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Questions tagged [foaf]

FOAF (an acronym of Friend of a friend) is a machine-readable ontology describing persons, their activities and their relations to other people and objects. Please do not use this tag for questions related to general friend-of-a-friend problem, use e. g. the 'social-network-friendship' tag instead.

FOAF (an acronym of Friend of a friend) is a machine-readable ontology describing persons, their activities and their relations to other people and objects.

FOAF is a descriptive vocabulary expressed using the Resource Description Framework (RDF) and the Web Ontology Language (OWL).

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Offline use of semantic web vocabularies

There are some useful vocabularies out there for use of semantic web applications, one of which is the well known "foaf". How should I use it in an offline system, meaning a network disconnected from the www? Is it downloadable? Should I use some…
DannyL
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SPARQL Query of FOAF doesn't return any result

I want to get some information from the FOAF ontology. I tried the following SPARQL query, but it returns no results. I tried this query to get familiar with FOAF, but what I really want to do is to find all the people that a particular person ?x…
Dihya
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SPARQL DbPedia foaf:name

Trying to execute some queries but when searching for foaf:name resultset is empty. Here's my code: SELECT DISTINCT ?uri ?string WHERE { ?uri rdf:type ?x. ?uri foaf:name 'Cavallo domestico'@it . OPTIONAL { ?uri…
RobMor
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How do I add image url with graph add in rdflib

I am using rdflib==4.1.2. This is my code >>> g=rdflib.Graph() >>> s=rdflib.BNode() >>> FOAF = rdflib.Namespace("http://xmlns.com/foaf/0.1/") >>> g.bind('foaf', FOAF) >>> g.add((s,…
trishnag
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how to modelize a foaf file

I'm doing my master thesis and I'm working in serval files which most of them have a csv extension . I have also a foaf file and I have no idea how to modelize and read this kind of file. What should I do?
0548
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Generic file container for quick read of data

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…
implmentor
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How can I get my facebook friends' and their friends' like history in FOAF structure?

I want to generate a product recommendation system using facebook FOAF data. Can any body tell me how can I get the "like" history of my friends and their friends in FOAF structure?
S. K
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RDFS: How to subclass a FOAF class

Is it possible to subclass a class found in FOAF (http://xmlns.com/foaf/spec/)? I tried something like the code below, but I am not sure if it is the proper way to do it or not.
cgf
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Jena and the difference between listStatements and listObjectsOfProperty

I have a file describing people with the help of FOAF. In Jena I am trying to parse all ages from the profiles and noticed that my listStatements and listObjectsOfProperty gives me different results. I could not easily find any help from the…
ksnabb
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Why doesn't the Jena validator give me warnings?

In the following code, the ValidityReport is always valid; there is no inconsistency detected. I expect that it should give me a warning because I am giving a family name to a FOAF document. Why isn't an inconsistency detected? Model model =…
Ariel
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Get foaf:interest of the user profile

I am currently building a music recommendation system. The first step I want to build a personal user profile using FOAF (friend of a friend), but when using SPARQL I can not get foaf: interest of the file is the user profile.
Pham Hai
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Developing a Semantic Web Application

Although i have a little bit of experience in developing dynamic websites using ASP technologies, but I am new to semantic web programming, and i intend to implement a website based on semantic web technology.I would like to develop a search engine,…
Priyam Maheshwari
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