Etsy Engineering | Conjecture: Scalable Machine Learning in Hadoop with ScaldingIntro Predictive machine learning models are an important tool for many aspects of e-commerce. At Etsy, we use machine learning as a component in a diverse set of critical tasks. For instance, we use predictive machine learning models to estimate click rates of items so that we can present high quality and relevant items to potential buyers on the site. This estimation is particularly important
