The use of timeline to visualize time-series data is one of the most intuitive and commonly used methods, and is
used for widely-used applications such as stock market data visualization, and tracking of poll data of election
candidates over time. While useful, these timeline visualizations are lacking in contextual information of events
which are related or cause changes in the data. We have developed a system that enhances timeline visualization
with display of relevant news events and their corresponding images, so that users can not only see the changes
in the data, but also understand the reasons behind the changes. We have also conducted a user study to test
the effectiveness of our ideas.
We present MTVis, a multi-touch interactive tree visualization system. The multi-touch interface display hardware
is built using the LED-LP technology, and the tree layout is based on RINGS, but enhanced with multitouch
interactions. We describe the features of the system, and how the multi-touch interface enhances the
user's experience in exploring the tree data structure. In particular, the multi-touch interface allows the user
to simultaneously control two child nodes of the root, and rotate them so that some nodes are magnified, while
preserving the layout of the tree. We also describe the other meaninful touch screen gestures the users can use
to intuitively explore the tree.
Different visual representations of a tree can provide different views
of the same data, leading the viewer to obtain different information,
and gain different knowledge. Any visual representation of a tree,
therefore, may potentially obscure some important aspects of the data,
or sometimes even mislead the user.
We create Tree-Panels, a tree visualization system that provides
four simultaneous visualizations of a tree.
Our user study shows that different tree representations
used in Tree-Panels can uncover different and complementary
information about the data.
Conference Committee Involvement (3)
Visualization and Data Analysis 2013
4 February 2013 | Burlingame, California, United States
Visualization and Data Analysis 2012
23 January 2012 | Burlingame, California, United States
Visualization and Data Analysis 2011
24 January 2011 | San Francisco Airport, California, United States