知识图谱是结构化的语义网络知识库, 以符号形式描述概念及其相互关系.
由于知识图谱常被用于交互的知识的发现与推理, 知识图谱可视化受到众多关注 …

An important application of semantic technologies in industry has been the formalisation of
information models using OWL 2 ontologies and the use of RDF for storing and exchanging …

This paper aims to contribute to a better understanding of the literature on open data in three
ways. The first is to develop a descriptive analysis of journals and authors to identify the …

This paper introduces a prospective study of the potential of spatio-temporal graphs (ST-
graphs) and knowledge graphs (K-graphs) for the modelling of geographical phenomena …

In this paper, we propose an OBDA approach for accessing geospatial data stored in
relational databases using the R2RML mappings and OGC standard GeoSPARQL. On the …

There is a large number of datasets published as Linked (Open) Data (LOD/LD). At the same
time, there is also a multitude of tools for publication of LD. However, potential LD …

We propose an OBDA approach for accessing geospatial data stored in relational
databases, using the OGC standard GeoSPARQL and R2RML or OBDA mappings. We …

The maritime security domain is challenged by a number of data analysis needs focusing on
increasing the maritime situation awareness, ie, detection and analysis of abnormal vessel …

In a variety of applications relying on geospatial data, getting insights into heterogeneous
geodata sources is crucial for decision making, but often challenging. The reason is that it …

Abstract Knowledge graphs are an increasingly important source of data and context
information in Data Science. A first step in data analysis is data exploration, in which …