I wrote a bit about representing structured data in the last post. Here’s some ideas for how I plan to index the data.
Indexing graphs as subject ranges
In indexing triples I need to provide indexed lookups for all 6 of the possible triple query patterns:
s->po
sp->o
p->os
po->s
o->sp
os->p
(s=subject p=property/predicate o=object)
Most mature triplestores also index a 4th query element […]
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Now that I’m up and running and starting to get productive on Gambit-C, I’ve turned my attention back to indexing structured data.
I’ve modified the tagtriples idea a bit to reflect my experience on importing data in other formats. I still think the most effective approach is not to try and define an interchange format, but […]
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One of the first issues I had when evaluating scheme as a possible replacement for Python as my hobby language was its apparent lack of module/library/namespace system. How do people possibly build big programs? I wondered.
Now it turns out most (all?) scheme implementations have features to deal with modules and libraries. Gambit’s is particularly nebulous […]
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Somebody asked me about gambit-c the other day, and why I was using that as opposed to some other language or runtime for my own-time coding stuff.
Despite the scheme language being all cool, the thing that really made his eyes light up was the C features in gambit (it is called gambit-c for a reason). […]
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