Changes between Version 3 and Version 4 of PimoService

Timestamp:

02/16/06 21:22:28 (19 years ago)

Author:

fmittag

Comment:

described experiences with inference

PimoService

@@ -40 +40 @@
 something like a semi-naive bottom-up evaluation, otherwise
 you will derive the same new triples over and over again).
+
+= Comment by Florian Mittag =
+
+We tried to do just this, but it turned out to be anything else than trivial. The inference engine of sesame described above is only applicable on !MemoryStore, but we need it for a !NativeStore. Converting the code to do this would mean to implement an inferencer on the native sail, which is quite complicated due to many dependencies on the inner working of the !MemoryStore.
+
+Gunnar hacked an improvement of the Jena inferencer, that will do what we want with little transactions (ie only one). Additionaly we will try to create all necessary triples on creation or deletion of classes and things, so an inference engine hopefully won't be needed. Still, it is good to have a backup ;-)