KGdiff: Tracking the Evolution of Knowledge Graphs

Abbas Keshavarzi, K. Kochut
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引用次数: 4

Abstract

A Knowledge Graph (KG) is a machine-readable, labeled graph-like representation of human knowledge. As the main goal of KG is to represent data by enriching it with computer-processable semantics, the knowledge graph creation usually involves acquiring data from external resources and datasets. In many domains, especially in biomedicine, the data sources continuously evolve, and KG engineers and domain experts must not only track the changes in KG entities and their interconnections but introduce changes to the KG schema and the graph population software. We present a framework to track the KG evolution both in terms of the schema and individuals. KGdiff is a software tool that incrementally collects the relevant meta-data information from a KG and compares it to a prior version the KG. The KG is represented in OWL/RDF/RDFS and the meta-data is collected using domain-independent queries. We evaluate our method on different RDF/OWL data sets (ontologies).
KGdiff:追踪知识图谱的演变
知识图(KG)是一种机器可读的、标记的、类似于图的人类知识表示形式。由于知识图谱的主要目标是用计算机可处理的语义来丰富数据,因此知识图谱的创建通常涉及从外部资源和数据集获取数据。在许多领域,特别是生物医学领域,数据源不断演变,KG工程师和领域专家不仅要跟踪KG实体及其相互关系的变化,还要向KG模式和图种群软件引入变化。我们提出了一个框架来跟踪KG在模式和个体方面的演变。KGdiff是一个软件工具,它增量地从KG收集相关的元数据信息,并将其与KG的先前版本进行比较。KG用OWL/RDF/RDFS表示,元数据使用与领域无关的查询收集。我们在不同的RDF/OWL数据集(本体)上评估我们的方法。
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