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arXiv 1808.01650cs.AIcs.LG
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基于图依赖特征和卷积神经网络的应答触发

Combining Graph-based Dependency Features with Convolutional Neural Network for Answer Triggering

Indian Institute of Technology Patna(印度理工学院巴特那分校);Universität Hamburg(汉堡大学)

Deepak Gupta, Sarah Kohail, Pushpak Bhattacharyya

摘要:

答案触发是从一组候选答案(如果存在)中为给定问题选择最合适答案的任务。在本文中,我们提出了一种用于答案触发的混合深度学习模型,该模型结合了几种基于依赖图的对齐特征,即图编辑距离,基于图的相似性和依赖图覆盖率,以及卷积神经网络(CNN)的密集向量嵌入。我们在WikiQA数据集上的实验表明,与以前的最先进模型相比,这种组合可以更准确地触发候选答案。对WikiQA数据集的比较研究显示,在问题级别上,F分数的绝对值提高了5.86%。

英文摘要:

Answer triggering is the task of selecting the best-suited answer for a given question from a set of candidate answers if exists. In this paper, we present a hybrid deep learning model for answer triggering, which combines several dependency graph based alignment features, namely graph edit distance, graph-based similarity and dependency graph coverage, with dense vector embeddings from a Convolutional Neural Network (CNN). Our experiments on the WikiQA dataset show that such a combination can more accurately trigger a candidate answer compared to the previous state-of-the-art models. Comparative study on WikiQA dataset shows 5.86% absolute F-score improvement at the question level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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