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3,651 Results Found

  • Article
  • Open Access
27 Citations
10,249 Views
13 Pages

Healthcare organizations face stubborn challenges in ensuring patient safety and mitigating clinician turnover. This paper aims to advance theory and research on patient safety by elucidating how the role of psychological safety in patient safety can...

(This article belongs to the Special Issue Innovative Approaches for Safety Culture Improvement in Healthcare Systems)
  • Article
  • Open Access
6 Citations
3,552 Views
11 Pages

Large surveys indicate that many people perceive that their health behaviors (i.e., eating behaviors, physical activity, and self-care routines) and body image have changed during COVID-19; however, large individual variation exists. A person’s cogni...

(This article belongs to the Special Issue Eating Disorders and Related Research)
  • Article
  • Open Access
4 Citations
3,010 Views
12 Pages

30 October 2024

This paper provides an in-depth analysis of a novel methodology to enhance the commissioning processes of robotic production lines in the automotive sector, with a particular emphasis on the implementation of offline programming (OLP) methods. The pr...

(This article belongs to the Special Issue Integrating Robotics into High-Accuracy Industrial Operations)
  • Article
  • Open Access
10 Citations
4,478 Views
13 Pages

12 December 2019

This paper conducts a theoretical exploration of the inquiry-problem in problem-oriented pedagogies. Specifically, the article draws on a critical reflection of the addition of a global and internationalisation dimension to the problem-oriented proje...

(This article belongs to the Special Issue Problem-based Pedagogies in Higher Education)
  • Article
  • Open Access
8 Citations
2,756 Views
14 Pages

3 January 2024

Background: Variable-oriented analyses of time trends in the ease of communicating with mothers and fathers in the Swedish HBSC (Health and Behavior in School-aged Children) dataset show that communication problems with fathers, but not with mothers,...

(This article belongs to the Special Issue Parent-Child Relationships in Adolescence and Young Adulthood)
  • Article
  • Open Access
4 Citations
2,754 Views
19 Pages

Problem-Oriented Modelling for Biomedical Engineering Systems

  • Ivan Kernytskyy,
  • Larysa Hlinenko,
  • Yevheniia Yakovenko,
  • Orest Horbay and ,
  • Eugeniusz Koda,
  • Konstantin Rusakov,
  • Volodymyr Yankiv,
  • Ruslan Humenuyk,
  • Pavlo Polyansky and
  • Olga Szlachetka
  • + 7 authors+ 2 authors

25 July 2022

Technical system (TS) models are widely used for setting and solving problems for the improvement of biomedical engineering systems beyond simple parameter optimisation. They mostly focus on system elements, the change or replacement of which can pro...

  • Article
  • Open Access
738 Views
13 Pages

The λ-Fold Spectrum Problem for the Oriented Pentagons

  • Şafak Durukan-Odabaşı and
  • Uğur Odabaşı

30 October 2025

A D-decomposition of a directed graph G is a collection of arc-disjoint subgraphs of G, each isomorphic to D, such that every arc of G belongs to exactly one subgraph. The λ-fold spectrum problem for a directed graph D asks for the set of all...

(This article belongs to the Special Issue Symmetry and Graph Theory, 2nd Edition)
  • Article
  • Open Access
18 Citations
7,649 Views
21 Pages

Efficient Metaheuristics for the Mixed Team Orienteering Problem with Time Windows

  • Damianos Gavalas,
  • Charalampos Konstantopoulos,
  • Konstantinos Mastakas,
  • Grammati Pantziou and
  • Nikolaos Vathis

5 January 2016

Given a graph whose nodes and edges are associated with a profit, a visiting (or traversing) time and an admittance time window, the Mixed Team Orienteering Problem with Time Windows (MTOPTW) seeks for a specific number of walks spanning a subset of...

  • Brief Report
  • Open Access
3 Citations
2,974 Views
10 Pages

On Solving the Set Orienteering Problem

  • Roberto Montemanni and
  • Derek H. Smith

12 March 2024

In the Set Orienteering Problem, a single vehicle, leaving from and returning to a depot, has to serve some customers, each one associated with a given spacial location. Customers are grouped in clusters and a given prize is collected once a customer...

(This article belongs to the Special Issue Advanced Optimization Methods and Their Applications)
  • Article
  • Open Access
31 Citations
9,369 Views
19 Pages

22 December 2020

Innovation systems are increasingly oriented towards the solution of societal and environmental problems. Social entrepreneurship can be regarded as a market-based actor, inherently aimed at finding solutions for these problems. The development of te...

(This article belongs to the Special Issue Social Businesses and Social Entrepreneurship in the Face of Sustainable Development Challenges)
  • Article
  • Open Access
1 Citations
2,032 Views
14 Pages

18 October 2023

A D-decomposition of a graph (or digraph) G is a partition of the edge set (or arc set) of G into subsets, where each subset induces a copy of the fixed graph D. Graph decomposition finds motivation in numerous practical applications, particularly in...

(This article belongs to the Special Issue Symmetry and Graph Theory)
  • Article
  • Open Access
1,296 Views
18 Pages

24 July 2025

In our work, the Robust Multiple-robot Orienteering Problem with Workload Balancing is constructed for the first time. Our primary contribution lies in the rigorous formulation of this problem as a three-stage optimization task. It leverages the Robu...

(This article belongs to the Special Issue Embodied Intelligence and Its Application in Robotics)
  • Article
  • Open Access
17 Citations
6,571 Views
27 Pages

30 June 2018

With advances in information technology, people face the problem of dealing with tremendous amounts of information and need ways to save time and effort by summarizing the most important and relevant information. Thus, automatic text summarization ha...

  • Article
  • Open Access
1 Citations
2,756 Views
15 Pages

A Compact Model for the Clustered Orienteering Problem

  • Roberto Montemanni and
  • Derek H. Smith

Background: The Clustered Orienteering Problem is an optimization problem faced in last-mile logistics. The aim is, given an available time window, to visit vertices and to collect as much profit as possible in the given time. The vertices to visit h...

  • Article
  • Open Access
2 Citations
3,263 Views
15 Pages

Determining Reliable Solutions for the Team Orienteering Problem with Probabilistic Delays

  • Erika M. Herrera,
  • Javier Panadero,
  • Patricia Carracedo,
  • Angel A. Juan and
  • Elena Perez-Bernabeu

14 October 2022

In the team orienteering problem, a fixed fleet of vehicles departs from an origin depot towards a destination, and each vehicle has to visit nodes along its route in order to collect rewards. Typically, the maximum distance that each vehicle can cov...

  • Article
  • Open Access
3 Citations
2,709 Views
24 Pages

2 October 2024

This study addresses the set orienteering problem with mandatory visits (SOPMV), a variant of the team orienteering problem (SOP). In SOPMV, certain critical sets must be visited. The study began by formulating the mathematical model for SOPMV. To ta...

(This article belongs to the Section E2: Control Theory and Mechanics)
  • Article
  • Open Access
39 Citations
8,044 Views
30 Pages

Electric Vehicle Routing, Arc Routing, and Team Orienteering Problems in Sustainable Transportation

  • Leandro do C. Martins,
  • Rafael D. Tordecilla,
  • Juliana Castaneda,
  • Angel A. Juan and
  • Javier Faulin

19 August 2021

The increasing use of electric vehicles in road and air transportation, especially in last-mile delivery and city mobility, raises new operational challenges due to the limited capacity of electric batteries. These limitations impose additional drivi...

(This article belongs to the Special Issue Battery Management for Electric Vehicles)
  • Article
  • Open Access
5 Citations
3,486 Views
25 Pages

The Stochastic Team Orienteering Problem with Position-Dependent Rewards

  • Javier Panadero,
  • Eva Barrena,
  • Angel A. Juan and
  • David Canca

10 August 2022

In this paper, we analyze both the deterministic and stochastic versions of a team orienteering problem (TOP) in which rewards from customers are dynamic. The typical goal of the TOP is to select a set of customers to visit in order to maximize the t...

(This article belongs to the Special Issue Application of Mathematical Methods in Industrial Engineering and Management)
  • Article
  • Open Access
1 Citations
2,008 Views
19 Pages

Using Transformers and Reinforcement Learning for the Team Orienteering Problem Under Dynamic Conditions

  • Antoni Guerrero,
  • Marc Escoto,
  • Majsa Ammouriova,
  • Yangchongyi Men and
  • Angel A. Juan

20 July 2025

This paper presents a reinforcement learning (RL) approach for solving the team orienteering problem under both deterministic and dynamic travel time conditions. The proposed method builds on the transformer architecture and is trained to construct r...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Feature Paper
  • Article
  • Open Access
1,057 Views
18 Pages

23 July 2025

Inspired by real-world logistics scenarios, in this paper, we introduce a new variant of the Orienteering Problem known as the Multi-zone Orienteering Problem with Time Windows (MzOPTW). In the MzOPTW, customers are situated in distinct zones, each w...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
3 Citations
2,506 Views
15 Pages

Using Reinforcement Learning in a Dynamic Team Orienteering Problem with Electric Batteries

  • Majsa Ammouriova,
  • Antoni Guerrero,
  • Veronika Tsertsvadze,
  • Christin Schumacher and
  • Angel A. Juan

25 November 2024

This paper addresses the team orienteering problem (TOP) with vehicles equipped with electric batteries under dynamic travel conditions influenced by weather and traffic, which impact travel times between nodes and hence might have a critical effect...

(This article belongs to the Special Issue Battery Management in Electric Vehicles: Current Status and Future Trends: 2nd Edition)
  • Article
  • Open Access
9 Citations
5,335 Views
17 Pages

24 December 2019

This paper explores how Problem-oriented Project Learning (PPL) can be organized in a context that meets the pedagogical needs of first year students. Under the assumption that, while PPL provides a fruitful context for learning, it is also challengi...

(This article belongs to the Special Issue Problem-based Pedagogies in Higher Education)
  • Article
  • Open Access
8 Citations
3,932 Views
19 Pages

A Sim-Learnheuristic for the Team Orienteering Problem: Applications to Unmanned Aerial Vehicles

  • Mohammad Peyman,
  • Xabier A. Martin,
  • Javier Panadero and
  • Angel A. Juan

8 May 2024

In this paper, we introduce a novel sim-learnheuristic method designed to address the team orienteering problem (TOP) with a particular focus on its application in the context of unmanned aerial vehicles (UAVs). Unlike most prior research, which prim...

(This article belongs to the Special Issue Heuristic Optimization Algorithms for Logistics)
  • Article
  • Open Access
13 Citations
5,126 Views
21 Pages

24 February 2017

Container terminals (CTs) play an essential role in the global transportation system. To deal with growing container shipments, a CT needs to better solve the three essential seaside operational problems; berth allocation problem (BAP), quay crane as...

(This article belongs to the Special Issue Modeling, Simulation, Operation and Control of Discrete Event Systems)
  • Feature Paper
  • Article
  • Open Access
3 Citations
8,937 Views
31 Pages

16 August 2019

In this paper, we experimentally evaluate the performance of a sensor concept for solving the direct kinematics problem of a general planar 3-RPR parallel mechanism by using solely the linear actuators’ orientations. At first, we review classic...

(This article belongs to the Special Issue Kinematics and Robot Design II, KaRD2019)
  • Article
  • Open Access
6 Citations
3,283 Views
36 Pages

The assessment of mathematical competence, particularly in real-world problem-solving contexts, has become increasingly crucial in high school educational evaluation. While traditional methods have shifted towards emphasizing problem-solving skills,...

  • Article
  • Open Access
12 Citations
8,277 Views
16 Pages

The Non-Smooth and Bi-Objective Team Orienteering Problem with Soft Constraints

  • Alejandro Estrada-Moreno,
  • Albert Ferrer,
  • Angel A. Juan,
  • Javier Panadero and
  • Adil Bagirov

1 September 2020

In the classical team orienteering problem (TOP), a fixed fleet of vehicles is employed, each of them with a limited driving range. The manager has to decide about the subset of customers to visit, as well as the visiting order (routes). Each custome...

(This article belongs to the Special Issue Multi-Criteria Optimization Models and Applications)
  • Article
  • Open Access
3 Citations
2,793 Views
19 Pages

A Learnheuristic Algorithm Based on Thompson Sampling for the Heterogeneous and Dynamic Team Orienteering Problem

  • Antonio R. Uguina,
  • Juan F. Gomez,
  • Javier Panadero,
  • Anna Martínez-Gavara and
  • Angel A. Juan

5 June 2024

The team orienteering problem (TOP) is a well-studied optimization challenge in the field of Operations Research, where multiple vehicles aim to maximize the total collected rewards within a given time limit by visiting a subset of nodes in a network...

(This article belongs to the Special Issue Metaheuristic Algorithms, 2nd Edition)
  • Article
  • Open Access
12 Citations
3,714 Views
18 Pages

Combining Parallel Computing and Biased Randomization for Solving the Team Orienteering Problem in Real-Time

  • Javier Panadero,
  • Majsa Ammouriova,
  • Angel A. Juan,
  • Alba Agustin and ,
  • Maria Nogal and
  • Carles Serrat
  • + 1 author+ 0 author

19 December 2021

In smart cities, unmanned aerial vehicles and self-driving vehicles are gaining increased concern. These vehicles might utilize ultra-reliable telecommunication systems, Internet-based technologies, and navigation satellite services to locate their c...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
12 Citations
3,860 Views
21 Pages

IoT Analytics and Agile Optimization for Solving Dynamic Team Orienteering Problems with Mandatory Visits

  • Yuda Li,
  • Mohammad Peyman,
  • Javier Panadero,
  • Angel A. Juan and
  • Fatos Xhafa

18 March 2022

Transport activities and citizen mobility have a deep impact on enlarged smart cities. By analyzing Big Data streams generated through Internet of Things (IoT) devices, this paper aims to show the efficiency of using IoT analytics, as an agile optimi...

(This article belongs to the Section E1: Mathematics and Computer Science)
  • Feature Paper
  • Article
  • Open Access
325 Views
15 Pages

23 September 2026

This work proposes a matheuristic approach that combines heuristic techniques with mathematical optimization to address a bi-objective, multi-source team orienteering problem. During the exploration phase, nodes are assigned to depots using a biased-...

(This article belongs to the Topic Decision Science Applications and Models (DSAM))
  • Article
  • Open Access
6 Citations
2,959 Views
23 Pages

Problem-Oriented Learning as a Method of Developing Soft Skills Among Students of Pedagogical Specialties

  • Perizat Sanatbay,
  • Guldana Smailova,
  • Kadisha Shalgynbayeva,
  • Marziya Asilbekova and
  • Anar Tauekelova

In the context of the transformation of the modern higher education system, the supra-professional competencies (soft skills) necessary for future specialists in the humanitarian field, in particular, social educators, are of particular importance. T...

  • Article
  • Open Access
2 Citations
2,166 Views
18 Pages

25 May 2025

This paper addresses the team orienteering problem applied to unmanned aerial vehicles (UAVs), considering obstacle avoidance and environmental factors such as wind conditions and payload weight. The objective is to optimize UAV routes to maximize co...

(This article belongs to the Section Algorithms for Multidisciplinary Applications)
  • Article
  • Open Access
8 Citations
3,684 Views
16 Pages

Using Reinforcement Learning to Solve a Dynamic Orienteering Problem with Random Rewards Affected by the Battery Status

  • Angel A. Juan,
  • Carolina A. Marugan,
  • Yusef Ahsini,
  • Rafael Fornes and ,
  • Javier Panadero and
  • Xabier A. Martin
  • + 1 author+ 0 author

This paper discusses an orienteering optimization problem where a vehicle using electric batteries must travel from an origin depot to a destination depot while maximizing the total reward collected along its route. The vehicle must cross several con...

(This article belongs to the Special Issue Battery Management in Electric Vehicles: Current Status and Future Trends)
  • Article
  • Open Access
15 Citations
3,927 Views
16 Pages

28 September 2021

In this paper we propose an efficient closed form solution to the absolute orientation problem for cameras with an unknown focal length, from two 2D–3D point correspondences and the camera position. The problem can be decomposed into two simple sub-p...

(This article belongs to the Special Issue 3D Object and Scene Detection, Reconstruction, Segmentation Based on Advanced Sensing Technology)
  • Article
  • Open Access
4 Citations
2,513 Views
14 Pages

Cooperative problem solving (CPS) is an essential ability in people’s daily life. When individuals with different problem-solvers’ characteristics (orientation and style) are assigned to different group sizes to solve social tasks, what a...

(This article belongs to the Section Adolescents)
  • Article
  • Open Access
1 Citations
1,096 Views
33 Pages

Higher education is undergoing a rapid transformation driven by advancements in artificial intelligence (AI), creating new opportunities to support the development of higher-order cognitive skills through carefully designed learning environments. Thi...

  • Article
  • Open Access
2 Citations
6,092 Views
10 Pages

The present article focuses on how ‘sexual orientation’ is represented and produced in a Swedish preschool policy document regarding discrimination and equal treatment. ‘Poststuctural policy analysis’ is employed, in line with Foucault) and Bacchi. T...

(This article belongs to the Special Issue Reimagining ‘Childhood, Motherhood, Family and Community’)
  • Article
  • Open Access
16 Citations
4,572 Views
18 Pages

A Heuristic-Based Simulation for an Education Process to Learn about Optimization Applications in Logistics and Transportation

  • Majsa Ammouriova,
  • Massimo Bertolini,
  • Juliana Castaneda,
  • Angel A. Juan and
  • Mattia Neroni

5 March 2022

In the context of the DigiLab4U international project, this paper describes a simulation-based serious game that can be used as a virtual teaching lab in higher education courses, especially in Industrial and Systems Engineering, Data Science, Manage...

(This article belongs to the Special Issue Business Games and Numeric Simulations in Economics and Management)
  • Article
  • Open Access
1 Citations
2,685 Views
11 Pages

22 March 2024

Objective: This study sought to examine whether the sense of coherence (SoC) and resilience among female fibromyalgia (FM) patients increased after participation in a fibrotherapy intervention program (FTI) and whether SoC and resilience increased am...

  • Article
  • Open Access
6 Citations
2,334 Views
24 Pages

Solution to the Inverse Problem of the Angular Manipulator Kinematics with Six Degrees of Freedom

  • Yurii Andrieiev,
  • Dmytro Breslavsky,
  • Hennadii Shabanov,
  • Konstantin Naumenko and
  • Holm Altenbach

6 March 2025

New analytical solutions for the inverse kinematics problem of a 6R manipulator are proposed. Based on the assumption that the rotation axes of the last three links intersect at a common point, the problem is divided into orientation and transition p...

  • Article
  • Open Access
3,314 Views
13 Pages

Formation of Infrastructure Provision for Personnel Needs in Gas and Petrochemical Cluster: The Case of Iran

  • Sara Mehrab Daniali,
  • Farzin Mohammadbeigi Khortabi,
  • Sergey Evgenievich Barykin,
  • Irina Vasilievna Kapustina and ,
  • Anna Burova,
  • Natalya Ostrovskaya,
  • Anton Lisin and
  • Tatiana Gennadievna Shulzhenko
  • + 3 authors+ 0 author

The problem of staffing the gas and petrochemical cluster is acutely raised in all oil-producing states. This article’s purpose is to study program-targeted and problem-oriented approaches to forming infrastructure provision for personnel needs...

(This article belongs to the Special Issue Emerging Economies and Sustainable Growth)
  • Article
  • Open Access
5 Citations
2,419 Views
19 Pages

5 August 2022

One of the key tools in an organization’s performance management is the goal tree, which is used for solving both direct and inverse problems. This research deals with goal setting based on a model of the future by presenting the goal and subgo...

(This article belongs to the Special Issue Mathematical Methods and Analysis for the Industrial Management and Business, 2nd Edition)
  • Article
  • Open Access
1 Citations
5,239 Views
22 Pages

30 April 2020

We consider initial value problems (IVPs) where we are interested in a quantity of interest (QoI) that is the integral in time of a functional of the solution. For these, we analyze goal oriented time adaptive methods that use only local error estima...

  • Article
  • Open Access
6 Citations
4,620 Views
16 Pages

19 August 2022

Absolute orientation estimation is one of the key steps in computer vision, and n 2D–3D point correspondences can be used to obtain the absolute orientation, which is known as the perspective-n-point problem (PnP). The lowest number of point co...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
65 Citations
10,264 Views
14 Pages

13 June 2013

Education for sustainability (EfS) poses new challenges to higher education as it necessitates various shifts: from teacher- to learner-centered pedagogies, from input- to output-orientation and from a focus on content to problem-solving and process...

(This article belongs to the Special Issue Pedagogy for Education for Sustainability (EfS) in Higher Education (HE))
  • Article
  • Open Access
3 Citations
2,713 Views
15 Pages

20 February 2024

Ecotourism routes serve as powerful tools for fostering environmental awareness. To achieve this, it is crucial to design itineraries within natural parks that strike a balance between visitor experience and ecological preservation. Limiting the dura...

(This article belongs to the Section E: Applied Mathematics)
  • Article
  • Open Access
22 Citations
13,526 Views
13 Pages

Emotional intelligence (EI), problem-oriented coping, and resilience have been deeply studied as psychological predictors of wellbeing in stressful daily situations. The aim was to find out whether coping, EI, and resilience are predictors of well-be...

(This article belongs to the Section Mental Health)
  • Article
  • Open Access
5 Citations
7,480 Views
18 Pages

Absolute Orientation Based on Distance Kernel Functions

  • Yanbiao Sun,
  • Liang Zhao,
  • Guoqing Zhou and
  • Lei Yan

5 March 2016

The classical absolute orientation method is capable of transforming tie points (TPs) from a local coordinate system to a global (geodetic) coordinate system. The method is based only on a unique set of similarity transformation parameters estimated...

  • Article
  • Open Access
1 Citations
7,004 Views
21 Pages

29 November 2019

In this paper, we investigate the accuracy and the computational efficiency of an IMU-based approach for solving the direct kinematics problem of parallel mechanisms with length-variable linear actuators under dynamic conditions. By avoiding to measu...

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