessica Lindholm
Ps Malmo university is using DSpace (1.8.*) XMLUI as our institutional
repository.
________________________________________________
Jessica Lindholm
Malmö University
Library and IT Service
Orkanen Library
205 06 Malmö
Sweden
[email protected]<mailto:[email protected]>
+46 (0)40 665 71 39<tel:%2B46%20%280%2940%20665%2071%2039>
http://www.mah.se/bit
http://homeweb.mah.se/~bijeli/
http://www.linkedin.com/in/jessical
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