Joint Learning of Entity Linking Constraints Using a Markov-Logic Network

Hong-Jie Dai ； Richard Tzong-Han Tsai ； Wen-Lian Hsu

《中文計算語言學期刊》 19卷1期 (2014/03) Pp. 11-32

並列摘要

Entity linking (EL) is the task of linking a textual named entity mention to a knowledge base entry. Traditional approaches have addressed the problem by dividing the task into separate stages: entity recognition/classification, entity filtering, and entity mapping, in which different constraints are used to improve the system's performance. Nevertheless, these constraints are executed separately and cannot be used interactively. In this paper, we propose an integrated solution to the task based on a Markov logic network (MLN). We show how the stage decision can be formulated and combined in an MLN. We conducted experiments on the biomedical EL task, gene mention linking (GML), and compared our model's performance with those of two other GML approaches. Our experimental results provide the first comprehensive GML evaluations from three different perspectives: article-wide precision/recall/F-measure (PRF), instance-based PRF, and question answering accuracy. This paper also provides formal definitions of all of the above EL tasks. Experimental results show that our method outperforms the baseline and state-of-the-art systems under all three evaluation schemes.

並列關鍵字

Entity Linking ； Entity Disambiguation ； Markov Logic Network ； Gene Normalization

參考文獻

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