Awareness-Based Recommendation
This chapter describes the interactive learning system to assist positive change in the preference of a human toward the true preference. First, an introduction to interactive reinforcement learning with human in robot learning is given; then, the need to estimate the human’s preference and to consider its changes by interactive learning system is described. Second, requirements for interactive system as being human adaptive and friendly are discussed. Then, the passive interaction design of the system to assist the awareness for a human is proposed. The system behaves passively to reflect the human intelligence by visualizing the traces of his/her behaviors. Experimental results show that subjects are divided into two groups, heavy users and light users, and that there are different effects between them under the same visualizing condition. They also show that the system improves the efficiency for deciding the most preferred plan for both heavy users and light users.