In the field of information visualization, the concept of “tasks” is an essential component of
theories and methodologies for how a visualization researcher or a practitioner understands …

Tree visualization is one of the best-studied areas of information visualization; researchers
have developed more than 200 visualization and layout techniques for trees. The treevis. net …

We present GoTree, a declarative grammar allowing users to instantiate tree visualizations
by specifying three aspects: visual elements, layout, and coordinate system. Within the set of …

The number of available visualization techniques grows with each year's Visweek, EuroVis,
and PacificVis conferences. This is promising, as it shows that 20 years after the field of …

We present Tree Illustrator, an interactive authoring tool of tree visualizations. Tree Illustrator
is based on GoTree, a declarative grammar allowing users to create tree visualizations by …

Trees are a common form of visual representation that encode hierarchical data structures in
parent-children relationships. Although many software tools can visualize tree structures …

The effectiveness of a visualization technique is dependent on how well it supports the tasks
or goals of an end-user. To measure the effectiveness of a visualization technique …

Advances in computing technology and computer graphics engulfed with huge collections of
data have introduced new visualization techniques. This gives users many choices of …

This article summarises the current state of research into multiple tree visualisations. It
discusses the spectrum of current representation techniques used on single trees, pairs of …

Declarative grammar is becoming an increasingly important technique for understanding
visualization design spaces. The GoTreeScape system presented in the paper allows users …