Prior studies have found that providing explanations about robots' decisions and actions help to improve system transparency, increase human users' trust of robots, and enable effective human-robot collaboration. Different users have various preferences about what should be included in explanations. However, little research has been conducted for the generation of personalized explanations. In this paper, we present a system for generating personalized explanations of robotic planning via user feedback. We consider robotic planning using Markov decision processes (MDPs) and develop an algorithm to automatically generate a personalized explanation of an optimal robotic plan (i.e., an optimal MDP policy) based on the user preference regarding four elements (i.e., objective, locality, specificity, and abstraction). In addition, we design the system to interact with users via answering users' further questions about the generated explanations. Users have the option to update their preferences to view different explanations. The system is capable of detecting and resolving any preference conflict via user interaction. Our user study results show that the generated personalized explanations improve user satisfaction, while the majority of users liked the system's capabilities of question-answering, and conflict detection and resolution.

When it absolutely, positively has to be there overnight, your FedEx package might someday be delivered by a robot. Rob Carter, FedEx's chief information officer, says the shipping giant is considering small vehicles that could drive around neighborhoods and make deliveries without human drivers. Carter is responsible for setting the technology agenda across FedEx's various operating companies, including its planes-and-trucks Express shipping service and office-and-home Ground delivery service, which operate in 220 countries. He recently told MIT Technology Review about some of FedEx's emerging technology initiatives in artificial intelligence and robotics. The investments FedEx makes in these technologies could shape the multi-trillion-dollar logistics market, affecting everything from the way people send and receive parcels to the global movement of large fleets of vehicles.

When it absolutely, positively has to be there overnight, your FedEx package might someday be delivered by a robot. Rob Carter, FedEx's chief information officer, says the shipping giant is considering small vehicles that could drive around neighborhoods and make deliveries without human drivers. Carter is responsible for setting the technology agenda across FedEx's various operating companies, including its planes-and-trucks Express shipping service and office-and-home Ground delivery service, which operate in 220 countries. He recently told MIT Technology Review about some of FedEx's emerging technology initiatives in artificial intelligence and robotics. The investments FedEx makes in these technologies could shape the multi-trillion-dollar logistics market, affecting everything from the way people send and receive parcels to the global movement of large fleets of vehicles.