Dear Luciano,
My research field is p2p networks, DHTs and recently I'm adding
semantics to all these. Just a few days ago, I subscribed myself to
this list, when I've found the LOD project. I'm following your
debate about how to share the data.
I think the LOD project is very interesting and goes right to the
point to interconect data on the web, that is why the semantic web
idea was created for.
As I'm new in this "world", please, correct me if I'm wrong about
something..
One thing that I'm realizing is that the manner that the RDF data is
found is very "centralized". Sites like "Ping the Semantic Web" and
"Sindice" are fed with location of RDF data by the very users of
these data. They're like a big index of RDF bases. Is that so?
you say "found" centralized - this is right to some extent. It is
published decentralized and you can browse over this decentralized
graphs, however, you also need some global index for lookups, etc. and
that's what the projects you named are providing
What I'm researching, and hope some feedback from you guys about, is
how to create a network infrastructure, using the concepts of p2p
(structured and unstructured), that all RDF bases can be put on top
of.
sounds interesting. You should definitely look at the projects at EPFL
(Prof. Karl Aberer), e.g. ALVIS search engine [1], which is also based
on DHTs. They did also some projects towards RDF storage (GridVine).
I think you'll have to take care not to assume people would abandon
basic REST architecture and use P2P - that won't happen. As you said,
building an "overlay" sounds reasonable - so, I could imagine to build
something like Sindice & co based on DHTs.
In a simple way, what I'm thinking of is an overlay network used to
spread and recover semantic data (RDF) naturally.
To publish your data or query about some data, you just need to have
a node that is part of this overlay network (it could be one node
per community...) or to know one node that is part of it. This
overlay network would be composed by semantic links that
interconnect the nodes, having semantic values in this links.
I'm sure, at least providing LOD will rely on HTTP solely. I could
imagine another infrastructure for corprorate environments, e.g.
enterprise storage, separate projects, but the Linked Open Data web
must be based on very simple already existing technologies and tools
which are already there
Note this is my opinion only.
Best regards,
AndyL
[1] http://cosco.hiit.fi/search/alvis.html
I know it is very vague idea as it was presented here, but I hope
you could send me some feedback.
Am I getting all these correctly? Is there someone that is thinking
about these issues? What do you think about it? Any advices/critics?
Thank you for your attention.
Best regards,
Luciano
---------------------------------
Luciano Bernardes de Paula
DCA - FEEC - Unicamp
www.dca.fee.unicamp.br/~luciano
---------------------------------
Veja quais são os assuntos do momento no Yahoo! +Buscados
http://br.maisbuscados.yahoo.com
http://www.langegger.at
----------------------------------------------------------------------
Dipl.-Ing.(FH) Andreas Langegger
Institute for Applied Knowledge Processing
Johannes Kepler University Linz
A-4040 Linz, Altenberger Straße 69
