Discussion of ‘Event history and topological data analysis’
本文对比了Garside等人（2021）使用的事件历史方法与标准拓扑数据分析方法，指出其局部方法的优劣，并展示了更完整使用持续景观统计量可提升性能。
Summary Garside et al. (2021) use event history methods to analyse topological data. We provide additional background on persistent homology to contrast the hazard estimators used in Garside et al. (2021) with standard approaches in topological data analysis. In particular, Garside et al.’s approach is a local method, which has advantages and disadvantages, whereas homology is global. We also provide more details on persistence landscapes and show how a more complete use of this statistic improves its performance.