Multimodal Dataset of Human-Robot Hugging Interaction
This dataset addresses the need for trust-building in human-robot collaboration, though it is incremental as it focuses on a specific interaction type.
The authors tackled the scarcity of high-quality datasets for human-robot interaction by collecting a multimodal dataset of 353 hugging episodes between 33 people and a Baxter humanoid robot, aiming to enable robots to learn and anticipate human movements during hugs.
A hug is a tight embrace and an expression of warmth, sympathy and camaraderie. Despite the fact that a hug often only takes a few seconds, it is filled with details and nuances and is a highly complex process of coordination between two agents. For human-robot collaborative tasks, it is necessary for humans to develop trust and see the robot as a partner to perform a given task together. Datasets representing agent-agent interaction are scarce and, if available, of limited quality. To study the underlying phenomena and variations in a hug between a person and a robot, we deployed Baxter humanoid robot and wearable sensors on persons to record 353 episodes of hugging activity. 33 people were given minimal instructions to hug the humanoid robot for as natural hugging interaction as possible. In the paper, we present our methodology and analysis of the collected dataset. The use of this dataset is to implement machine learning methods for the humanoid robot to learn to anticipate and react to the movements of a person approaching for a hug. In this regard, we show the significance of the dataset by highlighting certain features in our dataset.