arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1604.04835cs.CLcs.LG
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SSP:面向文本描述的知识图谱嵌入的语义空间投影

SSP: Semantic Space Projection for Knowledge Graph Embedding with Text Descriptions

Tsinghua University(清华大学)

Han Xiao, Minlie Huang, Xiaoyan Zhu

摘要:

知识表示是人工智能中一个重要的、历史悠久的课题,并且已经有大量的工作用于知识图谱嵌入,其将符号实体和关系投影到低维、实值向量空间中。然而,大多数嵌入方法只关注数据拟合,而忽略了显式的语义表达,导致不可解释的表示。因此,传统的嵌入方法对于诸如问答和实体分类的许多应用具有有限的潜力。为此,本文提出了一种知识图谱\textbf{(KSR)}的语义表示方法,该方法采用两级分层生成过程,在全局上提取多个方面,然后在每个方面为每个三元组分配一个特定的类别。由于方面和范畴都是语义相关的,因此每个方面中的范畴集合被视为这个三元组的语义表示。大量的实验证明,我们的模型大大优于其他国家的最先进的基线。

英文摘要:

Knowledge representation is an important, long-history topic in AI, and there have been a large amount of work for knowledge graph embedding which projects symbolic entities and relations into low-dimensional, real-valued vector space. However, most embedding methods merely concentrate on data fitting and ignore the explicit semantic expression, leading to uninterpretable representations. Thus, traditional embedding methods have limited potentials for many applications such as question answering, and entity classification. To this end, this paper proposes a semantic representation method for knowledge graph \textbf{(KSR)}, which imposes a two-level hierarchical generative process that globally extracts many aspects and then locally assigns a specific category in each aspect for every triple. Since both aspects and categories are semantics-relevant, the collection of categories in each aspect is treated as the semantic representation of this triple. Extensive experiments justify our model outperforms other state-of-the-art baselines substantially.

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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