CISL Seminar Series: Aperture: A System for Interactive Visualization of Voluminous Geospatial Data

01/20/2021 - 1:00pm to 2:00pm
Virtual

Recording from January 20, 2021

Kevin Bruhwiler
Colorado State University

Abstract
The growth in observational data volumes over the past decade has occurred alongside a need to make sense of the phenomena that underpin them. Visualization is a key component of the data wrangling process that precedes the analyses that informs these insights. The crux of this study is interactive visualizations of spatiotemporal phenomena from voluminous datasets. Spatiotemporal visualizations of voluminous datasets introduce challenges relating to interactivity, overlaying multiple datasets and dynamic feature selection, resource capacity constraints, and scaling. Our methodology to address these challenges relies on a novel mix of algorithms and systems innovations working in concert to ensure effective apportioning and amortization of workloads and enables interactivity during visualizations. In particular our research prototype, Aperture, leverages sketching algorithms, effective query predicate generation and evaluation, avoids performance hotspots, harnesses coprocessors for hardware acceleration, and convolutional neural network based encoders to render visualizations while preserving responsiveness and interactivity. Finally, we also explore issues in effective containerization to support visualization workloads. We also report on several empirical benchmarks that profile and demonstrate the suitability of our methodology to preserve interactivity while utilizing resources effectively to scale.

Biography
Kevin Bruhwiler is a Graduate Research Assistant at Colorado State University. He grew up in Boulder,Colorado and received a Master's in Computer Science in 2020 for work in the fields of distributedsystems, big data, and geospatial data visualization. He is planning to pursue a PhD in Computer Scienceat the University of Southern California.

January 20, 2021
1-2pm MT
Virtual

Contact Taysia ( taysia@ucar.edu ) for calendar invite.