J
Joachim Gudmundsson
Researcher at University of Sydney
Publications - 237
Citations - 5440
Joachim Gudmundsson is an academic researcher from University of Sydney. The author has contributed to research in topics: Approximation algorithm & Planar graph. The author has an hindex of 36, co-authored 237 publications receiving 5052 citations. Previous affiliations of Joachim Gudmundsson include Australian Research Council & NICTA.
Papers
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Proceedings ArticleDOI
Computing longest duration flocks in trajectory data
TL;DR: This work considers the computational efficiency of computing two of the most basic spatio-temporal patterns in trajectories, namely flocks and meetings, and gives several exact and approximation algorithms.
Journal ArticleDOI
Reporting flock patterns
TL;DR: A new definition of a flock is given that is argued to be more realistic than the previous ones, and by the use of techniques from computational geometry the algorithms to detect and report flocks are presented.
Journal ArticleDOI
Spatio-Temporal Analysis of Team Sports -- A Survey
TL;DR: This article categorises the research efforts that use spatio-temporal data from team sports as input and involve non-trivial computation in a coherent framework and identifies a number of open research questions.
Journal ArticleDOI
Detecting commuting patterns by clustering subtrajectories
TL;DR: This paper gives several approximation algorithms, and shows that the problem of finding the 'longest' subtrajectory cluster is as hard as MaxClique to compute and approximate.
Journal ArticleDOI
Spatio-Temporal Analysis of Team Sports
TL;DR: In this paper, the authors survey recent research efforts that use spatio-temporal data from team sports as input and involve non-trivial computation and identify a number of open research questions.