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Fingerprint Dive into the research topics where Tim A.E. Ophelders is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 4 Similar Profiles
Curve Mathematics
Computing Mathematics
braided river Earth & Environmental Sciences
Polynomial time Mathematics
Trajectories Engineering & Materials Science
Polynomials Engineering & Materials Science
Similarity Measure Mathematics
Snakes Mathematics

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Research Output 2015 2020

Geometry and topology of estuary and braided river channel networks automatically extracted from topographic data

Hiatt, M., Sonke, W. M., Addink, E., van Dijk, W., van Kreveld, M. J., Ophelders, T. A. E., Verbeek, K. A. B., Vlaming, J., Speckmann, B. & Kleinhans, M. G., 5 Jan 2020, In : Journal of Geophysical Research: Earth Surface. 125, 1, 19 p., e2019JF005206.

Research output: Contribution to journalArticleAcademicpeer-review

1 Downloads (Pure)

Computing representative networks for braided rivers

Kleinhans, M. G., van Kreveld, M. J., Ophelders, T. A. E., Sonke, W. M., Speckmann, B. & Verbeek, K. A. B., Nov 2019, In : Journal of Computational Geometry. 10, 1, p. 423-443 21 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Rivers
Computing
Banks (bodies of water)
Sediment
Drainage
11 Downloads (Pure)

Convex polygons in Cartesian products

De Carufel, J. L., Dumitrescu, A., Meulemans, W., Ophelders, T., Pennarun, C., Tóth, C. D. & Verdonschot, S., 1 Jun 2019, 35th International Symposium on Computational Geometry, SoCG 2019. Barequet, G. & Wang, Y. (eds.). Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 17 p. 22. (Leibniz International Proceedings in Informatics (LIPIcs); vol. 129).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Open Access
File
Polynomials

Kinetic volume-based persistence for 1D terrains

Ophelders, T., Sonke, W., Speckmann, B. & Verbeek, K., 18 Mar 2019, p. 38:1-38:7. 7 p.

Research output: Contribution to conferenceAbstractAcademic

Open Access
File
persistence
kinetics
geomorphology

Seth says: weak Fréchet distance is faster, but only if it is continuous and in one dimension

Buchin, K., Ophelders, T. & Speckmann, B., 1 Jan 2019, SODA '19 Proceedings of the Thirtieth Annual ACM-SIAM Symposium on Discrete Algorithms. New York: Association for Computing Machinery, Inc, p. 2887-2899 13 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

One Dimension
Curve
Lower bound
Exact Algorithms
Linear Time

Student theses

Algorithms for comparing moving complex shapes: higher-dimensional Fréchet distance

Author: Ophelders, T., 30 Sep 2014

Supervisor: Buchin, K. (Supervisor 1) & Speckmann, B. (Supervisor 2)

Student thesis: Master

File