👉 The term "touchmark" is used in the field of data science and machine learning to describe a specific type of feature or variable that is used to identify patterns, trends, and relationships within large datasets. These features are often referred to as "features of interest" (FIs) or "outliers," and they can be used to extract valuable insights from the data. In the context of machine learning, touchmarks may include features such as the number of times a particular feature appears in a