Structured query construction via knowledge graph embedding. Wang, R., Wang, M., Liu, J., Cochez, M., & Decker, S. Knowledge and Information Systems, 62(5):1819-1846, May, 2020.
Structured query construction via knowledge graph embedding [link]Paper  doi  abstract   bibtex   2 downloads  
In order to facilitate the accesses of general users to knowledge graphs, an increasing effort is being exerted to construct graph-structured queries of given natural language questions. At the core of the construction is to deduce the structure of the target query and determine the vertices/edges which constitute the query. Existing query construction methods rely on question understanding and conventional graph-based algorithms which lead to inefficient and degraded performances facing complex natural language questions over knowledge graphs with large scales. In this paper, we focus on this problem and propose a novel framework standing on recent knowledge graph embedding techniques. Our framework first encodes the underlying knowledge graph into a low-dimensional embedding space by leveraging generalized local knowledge graphs. Given a natural language question, the learned embedding representations of the knowledge graph are utilized to compute the query structure and assemble vertices/edges into the target query. Extensive experiments were conducted on the benchmark dataset, and the results demonstrate that our framework outperforms state-of-the-art baseline models regarding effectiveness and efficiency.
@Article{wang2020queryconstruct,
	author={Wang, Ruijie
	and Wang, Meng
	and Liu, Jun
	and Cochez, Michael
	and Decker, Stefan},
	title={Structured query construction via knowledge graph embedding},
	journal={Knowledge and Information Systems},
	year={2020},
	month={May},
	day={01},
	volume={62},
	number={5},
	pages={1819-1846},
	abstract={In order to facilitate the accesses of general users to knowledge graphs, an increasing effort is being exerted to construct graph-structured queries of given natural language questions. At the core of the construction is to deduce the structure of the target query and determine the vertices/edges which constitute the query. Existing query construction methods rely on question understanding and conventional graph-based algorithms which lead to inefficient and degraded performances facing complex natural language questions over knowledge graphs with large scales. In this paper, we focus on this problem and propose a novel framework standing on recent knowledge graph embedding techniques. Our framework first encodes the underlying knowledge graph into a low-dimensional embedding space by leveraging generalized local knowledge graphs. Given a natural language question, the learned embedding representations of the knowledge graph are utilized to compute the query structure and assemble vertices/edges into the target query. Extensive experiments were conducted on the benchmark dataset, and the results demonstrate that our framework outperforms state-of-the-art baseline models regarding effectiveness and efficiency.},
	issn={0219-3116},
	doi={10.1007/s10115-019-01401-x},
	url={https://doi.org/10.1007/s10115-019-01401-x}
}

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