Quantified learning is a new way of learning dependent on data cognition which aims to provide personalized learning service. Quantified learning process is a closed loop system with adaptive feedback, which is composed of data, learners, stakeholders and learning services. The deep integration of information technology and education, the progress of technology and the development of industry, and the innovation of educational teaching theory, have driven the development of quantified learning. Quantified learning is valuable to construct a new education pattern for the time demands, to form s...