4 papers
Faster Fréchet Distance under Transformations
Kevin Buchin, Maike Buchin, Zijin Huang +2
We study the problem of computing the Fréchet distance between two polygonal curves under transformations. First, we consider translations in the Euclidean plane. Given two curves…
Spanner for the weighted region problem
Joachim Gudmundsson, Zijin Huang, André van Renssen +1
We consider the problem of computing an approximate weighted shortest path in a weighted subdivision, with weights assigned from the set . We present a data struc…
Computing a Subtrajectory Cluster from c-packed Trajectories
Joachim Gudmundsson, Zijin Huang, André van Renssen +1
We present a near-linear time approximation algorithm for the subtrajectory cluster problem of -packed trajectories. The problem involves finding subtrajectories within a gi…
Approximating the lambda-low-density value
Joachim Gudmundsson, Zijin Huang, Sampson Wong
The use of realistic input models has gained popularity in the theory community. Assuming a realistic input model often precludes complicated hypothetical inputs, and the analysis…