Vl3.lab presentation.march19 2012

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Vl3.lab presentation.march19 2012

  1. 1. THE VL3Virtual Laboratory for Language Learning (VL3)
  2. 2. REVEALED …Virtual Laboratory for Language Learning (VL3)
  3. 3. Multidisciplinary ProjectVirtual Laboratory for Language Learning (VL3)
  4. 4. VL3 • Prototype of a virtual language learning lab Focus: Dialogue System Technology Technological Platform: Sintagma (Natural Language Inc.) Sintagma: allows for a complete, coherent and flexible treatment of natural language comprehension and dialogue management.Virtual Laboratory for Language Learning (VL3)
  5. 5. SINTAGMA •Based on grammatical analysis strategies (superior to using keyword spotting) •Lexical level: words are analyzed in microseconds •Representation of anaphoric expressions •Allows for immediate correction •MemoryVirtual Laboratory for Language Learning (VL3)
  6. 6. THE STAGES OF THE VL3Virtual Laboratory for Language Learning (VL3)
  7. 7. The backboneVirtual Laboratory for Language Learning (VL3)
  8. 8. Lexicon Database with over 1,200,000 words in Spanish clasified in lexical categories and annotated with values for certain features.Virtual Laboratory for Language Learning (VL3)
  9. 9. Lexical categories 18 lexical categories: adjective adverb article demonstrative demonstrative conjuction adjective pronoun indefinite exclamatory interrogative pronoun possessive interjection noun adjective possessive personal preposition pronoun pronoun relative quantifier verb pronounVirtual Laboratory for Language Learning (VL3)
  10. 10. Features (I)Virtual Laboratory for Language Learning (VL3)
  11. 11. Features (II)Virtual Laboratory for Language Learning (VL3)
  12. 12. Lexicon (II)Virtual Laboratory for Language Learning (VL3)
  13. 13. Syntactic Categories 8 syntactic categories formed by the previous lexical categories: adjective adverb complentizer determiner phrase phrase phrase phrase noun prepositional quantifier verbal phrase phrase phrase phraseVirtual Laboratory for Language Learning (VL3)
  14. 14. Example: DPVirtual Laboratory for Language Learning (VL3)
  15. 15. Features (III) The syntactic categories inherit some features from the lexical categories that form them.Virtual Laboratory for Language Learning (VL3)
  16. 16. Grammar A grammar is a set of rules that determine how to build correct expressions. They are formed by lexical and syntactic categories in a specific order.  AdjP = adverb? + adjective  NP = noun + AdjP?  DP = article + NP  VP = verb + DP  P = DP + VPVirtual Laboratory for Language Learning (VL3)
  17. 17. Features (IV) Common features are taken.  DP = article + nounVirtual Laboratory for Language Learning (VL3)
  18. 18. Features (V) Features provide feedback. DP = article + noun, but also  IF article.gender ≠ noun.gender THEN Error: gender agreement  IF article.number ≠ noun.number THEN Error: number agreement  ELSE DP.gender = noun.gender DP.number = noun.numberVirtual Laboratory for Language Learning (VL3)
  19. 19. Scenarios Specific rules supported by syntactic categories. “¿Cómo está tu hermano?” “¿Cómo está su hijo pequeño?” “¿Cómo está la madre de tu amigo?” HOWRU = interrogative + verb + DP, but also interrogative = “cómo” AND verb = “está”Virtual Laboratory for Language Learning (VL3)
  20. 20. Stay tuned …Virtual Laboratory for Language Learning (VL3)

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