Machine Learning in Java - Second Edition

Data and problem definition

When presented with a problem definition, we need to ask questions that will help in understanding the objective and target information from the data. We could ask very common questions, such as: what is the expected finding once the data is explored? What kind of information can be extracted after data exploration? Or, what kind of format is required so the question can be answered? Asking the right question will give a clearer understanding of how to proceed further. Data is simply a collection of measurements in the form of numbers, words, observations, descriptions of things, images, and more.