rdf: SynopsViz - A Framework for Hierarchical Linked Data Visual Exploration and Analysis. - Nikos Bikakis; Melina Skourla; George Papastefanatos (ESWC (Satellite Events), 2014)

A Hierarchical Framework for Efficient Multilevel Visual Exploration and Analysis. - Nikos Bikakis; George Papastefanatos; Melina Skourla; Timos K. Sellis (CoRR, 2015)

A hierarchical aggregation framework for efficient multilevel visual exploration and analysis. - Nikos Bikakis; George Papastefanatos; Melina Skourla; Timos Sellis (Semantic Web, 2017)