Addressing Overfitting on Pointcloud Classification using Atrous XCRF
Abstract
Advances in techniques for automated classification of pointcloud data introduce great opportunities for many new and existing applications. However, with a limited number of labeled points, automated classification by a machine learning model is prone to overfitting and poor generalization. The present paper addresses this problem by inducing controlled noise (on a trained model) generated by invoking conditional random field similarity penalties using nearby features. The method is called Atrous XCRF and works by forcing a trained model to respect the similarity penalties provided by unlabeled data. In a benchmark study carried out using the ISPRS 3D labeling dataset, our technique achieves 84.97% in term of overall accuracy, and 71.05% in term of F1 score. The result is on par with the current best model for the benchmark dataset and has the highest value in term of F1 score.
Cite
@article{arxiv.1902.03088,
title = {Addressing Overfitting on Pointcloud Classification using Atrous XCRF},
author = {Hasan Asyari Arief and Ulf Geir Indahl and Geir-Harald Strand and Håvard Tveite},
journal= {arXiv preprint arXiv:1902.03088},
year = {2019}
}