Semantic Web Programming - Hackaton

1. Please read Chapter1 and Chapter2 from the Semantic Web Programming book
2. Install the following software on your computer:
   • Compiling and execution tools: Java 1.6 Software Development Kit (SDK) (or newer)
   • Code-editing tools: Eclipse Integrated Development Environment (IDE) (or equivalent)
   • Semantic Web Programming Framework: Jena Semantic Web Framework 2.5.6 (or newer)
   • Ontology Reasoner: Pellet 1.5.2 (or newer)
3. Optionally you can download:
   • Ontology editing tool: Protege Ontology Editor 4.0 Alpha (or newer)
4. Download and browse the Semantic Web Programming book

• You work on a single project you choose or propose.
• You can have a team of 1-4 persons (2 is optimal, additional people should be justified e.g., GUI specialist, graphic/visualization specialist, DB specialist etc.)
• You should generally use Java and Jena framework, but you may also propose other technology.

Generally a project you develop should

• integrate information from at least two sources,
• align it into a single semantic model and manipulate it
• incorporate ontology-based reasoning (a simple example may be mapping between concepts present in different sources)

Below you have a few example projects, but you are free to choose your topic.

1. Concert Planner:
   • Find artists of a given genre
   • Find information about upcoming concerts of the artists (place, date, costs etc.) Choose a concert nearest the user location.
   • Display a map with a route to the concert.
2. RDFriends
   • Integrate information about your friends into a graph that can be navigated (extra points for visualization)
   • Take information from their FOAF profiles and Facebook activities
   • Add alignment information between Facebook and FOAF ontologies to enable reasoning
3. Travel Map:
   • Create a map of your travels. Add information about visited places (cities, interesting locations etc.) fetching appropriate data from DBPedia.
4. Writer's help:
   • Create a program that will search for additional information (in selected data sources) about objects that appear in a piece of text and will propose to include this additional information.
5. Hobbyst's mashup
   • integrate information on a given topic from several data sources, display in an interesting format.
6. An intelligent agent that given a set of instruction crawls the Semantic Web and responds accurately…

Further inspirations:

• Using NYT Liked Data to build an application
  • Who Went Where? NOTE: This application doesn't use Jena.
• Developing a Semantic Web Application
• Semantic Web Case Studies and Use Cases
• Building Semantic Web and Linked Data Applications
• Linked Data Applications
• Linked Data Browsers, Mashups and other Client Applications

1. Choose your team.
2. Choose your topic.
3. Get to know Jena: do exercises 1-3 from Semantic Web Programming with Jena
4. Enjoy working on your project

• Facebook Graph API Ontology
• Geonames
• FOAF
• DBPedia

• A tree-clustering of the top 50 Pay Level Domain of the Semantic Web

• Virtuoso SPARQL Query Editor
• Predicate Spread on the Semantic Web - visualization

Most useful chapters (IMHO):

• Chapter 2 - Hello Semantic Web World
• Chapter 6 - Discovering Information
• Chapter 8 - Applying a Programming Framework
• Main Page
• Downloads

• http://jena.apache.org/tutorials/index.html
• http://jena.sourceforge.net/tutorial/
• http://jena.sourceforge.net/how-to/model-factory.html
• http://www.devx.com/semantic/Article/34968
• http://www.ibm.com/developerworks/xml/library/j-jena/
• A complete beginner's guide to starting a Jena project in Eclipse

• http://linkeddata.org/guides-and-tutorials