CASCB talk: Graph algorithms for movement data processing
Time
Monday, 5. July 2021
11:45 - 12:45
Location
online
Organizer
Centre for the Advanced Study of Collective Behaviour
Speaker:
Sabine Storandt, University of Konstanz
This event is part of an event series „CASCB Seminar Series“.
Join Zoom meeting: https://zoom.us/j/99809639908
Meeting-ID: 998 0963 9908
Sabine Storandt is a Professor at the University of Konstanz. She is interested in algorithm engineering, graph algorithms and discrete optimization.
Graph algorithms for movement data processing
The talk will provide an overview of efficient methods for indexing, querying, analyzing, and visualizing movement data based on the usage of suitable graph models and data structures. Different approaches for dealing with restricted or unrestricted trajectories are discussed, where the former are obtained from movement in an underlying network, but the latter are not (or only partially). With proper indexing, trajectories intersecting a given space-time cube can be reported within a few microseconds. This enables applications as trajectory clustering and pattern analysis. For movement data visualization, we introduce techniques that faithfully abstract or simplify huge trajectory sets, and provide data structures that allow for real-time movement projection on interactive maps.