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The ROBOCARE project is aimed at creating an instance of integrated environment with software and robotic agents to actively assist an elderly person at home. In particular the project has synthesized a proactive environment for continuous daily activity monitoring in which an autonomous robot acts as a main interactor with the person. This paper accounts(More)
This article reports the state of advancement of the RoboCare project, which was launched in December 2002 to address the problem of providing assistance to elderly people using a combination of software, robots, intelligent sensors and humans. It addresses the creation of a multi-agent environment in which all these actors cooperate synergistically in(More)
This article describes aspects of a fully implemented artificial intelligence (AI) system that integrates multiple intelligent components to actively assist an elderly person at home. Specifically, we describe how constraint-based scheduling technology is used to actively monitor a pattern of activities executed by the person and how detected temporal(More)
This paper presents a meta-heuristic algorithm for solving the Flexible Job Shop Scheduling Problem (FJSSP). This strategy, known as Iterative Flattening Search (IFS), iteratively applies a relaxation-step, in which a subset of scheduling decisions are randomly retracted from the current solution; and a solving-step, in which a new solution is(More)
In this work we design a benchmark generator for the reactive scheduling problem. This problem consists in monitoring the execution of a schedule and repairing it every time it is deemed necessary. The main motivations behind this work grow out either from the recognized lack (hence the necessity) of benchmark sets for this specific problem as well as from(More)
This paper investigates a loosely coupled approach to planning and scheduling integration, which consists of cascading a planner and a scheduler. While other implementations of this framework have already been reported, our work aims at analyzing the structural properties of the scheduling problem which results from the planning component, focusing on the(More)