English

Simple Large-scale Relation Extraction from Unstructured Text

Computation and Language 2018-03-28 v1

Abstract

Knowledge-based question answering relies on the availability of facts, the majority of which cannot be found in structured sources (e.g. Wikipedia info-boxes, Wikidata). One of the major components of extracting facts from unstructured text is Relation Extraction (RE). In this paper we propose a novel method for creating distant (weak) supervision labels for training a large-scale RE system. We also provide new evidence about the effectiveness of neural network approaches by decoupling the model architecture from the feature design of a state-of-the-art neural network system. Surprisingly, a much simpler classifier trained on similar features performs on par with the highly complex neural network system (at 75x reduction to the training time), suggesting that the features are a bigger contributor to the final performance.

Keywords

Cite

@article{arxiv.1803.09091,
  title  = {Simple Large-scale Relation Extraction from Unstructured Text},
  author = {Christos Christodoulopoulos and Arpit Mittal},
  journal= {arXiv preprint arXiv:1803.09091},
  year   = {2018}
}

Comments

To be published in LREC 2018

R2 v1 2026-06-23T01:03:52.291Z