[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Meta-somethingorother (was the semantic web mega-permathre
Michael Rys wrote: > Once somebody shows me a description logic inference engine that > actually scales, I will become more interested in this aspect. I suspect some people are gambling on the idea that you parallelize the engines and aggregate the results, instead of building very big ones. You start thinking in terms of a distributed search problem insted of a trying to scale a query/inference engine to deal with very large datasets. But it depends on what you mean by scale. Theoretically I guess you get some "webby" leverage by being able ask questions of the all the DL capable nodes in a uniform way the way you can ask any webserver GET. > The one advantage RDF as any extended entity relationship model has over > tree models like XML, is the ability to represent relationship graphs. > However, for that, there is a very well suited tuple based model: the > relational model. Indeed. I don't see that the RDF model has significant advantages over the relational one (that RDF uses globally unique keys is something of a detail). But, for my uses I find being able to gather up triples from various points in a distributed system to do things like track messages very useful and very lightweight and less working than having all the points emit or agree to XML formats or to have a standard stack in place. I guess what I do with RDF here is like data warehousing for systems administrators or an application level syslog. If I formalized things I might/could just use an XML grammar - we talk about this in work from time to time and seem to verring towards RSS/Atom as packaging format for such triples, but the point is that triples seem to be very handy to throw together. By the way, I don't use RDF/OWL for doing like ontology work or defining document formats. cheers Bill
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