New method uses crowdsourced feedback to help train robots

To show a simulated intelligence specialist another errand, similar to how to open a kitchen cupboard, scientists frequently use support learning — an experimentation interaction where the specialist is compensated for making moves that draw it nearer to the objective.

A human expert often needs to carefully design a reward function, an incentive mechanism that motivates the agent to explore. As the agent investigates and tries various actions, the human expert must iteratively update that reward function. This can be tedious, wasteful, and challenging to increase, particularly when the assignment is perplexing and includes many advances.

A novel reinforcement learning strategy that does not rely on a reward function that has been expertly designed has been developed by researchers from the University of Washington, MIT, and Harvard Universities. All things considered, it influences publicly supported criticism, accumulated from numerous nonexpert clients, to direct the specialist as it figures out how to arrive at its objective.