Unsupervised acquisition of concatenative morphology

Lionel Nicolas, Jacques Farré, Cécile Darme


Abstract
Among the linguistic resources formalizing a language, morphological rules are among those that can be achieved in a reasonable time. Nevertheless, since the construction of such resource can require linguistic expertise, morphological rules are still lacking for many languages. The automatized acquisition of morphology is thus an open topic of interest within the NLP field. We present an approach that allows to automatically compute, from raw corpora, a data-representative description of the concatenative mechanisms of a morphology. Our approach takes advantage of phenomena that are observable for all languages using morphological inflection and derivation but are more easy to exploit when dealing with concatenative mechanisms. Since it has been developed toward the objective of being used on as many languages as possible, applying this approach to a varied set of languages needs very few expert work. The results obtained for our first participation in the 2010 edition of MorphoChallenge have confirmed both the practical interest and the potential of the method.
Anthology ID:
L12-1236
Volume:
Proceedings of the Eighth International Conference on Language Resources and Evaluation (LREC'12)
Month:
May
Year:
2012
Address:
Istanbul, Turkey
Editors:
Nicoletta Calzolari, Khalid Choukri, Thierry Declerck, Mehmet Uğur Doğan, Bente Maegaard, Joseph Mariani, Asuncion Moreno, Jan Odijk, Stelios Piperidis
Venue:
LREC
SIG:
Publisher:
European Language Resources Association (ELRA)
Note:
Pages:
865–872
Language:
URL:
http://www.lrec-conf.org/proceedings/lrec2012/pdf/450_Paper.pdf
DOI:
Bibkey:
Cite (ACL):
Lionel Nicolas, Jacques Farré, and Cécile Darme. 2012. Unsupervised acquisition of concatenative morphology. In Proceedings of the Eighth International Conference on Language Resources and Evaluation (LREC'12), pages 865–872, Istanbul, Turkey. European Language Resources Association (ELRA).
Cite (Informal):
Unsupervised acquisition of concatenative morphology (Nicolas et al., LREC 2012)
Copy Citation:
PDF:
http://www.lrec-conf.org/proceedings/lrec2012/pdf/450_Paper.pdf