2 research outputs found
GeoCamera: Telling Stories in Geographic Visualizations with Camera Movements
In geographic data videos, camera movements are frequently used and combined
to present information from multiple perspectives. However, creating and
editing camera movements requires significant time and professional skills.
This work aims to lower the barrier of crafting diverse camera movements for
geographic data videos. First, we analyze a corpus of 66 geographic data videos
and derive a design space of camera movements with a dimension for geospatial
targets and one for narrative purposes. Based on the design space, we propose a
set of adaptive camera shots and further develop an interactive tool called
GeoCamera. This interactive tool allows users to flexibly design camera
movements for geographic visualizations. We verify the expressiveness of our
tool through case studies and evaluate its usability with a user study. The
participants find that the tool facilitates the design of camera movements.Comment: 15 pages. Published as a conference paper at the ACM Conference on
Human Factors in Computing Systems (CHI) 202
FoodWise: Food Waste Reduction and Behavior Change on Campus with Data Visualization and Gamification
Food waste presents a substantial challenge with significant environmental
and economic ramifications, and its severity on campus environments is of
particular concern. In response to this, we introduce FoodWise, a
dual-component system tailored to inspire and incentivize campus communities to
reduce food waste. The system consists of a data storytelling dashboard that
graphically displays food waste information from university canteens, coupled
with a mobile web application that encourages users to log their food waste
reduction actions and rewards active participants for their efforts.
Deployed during a two-week food-saving campaign at The Hong Kong University
of Science and Technology (HKUST) in March 2023, FoodWise engaged over 200
participants from the university community, resulting in the logging of over
800 daily food-saving actions. Feedback collected post-campaign underscores the
system's efficacy in elevating user consciousness about food waste and
prompting behavioral shifts towards a more sustainable campus. This paper also
provides insights for enhancing our system, contributing to a broader discourse
on sustainable campus initiatives