Machine learning techniques are effective for building predictive models because they are good at identifying patterns in large datasets. Development of a model for complex real life problems often stops at the point of publication, proof of concept or when made accessible through some mode of deployment. However, a model in the medical domain risks becoming obsolete as soon as patient demographic changes. The maintenance and monitoring of predictive models post-publication is crucial to guarantee their safe and effective long term use. As machine learning techniques are effectively trained to look for patterns in available datasets, the performance of a model for complex real life problems will not peak and remain fixed at the point of publication or even point of deployment. Rather, data changes over time, and they also changed when models are transported to new places to be used by new demography.
翻译:机器学习技术因其在大型数据集中识别模式的能力而有效,可以用于构建预测模型。对于复杂的实际问题,模型的开发往往在出版、概念证明或通过某种部署方式使其可供使用的时候停止。然而,在医学领域,模型面临的挑战在于随着患者人口结构的变化,模型很容易过时。发布后对预测模型的维护和监控对于确保其长期安全有效的使用至关重要。由于机器学习技术的有效训练是在当前可用数据集上寻找模式,因此用于解决实际问题的模型的性能不会在出版或部署时达到峰值并保持不变,而是会随着时间和使用的改变而发生变化,尤其是面对着不同的人口。