Graph-Powered Machine Learning

Part 2 Recommendations

Representation is one of the most complex and compelling tasks in machine learning and computer science in general. Pedro Domingos, a computer science professor at the University of Washington, published an article [Domingos, 2012] in which he decomposed machine learning into three main components: representation, evaluation, and optimization. Representation specifically affects three core aspects of a machine learning project’s life cycle:

• The formal language (or schema) in which a training dataset is expressed before it is passed as input to the learning process

• The way in which the result of the learning process—the predictive model—is stored

• How, during the prediction phase, the training data and the prediction ...