On 2/19/15 1:40 PM, Bo Ferri wrote:
Hi Paul,maybe I'm wrong, but I think what you are generally looking for (in the Semantic Web world) is the things that are going on at RDF Shapes group [1], or (but I guess you are aware of them)? What they can't do (yet; afaik) is the "family instance loop check", or?On 2/18/2015 11:59 PM, Paul Houle wrote:For small projects you don't need access controls, provenance and that kind of thing, but if you were trying to run something like Freebase and Wikidata where you know what the algebra is the obvious thing to do is use RDF* and SPARQL*.No, why? - Wikidata's data model goes beyond RDF (triple based statements) for good reason. I'm always wondering why the heck we "true" Semantic Web developer still insist so hard on our beloved RDF (which all its drawbacks).
Huh?
Look forward. Think property graph and graph databases in general ;)
What?
You can also combine both perfectly, see, e.g., this graph data model [3] - RDF compatible, but able to store qualified attributes (e.g. order or provenance) at statement basis (without reification et. al).
RDF is a Language, poorly promoted as a Data Model (a term which is ultimately a can of worms, exemplified by all the confusion its inflicted on everyone to date).
Re. editing of graph information, you may have a look at OrientDB's graph editor [4], which offers neat editing options direct in the graph (yay!).
Seriously?I do not know of a single so-called "Graph Database" that even comprehends the concept of data de-silo-fication [1][2][3][4]. Basically, for data to flow it can only do so via identifiers that resolve to descriptions using a platform agnostic protocol.
Data is represented using relations [5][6]. RDF is a Data Representation Language [7]. Links:[1] https://www.pinterest.com/pin/389561436492223291/ -- What sits between You and Your data [2] http://twitter.com/kidehen/status/567723528318124033 -- Open Database Connectivity vs Open Data Connectivity [3] http://kidehen.blogspot.com/2014/08/linked-local-data-lld-and-linked-open.html -- Linked Local Data vs Linked Open Data [4] https://www.pinterest.com/pin/389561436493662240/ -- What RDF is about, illustrated (as they say: a picture speaks a thousand words) [5] http://twitter.com/kidehen/status/568462066207625216 -- What is a Relation? [6] http://twitter.com/kidehen/status/568461114129956864 -- What is a Predicate? [7] http://www.slideshare.net/kidehen/understanding-29894555/55 -- RDF is a Language .
Kingsley
Cheers, Bo [1] http://www.w3.org/2014/data-shapes/wiki/Main_Page [2] http://en.wikipedia.org/wiki/Graph_database [3] https://github.com/dswarm/dswarm-documentation/wiki/Graph-Data-Model[4] http://www.orientechnologies.com/docs/2.0/orientdb-studio.wiki/Graph-Editor.html
-- Regards, Kingsley Idehen Founder & CEO OpenLink Software Company Web: http://www.openlinksw.com Personal Weblog 1: http://kidehen.blogspot.com Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen Twitter Profile: https://twitter.com/kidehen Google+ Profile: https://plus.google.com/+KingsleyIdehen/about LinkedIn Profile: http://www.linkedin.com/in/kidehen Personal WebID: http://kingsley.idehen.net/dataspace/person/kidehen#this
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