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Authors: Tilahun Yeshambel 1 ; Josiane Mothe 2 and Yaregal Assabie 3

Affiliations: 1 IT PhD Program, Addis Ababa University, Addis Ababa, Ethiopia ; 2 INSPE, Univ. de Toulouse, IRIT, UMR5505 CNRS, Toulouse, France ; 3 Department of Computer Science, Addis Ababa University, Addis Ababa, Ethiopia

ISBN: 978-989-758-474-9

Keyword(s): Adhoc Retrieval, Amharic, Complex Morphology, Stem, Root.

Abstract: Amharic is the official language of the government of Ethiopia currently having an estimated population of over 110 million. Like other Semitic languages, Amharic is characterized by complex morphology where thousands of words are generated from a single root form through inflection and derivation. This has made the development of tools for Amharic natural language processing a non-trivial task. Amharic adhoc retrieval faces difficulties due to the complex morphological structure of the language. In this paper, the impact of morphological features on the representation of Amharic documents and queries for adhoc retrieval is investigated. We analyze the effects of stem-based and root-based approaches on Amharic adhoc retrieval effectiveness. Various experiments are conducted on TREC-like Amharic information retrieval test collection using standard evaluation framework and measures. The findings show that a root-based approach outperforms the conventional stem-based approach that prevai ls in many other languages. (More)

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Paper citation in several formats:
Yeshambel, T.; Mothe, J. and Assabie, Y. (2020). Amharic Document Representation for Adhoc Retrieval.In Proceedings of the 12th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management - Volume 1: KDIR, ISBN 978-989-758-474-9, pages 124-134. DOI: 10.5220/0010177301240134

@conference{kdir20,
author={Tilahun Yeshambel. and Josiane Mothe. and Yaregal Assabie.},
title={Amharic Document Representation for Adhoc Retrieval},
booktitle={Proceedings of the 12th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management - Volume 1: KDIR,},
year={2020},
pages={124-134},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010177301240134},
isbn={978-989-758-474-9},
}

TY - CONF

JO - Proceedings of the 12th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management - Volume 1: KDIR,
TI - Amharic Document Representation for Adhoc Retrieval
SN - 978-989-758-474-9
AU - Yeshambel, T.
AU - Mothe, J.
AU - Assabie, Y.
PY - 2020
SP - 124
EP - 134
DO - 10.5220/0010177301240134

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