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George B. Mertzios

3 accepted papers

2022

The Complexity of Temporal Vertex Cover in Small-Degree Graphs

AAAI 2022technical

Temporal graphs naturally model graphs whose underlying topology changes over time. Recently, the problems Temporal Vertex Cover (or TVC) and Sliding-Window Temporal Vertex Cover (or Delta-TVC for time-windows of a fixed-length Delta) have been established as natural extensions of the classic Vertex…

Cited by 22SourcePDFScholar
2021

Equitable Scheduling on a Single Machine

AAAI 2021technical

We introduce a natural but seemingly yet unstudied generalization of the problem of scheduling jobs on a single machine so as to minimize the number of tardy jobs. Our generalization lies in simultaneously considering several instances of the problem at once. In particular, we have n clients over a…

Cited by 20SourcePDFScholar
2021

Interference-free Walks in Time: Temporally Disjoint Paths

IJCAI 2021poster

We investigate the computational complexity of finding temporally disjoint paths or walks in temporal graphs. There, the edge set changes over discrete time steps and a temporal path (resp. walk) uses edges that appear at monotonically increasing time steps. Two paths (or walks) are temporally disjo…

Cited by 32SourcePDFScholar