Article
Computer Science, Artificial Intelligence
Selami Somar, Burak Urazel, Yeliz Buruk Sahin
Summary: Home Health Care (HHC) services have emerged to provide care to patients who cannot be treated in the hospital. By considering travel balancing and transportation constraints, high-quality and cost-effective services can be provided. The study shows that the care and treatment processes provided by HHC services can be less expensive and equally effective compared to hospital or skilled care facility care.
APPLIED SOFT COMPUTING
(2023)
Article
Computer Science, Interdisciplinary Applications
Dian Nuraiman, Melih Ozlen
Summary: This study focuses on a home health care routing and scheduling problem with time-based priorities and the option of not visiting all patients. The authors propose a new spatial-temporal decomposition with patient filtering approach to solve this problem, which provides high-quality solutions in computational tests.
COMPUTERS & INDUSTRIAL ENGINEERING
(2022)
Article
Computer Science, Information Systems
Yongliang Lu, Una Benlic, Qinghua Wu
Summary: The Set Orienteering Problem (SOP) is a variant of the popular Orienteering Problem (OP) that aims to find a tour and maximize profit within a given time limit. A highly effective hybrid evolutionary algorithm is proposed to solve this NP-hard problem, and extensive experiments show its superiority over existing approaches.
INFORMATION SCIENCES
(2024)
Article
Computer Science, Artificial Intelligence
Sina Shahnejat-Bushehri, Reza Tavakkoli-Moghaddam, Mehdi Boronoos, Ahmad Ghasemkhani
Summary: This paper introduces a robust optimization model for home health care routing-scheduling problem with uncertain service and travel times, utilizing three meta-heuristic algorithms to solve the issue. Experimental results indicate that the memetic algorithm performs better for large-sized problems, demonstrating the advantage of using a robust model.
EXPERT SYSTEMS WITH APPLICATIONS
(2021)
Article
Automation & Control Systems
Bruno Vieira, Jesica de Armas, Helena Ramalhinho
Summary: With the increase in longevity, there is a growing elderly population in need of home health and social care. However, planning and synchronizing these services is a complex task, requiring consideration of various factors and objectives. To address this, automated planning systems have been developed to optimize routing and scheduling decisions for efficient and effective solutions.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2022)
Article
Mathematics
Javier Panadero, Eva Barrena, Angel A. Juan, David Canca
Summary: This paper analyzes the deterministic and stochastic versions of the team orienteering problem (TOP) with dynamic rewards. Two mixed-integer programming models and a biased-randomized iterated local search algorithm are proposed to solve the deterministic version, while a simheuristic algorithm is developed for the stochastic version. Numerical experiments demonstrate that the solutions provided by the simheuristic algorithm outperform the near-optimal solutions obtained for the deterministic version under uncertainty conditions, with higher reliability level.
Article
Mathematics
Erika M. Herrera, Javier Panadero, Patricia Carracedo, Angel A. Juan, Elena Perez-Bernabeu
Summary: The team orienteering problem involves vehicles visiting nodes to collect rewards within a limited distance or time constraint. This paper analyzes a stochastic version of the problem where random delays are considered, and proposes an extended simheuristic algorithm that incorporates reliability analysis to generate solutions with high expected reward and reliability.
Article
Computer Science, Interdisciplinary Applications
Enrico Angelelli, Claudia Archetti, Carlo Filippi, Michele Vindigni
Summary: The study focuses on an online version of the orienteering problem, formulating it as a Markov Decision Process and testing various heuristic approaches. Extensive computational tests are conducted to discuss the pros and cons of the different methods.
COMPUTERS & OPERATIONS RESEARCH
(2021)
Article
Computer Science, Interdisciplinary Applications
Olavo Alves Diogo, Eduardo Raupp de Vargas, Peter Fernandes Wanke, Abdollah Hadi-Vencheh
Summary: This study aims to propose a new methodology for exploring a research field and finding mathematical models to solve the problem of territorial alignment in health services. The methodology combines social network analysis, longitudinal analysis, and mapping change analysis. By applying the mapping change method to small and medium networks and using Tabu search, significant changes in keyword networks over time are highlighted using an alluvial diagram.
COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
(2021)
Article
Computer Science, Interdisciplinary Applications
Mohammed Bazirha, Rachid Benmansour, Abdeslam Kadrani
Summary: This paper proposes a new mixed integer linear programming (MILP) model to solve the home health care routing and scheduling problem (HHCRSP) with consideration of various factors. The paper also presents a two-phase approach which includes a simulated annealing (SA) based heuristic and a time window selection and synchronization process. The computational results show that the proposed approach outperforms existing methods in terms of both solution quality and computational time.
COMPUTERS & INDUSTRIAL ENGINEERING
(2023)
Article
Management
Qinghua Wu, Mu He, Jin-Kao Hao, Yongliang Lu
Summary: This paper studies a variant of the orienteering problem known as the clustered orienteering problem. In this problem, customers are grouped into clusters and a profit is associated with each cluster, collected only when all customers in the cluster are served. The proposed evolutionary algorithm, incorporating a backbone-based crossover operator and a destroy-and-repair mutation operator, outperforms existing algorithms on benchmark instances and sets new records on some instances. It also demonstrates scalability on large instances and has shown superiority over three state-of-the-art COP algorithms. The algorithm is also successfully applied to a dynamic version of the COP considering stochastic travel time.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Computer Science, Interdisciplinary Applications
Mehmet Erdem, Cagri Koc, Eda Yucel
Summary: This paper presents an electric home health care routing and scheduling problem, aiming to minimize the total cost while providing services to patients. By developing an adaptive large neighborhood search heuristic and tailoring it to the specific features of the problem, the paper achieves highly efficient solutions. The study quantifies the advantages of considering different charger technologies and shows that downgrading job competence levels can improve the total cost.
COMPUTERS & INDUSTRIAL ENGINEERING
(2022)
Article
Operations Research & Management Science
Roberto Aringhieri, Sara Bigharaz, Alessandro Druetto, Davide Duma, Andrea Grosso, Alberto Guastalla
Summary: This paper introduces a new optimization problem called the Daily Swab Test Collection (DSTC) problem, which aims to address the logistics challenge in digital contact tracing (DCT). The main finding is that it is possible to optimize the logistics system to ensure timely testing for individuals identified by the DCT.
ANNALS OF OPERATIONS RESEARCH
(2022)
Article
Operations Research & Management Science
Mohammed Bazirha, Abdeslam Kadrani, Rachid Benmansour
Summary: Home health care provides a range of medical services for patients at home. This study presents a stochastic programming model with recourse to address the uncertainties and synchronization of services. The objective is to minimize costs and expected values. The deterministic model is solved using various algorithms, while the SPR model is solved using Monte Carlo simulation. Results highlight the complexity of the SPR model compared to the deterministic model.
ANNALS OF OPERATIONS RESEARCH
(2023)
Article
Medicine, General & Internal
Stine Emilie Junker Udesen, Dorthe Susanne Nielsen, Nina Andersen, Christina Ostervang, Annmarie Touborg Lassen
Summary: The study in Denmark showed that municipal acute care teams can effectively prevent hospitalisations and reduce caregivers' burden by providing at-home treatment. Patients and caregivers preferred at-home treatment in future similar situations, as it allowed them to maintain their lives. This initiative has been continued to focus on preventing hospitalisations.
Article
Agricultural Economics & Policy
Ajinkya Tanksale, J. K. Jha
BRITISH FOOD JOURNAL
(2015)
Article
Computer Science, Information Systems
Ajinkya Tanksale, J. K. Jha
Article
Management
Ajinkya Tanksale, Jitendra K. Jha
JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY
(2020)
Article
Operations Research & Management Science
Ajinkya Tanksale, J. K. Jha
RAIRO-OPERATIONS RESEARCH
(2020)
Article
Engineering, Industrial
Ajinkya N. Tanksale, Debabrata Das, Priyanka Verma, Manoj Kumar Tiwari
Summary: The study proposes a closed-loop supply chain network design model to optimize the recycling and reuse process of plastic pails, establishing a more sustainable way of managing packaging waste. By introducing an incentive mechanism for acquiring used plastic pails and a green supplier selection program, the multi-objective model is solved, resulting in a diverse set of Pareto optimal solutions.
INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS
(2021)
Article
Green & Sustainable Science & Technology
Vidyadhar V. Gedam, Rakesh D. Raut, Ana Beatriz Lopes de Sousa Jabbour, Ajinkya N. Tanksale, Balkrishna E. Narkhede
Summary: This study aims to identify and prioritize the barriers to the adoption of Circular Economy in the food supply chain of a developing country using the Fuzzy-DEMATEL method. The lack of technology and innovation, uncertainty about food waste, inadequate supply chain design, and economic factors are found to be the major barriers. These findings can help decision-makers formulate effective strategies for implementing CE in the FSC.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Industrial
Gyanesh Tripathi, Ajinkya N. Tanksale, Manish Verma
Summary: The study introduces a multi-objective optimization program that aims to increase the coverage of rail nodes and links by reconfiguring the existing network of relief facilities. Computational experiments demonstrate that this reconfiguration could lead to a 7.86% increase in rail nodes coverage and a 10.78% increase in rail links coverage.
Article
Computer Science, Interdisciplinary Applications
Debabrata Das, Priyanka Verma, Ajinkya N. Tanksale
Summary: Reusable packaging materials provide a circular and sustainable way of transportation along the supply chain. This study focuses on the design problem of a supply chain network for wooden packaging materials. The uncertainties associated with the demand and reusability level of the materials are incorporated using a risk-averse two-stage stochastic programming model. The results show the trade-off among various cost components and provide managerial insights.
COMPUTERS & INDUSTRIAL ENGINEERING
(2022)
Article
Computer Science, Artificial Intelligence
Niteesh Yadav, Ajinkya Tanksale
Summary: We propose a mixed-integer programming model for a multi-objective home healthcare delivery problem, which can handle most of the commonly imposed restrictions in this field. Our model includes selection, assignment, scheduling, and routing decisions, focusing on improving the quality of the schedule for selected patients. We calculate the inconvenience caused by scattered visits and their overlap with patient-specific inconvenient time windows to minimize the total inconvenience cost for patients while considering other stakeholders' competitive goals.
EXPERT SYSTEMS WITH APPLICATIONS
(2023)
Article
Computer Science, Interdisciplinary Applications
Ankit Chouksey, Anil Kumar N. Agrawal, Ajinkya Tanksale
Summary: The present work on maternal healthcare in India focuses on addressing the limited availability and accessibility of related facilities. A mixed-integer linear programming formulation is proposed to determine the optimal number and location of these facilities and allocate mothers-to-be while minimizing costs. Additional valid inequalities are incorporated to reduce computational burden, and a sequential approach is proposed for further computational advantage. The results highlight the effectiveness and efficiency of the sequential approach and provide practical insights for establishing a mix of facilities. The application of the model in an Indian district demonstrates its suitability in the Indian context.
COMPUTERS & INDUSTRIAL ENGINEERING
(2022)
Article
Operations Research & Management Science
Prashant Singh, Ankush R. Kamthane, Ajinkya N. Tanksale
Summary: An extension of the generalized covering salesman problem is presented in this work, named as distance constrained generalized m-covering salesman problem. A bi-objective mixed-integer programming model is formulated, and two metaheuristics ACO and GRASP are proposed for efficient solution. Computational experiments show that the GRASP metaheuristics outperform the ACO algorithm for medium and large size instances.
Article
Computer Science, Interdisciplinary Applications
Ajinkya Tanksale, J. K. Jha
COMPUTERS & INDUSTRIAL ENGINEERING
(2017)
Review
Management
Vinicius N. Motta, Miguel F. Anjos, Michel Gendreau
Summary: This survey presents a review of optimization approaches for the integration of demand response in power systems planning and highlights important future research directions.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Philipp Schulze, Armin Scholl, Rico Walter
Summary: This paper proposes an improved branch-and-bound algorithm, R-SALSA, for solving the simple assembly line balancing problem, which performs well in balancing workloads and providing initial solutions.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Roshan Mahes, Michel Mandjes, Marko Boon, Peter Taylor
Summary: This paper discusses appointment scheduling and presents a phase-type-based approach to handle variations in service times. Numerical experiments with dynamic scheduling demonstrate the benefits of rescheduling.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Oleg S. Pianykh, Sebastian Perez, Chengzhao Richard Zhang
Summary: Efficient scheduling is crucial for optimizing resource allocation and system performance. This study focuses on critical utilization and efficient scheduling in discrete scheduling systems, and compares the results with classical queueing theory.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Review
Management
Hamed Jahani, Babak Abbasi, Jiuh-Biing Sheu, Walid Klibi
Summary: Supply chain network design is a large and growing area of research. This study comprehensively surveys and analyzes articles published from 2008 to 2021 to detect and report financial perspectives in SCND models. The study also identifies research gaps and offers future research directions.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Patrick Healy, Nicolas Jozefowiez, Pierre Laroche, Franc Marchetti, Sebastien Martin, Zsuzsanna Roka
Summary: The Connected Max-k-Cut Problem is an extension of the well-known Max-Cut Problem, where the objective is to partition a graph into k connected subgraphs by maximizing the cost of inter-partition edges. The researchers propose a new integer linear program and a branch-and-cut algorithm for this problem, and also use graph isomorphism to structure the instances and facilitate their resolution. Extensive computational experiments show that, if k > 2, their approach outperforms existing algorithms in terms of quality.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Victor J. Espana, Juan Aparicio, Xavier Barber, Miriam Esteve
Summary: This paper introduces a new methodology based on the machine learning technique MARS for estimating production functions that satisfy classical production theory axioms. The new approach overcomes the overfitting problem of DEA through generalized cross-validation and demonstrates better performance in reducing mean squared error and bias compared to DEA and C2NLS methods.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Stefano Nasini, Rabia Nessah
Summary: In this paper, the authors investigate the impact of time flexibility in job scheduling, showing that it can significantly affect operators' ability to solve the problem efficiently. They propose a new methodology based on convex quadratic programming approaches that allows for optimal solutions in large-scale instances.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Zhiqiang Liao, Sheng Dai, Timo Kuosmanen
Summary: Nonparametric regression subject to convexity or concavity constraints is gaining popularity in various fields. The conventional convex regression method often suffers from overfitting and outliers. This paper proposes the convex support vector regression method to address these issues and demonstrates its advantages in prediction accuracy and robustness through numerical experiments.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Kuo-Hao Chang, Ying-Zheng Wu, Wen-Ray Su, Lee-Yaw Lin
Summary: The damage and destruction caused by earthquakes necessitates the evacuation of affected populations. Simulation models, such as the Stochastic Pedestrian Cell Transmission Model (SPCTM), can be utilized to enhance disaster and evacuation management. The analysis of SPCTM provides insights for government officials to formulate effective evacuation strategies.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Qinghua Wu, Mu He, Jin-Kao Hao, Yongliang Lu
Summary: This paper studies a variant of the orienteering problem known as the clustered orienteering problem. In this problem, customers are grouped into clusters and a profit is associated with each cluster, collected only when all customers in the cluster are served. The proposed evolutionary algorithm, incorporating a backbone-based crossover operator and a destroy-and-repair mutation operator, outperforms existing algorithms on benchmark instances and sets new records on some instances. It also demonstrates scalability on large instances and has shown superiority over three state-of-the-art COP algorithms. The algorithm is also successfully applied to a dynamic version of the COP considering stochastic travel time.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Bjorn Bokelmann, Stefan Lessmann
Summary: Estimating treatment effects is an important task for data analysts, and uplift models provide support for efficient allocation of treatments. However, evaluating uplift models is challenging due to variance issues. This paper theoretically analyzes the variance of uplift evaluation metrics, proposes variance reduction methods based on statistical adjustment, and demonstrates their benefits on simulated and real-world data.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Congzheng Liu, Wenqi Zhu
Summary: This paper proposes a feature-based non-parametric approach to minimizing the conditional value-at-risk in the newsvendor problem. The method is able to handle both linear and nonlinear profits without prior knowledge of the demand distribution. Results from numerical and real-life experiments demonstrate the robustness and effectiveness of the approach.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Laszlo Csato
Summary: This paper compares the performance of the eigenvalue method and the row geometric mean as two weighting procedures. Through numerical experiments, it is found that the priorities derived from the two eigenvectors in the eigenvalue method do not always agree, while the row geometric mean serves as a compromise between them.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)
Article
Management
Guowei Dou, Tsan-Ming Choi
Summary: This study investigates the impact of channel relationships between manufacturers on government policies and explores the effectiveness of positive incentives versus taxes in increasing social welfare. The findings suggest that competition may be more effective in improving sustainability and social welfare. Additionally, government incentives for green technology may not necessarily enhance sustainability.
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
(2024)