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SynCro - Parsing Simple Croatian Sentences

SynCro - Parsing Simple Croatian Sentences. Kristina Vučković, Božo Bekavac , Zdravko Dovedan University of Zagreb, Faculty of Humanities and Social Science { kvuckovi, bbekavac ,zdovedan } @ ffzg.hr NooJ2009 Tozeur 2009-06- 09. Overview of the work.

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SynCro - Parsing Simple Croatian Sentences

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  1. SynCro - Parsing Simple Croatian Sentences Kristina Vučković, Božo Bekavac, Zdravko Dovedan University of Zagreb, Faculty of Humanities and Social Science {kvuckovi, bbekavac,zdovedan}@ffzg.hr NooJ2009Tozeur2009-06-09 NooJ2009Tozeur 2009-06-09

  2. Overview of the work • on our way to complete parse trees for Croatian sentences • building partial trees for simple Croatian sentences • favor of precision over recall • Building syntactic parse trees for Croatian is quite a challenge! • properties of Croatian language: • mostly free word (better to say constituent?) order → scrambling very frequent • could be a long distance between parts of predicate NooJ2009Tozeur 2009-06-09

  3. Syntactic trees • at this stage, the following structures of parse trees are described • verb • subject - verb • subject - verb - direct object • subject - verb - direct (and, or indirect object) • in addition to all these combinations, we can detect • adverbial phrases of place and • adverbial phrases of time (temporal expressions) • Complex combinations (e.g. multiple PPs) are not described NooJ2009Tozeur 2009-06-09

  4. Sentance structure in Croatian <subject> <predicate> <predicate> <object_D> <object_ID> <A_time> <subject> <A_place> <predicate> <subject> NooJ2009Tozeur 2009-06-09

  5. Recognition of: predicate node NooJ2009Tozeur 2009-06-09

  6. Recognition of: subject node NooJ2009Tozeur 2009-06-09

  7. Recognition of: direct object node NooJ2009Tozeur 2009-06-09

  8. Recognition of: indirect object node NooJ2009Tozeur 2009-06-09

  9. Recognition of: Adverbs of Time NooJ2009Tozeur 2009-06-09

  10. Recognition of: Adverbs of Place NooJ2009Tozeur 2009-06-09

  11. Exampless NooJ2009Tozeur 2009-06-09

  12. Exampless NooJ2009Tozeur 2009-06-09

  13. Exampless NooJ2009Tozeur 2009-06-09

  14. Exampless NooJ2009Tozeur 2009-06-09

  15. Exampless NooJ2009Tozeur 2009-06-09

  16. Exampless • dislocated predicate <PRED> NooJ2009Tozeur 2009-06-09

  17. Exampless • dislocated predicate <PRED> NooJ2009Tozeur 2009-06-09

  18. Exampless • dislocated predicate <PRED> NooJ2009Tozeur 2009-06-09

  19. Exampless • dislocated predicate <PRED> and dislocated subject <SUB> NooJ2009Tozeur 2009-06-09

  20. Addition to the Lexicon • For recognizing Adverbials of Time and Place: • Adjectives +time / + place • R+vr • R+mt • Prepositions +time / + place • S+vr • S+mt NooJ2009Tozeur 2009-06-09

  21. if there is a nominal predicate if the <NP> node is a coordination made of 2 or more <NP>’s of different gender if <S> has more than one annotation ex. The child was very smart. -> The child was ->was very smart. Problems and Future Work • ex. • The boy and a girl were very smart. ->The boy and a girl =><NP+p+m> • ex. • He was singing from March to April. • He was singing from Paris to Tozeur. NooJ2009Tozeur 2009-06-09

  22. NooJ2009Tozeur 2009-06-09

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