Hurter, ChristopheRitschel, Tobias and Telea, Alexandru2018-04-142018-04-1420181017-4656https://doi.org/10.2312/egt.20181026https://diglib.eg.org:443/handle/10.2312/egt20181026While many data exploration techniques are based on automatic knowledge extraction, other tools exist where the user plays the central role. This tutorial will report actual use-cases where the user interactively explores datasets and extracts relevant information. These techniques must be interactive enough to insure flexibility data exploration, therefore image-based algorithms propose a suitable solution. These algorithms, processed in parallel by the graphic card, are fast and scalable enough to support interactive big data exploration requirements.Humancentered computingHuman computer interaction (HCI)Interaction techniquesInteractive systems and tools10.2312/egt.201810261-3