Homework 1

The link to the textbook on the original class web page has gone stale. There is now a local copy.

Reading

You should read:

• To cover material up until now:
  • Chapter 1 of the textbook
  • Chapter 3, sections 3.1- 3.3 of the textbook
  • If you are unfamiliar with XML, you may want to read chapter 2, sections 2.1, 2.2, and 2.4
  • http://www.w3.org/TR/2003/PR-rdf-syntax-grammar-20031215/#section-Syntax is an excellent feature by feature example based tour of RDF/XML. Makes for a good reference as well as tutorial
• For next time, work through:
  • The Python Tutorial <http://python.org/doc/current/tut/tut.html>

Problems

1. Convert the following Turtle to RDF/XML (by hand). The RDF/XML must be correct and express the same triples as the Turtle. The RDF/XML should strive to be readable (i.e., using helpful abbreviations...no N-Triples in RDF/XML). Note that there are constructs that we didn't cover in class (e.g., datatype and lang), you should look up the syntax in the book on in the RDF/XML specification (links above)

   
   	  @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
   	  @prefix dc: <http://purl.org/dc/elements/1.1/>.
   	  @prefix ex: <http://www.example.org/CMCS498w/2004/02/02/lecture#>.
   	  @prefix foaf: <http://xmlns.com/foaf/0.1/>.
   	  @prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
   
   	  <http://www.mindswap.org/2004/CMCS498w/talks/basicGraphs>
                      dc:creator _:bijan;
   		   dc:title "RDF: Basic Concepts and Syntax";
   		   dc:title "RDF: Concepts de base et syntaxe"@fr ;
                      ex:webPageURI "http://www.mindswap.org/~bparsia/talks/CMCS498w/basicGraphs";
   		   dc:relation <http://www.faqs.org/rfcs/rfc2396.html>,
   		               <http://www.w3.org/TR/rdf-mt/#graphsyntax>,
   		               <http://www.ilrt.bris.ac.uk/discovery/2004/01/turtle/>;
   		   dc:date "2004-02-02"^^xsd:date.
             _:bijan foaf:mbox <mailto:bparsia@isr.umd.edu>, <mailto:bijan@monkeyfist.com>;
   	          rdf:type ex:Person, ex:Instructor.
   	  <http://www.ilrt.bris.ac.uk/discovery/2004/01/turtle/>
   		   dc:creator [foaf:name "Dave Beckett";
   	                       rdf:type ex:Person];
   	           rdf:type ex:Specification.

2. Translate the follow English paragraph to syntactically correct RDF/XML. You should coin URIs for individuals and classes and properties as you see fit:

   The Semantic Web depends on three langauges, RDF, RDF Schema and OWL, each of which is being developed by the W3C. RDF and RDFS are being developed by the same Working Group.

Sumbission

Each document should be a distinct attachement to an email message. The email message should be addressed to bparsia@isr.umd.edu with the subject line: "[CMCS498w] Homework 1". The attachments should be named problem1.rdf and problem2.rdf, respectively. The homework is due by start of next class (Wed, Feb. 11th).