Methods to quantify the complexity of trajectory datasets are still a missing piece in benchmarking human trajectory prediction models. In order to gain a better understanding of the complexity of trajectory prediction tasks and following the intuition, that more complex datasets contain more information, an approach for quantifying the amount of information contained in a dataset from a prototype-based dataset representation is proposed. The dataset representation is obtained by first employing a non-trivial spatial sequence alignment, which enables a subsequent learning vector quantization (LVQ) stage. A large-scale complexity analysis is conducted on several human trajectory prediction benchmarking datasets, followed by a brief discussion on indications for human trajectory prediction and benchmarking.
@article{arxiv.2005.13934,
title = {Quantifying the Complexity of Standard Benchmarking Datasets for Long-Term Human Trajectory Prediction},
author = {Ronny Hug and Stefan Becker and Wolfgang Hübner and Michael Arens},
journal= {arXiv preprint arXiv:2005.13934},
year = {2021}
}