Philipp Kuntschik


2019

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Improving Named Entity Linking Corpora Quality
Albert Weichselbraun | Adrian M.P. Brasoveanu | Philipp Kuntschik | Lyndon J.B. Nixon
Proceedings of the International Conference on Recent Advances in Natural Language Processing (RANLP 2019)

Gold standard corpora and competitive evaluations play a key role in benchmarking named entity linking (NEL) performance and driving the development of more sophisticated NEL systems. The quality of the used corpora and the used evaluation metrics are crucial in this process. We, therefore, assess the quality of three popular evaluation corpora, identifying four major issues which affect these gold standards: (i) the use of different annotation styles, (ii) incorrect and missing annotations, (iii) Knowledge Base evolution, (iv) and differences in annotating co-occurrences. This paper addresses these issues by formalizing NEL annotations and corpus versioning which allows standardizing corpus creation, supports corpus evolution, and paves the way for the use of lenses to automatically transform between different corpus configurations. In addition, the use of clearly defined scoring rules and evaluation metrics ensures a better comparability of evaluation results.

2018

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Framing Named Entity Linking Error Types
Adrian Braşoveanu | Giuseppe Rizzo | Philipp Kuntschik | Albert Weichselbraun | Lyndon J.B. Nixon
Proceedings of the Eleventh International Conference on Language Resources and Evaluation (LREC 2018)