2 documents found, page 1 of 1
Human Activity Recognition and Prediction
Jardim, David; Nunes, Luís; Dias, Miguel SalesHuman activity recognition (HAR) has become one of the most active research topics in image processing and pattern recognition (Aggarwal, J. K. and Ryoo, M. S., 2011). Detecting specific activities in a live feed or searching in video archives still relies almost completely on human resources. Detecting multiple activities in real-time video feeds is currently performed by assigning multiple analysts to simulta...
Hierarchical Reinforcement Learning: Learning Sub-goals and State-Abstraction
Jardim, David; Oliveira, Sancho; Nunes, LuísIn this paper we present a method that allows an agent to discover and create temporal abstractions autonomously. Our method is based on the concept that to reach the goal, the agent must pass through relevant states that we will interpret as subgoals. To detect useful subgoals, our method creates intersections between several paths leading to a goal. Our research focused on domains largely used in the study of...