PelletDb:
Scalable, Expressive Semantic
 Reasoning for the Enterprise

 2010 Semantic Technology Conference

         Héct...
Who are we?
Clark & Parsia is a semantic software startup
Offices in DC & Cambridge, MA
Software products for end-user & O...
What is PelletDb?
New reasoner that combines the best of two
worlds:
  Clark & Parsia’s Pellet: expressive, in-memory
  OW...
What is PelletDb?
Pellet
   very expressive
   not sufficiently scalable for some workloads
Oracle 11g R2
   very scalable...
What is PelletDb?
Max Expressivity Mode
Max Scalability Mode
Performance
Max expressivity mode
  Schema & data extraction (Pellet)
  Reasoning (Pellet)
Max scalability mode
  Schema e...
Benefits for Oracle customers
More expressive reasoning: more complete
SPARQL query answers
Access to non-standard reasoni...
Benefits for Pellet customers
Access to Oracle’s world-class
information management systems
    Scalability
    Security
 ...
Other RDF Datastores
PelletDb technology is not specific to Oracle
We are evaluating business case for highly
optimized in...
Roadmap
Q3 2010
  OWL-based integrity constraint validation for
  semantic & relational data
Q1 2011
  Semantic facade ove...
IC Validation

                                   Database-like IC validation
                                   (Closed w...
Semantic Facade

          Specialized OWL 2
          QL reasoner
          Rewriting-based
          approach
          ...
More info
Clark & Parsia LLC
   http://clarkparsia.com/
PelletDb
   http://clarkparsia.com/pelletdb
News, updates, tips/ti...
Questions?
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PelletDb: Scalable Reasoning for Enterprise Semantics

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PelletDb: Scalable Reasoning for Enterprise Semantics

  1. 1. PelletDb: Scalable, Expressive Semantic Reasoning for the Enterprise 2010 Semantic Technology Conference Héctor Pérez-Urbina Clark & Parsia, LLC hector@clarkparsia.com
  2. 2. Who are we? Clark & Parsia is a semantic software startup Offices in DC & Cambridge, MA Software products for end-user & OEM use Provides software development and integration services Specializing in Semantic Web, web services, and advanced AI technologies for federal and enterprise customers http://clarkparsia.com/ Twitter: @candp
  3. 3. What is PelletDb? New reasoner that combines the best of two worlds: Clark & Parsia’s Pellet: expressive, in-memory OWL 2 reasoner Oracle Database Semantic Technologies: scalable, database-backed OWL/RDF reasoner
  4. 4. What is PelletDb? Pellet very expressive not sufficiently scalable for some workloads Oracle 11g R2 very scalable not sufficiently expressive for some problems PelletDb: more scalable & expressive than either Pellet or Oracle alone
  5. 5. What is PelletDb?
  6. 6. Max Expressivity Mode
  7. 7. Max Scalability Mode
  8. 8. Performance Max expressivity mode Schema & data extraction (Pellet) Reasoning (Pellet) Max scalability mode Schema extraction & reasoning (Pellet) Small percentage of time Data reasoning (Oracle) Performance evaluation at http://bit. ly/crNWuN
  9. 9. Benefits for Oracle customers More expressive reasoning: more complete SPARQL query answers Access to non-standard reasoning services Inference explanation SPARQL-DL query answering Incremental reasoning Closed-world integrity constraint validation Automated ontology modularization
  10. 10. Benefits for Pellet customers Access to Oracle’s world-class information management systems Scalability Security Replication Transaction support Oracle addons Enterprise ecosystem ready for OWL 2
  11. 11. Other RDF Datastores PelletDb technology is not specific to Oracle We are evaluating business case for highly optimized integrations with other RDF stores BigData Virtuoso 4Store/5Store ...
  12. 12. Roadmap Q3 2010 OWL-based integrity constraint validation for semantic & relational data Q1 2011 Semantic facade over existing data sources
  13. 13. IC Validation Database-like IC validation (Closed world, UNA) SPARQL translation Incremental validation "Using OWL in Closed-World Applications" by Evren Sirin - 3:30 pm
  14. 14. Semantic Facade Specialized OWL 2 QL reasoner Rewriting-based approach No data explosion Frequently changing data Efficient query answering
  15. 15. More info Clark & Parsia LLC http://clarkparsia.com/ PelletDb http://clarkparsia.com/pelletdb News, updates, tips/ticks on twitter #pelletdb
  16. 16. Questions?

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