Title |
Automatic Assignment of Grammatical Relations |
Authors |
Lesmo Leonardo (Dipartimento di Informatica, Università di Torino, c.so Svizzera 185, 10149, Torino (Italy), lesmo@di.unito.it) Lombardo Vincenzo (DISTA – Università del Piemonte Orientale “A. Avogadro”, c.so Borsalino 54, 15100 Alessandria, Italy, Centro di Scienza Cognitiva – Università di Torino, via Lagrange 3, 10123 Torino, Italy, vincenzo@di.unito.it) |
Keywords |
Adjuncts, Complements, Dependency Tree, Grammatical Relations, Subcategorization |
Session |
Session WP2 - Corpus Annotation |
Full Paper |
218.ps, 218.pdf |
Abstract |
This paper presents a method for the assignment of grammatical relation labels in a sentence structure. The method has been implemented in the software tool AGRA (Automatic Grammatical Relation Assigner), which is part of a project for the development of a treebank of Italian sentences, and a knowledge base of Italian subcategorization frames. The annotation schema implements a notion of underspecification, that arranges grammatical relations from generic to specific one onto a hierarchy; the software tool works with hand-coded rules, which apply heuristic knowledge (on syntactic and semantic cues) to distinguish between complements and modifiers. |