Examples of using semantic web technologies in real world applications
Are you working on a (probably commercial) product which uses RDF/OWL/SPARQL technologies? If so, can you please describe your product? ...
semantic-web
Are there any JSF component libraries that generate semantic and cross-browser html markup?
I'm using RichFaces per a client requirement, but the markup it (and the stock JSF controls) generates is an awful mess of nested tables. Are there any control libraries out there that generate nicer markup? AJAX support is a huge plus! ...
Are there any tools to visualize a RDF graph? (please include a screenshot)
I'm looking for a tool that will render a RDF graph in a reasonably useful graphic format. The primary purpose of the graphic format being inclusion into a PowerPoint slide or printing on a large plotter for management review. I am currently using TopBraid Composer which does a reasonably well at visualizing a single entity but doesn't...
Visualize Friend of a Friend (foaf) graph
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 ...
Semantic Web Framework
What semantic web frameworks are there, and what are the advantages / disadvantages of each? I've made extensive use of Jena, and I have looked at Sesame briefly. Are there others I should consider as well? ...
How can I do offline reasoning with Pellet?
I have an OWL ontology and I am using Pellet to do reasoning over it. Like most ontologies it starts by including various standard ontologies: <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xmlns:owl="http:/...
Tools to enable translation of A-Box ontology data
Does anyone know of any tools capable of defining a declarative mapping from T-Box structures from one ontology to another, which when executed can effect translation of A-Box instance data from one ontology's form to another's? I have recently written such a tool to meet my needs, but I was wondering if I reinvented the wheel. ...
Do you leverage Semantic Web technologies? Why or why not?
I'm interested in understanding why people choose to leverage technology built on the W3C Semantic Web standards. How did you make the decision to use the technology you chose and what does it enable you to do that you identify as being unique to the Semantic Web effort? If you have specifically made the decision not to use Semantic We...
What is the semantic web, and why would I want to use it?
Just like it reads. ...
For your semantic web type application, do you use RDF or a proprietary model for the internal representation?
If you've worked on a project that stores data for use with the semantic web, do you use RDF or even OWL as the internal data format or do you have your own data model/ontology that you map to RDF for interoperability? If you use RDF, what are your experiences with implementing various things like cyclical class hierachies? If you do ...
Do you use Microformats, RDF, Dublin Core or another type of sematic markup?
Do you use any of these technologies? Which ones are current and hence sensible to include in a site? Documentation on any seems to be relatively sparse, and usage of any of them limited, as search engines get better, are they even relevant any more? ...
What is the best way to learn about RDF / OWL?
What references offer a good summary/tutorial for using RDF/OWL? There seem to be enough tools (Protege, Topbraid, Jena, etc.) that knowing the syntax of the markup languages is not necessary, but knowing the concepts is, of course, still critical. I'm working through the w3c documents (particularly the RDF Primer) but I'd like to fi...
Where can I find a good collection of public domain owl ontologies for various domains?
I am building an ontology-processing tool and need lots of examples of various owl ontologies, as people are building and using them in the real world. I'm not talking about foundational ontologies such as Cyc, I'm talking about smaller, domain-specific ones. ...
Recommend a Semantic Web book?
I've looked around but most books seem to fall into one of two categories: Either the book talks about SW technologies but doesn't teach you how to use them Or the book is geared for very complex data modeling and ontology creation. Worse, many of those books are outdated. I'm looking for an up-to-date book that teaches technologies...
What is a good RDF library for .net?
I'm looking for a library that can deal with RDF and OWL data. So far I have found: semweb (no owl support for all I know) rowlex (more of a 'browser' application) Your recommendations: LinqToRdf (very interesting, thanks mark!) ...
Semantic value of span
The span element would seem to be exactly like a div, but at the in-line level rather than at the block level, however I can't seem to think of any beneficial logical divisions that the span element can provide. A single sentence, or word if not contained in a sentence, seems to be the smallest logical part. Ignoring CSS, since that will...
Is there a semantic version of <u>?
Hi, In XHTML Strict, it seems that you're not allowed to use the <u> tag any more. Is there a semantic equivalent like there is for <b> and <i>? If not, is there any convention for how to markup underlined text in XHTML? Thanks. ...
Which Triplestore for rapid semantic web development?
Ease of installation/use is the most important factor here - not performance. Small is OK as large datasets are not expected. ...
Semantic representation of a chart.
I'm recoding an old site that contains a chart similar to this: How would this chart be represented with pure HTML? I'm loathed to just include it as an image. I'm thinking a table, just replaced with an image, or perhaps overlaid with absolutely positioned table rows, but I think that may be a bit fragile. Any suggestions welcomed....
SPARQL query - Class and subclass give a class name and namespace
How can i get all the class properties and its sub classes with properties from an RDF datasource using SPARQL query given a class name and namespace? ...