Re: Neo4j and Topic Maps

Hi Murray, All

It's not Neo4j but we have built a native NoSQL Semantic store for the
.NET platform. On top of this are three levels of api. A complete
Entity Framework Model (strongly typed with LINQ support), a generic
proxy API (very much like TMRM) and a low level SPARQL API.

While this is a quad store the idea is that the different layers on
top allow people to build different kinds of (meta) model systems. So
TMRM could be done in terms of the generic proxy API for example, and
TMDM *could* be done in terms of the Entity Framework, or you could
build the bits of TMDM you like/ need in RDF and use SPARQL.

We are currently in a developer preview phase so if anyone wants to
have a play with a Native NoSQL Semantic store on .NET then please
take a look at http://www.brightstardb.com.

Cheers,

Graham

On 6 December 2011 00:21, Murray Altheim <[email protected]> wrote:
> Hello.
>
> Patrick has blogged rather extensively[1] on Neo4j[2] but I'm
> wondering if anyone has already started work on a Neo4j-based
> Topic Map engine, or a backend for an existing Topic Map engine.
> I realise I might make some people squirm if I suggested I was
> considering implementing a backend for TM4j (given its status).
>
> A more favourable idea might be implementing a backend for Ontopia
> or writing a new engine on top of Neo4j directly. The latter could
> be a lot more work and would fail to take advantage of all of
> Ontopia's other infrastructure but could also be more suitable if
> one only had a requirement for providing an engine, or if one were
> interested in implementing the TMRM instead of the TMDM.
>
> Anyone already started on something like this in open source, or
> planned open source? I hate to reinvent any wheels.
>
> Murray
>
> [1] http://tm.durusau.net/?cat=155
> [2] http://neo4j.org/
> ...........................................................................
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