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μRaptor: A DOM-based system with appetite for hCard elements

Winner system of the Linked Data for Information Extraction Challenge 2014, LD4IE at ISWC

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μRaptor: A DOM-based system with appetite for hCard elements

  1. 1. μRaptor A DOM based system with appetite for hCard elements
  2. 2. μRaptor is hungry
  3. 3. Training Phase Clean the HTML
  4. 4. Training Phase Clean the HTML DOM sub-trees
  5. 5. Training Phase Clean the HTML DOM sub-trees CSS class co-occurrence author
  6. 6. Training Phase Clean the HTML DOM sub-trees CSS class co-occurrence CSS Selectors
  7. 7. Training Phase Clean the HTML DOM sub-trees CSS class co-occurrence Value Constraints CSS Selectors vcard:email mailto : ALPHA PUNCTUATION ALL_LOWERCASE . ALL_LOWERCASE vcard:email mailto : ALPHA PUNCTUATION ALL_LOWERCASE . com vcard:email mailto : ALPHA @ ALPHANUMERIC . ALL_LOWERCASE vcard:email mailto : ALPHA @ ALPHANUMERIC . com vcard:email mailto : ALL_UPPERCASE ****@ ALL_LOWERCASE . ALL_LOWERCASE vcard:bday NUMBER - SMALL_NUMBER - SMALL_NUMBER vcard:bday MEDIUM_NUMBER - SMALL_NUMBER - SMALL_NUMBER We could determine patterns for emails for example: … or even for birthdays 
  8. 8. Extraction Phase Clean the HTML DOM sub-trees CSS class co-occurrence Value Constraints Pattern Detection CSS Selectors
  9. 9. Extraction Phase Clean the HTML DOM sub-trees CSS class co-occurrence Value Constraints Pattern Detection Elements Qualification CSS Selectors
  10. 10. Clean the HTML DOM sub-trees CSS class co-occurrence Value Constraints Pattern Detection Elements Qualification Models Validation CSS Selectors Extraction Phase RDF Model From μRaptor RDF Model Test set ? = 0.94 = 0.7 = 0.8
  11. 11. μRaptor https://github.com/emir-munoz/uraptor
  12. 12. We made the discovery of the new μRaptor species and I am very pleased some researchers helped us understanding its feeding habits Godzilla is a doll compared to μRaptor! I am currently working on a script for an upcoming movie As a kid I always wanted to see an actual dinosaur. Today my dream comes true Damn, he is better than me!

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