Posted in Veudas on Oct 29th, 2004 No Comments »
One of the most useful bits of veudas’ functionality is being able to search the knowledgebase for labels (and subproperties) containing a particular string. Unfortunately this is also the slowest operation.
Currently veudas’ ifp store does a table scan over the nodes table for regex searches - very slow (mysql doesnt support a general regex index). […]
Posted in Semantic Web, Python on Oct 25th, 2004 1 Comment »
I’ve been using sparta quite a bit recently, and have found it to be a really cool way of handling rdf in python. For me it’s about 80% there.
The main problem is that fundamentally there’s a mismatch between the way python represents objects and rdf constrains resources: In python, an object has at most […]
Posted in Semantic Web, Veudas on Oct 14th, 2004 3 Comments »
I’ve made some modifications to the table layout used by my experimental smushing store. In particular, I’ve ditched the hashes table, and lumped node hashing in with the literals table. This improves smushing performance as it reduces the number of tables to update (the current biggest overhead when smushing resources on ifp).
Here’s the new layout:
CREATE […]
