Atelach Alemu Argaw


Methods for Amharic Part-of-Speech Tagging
Björn Gambäck | Fredrik Olsson | Atelach Alemu Argaw | Lars Asker
Proceedings of the First Workshop on Language Technologies for African Languages


An Amharic Stemmer : Reducing Words to their Citation Forms
Atelach Alemu Argaw | Lars Asker
Proceedings of the 2007 Workshop on Computational Approaches to Semitic Languages: Common Issues and Resources


pdf bib
Increased Retrieval Performance using Word Sense Discrimination
Atelach Alemu Argaw | Lars Asker
Actes de la 13ème conférence sur le Traitement Automatique des Langues Naturelles. Articles longs

We show that Mutual Information between word pairs can be successfully used to discriminate between word senses in the query translation step of Cross Language Information Retrieval. The experiment is conducted in the context of Amharic to French Cross Language Information Retrieval. We have performed a number of retrieval experiments in which we compare the performance of the sense discriminated and non-discriminated set of query terms against a ranked document collection. The results show an increased performance for the discriminated queries compared to the alternative approach, which uses the fully expanded set of terms.