our RecordManager ( used in 
conjunction with VuFind does deduplication with our own algorithm. This 
might be of some interest to you. RecordManager works standalone, so no 
VuFind installation needed. For some parts it's still in active 
development, but the deduplication has been working pretty well so far. 
A short description of the algorithm is available at 
<>, and the 
actual PHP code is in 
starting at the dedupRecord function.


22.8.2013 18.07, Michael Beccaria kirjoitti:
> Steve,
> I don't think it's so much find a control field (however, the closest match I can use is ISBN or eISBN which has its issues) but also normalizing the data in the fields so that matches are produced. It will no doubt take some time to figure out.
> Mike Beccaria
> Systems Librarian
> Head of Digital Initiative
> Paul Smith's College
> 518.327.6376
> [log in to unmask]
> Become a friend of Paul Smith's Library on Facebook today!
> -----Original Message-----
> From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of McDonald, Stephen
> Sent: Friday, August 16, 2013 8:16 AM
> To: [log in to unmask]
> Subject: Re: [CODE4LIB] De-dup MARC Ebook records
> Michael Beccaria said:
>> Thanks for the replies. To clarify, I am working with 2 (or more in
>> the future) marc records outside of the ILS. I've tried using Marcedit
>> but my usage did vary...not much overlap with the control fields that
>> were available to me. I have a feeling they are a bit varied. I'm also
>> messing around with marcXimiL a little but I'm having trouble getting
>> it to output any records at all. I also was looking at the XC
>> aggregation module but I was having trouble getting that to work
>> properly as well and the listserv was unresponsive. It seemed like
>> good software but it required me to set up an OAI harvest source to
>> allow it to ingest the records and that...well...enough is enough... I
>> think I will probably need to write something, and at least that way I
>> know what it will be doing rather than plowing through software that
>> has little to no support. Please feel free to let me know of a particular strategy you think might work best in this regard...
> If you couldn't get adequate deduping from the control fields available in MarcEdit deduping, what control fields do you think you need to dedup on?  You can actually specify any arbitrary field and subfield for deduping in MarcEdit.
> 					Steve McDonald
> 					[log in to unmask]

Ere Maijala
Kansalliskirjasto / The National Library of Finland