Gĩkũyũ

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Automatic Diacritic Restoration for African Languages

The orthography of many African languages includes diacritically marked characters. Falling outside the scope of the standard Latin encoding, these characters are often represented in digital language resources as their unmarked equivalents. This renders corpus compilation more difficult, as these languages typically do not have the benefit of large electronic dictionaries to perform diacritic restoration.

This is a demonstration system for a diacritic restoration method that is able to automatically restore diacritics on the basis of local graphemic context. It is based on the machine learning method of Memory-Based learning. We have applied the method to the African languages of Cilubà, Gĩkũyũ, Kĩkamba, Maa, Sesotho sa Leboa, Tshivenḓa and Yoruba.

You can find more information on this system in this paper

Select a language and enter the word or sentence you want to restore diacritics for.
Cilubà (e.g. mutekete)
Gĩkũyũ (e.g. nituronire)
Kĩkamba (e.g. ningulilikana)
Maasai (e.g. oltunani)
Sesotho sa Leboa (Northern Sotho) (e.g. swanetse)
Tshivenḓa (e.g. tshiswitulo)
Yoruba (e.g. isinku)
 

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Authors:
Guy De Pauw: CNTS - Language Technology Group, University of Antwerp, Antwerp, Belgium, guy [dot] depauw [at] ua [dot] ac [dot] be
Gilles-Maurice de Schryver: African Languages and Cultures, Ghent University, Ghent, Belgium, gillesmaurice [dot] deschryver [at] ugent [dot] be
Peter Waiganjo Wagacha: School of Computing and Informatics, University of Nairobi, Nairobi, Kenya, waiganjo [at] uonbi [dot] ac [dot] ke

Gĩkũyũ Diacritic Placement - Demo

The orthography of Gĩkũyũ includes a number of accented characters to represent the entire vowel system (namely ĩ and ũ). Not available on standard computer keyboards, these characters are usually typed as the nearest available characters (i and u).

Development of a corpus for Gĩkũyũ using machine learning techniques

Development of a corpus for Gĩkũyũ using machine learning techniques, Wagacha, Peter W., De Pauw Guy, and Getao K. , Proceedings of LREC workshop - Networking the development of language resources for African languages, Genoa, Italy, (2006)

A grapheme-based approach to accent restoration in Gĩkũyũ

A grapheme-based approach to accent restoration in Gĩkũyũ, Wagacha, Peter W., De Pauw Guy, and Githinji P. W. , Proceedings of the Fifth International Conference on Language Resources and Evaluation, May, 2006, Genoa, Italy, p.1937-1940, (2006)
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