Publications


2013

Wagacha, PW, Pauw GD, Githinji PW.  2013.  A grapheme-based approach for accent restoration in Gıkuyu.

2012

Atieno, LV, Moturi CA, Wagacha PW, Orwa DO, Ogutu JO, Wausi A.  2012.  Successful Implementation of Digital Village Projects: A Factor to Economic Empowerment at the Community Level.

2011

Kituku, B, Wagacha PW, Pauw GD.  2011.  A Memory-Based Approach to Kikamba Named Entity Recognition. Proceedings of Conference on Human Language Technology for Development. :106-111., Alexandria, Egypt: Bibliotheca Alexandrina Abstract
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Chege, K, Ng’Ang’a W, Wagacha PW, Pauw GD, Mutiga J.  2011.  Morphological Analysis of Gikuyu using a Finite State Machine. Proceedings of Conference on Human Language Technology for Development. :112-117., Alexandria, Egypt: Bibliotheca Alexandrina Abstract
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Pauw, GD, Wagacha PW, De Schryver G-M.  2011.  Exploring the SAWA corpus: collection and deployment of a parallel corpus English—Swahili. Language resources and evaluation. 45(3):331-344.: Springer Abstract

Research in machine translation and corpus annotation has greatly benefited from the increasing availability of word-aligned parallel corpora. This paper presents ongoing research on the development and application of the sawa corpus, a two-million-word parallel corpus English-Swahili. We describe the data collection phase and zero in on the difficulties of finding appropriate and easily accessible data for this language pair. In the data annotation phase, the corpus was semi-automatically sentence and word-aligned and morphosyntactic information was added to both the English and Swahili portion of the corpus. The annotated parallel corpus allows us to investigate two possible uses. We describe experiments with the projection of part-of-speech tagging annotation from English onto Swahili, as well as the development of a basic statistical machine translation system for this language pair, using the parallel corpus and a consolidated database of existing English-Swahili translation dictionaries. We particularly focus on the difficulties of translating English into the morphologically more complex Bantu language of Swahili.

2010

Chege, K, Wagacha P, Pauw GD, Muchemi L, Ng'ang'a W, Ngure K, Mutiga J.  2010.  Developing an Open source Spell-checker for G˜ık˜uy˜u. Website
Mbogo, T, Omwenga E, Waiganjo P.  2010.  A Framework for Distributed Learning Objects Repository. : LAP Lambert Academic Publishing AbstractWebsite
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Pauw, GD, Anyango Maajabu NJ, Waiganjo Wagacha P.  2010.  A Knowledge-Light Approach to Luo Machine Translation and Part-of-Speech Tagging. Proceedings of the Second Workshop on African Language Technology (AfLaT 2010). (Guy De Pauw, H. Groenewald, de Schryver, G.-M., Eds.).:15-20., Valetta, Malta: European Language Resources Association (ELRA) Abstract
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2009

Pauw, GD, de Schryver G-M, Waiganjo Wagacha P.  2009.  A Corpus-based Survey of Four Electronic Swahili - English Dictionaries. Lexikos. 19:340. Abstract
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OBWOCHA, MROBOKOROBERT, I DROMWENGAELIJAH, W DRWAGACHAPETER.  2009.  Using Adaptive Link Hiding to Provide Learners with Additional Learning Materials in a Web-Based System for Teaching Object Oriented Programming. VLIR-IUC-UoN International Conference. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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2008

Dharani, N, Kinyamario JI, Wagacha PW, Rodrigues AJ.  2008.  Browsing impact of large herbivores on Acacia xanthophloea Benth in Lake Nakuru National Park, Kenya. Africa Journal of Ecology. 47(2):184–191.
Pauw, GD, Waiganjo Wagacha P, de Schryver G-M.  2008.  Bootstrapping Machine Translation for the Language Pair English - Kiswahili. Special Topics in Computing and ICT Research - Strengthening the Role of ICT in Development. (J. Aisbett, G. Gibbon, A.J. Rodrigues, K.K. Migga, R. Nath, G.R. Renardel, Eds.).:30-37., Kampala, Uganda: Fountain Publishers Abstract
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2007

Pauw, GD, Waiganjo Wagacha P, D.A. Abade.  2007.  Unsupervised Induction of Dholuo Word Classes using Maximum Entropy Learning. Proceedings of the First International Computer Science and ICT Conference. (K. Getao, E. Omwenga, Eds.).:139-143., Nairobi, Kenya: University of Nairobi Abstract
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Pauw, GD, Waiganjo Wagacha P, de Schryver G-M.  2007.  Automatic diacritic restoration for resource-scarce languages. Proceedings of Text, Speech and Dialogue, Tenth International Conference. 4629(Václav Matou{\v s}ek, Pavel Mautner, Eds.).:170-179., Heidelberg, Germany: Springer Berlin / Heidelberg Abstract
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2006

Pauw, GD, De Schryver G-M, Wagacha PW.  2006.  Kiswahili part-of-speech tagger: demonstration system.
Wagacha, PW, Chege D.  2006.  Adaptive and Optimisation Predictive Text Entry for Short Message Service (SMS) . Special topics in Computing and ICT research: Advances in Systems Modelling and ICT Applications. , Kampala: Fountain publishers
Pauw, GD, de Schryver G-M, Waiganjo Wagacha P.  2006.  Data-Driven Part-of-Speech Tagging of Kiswahili. Proceedings of Text, Speech and Dialogue, Ninth International Conference. 4188/2006(P. Sojka, I. Kope{\v c}ek, K. Pala, Eds.).:197–204., Berlin, Germany: Springer Verlag Abstract
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Waiganjo Wagacha, P, Pauw GD, P.W. Githinji.  2006.  A Grapheme-Based Approach for Accent Restoration in Gikuyu, May, 2006. Proceedings of the Fifth International Conference on Language Resources and Evaluation. :1937-1940., Genoa, Italy: European Language Resources Association Abstract
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Waiganjo Wagacha, P, Pauw GD, K. Getao.  2006.  Development of a Corpus for Gikuyu using machine learning techniques, May, 2006. Proceedings of LREC workshop - Networking the development of language resources for African languages. (J.C. Roux, Ed.).:27-30., Genoa, Italy: European Language Resources Association Abstract
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W, DRWAGACHAPETER.  2006.  Capacity building for information and communication technology higher education programmes in Africa: the case of the School of Computing and Informatics, University of Nairobi. Katherine Getao, Peter W. Wagacha, Bernard Manderick.. ICT and Education conference, Santa Clara, Cuba February 2006. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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2005

W, DRWAGACHAPETER.  2005.  Swahili Text-to-Speech System, Kamanda Ngugi, W. Okelo-Odongo, Peter Waiganjo Wagacha, African Journal of Science and Technology (AJST) (ANSTI/UNESCO) July 2005. African Journal of Science and Technology (AJST) (ANSTI/UNESCO). : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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W, DRWAGACHAPETER.  2005.  On Support Vector and Relevance Vector Machines, Peter Waiganjo Wagacha, Bernard Manderick, Maina E. Muuro.. BNAIC 2005 Proceedings of the Seventeenth Belgium-Netherlands Conference on Artificial Intelligence October 17-18, 2005. K.Verbeeck, K. Tuyls, A. Nowe, B. Manderick, B. Kuijpers (eds). Pg 297-304. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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2004

J., PROFRODRIGUESANTHONY, W DRWAGACHAPETER.  2004.  An Integrated Regional ICT Policy for the East Africa Community (EAC): Impact on a Possible Information Revolution.. Proceedings of the Third Conference on Information Technology and Economic Development. 2004 Ghana .INTERCED. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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W, DRWAGACHAPETER.  2004.  Computer-based medical Diagnostic decision assistant, Chepken K. Christopher, Elisha Opiyo, Peter Waiganjo Wagacha. International ICT Workshop: Application of ICT in enhancing eucation higher learning education, April 28-30, 2004, Dar es Salaam, Tanzania.. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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O, MROPIYOELISHATOYNE, W DRWAGACHAPETER.  2004.  Computer-Based Medical Diagnostic Decision Assistant. International ICT Workshop 2004 On Application of ICT in enhancing Higher Learning Education, pp 114-123. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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W, DRWAGACHAPETER.  2004.  A model for introducing and implementing E-learning for delivery of educational content within the African context, Elijah I. Omwenga, Timothy M. Waema, Peter W. Wagacha, African Network of Scientific and Technological Institutions (ANSTI/UNESCO) 2004. African Network of Scientific and Technological Institutions (ANSTI/UNESCO). : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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2003

Wagacha, PW.  2003.  Induction of Decision Trees.
W, DRWAGACHAPETER.  2003.  Ph.D. Thesis. Support Vector Machines: A critical empirical evaluation. School of Computing & Informatics, University of Nairobi, 2003. Proceedings of the Third Conference on Information Technology and Economic Development. 2004 Ghana .INTERCED. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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1997

Xu, S, Waiganjo P, Dias PG, Shi B.  1997.  Testability Prediction for Sequential Circuits Using Neural Network. Proceedings of the 6th Asian Test Symposium. :48–., Washington, DC, USA: IEEE Computer Society Abstract
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1996

W, DRWAGACHAPETER.  1996.  MSc. Thesis. Sequential Circuit Testability Parameter Prediction using Artificial Neural Networks. Shanghai University, 1996. Proceedings of the Third Conference on Information Technology and Economic Development. 2004 Ghana .INTERCED. : Ahmed C.M., Dabelic R., Waiboci L., Jager L.D., Heron L.L. and Johnson H.M. Abstract
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