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Ignatius Ezeani

4 accepted papers

2025

LENS: Learning Entities from Narratives of Skin Cancer

COLING 2025system demonstrations

Learning entities from narratives of skin cancer (LENS) is an automatic entity recognition system built on colloquial writings from skin cancer-related Reddit forums. LENS encapsulates a comprehensive set of 24 labels that address clinical, demographic, and psychosocial aspects of skin cancer. Furth…

2024

The IgboAPI Dataset: Empowering Igbo Language Technologies through Multi-dialectal Enrichment

COLING 2024main

The Igbo language is facing a risk of becoming endangered, as indicated by a 2025 UNESCO study. This highlights the need to develop language technologies for Igbo to foster communication, learning and preservation. To create robust, impactful, and widely adopted language technologies for Igbo, it is…

Cited by 0SourcePDFScholar
2023

Cross-lingual Open-Retrieval Question Answering for African Languages

EMNLP 2023long findings

African languages have far less in-language content available digitally, making it challenging for question answering systems to satisfy the information needs of users. Cross-lingual open-retrieval question answering (XOR QA) systems -- those that retrieve answer content from other languages while s…

Cited by 0SourceScholar
2022

MasakhaNER 2.0: Africa-centric Transfer Learning for Named Entity Recognition

EMNLP 2022main

African languages are spoken by over a billion people, but they are under-represented in NLP research and development. Multiple challenges exist, including the limited availability of annotated training and evaluation datasets as well as the lack of understanding of which settings, languages, and re…