Verb Interpretation for Basic Action Types: Annotation, Ontology Induction and Creation of Prototypical Scenes

نویسندگان

  • Francesca Frontini
  • Irene De Felice
  • Fahad Khan
  • Irene Russo
  • Monica Monachini
  • Gloria Gagliardi
  • Alessandro Panunzi
چکیده

In the last 20 years dictionaries and lexicographic resources such as WordNet have started to be enriched with multimodal content. Short videos depicting basic actions support the user’s need (especially in second language acquisition) to fully understand the range of applicability of verbs. The IMAGACT project has among its results a repository of action verbs ontologically organised around prototypical action scenes in the form of both video recordings and 3D animations. The creation of the IMAGACT ontology, which consists in deriving action types from corpus instances of action verbs, intra and cross linguistically validating them and producing the prototypical scenes thereof, is the preliminary step for the creation of a resouce that users can browse by verb, learning how to match different action prototypes with the correct verbs in the target language. The mapping of IMAGACT types onto WordNet synsets allows for a mutual enrichment of both resources. Interpretazione dei verbi per tipi azionali di base: annotazione, induzione di ontologia e creazione di scene prototipiche Negli ultimi venti anni dizionari e risorse lessicografiche come WordNet sono stati arricchiti con contenuto multimediale. Brevi video in grado di rappresentare azioni di base supportano i bisogni degli utenti (in particolar modo per quanto riguarda l' acquisizione della seconda lingua) nel comprendere l' ambito di applicabilità dei verbi. Il progetto IMAGACT ha tra i suoi risultati una base di dati di verbi d'azione ontologicamente organizzati e raffiguranti scene che riproducono azioni prototipiche sottoforma di registrazioni video e animazioni 3D. La creazione dell' ontologia IMAGACT che consiste nella derivazione di tipi azionali da istanze di verbi d'azione estratte da un corpus, nella loro validazione intra e crosslinguisticamente e nella conseguente produzione di scene prototipiche, è il passaggio preliminare per la creazione di una risorsa che gli utenti possono consultare partendo dal verbo, imparando come alllineare differenti prototipi d'azione con il verbo corretto nella lingua da apprendere. Il mapping dei tipi di IMAGACT sui synsets di WordNet consente un arricchimento reciproco di entrambe le risorse.

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تاریخ انتشار 2013