1. Semantics, RDF and Drupal

2. Gokul N K
Worked on
while working at
Since then I have been working on
at

3. A new form of web content that is
meaningful to computers will unleash
a revolution of possibilities.
- Tim Berners Lee

4. World’s first web page

5. Browser and Websites in 1993

6. A current day web page

7. Google fetches data from Wikipedia.
Even you can.

8. What humans see?
Visual
Indicators

9. What machines see?
Div within a div
within a div

10. What is Semantics
Express Meaning
Knowledge Representation
Ontology
Agents
Evolution of Knowledge

11. Semantics, RDF and Drupal
http://sig.ma/search?q=tim+berners+lee&te
mplateName=

12. Benefits
1. Data becomes interoperable
2. Easier to create mash-up website
3. More relevant results in search
4. Data mining

13. What is RDF
Resource Description Framework
RDF talks about resources, their
properties and their relationships.

14. Schema.org

15. Schema - Event
1. Title
2. Time
3. Location

16. Schema Recipe
1. Ratings for the recipe
2. Number of reviews
3. Duration
4. Calories

17. Schema Person

18. Drupal and RDF
1. Drupal is one of the first platforms to
adopt the concepts of RDF in its core.
2. Drupal 7 has a basic RDF module in its
core.
3. Drupal has various modules which
extend the RDF capabilities.

19. Schema org
http://drupal.org/project/schemaorg
1. Most Basic Module
2. Google Rick snippet
3. RDFa format

20. Microdata
http://drupal.org/project/microdata
1. Microdata strips all the RDFa tags,
hence can’t use both schema and
microdata.
2. Has support for address fields and
Fivestar ratings

21. RDFx
Most extensive module. Has support
for extending the RDF features.
1. RDFx (API)
2. RDF UI
3. Evoc (Import vocabs)
X

22. Semantics, RDF and Drupal
http://dbpedia.org/snorql/?query=SELECT+%3Fpopulation+WHERE+%7B%0D%0
A%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FPittsburgh%3E+dbpedia2%3
ApopulationMetro+%3Fpopulation%0D%0A%7D

23. Semantics, RDF and Drupal
Enough of theory
DEMO TIME
www.gokulnk.com

24. “If properly designed,
the Semantic Web can
assist the evolution of
human knowledge as a
whole.”

25. What is the meaning of Life?
Thank you,
Gokul.