Text-based Named Entity Expansion Task

A Text-based Named Entity Expansion Task is a Text-based Semantic Class Expansion Task that is restricted to named entity mentions.

• AKA: Named Entity Extraction Task.
• Context:
  • It can be used to populate an Entity Database.
• See: Named Entity Recognition Task, Abstract Class.

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References

2009

• (Zhang et al., 2009) ⇒ Huibin Zhang, Mingjie Zhu, Shuming Shi, and Ji-Rong Wen. (2009). “Employing Topic Models for Pattern-based Semantic Class Discovery.” In: Proceedings of the Annual Meeting of the Association for Computational Linguistics (ACL 2009).
• (Pantel et al., 2009) ⇒ Patrick Pantel, Eric Crestan, Arkady Borkovsky, Ana-Maria Popescu, and Vishnu Vyas. (2009). “Web-Scale Distributional Similarity and Entity Set Expansion.” In: Proceedings of EMNLP Conference (EMNLP 2009).
  • QUOTE: Task Definition: Given a set of seed entities [math]\displaystyle{ S }[/math] = {s₁, s₂, …, s_k} of a class [math]\displaystyle{ C }[/math] = {s₁, s₂, …, s_k, …, s_n} and an unlabeled textual corpus [math]\displaystyle{ T }[/math], find all members of the class C. ... For example, consider the class of Bottled Water Brands. Given the set of seeds [math]\displaystyle{ S }[/math] = {Volvic, San Pellegrino, Gerolsteiner Brunnen, Bling H2O}, our task is to find all other members of this class, such as {Agua Vida, Apenta, Culligan, Dasani, Ethos Water, Iceland Pure Spring Water, Imsdal, …}

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