Models for bankruptcy prediction are useful in several real-world scenarios, and multiple research contributions have been devoted to the task, based on structured (numerical) as well as unstructured (textual) data. However, the lack of a common benchmark dataset and evaluation strategy impedes the objective comparison between models. This paper introduces such a benchmark for the unstructured data scenario, based on novel and established datasets, in order to stimulate further research into the task. We describe and evaluate several classical and neural baseline models, and discuss benefits and flaws of different strategies. In particular, we find that a lightweight bag-of-words model based on static in-domain word representations obtains surprisingly good results, especially when taking textual data from several years into account. These results are critically assessed, and discussed in light of particular aspects of the data and the task. All code to replicate the data and experimental results will be released.
翻译:破产预测模型在若干现实世界情景中有用,基于结构化(数字)和无结构化(文字)数据,对这项任务作出了多项研究贡献,然而,由于缺乏共同的基准数据集和评价战略,妨碍了模型之间的客观比较。本文根据新的和既定的数据集,为无结构化数据假设提出了这样一个基准,以激励对任务进行进一步研究。我们描述和评价了若干古典和神经基线模型,并讨论了不同战略的利弊。特别是,我们发现,基于静态主言表达的轻量级词组模型取得了令人惊讶的好结果,特别是在考虑到几年的文字数据时。这些结果经过严格评估,并根据数据和任务的某些特定方面进行了讨论。所有复制数据和实验结果的代码都将发布。