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The ARIEL mission main goal is the measurement of atmospheres of transiting planets. This requires the observation of two types of events: primary and secondary eclipses. In order to yield measurements of sufficient Signal-to-Noise Ratio to fulfill the mission objectives, the events of each exoplanet have to be observed several times. In addition, several criteria have to be considered to carry out...
this paper addresses the joint quay crane and yard selection problem at a container terminal. We consider the work capacity of the quay cranes and the storage capacity of yard blocks. For the bidirectional flow problem with both inbound and outbound containers, a mixed-integer linear programming model under determination is formulated to minimize the make-span and the traveling time of truck by using...
In the last decades power systems witnessed the implementation of an organizational and operational restructuring that lead to the introduction of competitive mechanisms in some activities of the value chain. This is the case of generation and retailing with the development of wholesale and retail markets. These developments together with a renewed emphasis on the adoption of more sustainable solutions...
It has been demonstrated that plants operating with a high level of equipment reliability have not only lower maintenance costs but also better performance in most other areas, such as plant cleanliness, safety, and productivity. The companies and plants that embrace maintenance excellence hold a sustainable competitive advantage. Yet many cement companies and plants do not yet embrace the concept...
Flexible Manufacturing systems (FMS) are the systems possessing high complexity in design and operation. It is due to the fact that the FMS consists of machines with high flexibility that can process a variety of jobs in a number of machines. Basically, such systems are used for the batch production process. In aerospace industries where a batch production process is adopted, FMS has found a wide...
Timeline visualization is one of the most important features of the scheduling platform of space missions. This paper proposes a visualization framework that supports various time-dependent data categories. To adapt variable data sources and viewing requirements, a data-method separation mechanism is designed, providing optional drawing methods and visual templates for corresponding data. The drag-and-drop...
Inefficiency airport ground handing operations is one of the main reasons for flight delays, as it comprises a series of processes and collaborations between various airport's services. Using multi-agent planning (MAP) method, this paper proposes a framework as a management system to improve the airport ground handling management (GHM). With the identification of the services and resources related...
This paper considers the operation scheduling and planning of elective patients in the Orthopedic Department of the “Lozano Blesa” Hospital in Zaragoza. We assume an ordered list of patients that should be planned for surgery in two available rooms, each room being possible to be used for a specific duration per day. Based on the average durations of surgeries that have been computed by considering...
Real-time strategy (RTS) games hold many challenges in the creation of a game AI. One of those challenges is creating an effective plan for a given context. Competitive game AIs have struggled to adapt and create good plans to counter the opponent strategy. In this paper, a new scheduling model is proposed regarding planning problems on RTS games. This problem consists of solving a multi-objective...
The Software project planning is one of the main problems that project managers are confronted as is the allocation of human resources to the activities to be performed to carry out a project. The purpose of this paper is to give an automated approach to help in this difficult task to minimize cost and total duration of the project. To achieve this, we propose to use the recent algorithm called Intelligent...
This paper presents a mixed integer linear programming (MILP) model for the daily planning of home health care (HHC) services provided by the crew of HHC firms. The model takes into account the time window of patients, compatibility requirements, workload limits of staff and distance of patients. The quantitative values of these parameters along with the similarity or difference within the values...
Railway infrastructure maintenance is of fundamental importance in order to ensure a good service in terms of punctuality, safety and efficiently operation of trains on railway track and also for passenger comfort. Track maintenance covers a large amount of different activities such as inspections, repairs, replacement of failed components or modules and renewals. In this paper, we address the problem...
The multi-agent approach and technology for distributed scheduling, coordination and control of several UAV in group in order to perform joint tasks in real time was considered. The network-centric multi-agent system for real-time task scheduling for UAV's group was proposed. Two part of sheduling initial scheduling and dynamic rescheduling (task redistributed) were considered. For real-time task...
We investigate the use of optimization-based techniques to model and solve two real-world single robot task planning problems. In the first problem, a robot must plan a set of tasks, each with different temporal constraints. In the second problem, a socially interacting robot must plan a set of tasks while considering the schedules of multiple human users, as well as physical constraints including...
Resources production in RTS games is an area that presents many challenges such as constraint satisfaction, action scheduling and resource management. Despite these challenges, we must consider which resources should be used in a production, since the resources produced characterize a goal that is achieved within the game. There are few studies that consider the choice of the most appropriate resources...
Nowadays, Scheduling is a basic activity in large scale systems which have unexpected and more complexity demands. Instances of these complex systems can be found in manufacturing, logistics, economics, traffic control and biology such as social insects and immune systems. Number of entities and their interconnections are the reasons that steer researchers to find a solution, which is not based on...
In this publication a two-step approach for resourceoptimal sensor scheduling in intelligence is presented. This approach has been developed in close cooperation with subjectmatter experts from the Intelligence, Surveillance, and Reconnaissance (ISR) domain. It constitutes the fundamental basis of a computer-aided assistance system for ISR management personal.
As a solution proposal for the Second International Nurse Rostering Competition (INRC-II) [1], we introduce in this paper an approach based on the weighted constraint satisfaction problem (WCSP). The WCSP, given a number of constraints (both hard constraints - ones that must not be violated, and soft constraints - ones that influence the degree of optimality of a possible solution) aims to minimize...
In this survey the state-of-the-art technology and the literature to date are discussed. In particular, we will discuss the gap in the literature concerning rostering staff to tasks by qualifications, with the inclusion of restrictions on a measure of task familiarity, which is a unique consequence of the structure of ATC operations.
A common problem that distribution utilities grapple with is planning crew levels on a day-to-day basis, especially in the face of large weather events, while accounting for complex business constraints. This paper proposes a method for optimally planning hourly crew staffing levels across different organizations (service centers, local contractors, mutual aid crews) and different crew types. The...
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