Decision Making in Manufacturing and Services最新文献_第2页

The Application of genetic algorithms for the selection of WSE companies in Warsaw for the investment portfolio. 遗传算法在华沙WSE公司投资组合选择中的应用。

Decision Making in Manufacturing and Services Pub Date : 2020-12-30 DOI: 10.7494/dmms.2020.14.1.3809

B. Basiura, Joanna Motyczyńska

{"title":"The Application of genetic algorithms for the selection of WSE companies in Warsaw for the investment portfolio.","authors":"B. Basiura, Joanna Motyczyńska","doi":"10.7494/dmms.2020.14.1.3809","DOIUrl":"https://doi.org/10.7494/dmms.2020.14.1.3809","url":null,"abstract":"Portfolio analysis is a tool particularly intended for investors. Risk assessment and risk specification make the investor able to properly diversify and offset the portfolio. Broadly speaking, there are multiple tools destined for building up an efficient set of portfolios.One of them is Markowitz’s model theory postulating building up a portfolio determined on the basis of equilibrium between expected profit level as well as accepted level of risk assessment.In the context of this paper, the objective is to shed some light on creating investment portfolios based on either Markowitz's portfolio theory or evolutionary algorithm. The simulation based methods for building up a portfolio of approximately 40-50 companies listed out in the primary marketof the Warsaw Stock Exchange using the selection function proposed in the BA thesis were presented.Portfolio profit values have been evaluated in a dynamically shifted time window. The conducted analysis showed shifts in the economy at certain periods of time. The implemented genetic algorithms smoothly handled the optimization with a relatively short processing time of the task result.","PeriodicalId":437771,"journal":{"name":"Decision Making in Manufacturing and Services","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127434035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation of the Impact of Waste Batteries on Ecosystem Reliability 废电池对生态系统可靠性影响的仿真研究

Decision Making in Manufacturing and Services Pub Date : 2020-12-01 DOI: 10.7494/dmms.2020.14.1.3714

A. Petrov, V. Pohrebennyk, A. Shybanova, M. Ruda

{"title":"Simulation of the Impact of Waste Batteries on Ecosystem Reliability","authors":"A. Petrov, V. Pohrebennyk, A. Shybanova, M. Ruda","doi":"10.7494/dmms.2020.14.1.3714","DOIUrl":"https://doi.org/10.7494/dmms.2020.14.1.3714","url":null,"abstract":"To assess the impact of not just the battery as such but its multi-element composition on the state of the environment, a new approach is proposed through the determination of the reliability of ecosystems, which makes it possible to obtain quantitative indexes of the stability and losses of natural ecosystems. These data can be used as indicators of the state of the environment, and hence as the assessment of an environmental component that is important for determining the actual impact of the multi-element composition of batteries. On the basis of such indicators, which can be obtained using the SimaPro software, it is possible to calculate thresholds beyond which negative phenomena occur, as well as to predict and simulate situations, to carry out the mapping of sources of risks, to monitor changes, and this will allow identifying the causes of these changes or determining the factors that slow down or retard the approach of ecosystems to a critical state, i.e. to develop preventive measures to avoid disasters. The eco-indicator 99 is one of the methods that allows us to accept one estimate for the whole product - the so-called ecological index. It is the sum of all individual eco-points or partial indexes for all life-cycle processes. The computational procedure is carried out by summing up the results of weighing the phases of the life cycle.","PeriodicalId":437771,"journal":{"name":"Decision Making in Manufacturing and Services","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134389234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The preferable ways of decision-making in IT teams IT团队中更可取的决策方式

Decision Making in Manufacturing and Services Pub Date : 2020-01-28 DOI: 10.7494/dmms.2019.13.1-2.2788

B. Krawczyk-Brylka, H. Krawczyk

引用次数: 2

The Concept of Industry 4.0 Related Manufacturing Technology Maturity Model (Manutech Maturity Model, MTMM) 工业4.0相关制造技术成熟度模型(Manutech Maturity Model, MTMM)的概念

Decision Making in Manufacturing and Services Pub Date : 2019-04-01 DOI: 10.7494/dmms.2018.12.1-2.17

Jaroslaw Gracel, P. Łebkowski

{"title":"The Concept of Industry 4.0 Related Manufacturing Technology Maturity Model (Manutech Maturity Model, MTMM)","authors":"Jaroslaw Gracel, P. Łebkowski","doi":"10.7494/dmms.2018.12.1-2.17","DOIUrl":"https://doi.org/10.7494/dmms.2018.12.1-2.17","url":null,"abstract":"The main objective of this article is to describe Industry 4.0 and key manufacturing-technology-related technological and business challenges for manufacturing companies. The groups especially interested in the industry 4.0 implementation are operations, technical and production directors responsible for operational excellence of manufacturing plants, strategic development and business continuity. Based on latest Industry 4.0 and manufacturing technology market research, factories located in Poland are less technologically advanced than its counterparts in West European plants. Accordingly, development of the model for assessing the current level of maturity for manufacturing technology related to Industry 4.0 initiative becomes a relevant research task. In the article, key Industry 4.0 related technological areas will be described. Based on the extensive research into international references and industrial consulting experiences in industrial business consulting conducted in Polish manufacturing companies, the manufacturing technology ManuTech Maturity Model (MTMM) concept related to Industry 4.0 will be developed and presented. A substantial and innovative part of the article will be devoted to the adjustment of proposed maturity model to specific features of the Polish industrial and manufacturing sector. This will be relevant due to noticeable differences in the level of technological advancement between Western and Eastern Europe sectors.","PeriodicalId":437771,"journal":{"name":"Decision Making in Manufacturing and Services","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129526264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 31

Risks and implications for decision making processes associated with existing design codes or their non-existence 与现有或不存在的设计规范相关的决策制定过程的风险和影响

Decision Making in Manufacturing and Services Pub Date : 2019-04-01 DOI: 10.7494/DMMS.2018.12.1-2.5

J. Błachut, D. Sala

引用次数: 0

A multi-criteria optimization approach to modeling negotiation process 协商过程建模的多准则优化方法

Decision Making in Manufacturing and Services Pub Date : 2019-04-01 DOI: 10.7494/DMMS.2018.12.1-2.33

Andrzej Łodziński

引用次数: 0