Operations Research Perspectives最新文献_第7页

Clustering and reference value for assessing influence in analytic network process without pairwise comparison matrices: Study of 17 real cases 不使用两两比较矩阵的网络分析过程的聚类及其影响评价的参考价值——17个实际案例的研究

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100275

Erik Schulze-González , Juan-Pascual Pastor-Ferrando , Pablo Aragonés-Beltrán

{"title":"Clustering and reference value for assessing influence in analytic network process without pairwise comparison matrices: Study of 17 real cases","authors":"Erik Schulze-González , Juan-Pascual Pastor-Ferrando , Pablo Aragonés-Beltrán","doi":"10.1016/j.orp.2023.100275","DOIUrl":"10.1016/j.orp.2023.100275","url":null,"abstract":"<div><p>The analytic network process (ANP) is a well-known multi-criteria decision method that uses pairwise comparison matrices to assess the influence among elements and clusters. This method requires the participation of experts who need to answer a large number of questions. A recent paper proposes using Decision-Making Trial and Evaluation (DEMATEL) scales in ANP to assess influences and suggests the possibility of grouping all elements into a single cluster. This rise the following questions that this paper seek to answer: if no comparison matrices are used in ANP, how similar are the results, whether clusters are used or not, to the original results with ANP using pairwise matrices? Why should or should not one or several groups be used in ANP? How much does the result change when considering multiple groups versus a single group? Does the variation of questions compensate for the variation of the results? How should the evaluation of influences and the use of the scale be approached depending on whether there are one or several groups? For this purpose, published cases solved with ANP have been reviewed and solved without comparison matrices, with the original clustering and with a single cluster, using four different models for each case study. The results show that clustering does influence the results. It should also be noted that the use of clustering helps to identify the elements of the decision problem. Additionally, this work includes the compilation of 17 cases matrices which can be used in further studies</p></div>","PeriodicalId":38055,"journal":{"name":"Operations Research Perspectives","volume":"10 ","pages":"Article 100275"},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44059354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A mathematical framework for regional hospital case mix planning and capacity appraisal 区域医院病例组合规划与能力评估的数学框架

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2022.100261

Robert L Burdett , Paul Corry , Prasad Yarlagadda , David Cook , Sean Birgan , Steven M McPhail

{"title":"A mathematical framework for regional hospital case mix planning and capacity appraisal","authors":"Robert L Burdett , Paul Corry , Prasad Yarlagadda , David Cook , Sean Birgan , Steven M McPhail","doi":"10.1016/j.orp.2022.100261","DOIUrl":"10.1016/j.orp.2022.100261","url":null,"abstract":"<div><p>This article considers current capacity issues in health care and the development of quantitative techniques to facilitate a high-level strategic assessment of hospital activity within a region. In providing that assessment, a variety of decision problems are foreseen, and we test the notion that it is useful to provide decision support for those. To achieve that support, several optimization models are developed and tested. In theory the presented models may help health care planners organise hospital resources and activity better, to treat more patients. The first model that we propose identifies a maximal caseload that meets the patient type proportions specified in a regional case mix imposed by a planner, executive or manager. The second model identifies how spatially distributed demand can best be met amongst the different hospitals, such that travel distance and unmet demand are minimised. The third model identifies how individual hospitals can jointly achieve their goals with the help of outsourcing. Each of the models has been implemented and tested on some demonstrative examples of a smaller nature, before a larger study is presented. Our case study demonstrates that appropriate data can be collected, and the proposed decision models can provide a rational appraisal of regional capacity and utilization.</p></div>","PeriodicalId":38055,"journal":{"name":"Operations Research Perspectives","volume":"10 ","pages":"Article 100261"},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41452021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

An integer programming model for obtaining cyclic quasi-difference matrices 求循环拟差分矩阵的整数规划模型

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2022.100260

Luis Martínez , María Merino , Juan Manuel Montoya

引用次数: 0

RETRACTED: SIR model for the spread of COVID-19: A case study 撤稿:COVID-19传播的SIR模型:一个案例研究

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2022.100265

Ayoob Salimipour , Toktam Mehraban , Hevi Seerwan Ghafour , Noreen Izza Arshad , M.J. Ebadi

引用次数: 6

Bilevel integer linear models for ranking items and sets 排序项目和集合的双层整数线性模型

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100271

Martine Labbé , Mercedes Landete , Juan F. Monge

{"title":"Bilevel integer linear models for ranking items and sets","authors":"Martine Labbé , Mercedes Landete , Juan F. Monge","doi":"10.1016/j.orp.2023.100271","DOIUrl":"10.1016/j.orp.2023.100271","url":null,"abstract":"<div><p>Item and set orderings help with data management. Depending on the context, it is just as important to order a list of items (customers from different provinces, companies from different sectors, players from different teams) as it is to order a list of sets of these items (provinces, sectors, teams). It is evident that the order that is chosen for the items is not independent of the order that is chosen for the sets. It is possible that several set orders are sensible for the same item order and vice versa, that several item orders are sensible for the same set order. In this work, we propose a bilevel model to calculate an adequate order of items when an order of sets is available and another bilevel model to calculate an adequate order of sets when an order of items is available. In addition, it is shown how to reduce both bilevel models to single level models. Two illustrative computational studies are presented, the first with collected on 25 tennis players and ATP statistics and the second with Biomedical data. Both examples illustrate the good behavior of the models and the interest of their application in a real case scenario</p></div>","PeriodicalId":38055,"journal":{"name":"Operations Research Perspectives","volume":"10 ","pages":"Article 100271"},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45718134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The cost-benefit approach to an optimal charging scheme for an embryo storage service 胚胎储存服务最优收费方案的成本效益方法

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100281

Yael Lahav , Avi Herbon , Uriel Spiegel

{"title":"The cost-benefit approach to an optimal charging scheme for an embryo storage service","authors":"Yael Lahav , Avi Herbon , Uriel Spiegel","doi":"10.1016/j.orp.2023.100281","DOIUrl":"10.1016/j.orp.2023.100281","url":null,"abstract":"<div><p>Cryostorage of human embryos produced during the course of in vitro fertilization (IVF) treatment is an important issue for hospitals, governments and individuals who are facing fertility challenges. Embryo cryostorage is giving rise to increasing economic, ethical and legal concerns due to the increasing holding and operational costs of storage, the rise in the number of unused embryos, and the absence of economic incentives for hospitals to provide free cryostorage services. These issues may reduce the availability of storage services and encourage individuals to seek embryo donations from abroad with attendant medical risks and the possibility of illegal transactions. Given that both public and private healthcare institutions are increasingly motivated by economic factors, increasing the economic incentive to offer cryostorage has the potential to increase the provision of storage facilities. This paper proposes a nonlinear programming model to enable a hospital or other service provider to determine the optimal price it should charge for storage. The suggested pricing policy comprises three components; however, our analysis shows that an optimal solution can only include a maximum of two of these components. Finally, the paper introduces a numerical example as well as a real-data comparison among several providers to demonstrate the applicability and value of the proposed model.</p></div>","PeriodicalId":38055,"journal":{"name":"Operations Research Perspectives","volume":"10 ","pages":"Article 100281"},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47281788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On deciding when to stop metaheuristics: Properties, rules and termination conditions 决定何时停止元启发式:属性、规则和终止条件

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100283

Albert Corominas

引用次数: 0

Measuring the performance of retailers during the COVID-19 pandemic: Embedding optimal control theory principles in a dynamic data envelopment analysis approach 衡量零售商在COVID-19大流行期间的绩效:在动态数据包络分析方法中嵌入最优控制理论原理

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100282

Isotilia Costa Melo , Paulo Nocera Alves Junior , Jéssica Syrio Callefi , Karoline Arguelho da Silva , Marcelo Seido Nagano , Daisy Aparecida do Nascimento Rebelatto , Athanasios Rentizelas

{"title":"Measuring the performance of retailers during the COVID-19 pandemic: Embedding optimal control theory principles in a dynamic data envelopment analysis approach","authors":"Isotilia Costa Melo , Paulo Nocera Alves Junior , Jéssica Syrio Callefi , Karoline Arguelho da Silva , Marcelo Seido Nagano , Daisy Aparecida do Nascimento Rebelatto , Athanasios Rentizelas","doi":"10.1016/j.orp.2023.100282","DOIUrl":"10.1016/j.orp.2023.100282","url":null,"abstract":"<div><p>Traditional retailers (bricks-and-mortar) have been continuously increasing online sales. However, not all retail companies were able to respond to the increasing sales with the same efficiency level as their competitors. This paper aims to propose a dynamic model – incorporating principles of Optimal Control Theory (OCT) into a Data Envelopment Analysis (DEA) model - for measuring the performance of retailing companies’ cost efficiency. It also aims to contribute through the application by investigating the impact of the pandemic on companies from the most prominent developing market in Latin America, Brazil. Twenty-one companies publicly traded in the São Paulo Stock Exchanges (B3) between the third quarter of 2018 (3Q2018) and the third quarter of 2020 (3Q2020) were investigated. Also, six measures - initial inventory cost (<em>IIC</em>), final inventory cost (<em>FIC</em>), net operating income (<em>NOI</em>), cost of goods sold (<em>COGS</em>), cost of the purchased product (<em>CPP</em>), and plant, property, and equipment (<em>PPE</em>) – were considered. In this way, the findings have implications for researchers and practitioners. Practitioners can discover which competitor(s) is (are) adopting the best practices at each operational aspect (e.g., inventory cost). Additionally, the proposed method can be replicated in other markets (developing or not) and for other categories of retailing companies (e.g., small- and middle-sized). Further research directions are presented, and their implications are discussed.</p></div>","PeriodicalId":38055,"journal":{"name":"Operations Research Perspectives","volume":"10 ","pages":"Article 100282"},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48847743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"管理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An unsupervised learning-based generalization of Data Envelopment Analysis 基于无监督学习的数据包络分析泛化

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100284

Raul Moragues , Juan Aparicio , Miriam Esteve

引用次数: 0

A numerical comparative study of completion methods for pairwise comparison matrices 两两比较矩阵补全方法的数值比较研究

IF 2.5 4区管理学

Operations Research Perspectives Pub Date : 2023-01-01 DOI: 10.1016/j.orp.2023.100272

Hailemariam Abebe Tekile, Matteo Brunelli, Michele Fedrizzi

引用次数: 5