ISSN : 1796-203X
Volume : 4    Issue : 8    Date : August 2009

Semi-automatic Generation of Subcategorization Frames for Spanish Verbs Using Ontologies and Verbs
Functional Class
Rodolfo A. Pazos R., José A. Martínez F., Javier González B., María L. Morales-Rodríguez, and Alberto Castro H.
Page(s): 721-726
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This work deals with the semi-automatic generation of subcategorization frames (SCFs) of Spanish verbs;
specifically, given a set of verbs in Spanish and their respective sense, their SCFs are obtained. The
acquisition of SCFs in Spanish has been approached in different works: in some the frames are generated
manually, while in others they are obtained semi-automatically from a tagged corpus; unfortunately in this
case, the results depend on the characteristics of the texts used. The method proposed in this document
combines an ontology-based approach (through lexical relations of verbs) and linguistic knowledge
(functional class of verbs). The relations among base verbs and other verbs were obtained from the Spanish
WordNet ontology, which contains lexical relations among words. Also, the existing relation between the SCF
and the functional class of verbs was used to generate the SCFs. In order to evaluate the method, the SCFs
for 44 base verbs were generated manually, from which 239 SCFs were automatically generated and
validated, yielding an accuracy of 89.38%.

Index Terms
Subcategorization Frames, Spanish verbs, Meaning-Text Theory, lexical relations