Fig. 1: Mutual information between O*NET tasks and skills.
From: Developing China’s workforce skill taxonomy reveals extent of labor market polarization

a The heat map is drawn based on the mutual information of the task-skill pairs, showing the heterogenous structure of the task-skill relationships. b Task clouds of three skills: Medicine and Dentistry, Communicating with Persons Outside Organization and Installation. The word size is proportional to the value of the mutual information criterion.