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Improved Neural Relation Detection for Knowledge Base Question Answering

Abstract · Apr 20, 2017 15:48 ·

question kbqa relations entity detection base relation bordes cs-cl cs-ai cs-ne

Arxiv Abstract

  • Mo Yu
  • Wenpeng Yin
  • Kazi Saidul Hasan
  • Cicero dos Santos
  • Bing Xiang
  • Bowen Zhou

Relation detection is a core component for many NLP applications including Knowledge Base Question Answering (KBQA). In this paper, we propose a hierarchical recurrent neural network enhanced by residual learning that detects KB relations given an input question. Our method uses deep residual bidirectional LSTMs to compare questions and relation names via different hierarchies of abstraction. Additionally, we propose a simple KBQA system that integrates entity linking and our proposed relation detector to enable one enhance another. Experimental results evidence that our approach achieves not only outstanding relation detection performance, but more importantly, it helps our KBQA system to achieve state-of-the-art accuracy for both single-relation (SimpleQuestions) and multi-relation (WebQSP) QA benchmarks.

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