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("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 <jessica.lindh...@mah.se>wrote:
> Anyone with 50 cents to the topic below, please?****
>
> ** **
>
> Kind regards****
>
> Jessica****
>
> ** **
>
> *From:* Jessica Lindholm [mailto:jessica.lindh...@mah.se]
> *Sent:* den 25 januari 2012 13:50
> *To:* dspace-tech@lists.sourceforge.net
> *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****
>
> ** **
>
> jessica.lindh...@mah.se****
>
> +46 (0)40 665 71 39****
>
> http://www.mah.se/bit ****
>
> http://homeweb.mah.se/~bijeli/****
>
> http://www.linkedin.com/in/jessical****
>
> ** **
>
>
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