I wrote a script to export twitter friends as foaf rdf description. Now I'm looking for a tool to visualize the friend networks. I tried http://foafscape.berlios.de/ but for 300+ Nodes it is really slow and does a bad job on auto formatting. Any hints for good graph visualization tools? It's ok if they do not support foaf directly, but ...
I'm working with FOAF and RDFa, and struggling to figure out whether I should be using foaf:depiction or foaf:depicts and the correct way to use them. Here's what I've already established: <div class="profile" typeof="foaf:Person"> <p>Employee Name: <span property="foaf:name">Fred Flintstone</span></p> <p><img src="http://www.example.co...
Hi I am trying to write a SPARQL query which should give me all foaf:Agents which aren't foaf:Persons. I can't see a way to apply this OPTIONAL/BOUND construct to this problem, because all the properties like rdfs:subClassOf and rdf:type are transitive and reflexive. I tried this: SELECT * WHERE { ?x rdf:type foaf:Agent OPTIONAL { ...
I would like to store my personal data in a FOAF file on my own server. There is a group of us doing the same thing. We need a couple of custom fields that the standard FOAF implementation doesn't have, ie: availability. How can I add the availability field, and still keep the FOAF file validated? I guess I use the RDF format outside of...
Since there are some major privacy issues with alot of social networking sites I am trying to think about alternatives. One is to let the user keep all the information stored in some kind of file container. Now, I haven't found a single type of container that can hold "generic" information. Only for audio/video. What I want is a containe...
Hi folks, Again a question on Facebook graph API. I would like to get friends of friends via an API call and when I try to do it, I get the following exception, { "error": { "type": "OAuthException", "message": "(#604) Can't lookup all friends of .... Can only lookup for the logged in user (...), or friends of the logged ...