@article {walther11tal, title = {Mod{\'e}lisation et impl{\'e}mentation de ph{\'e}nom{\`e}nes non-canoniques}, journal = {Revue TAL}, volume = {52}, number = {2/2011}, year = {2011}, note = {

Vers la morphologie et au-del\à.

}, month = {12/2011}, pages = {91-122}, chapter = {91}, abstract = {

R\ÉSUM\É. Les ph\énom\ènes flexionnels non canoniques (d\éponence, h\ét\éroclise. . . ) font l\’objet de nombreux travaux en morphologie th\éorique. Toutefois, ces travaux manquent souvent d\’im- pl\émentations associ\ées \à des lexiques \à grande \échelle, pourtant n\écessaires pour comparer objectivement la complexit\é de descriptions morphologiques. Nous montrons comment parsli, notre mod\èle de la morphologie flexionnelle, permet de repr\ésenter ces ph\énom\ènes non cano- niques et de les formaliser en vue d\’une impl\émentation. Nous l\’illustrons au moyen de don- n\ées de langues vari\ées. Nous \évaluons la complexit\é de quatre mod\élisations morphologiques concurrentes pour les verbes du fran\çais gr\âce \à la notion informationnelle de longueur de description et montrons que les concepts nouveaux de parsli r\éduisent la complexit\é des mo- d\élisations morphologiques par rapport \à des mod\èles traditionnels ou plus r\écents.

ABSTRACT. Non-canonical inflection (deponency, heteroclisis. . . ) is extensively studied in the- oretical morphology. However, these studies often lack practical implementations associated with large-scale lexica. Yet these are precisely the requirements for objective comparative stud- ies on the complexity of morphological descriptions. We show how parsli, our model of in- flectional morphology, manages to represent many non-canonical phenomena and to formalise them in way allowing for their subsequent implementation. We illustrate it with data about a variety of languages. We expose experiments conducted on the complexity of four compet- ing descriptions of French verbal inflection, which is evaluated using the information-theoretic concept of description length. We show that the new concepts introduced in parsli reduce the complexity of morphological descriptions w.r.t. both traditional or more recent models.\ 

}, keywords = {Canonicity, Description Complexity, Inflection Pattern, Inflection Zone, Inflectional Morphology, MDL., Paradigm Shape, parsli, Stem Pattern, Stem Zone}, url = {http://web.me.com/gwalther/homepage/Publications_(fr)_files/tal11morpho.pdf}, author = {G{\'e}raldine Walther and Beno{\^\i}t Sagot} } @inproceedings {sagot11sfcm, title = {Non-canonical inflection : data, formalisation and complexity measures.}, volume = {100}, year = {2011}, note = {

Systems and Frameworks for Computational Morphology

}, month = {August 2011}, pages = {23-45}, publisher = {Springer}, chapter = {23}, abstract = {

Non-canonical inflection (suppletion, deponency, heterocli- sis...) is extensively studied in theoretical approaches to morphology. However, these studies often lack practical implementations associated with large-scale lexica. Yet these are precisely the requirements for ob- jective comparative studies on the complexity of morphological descrip- tions. We show how a model of inflectional morphology which can rep- resent many non-canonical phenomena [67], as well as a formalisation and an implementation thereof can be used to evaluate the complexity of competing morphological descriptions. After illustrating the proper- ties of the model with data about French, Latin, Italian, Persian and Sorani Kurdish verbs and about noun classes from Croatian and Slovak we expose experiments conducted on the complexity of four competing descriptions of French verbal inflection. The complexity is evaluated us- ing the information-theoretic concept of description length. We show that the new concepts introduced in the model by [67] enable reducing the complexity of morphological descriptions w.r.t. both traditional or more recent models.\ 

}, keywords = {Canonicity, Description Complexity, Inflection Pat- tern, Inflection Zone, Inflectional Morphology, MDL, Paradigm Shape, Stem Pattern., Stem Zone}, isbn = {978-3-642-23137-7}, issn = {1865-0929}, url = {http://web.me.com/gwalther/homepage/Publications_(fr)_files/sfcm11-updated.pdf}, author = {Beno{\^\i}t Sagot and G{\'e}raldine Walther} }