Skip to main content

Research Repository

Advanced Search

Outputs (6)

Learning-Augmented Query Policies for Minimum Spanning Tree with Uncertainty (2022)
Presentation / Conference Contribution
Erlebach, T., de Lima, M. S., Megow, N., & Schlöter, J. (2022). Learning-Augmented Query Policies for Minimum Spanning Tree with Uncertainty. In S. Chechik, G. Navarro, E. Rotenberg, & G. Herman (Eds.), 30th Annual European Symposium on Algorithms (ESA 2022) (12:1-12:16). https://doi.org/10.4230/lipics.esa.2022.12

We study how to utilize (possibly erroneous) predictions in a model for computing under uncertainty in which an algorithm can query unknown data. Our aim is to minimize the number of queries needed to solve the minimum spanning tree problem, a fundam... Read More about Learning-Augmented Query Policies for Minimum Spanning Tree with Uncertainty.

Round-competitive algorithms for uncertainty problems with parallel queries (2022)
Journal Article
Erlebach, T., Hoffmann, M., & de Lima, M. S. (2023). Round-competitive algorithms for uncertainty problems with parallel queries. Algorithmica, 85(2), 406-443. https://doi.org/10.1007/s00453-022-01035-6

In computing with explorable uncertainty, one considers problems where the values of some input elements are uncertain, typically represented as intervals, but can be obtained using queries. Previous work has considered query minimization in the sett... Read More about Round-competitive algorithms for uncertainty problems with parallel queries.

Exploration of k-Edge-Deficient Temporal Graphs (2022)
Journal Article
Erlebach, T., & Spooner, J. T. (2022). Exploration of k-Edge-Deficient Temporal Graphs. Acta Informatica, 59(4), 387-407. https://doi.org/10.1007/s00236-022-00421-5

A temporal graph with lifetime L is a sequence of L graphs G1, . . . , GL, called layers, all of which have the same vertex set V but can have different edge sets. The underlying graph is the graph with vertex set V that contains all the edges that a... Read More about Exploration of k-Edge-Deficient Temporal Graphs.

Parameterized temporal exploration problems (2022)
Presentation / Conference Contribution
Erlebach, T., & Spooner, J. T. (2022). Parameterized temporal exploration problems. In J. Aspnes, & O. Michail (Eds.), . https://doi.org/10.4230/lipics.sand.2022.15

In this paper we study the fixed-parameter tractability of the problem of deciding whether a given temporal graph G admits a temporal walk that visits all vertices (temporal exploration) or, in some problem variants, a certain subset of the vertices.... Read More about Parameterized temporal exploration problems.

Car-Sharing between Two Locations: Online Scheduling with Flexible Advance Bookings (2022)
Journal Article
Luo, K., Erlebach, T., & Xu, Y. (2022). Car-Sharing between Two Locations: Online Scheduling with Flexible Advance Bookings. Discrete Applied Mathematics, 313, 53-66. https://doi.org/10.1016/j.dam.2022.01.016

We study an online scheduling problem that is motivated by applications such as car-sharing. Users submit ride requests, and the scheduler aims to accept requests of maximum total profit using a single server (car). Each ride request specifies the pi... Read More about Car-Sharing between Two Locations: Online Scheduling with Flexible Advance Bookings.