Transforming a Constituency Treebank into a Dependency Treebank
We present a heuristic technique for converting a constituency treebank into a dependency treebank. In particular, we comment on our experience in converting the Spanish treebank Cast3LB. We extract a context-free grammar from the treebank, automatically identify the head in each rule, and use this...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2005 |
| País: | México |
| Institución: | Instituto Politécnico Nacional |
| Repositorio: | Redalyc-IPN |
| OAI Identifier: | oai:redalyc.org:515751735018 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=515751735018 |
| Access Level: | acceso abierto |
| Palabra clave: | Computación Treebanks dependency constituency grammar formalisms |
| Sumario: | We present a heuristic technique for converting a constituency treebank into a dependency treebank. In particular, we comment on our experience in converting the Spanish treebank Cast3LB. We extract a context-free grammar from the treebank, automatically identify the head in each rule, and use this information for constructing the dependency tree. Our heuristics have 99% precision and 80% recall in identifying the head in the rules, which gives 92% accuracy in identifying dependencies between words. |
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