Posts Tagged subject=RDF

Reference: “Triple Stores Aren’t”

From the blog of Eric Hellman

Triple Stores Aren’t

“…all the triple stores in serious use today use more that 3 columns to store the triples. Instead of triples, RDF atoms are now stored as 4-tuples, 5-tuples, 6-tuples or 7-tuples.

Is there anything harmful with the misnomerization of “triple”, enough for the community to try their best to start talking about “tuples”? I think there is. Linked Data is the best example of how a focus on the three-ness of triples can fool people into sub-optimal implementations. I heard this fear expressed several times during the conference, although not in those words. More than once, people expressed concern that once data had been extracted via SPARQL and gone into the Linked Data cloud, there was no way to determine where the data had come from, what its provenance was, or whether is could be trusted. He was absolutely correct- if the implementation was such that the raw triple was allowed to separate from its source. If there was a greater understanding of the un-three-ness of real rdf tuplestores, then implementers of linked data would be more careful not to obliterate the id information that could enable trust and provenance. I come away from the conference both excited by Linked Data and worried that the Linked Data promoters seemed to brush-off this concern.”

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Reference: “A Reflection on the Structure and Process of the Web of Data”

A Reflection on the Structure and Process of the Web of Data

“What has been the sole territory of relational database technologies may soon be displaced by the use of RDF and the triple store. Moreover, because RDF is the common data model utilized by triple stores, it is possible to integrate data sets across different triple stores – across different RDF data providers. This integration is conveniently afforded by the URI and RDF as web standards and is a function foreign to the relational database domain. With the Web of Data, no longer is information isolated in individual inaccessible data silos, but instead is exposed in an open and interconnected environment – the web environment.”

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Use Cases Dictate How You Adopt the Semantic Web

http://www.devx.com/semantic/Article/42350

DevX.com article, starts with the following quote:

“The most widespread—and likely most reported on—Semantic Web technology is a W3C recommendation called RDF (Resource Description Framework). An XML-based language for representing data in knowledge bases, RDF is used in nearly all existing online knowledge bases. But while the spotlight is on RDF, other technologies such as NLP, SPARQL, ontologies, and inference all work in concert to enable the Semantic Web stack.”

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