Hi Mike and All, Very interesting work! Class-level mappings are quite important to domain-independent data integration, e.g., search engines like Falcons.
And I still have some questions to be clarified. I've downloaded "class_level_lod_constellation.csv", which gives relations between ontologies rather than between classes. Are there any class-level mappings available? And, how do you obtain such mappings? Is it just based on explicitly stated axioms in ontologies, or based on any ontology matching algorithms? Regards, Gong > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike Bergman > Sent: Monday, October 06, 2008 10:13 AM > To: [email protected] > Subject: LOD Constellation > > > Hi LODsters, > > We are pleased to provide a LOD 'constellation' diagram [1] of > class-level mappings within open linked datasets. It is meant to > accompany the LOD cloud diagram [2] that our community has been > using for more than a year to great effect to educate the public > about linked data. > > Fred Giasson did all of the initial analysis behind the creation > of this LOD 'constellation' diagram. The input files behind this > diagram are also available for download [1]. > > I have also provided a bit more background information and > description of the importance of class-level mappings in a > related blog post [3]. > > As that post tries to stress, we now have all of the essential > infrastructure pieces for effectively promoting the linked data > vision. > > Pretty cool! and thanks to all of you for publishing the datasets > and bringing linked data to this current inflection point. > > Regards, Mike > > [1] http://www/umbel.org/lod_constellation.html > [2] > http://www4.wiwiss.fu-berlin.de/bizer/pub/lod-datasets_2008-09-18.html > [3] http://www.mkbergman.com/?p=457 >
