This FGCS special issue aims at supporting the discussion and the circulation of research on the various kinds and ways for Data Exploration, in a sense that especially stems from the enormous possibilities provided by the emerging Web 3.0 paradigm. Indeed, the availability of data in whatever format and dimension, the growth of semantic technology and availability of APIs for searching through the Web, and the possibility of a new level of integration of data and interoperability of applications, stimulate new bold ideas and suggest that methods, techniques and technologies that were confined to be used within closed environments can be applied, and fully exploited, at an unbelievably larger scale. The papers contained in this issue leverage on this world of opportunities, spanning from user interaction and visualization to linked data and ontologies, to machine learning, data mining and pattern discovery in networks, to social behaviour and recommendations.

这个FGCS特刊旨在从某种意义上说，这尤其是源于新兴的Web 3.0范例所提供的巨大可能性，旨在支持有关数据探索的各种类型和方式的研究和讨论。确实，任何格式和维度的数据可用性，语义技术的增长以及通过Web搜索的API的可用性以及数据集成和应用程序互操作性达到新水平的可能性，都激发了新的大胆想法，并建议局限在封闭环境中使用的方法，技术和技术，可以以难以置信的更大规模加以应用和充分利用。本期所包含的论文充分利用了机遇之门，