A. Borusan

22.05.2017, 16 Uhr c.t. TU Berlin, EN building, seminar room EN 719 (7th floor), Einsteinufer 17, 10587 Berlin: "Beginnings and Current Challenges in Interactive Data Visualization" (Piotr Lasek, University Rzeszów, Poland)

n today's world, interactive visualization of large data is a must.
Since the very beginning, filtering, sampling and aggregation were the
three basic ways of dealing with large amounts of data. All of those
methods helped and still help to squeeze a large number of objects
into a limited number of pixels on a computer's screen. Among those
three, the aggregation however, seems to be the most meaningful way of
preprocessing data for visualization. Thus, the aggregation,
specifically so-called inductive aggregation, became the matter of our
During the presentation we will discuss challenges and architectures
of early visuzalization system and present our prototype visualization
called Skydive. We will also and try to explain why the inductive
aggregation may be useful for data visualization (in terms of
efficiency and meaningfulness); why it is not obvious which
aggregation function could be used as a data aggregation function; and
how graphical channels paucity problem could be addressed by using
modern graphics cards capabilities.