C
Christian S. Jensen
Researcher at Aalborg University
Publications - 541
Citations - 26166
Christian S. Jensen is an academic researcher from Aalborg University. The author has contributed to research in topics: Temporal database & Query language. The author has an hindex of 80, co-authored 507 publications receiving 24234 citations. Previous affiliations of Christian S. Jensen include University of Maryland, College Park & Zhejiang University.
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Proceedings ArticleDOI
Trajectory based optimal segment computation in road network databases
TL;DR: In this article, the authors propose a practical framework for computing this query, where each route traversal is assigned a score that is distributed among the road segments covered by the route according to a score distribution model.
Journal ArticleDOI
Finding lowest-cost paths in settings with safe and preferred zones
TL;DR: This work defines and study Euclidean and spatial network variants of a new path finding problem: given a set of safe or preferred zones with zero or low cost, find paths that minimize the cost of travel from an origin to a destination.
Proceedings Article
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
TL;DR: These proceedings contain the papers selected for publication and presentation at the 19th ACMSIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM SIGSPatIAL GIS 2011) in Chicago, Illinois, USA, from November 1st to 4th, 2011.
Proceedings ArticleDOI
Assessing the Accuracy Benefits of On-the-Fly Trajectory Selection in Fine-Grained Travel-Time Estimation
TL;DR: This work proposes a completely on-line approach, where distributions are computed from trajectories on-the-fly, i.e., when a query arrives, which makes it possible to use arbitrary sets of underlying trajectories for a query.