Date post: | 21-Jan-2015 |
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Technology |
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Virtual Laboratory for Language Learning (VL3)
THE VL3
Virtual Laboratory for Language Learning (VL3)
REVEALED …
Virtual Laboratory for Language Learning (VL3)
Multidisciplinary Project
Virtual Laboratory for Language Learning (VL3)
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)
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
•Memory
Virtual Laboratory for Language Learning (VL3)
THE STAGES OF THE VL3
Virtual Laboratory for Language Learning (VL3)
The backbone
Virtual Laboratory for Language Learning (VL3)
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)
Lexical categories
18 lexical categories:
adjective adverb article
conjuction demonstrative adjective
demonstrative pronoun
exclamatory indefinite pronoun interrogative
interjection noun possessive adjective
possessive pronoun preposition personal
pronoun
relative pronoun quantifier verb
Virtual Laboratory for Language Learning (VL3)
Features (I)
Virtual Laboratory for Language Learning (VL3)
Features (II)
Virtual Laboratory for Language Learning (VL3)
Lexicon (II)
Virtual Laboratory for Language Learning (VL3)
Syntactic Categories
8 syntactic categories formed by the previous lexical categories:
adjective phrase
adverb phrase
complentizer phrase
determiner phrase
nounphrase
prepositional phrase
quantifier phrase
verbal phrase
Virtual Laboratory for Language Learning (VL3)
Example: DP
Virtual Laboratory for Language Learning (VL3)
Features (III)
The syntactic categories inherit some features from the lexical categories that form them.
Virtual Laboratory for Language Learning (VL3)
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 + VP
Virtual Laboratory for Language Learning (VL3)
Features (IV)
Common features are taken.
DP = article + noun
Virtual Laboratory for Language Learning (VL3)
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.genderDP.number = noun.number
Virtual Laboratory for Language Learning (VL3)
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” ANDverb = “está”
Virtual Laboratory for Language Learning (VL3)
Stay tuned …