Ok, I have a followup on this.

I've made an analogous web service to OCLC's X-Identifier or
LibraryThing's ThingISBN with Open Library's data:

http://ol-identifier.heroku.com/

One of the things that becomes apparent with this is how many
duplicate editions there are (multiple "owl:sameAs"es means the
identifier in question appears in multiple records):

http://ol-identifier.heroku.com/oclc/792033:
<rdf:Description rdf:about="http://ol-identifier.heroku.com/oclc/792033";>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL14464770M"/>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL24210371M"/>
</rdf:Description>

http://ol-identifier.heroku.com/isbn/006251587X:
<rdf:Description rdf:about="http://ol-identifier.heroku.com/isbn/006251587X";>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL22359132M"/>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL9245413M"/>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL38986M"/>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL7290708M"/>
</rdf:Description>

http://ol-identifier.heroku.com/lccn/00004240:
<rdf:Description rdf:about="http://ol-identifier.heroku.com/lccn/00004240";>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL23358959M"/>
<owl:sameAs rdf:resource="http://openlibrary.org/books/OL6774976M"/>
</rdf:Description>

So, my question would be, do editions get merged?  If so, is there
some log of these merges?

By the way, I should have something to show with a feed of deprecated
work IDs tomorrow.

Thanks!
-Ross.
On Mon, Dec 13, 2010 at 4:12 PM, Ross Singer <[email protected]> wrote:
> On Mon, Dec 13, 2010 at 3:13 PM, Edward Betts <[email protected]> wrote:
>> It doesn't create a new work, it uses ID of the existing work with the
>> most editions. If there is a draw it picks the lowest work ID.
>>
>> The other works get turned into redirects to the chosen work.
>>
> Ok, good -- the redirect is a good safety net, if nothing else.
>
>> The changes are also visible here: http://openlibrary.org/people/WorkBot
>>
>>> Is there a way to track the changes to the Work identifiers?  The API
>>> only seems to show the edition ids.
>>
>> We don't have a good feed for watching the changes to work identifiers.
>> What would you use the feed for?
>>
> Well, it would be a lot easier to update anything with the old work id
> to use the new one than to match every edition identifier and change
> it.  In the end, though, it's not a huge deal.
>
>> Currently it is only WorkBot that is merging works, in the future we'll
>> let humans do it as well, as we build that feature we can include a feed
>> of merged works.
>>
> Good to know!
>
> Thanks for all of the pointers,
> -Ross.
>
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