2
votes
0answers
16 views
Form generation on OWL classes
Do you know open source projects generating any kind of (preferable HTML) forms (templates) based on the properties the actual class has? There are interesting issues as ranking th …
1
vote
0answers
5 views
Any general ontology for time and space enabling context specific classification?
Anybody know of ontology/ies for describing things in space and time in general (that is, making the description context-sensitive in some sense).
To make it clear, I'm not think …
2
votes
0answers
5 views
Tricky search problem for SPARQL: Find items with numerical near-matches of it’s sub-items to the sub-items of a pattern item
How can I express with SPARQL the following query:
"Given you have 'patternSpectrum', holding a set of peaks, with specified numerical values of their heights, do SELECT all spect …
3
votes
2answers
56 views
What is the best way to represent/determine the “modification time” of a resource?
I'm working on a web site which is backed by an RDF store, and which generates at runtime various views onto this data in various formats. Something that keeps cropping up is the n …
1
vote
1answer
37 views
Both @rel and @rev on one element in RDFa
Does anyone know whether it's permissible to have both the @rel and @rev attributes on an element in RDFa?
This seems like a slightly odd thing to me if it is allowed since it res …
3
votes
2answers
39 views
inverse property from two steps direct property
Suppose you have the following situation:
Car -- hasEngine --> Engine
Engine -- hasPiston --> Piston
How can I specify in owl that this situation implies the existence of …
4
votes
5answers
129 views
Generating unique ID’s in triple-store, ala MySQL AUTO_INCREMENT
I'm under increasing pressure to start using RDF as a back-end for websites, rather than MySQL.
I've been considering the basic "patterns" of use, generally they boil down to crea …
2
votes
1answer
22 views
How to use existing ontologies with Semantic Media Wiki?
Bioclipse recently started using Semantic MediaWiki (thanx to Samuel), which allows me to define new classes, predicates and the sorts. For example, we have a custom class for our …
1
vote
3answers
49 views
Converting Email to RDF
I may soon be building a system which converts incoming emails (from one or more mailing lists) into RDF and stores them in some backend. Probably 4store.
I've not been able to go …
1
vote
1answer
33 views
Open Source Sentiment Analysis
Hi,
Can anyone guide me to an open source Sentiment Analysis package? It can be either Java, c# ,net or Python.
Many thanks
2
votes
0answers
22 views
Experiences with SPIN?
I'm curious what kind of experiences people have had with SPIN? I see that there seems to be a reference implementation for Jena, as well as support in Topbraid. Have you found t …
4
votes
2answers
38 views
wrote or wasWrittenBy ? about connection directionality
I am trying to design two resources (described in rdf) User and BlogEntry. In a relational database design, this is a one-to-many relationship, and the mandated design is to have a …
2
votes
3answers
75 views
Are there such things as RDF editors?
I can spell RDF, RDFS, and OWL; but that's about all I can do, so bare with me.
I think I need an RDF editor.
In Eclipse, I've been playing with TopBraid Composer, which I under …
1
vote
1answer
27 views
What Ruby library do you use for working with RDF?
There was some discussion of this question here: http://stackoverflow.com/questions/931548/the-state-of-rdf-in-ruby where Dave Beckett notes that the Ruby bindings for his Redland …
4
votes
2answers
45 views
How to represent dates and times in RDF?
I have a dataset that has two different date-time datatypes; timestamps and from-to dates (lifespan data, formatted as yyyy–yyyy).
I'm considering issues related to the formatting …