首页 > 最新文献

3C Empresa. Investigación y pensamiento crítico最新文献

英文 中文
Role of frame structure in the development of KRS for learning dialogues. 框架结构在KRS学习对话发展中的作用。
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.250-261
H. Singh
Dialogues are building blocks of tasks and non-tasks of communication, which happen between objects in the universe. Each dialogue is a source of linguistic knowledge within a natural language that explains and elaborates with frame structure in general. In this paper, it is noticed that various forms like (nouns, pronouns, yes-no questions and deletion) are essential part of each dialogue structure (DSS) in Chandan’s work ਜੜਾਂ/Roots. With the help of frames, knowledge representation system (KRS) is prepared for such dialogues in Punjabi. On the other hand, it is argued that highest numbers of nouns are total 45 in DS2 and only 1 deletion case finds in DS3. While DS1 and DS2 both have similar number of 2-2 cases of yes-no questions. The overall evaluation is successfully matched with proposed an algorithm based on frames.
对话是交流的任务和非任务的基石,发生在宇宙中的物体之间。每一段对话都是自然语言中语言知识的一个来源,用一般的框架结构进行解释和阐述。本文注意到,在钱丹的作品《根》中,各种形式(名词、代词、是非问句和删除)是每个对话结构(DSS)的重要组成部分。在框架的帮助下,知识表示系统(KRS)准备了旁遮普语的这种对话。另一方面,我们认为在DS2中有最多的45个名词,而在DS3中只有1个名词被删除。而DS1和DS2都有类似数量的2-2个是-否问题。提出了一种基于帧的算法,成功匹配了整体评价。
{"title":"Role of frame structure in the development of KRS for learning dialogues.","authors":"H. Singh","doi":"10.17993/3cemp.2022.110250.250-261","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.250-261","url":null,"abstract":"Dialogues are building blocks of tasks and non-tasks of communication, which happen between objects in the universe. Each dialogue is a source of linguistic knowledge within a natural language that explains and elaborates with frame structure in general. In this paper, it is noticed that various forms like (nouns, pronouns, yes-no questions and deletion) are essential part of each dialogue structure (DSS) in Chandan’s work ਜੜਾਂ/Roots. With the help of frames, knowledge representation system (KRS) is prepared for such dialogues in Punjabi. On the other hand, it is argued that highest numbers of nouns are total 45 in DS2 and only 1 deletion case finds in DS3. While DS1 and DS2 both have similar number of 2-2 cases of yes-no questions. The overall evaluation is successfully matched with proposed an algorithm based on frames.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114015970","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
Analysis is a discrete time queueing-inventory model with back-order of items 分析是一个离散时间排队-库存模型
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.50-62
M. Anilkumar, K. P. Jose
This paper analyses a discrete-time (s, S) queueing inventory model with service time and back-order in inventory. The arrival of customers is assumed to be the Bernoulli process. Service time follows a geometric distribution. As soon as the inventory level reaches a pre-assigned level due to demands, an order for replenishment is placed. Replenishment time also follows a geometric distribution. When the inventory level reduces to zero due to the service of customers or non-replenishment of items, a maximum of k customers are allowed in the system and the remaining customers are assumed to be completely lost till the replenishment. Matrix-Analytic Method (MAM) is used to analyze the model. Stability conditions, various performance measures of the system, waiting-time distribution and reorder-time distribution are obtained. Numerical experiments are also incorporated.
本文分析了考虑服务时间和库存缺货的离散时间(s, s)排队库存模型。顾客的到来被假定为伯努利过程。使用时间遵循几何分布。一旦库存水平由于需求而达到预先分配的水平,就会发出补充订单。补充时间也遵循几何分布。当由于客户服务或未补货导致库存水平降至零时,系统最多允许k个客户,假设剩余客户完全丢失,直至补货。采用矩阵分析法(MAM)对模型进行分析。得到了系统的稳定性条件、各种性能指标、等待时间分布和重序时间分布。数值实验也被纳入。
{"title":"Analysis is a discrete time queueing-inventory model with back-order of items","authors":"M. Anilkumar, K. P. Jose","doi":"10.17993/3cemp.2022.110250.50-62","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.50-62","url":null,"abstract":"This paper analyses a discrete-time (s, S) queueing inventory model with service time and back-order in inventory. The arrival of customers is assumed to be the Bernoulli process. Service time follows a geometric distribution. As soon as the inventory level reaches a pre-assigned level due to demands, an order for replenishment is placed. Replenishment time also follows a geometric distribution. When the inventory level reduces to zero due to the service of customers or non-replenishment of items, a maximum of k customers are allowed in the system and the remaining customers are assumed to be completely lost till the replenishment. Matrix-Analytic Method (MAM) is used to analyze the model. Stability conditions, various performance measures of the system, waiting-time distribution and reorder-time distribution are obtained. Numerical experiments are also incorporated.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"82 5 Pt 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116410307","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: 3
On a queueing inventory with common life time and reduction sale consequent to increase in age 具有共同寿命和随着年龄增长而减少销售的排队库存
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.15-31
Abdul Rof, A. Krishnamoorthy
Consider an inventoried item for which reduction in sales price is declared as the age of the item increases. Decision to maintain sales price at the same level/reduce, is taken at stages 2, · · · , k − 1, k. On the items attaining CLT, they are sold at scrap value, provided items are still left in stock. Customer arrival forms a non-homogenous Poisson process, with rate increasing with each sales price reduction. Service time follows exponential distribution.The items are replenished according to (S, s) policy with positive lead time. Each stage of CLT is iid which follows a Phase type distribution with representation(α, S) of orderm. The k-fold convolution of this distribution is the CLT of the inventoried items. The problem is modelled as a queueing-inventory problem which is a continuous time Markov chain (CTMC). The stationary distribution of this CTMC is computed and various performance measures are discussed. A cost function is constructed to compute the optimal order quantity and reorder level.The model is compared with queueing inventory model in which the CLT follows Erlang Distribution of order k.
考虑一个库存物品,其销售价格随着物品使用年限的增加而降低。将销售价格维持在相同水平/降低的决定在阶段2,···,k−1,k做出。对于达到CLT的物品,如果物品仍有库存,则以报废价值出售。客户到达形成了一个非均匀的泊松过程,随着销售价格的降低,速度增加。使用时间服从指数分布。根据(S, S)政策补货,货期为正。CLT的每一阶段都是iid的,它遵循一个有序表示(α, S)的相型分布。该分布的k倍卷积是库存物品的CLT。该问题被建模为一个连续时间马尔可夫链(CTMC)的排队-库存问题。计算了该CTMC的平稳分布,并讨论了各种性能指标。构造了成本函数来计算最优订货量和再订货水平。将该模型与CLT服从k阶Erlang分布的排队库存模型进行了比较。
{"title":"On a queueing inventory with common life time and reduction sale consequent to increase in age","authors":"Abdul Rof, A. Krishnamoorthy","doi":"10.17993/3cemp.2022.110250.15-31","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.15-31","url":null,"abstract":"Consider an inventoried item for which reduction in sales price is declared as the age of the item increases. Decision to maintain sales price at the same level/reduce, is taken at stages 2, · · · , k − 1, k. On the items attaining CLT, they are sold at scrap value, provided items are still left in stock. Customer arrival forms a non-homogenous Poisson process, with rate increasing with each sales price reduction. Service time follows exponential distribution.The items are replenished according to (S, s) policy with positive lead time. Each stage of CLT is iid which follows a Phase type distribution with representation(α, S) of orderm. The k-fold convolution of this distribution is the CLT of the inventoried items. The problem is modelled as a queueing-inventory problem which is a continuous time Markov chain (CTMC). The stationary distribution of this CTMC is computed and various performance measures are discussed. A cost function is constructed to compute the optimal order quantity and reorder level.The model is compared with queueing inventory model in which the CLT follows Erlang Distribution of order k.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128898957","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: 1
Additive Number Theory: Notes and Some Problems 加性数论:注意事项及若干问题
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.186-196
B. Shankar
A brief account of some of the major results in additive number theory is given along with a small list of problems.
简要叙述了加性数论的一些主要结果,并列出了一些问题。
{"title":"Additive Number Theory: Notes and Some Problems","authors":"B. Shankar","doi":"10.17993/3cemp.2022.110250.186-196","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.186-196","url":null,"abstract":"A brief account of some of the major results in additive number theory is given along with a small list of problems.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129114252","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
Z-Hyperrigidity and Z-boundary representations z -超刚性和z -边界表示
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.173-184
V. A. Anjali, Athul Augustine, P. Shankar
In this article, we introduce the notions of Z-finite representations and Z-separation property of representations for operator Z-systems generating C∗-algebras. We use these notions to characterize the Z-boundary representations for operator Z-systems. We introduce Z-hyperrigidity of operator Z-systems. We investigate an analogue version of Saskin’s theorem in the setting of operator Z-systems generating C∗-algebras.
在本文中,我们引入了生成C * -代数的算子z系统的z有限表示的概念和表示的z分离性质。我们使用这些概念来表征算子z -系统的z -边界表示。介绍了算子z系的z超刚性。我们研究了产生C * -代数的算子z系统集合中Saskin定理的一个类似版本。
{"title":"Z-Hyperrigidity and Z-boundary representations","authors":"V. A. Anjali, Athul Augustine, P. Shankar","doi":"10.17993/3cemp.2022.110250.173-184","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.173-184","url":null,"abstract":"In this article, we introduce the notions of Z-finite representations and Z-separation property of representations for operator Z-systems generating C∗-algebras. We use these notions to characterize the Z-boundary representations for operator Z-systems. We introduce Z-hyperrigidity of operator Z-systems. We investigate an analogue version of Saskin’s theorem in the setting of operator Z-systems generating C∗-algebras.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129530597","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
Industry 4.0: Intelligent Quality Control and Surface Defect Detection 工业4.0:智能质量控制和表面缺陷检测
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.214-220
Vineeth C. Johnson, Jyoti S Bali, C. B. Kolanur, Shilpa Tanwashi
Quality Control (QC) has recently emerged as a significant global trend among manufacturers, adopting intelligent manufacturing practices in view of Industry 4.0 requirements. Intelligent manufacturing is the process of enhancing production through the use of cutting-edge technologies, sensor integration, analytics, and the Internet of Things (IoT). The proposed paper mainly focuses on the study of the scope and the evolution of quality control techniques from conventional practices to intelligent approaches along with the state of art technologies in place. The challenges faced in building intelligent QC systems, in terms of security, system integration, Interoperability, and Humanrobot collaboration, are highlighted. Surface defect detection has evolved as a critical QC application in modern manufacturing setups to ensure high-quality products with high market demand. Further, the recent trends and issues involved in surface defect detection using intelligent QC techniques are discussed. The methodology of implementing surface defect detection on cement wall surfaces using the Haar Cascade Classifier is discussed.
最近,质量控制(QC)在制造商中成为一种重要的全球趋势,根据工业4.0的要求,采用智能制造实践。智能制造是通过使用尖端技术、传感器集成、分析和物联网(IoT)来提高生产的过程。本文主要集中研究质量控制技术的范围和演变,从传统的实践到智能的方法,以及现有的先进技术。强调了构建智能QC系统在安全性、系统集成、互操作性和人机协作方面面临的挑战。表面缺陷检测已发展成为现代制造设置的关键QC应用程序,以确保高质量的产品具有高市场需求。此外,还讨论了使用智能质量控制技术进行表面缺陷检测的最新趋势和问题。讨论了利用Haar级联分类器实现水泥墙表面缺陷检测的方法。
{"title":"Industry 4.0: Intelligent Quality Control and Surface Defect Detection","authors":"Vineeth C. Johnson, Jyoti S Bali, C. B. Kolanur, Shilpa Tanwashi","doi":"10.17993/3cemp.2022.110250.214-220","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.214-220","url":null,"abstract":"Quality Control (QC) has recently emerged as a significant global trend among manufacturers, adopting intelligent manufacturing practices in view of Industry 4.0 requirements. Intelligent manufacturing is the process of enhancing production through the use of cutting-edge technologies, sensor integration, analytics, and the Internet of Things (IoT). The proposed paper mainly focuses on the study of the scope and the evolution of quality control techniques from conventional practices to intelligent approaches along with the state of art technologies in place. The challenges faced in building intelligent QC systems, in terms of security, system integration, Interoperability, and Humanrobot collaboration, are highlighted. Surface defect detection has evolved as a critical QC application in modern manufacturing setups to ensure high-quality products with high market demand. Further, the recent trends and issues involved in surface defect detection using intelligent QC techniques are discussed. The methodology of implementing surface defect detection on cement wall surfaces using the Haar Cascade Classifier is discussed.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122689530","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: 2
Modelling the critical success factors for advanced manufacturing technology implementation in small and medium sized enterprises 对中小企业实施先进制造技术的关键成功因素进行建模
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.263-275
Dattatraya V. Bhise, Sumant A. Choudhari, Manoj A. Kumbhalkar, Mhalsakant M. Sardeshmukh
In almost every part of the world, small and medium-sized businesses (SMEs) are seen as the backbone of economic expansion. Small and medium-sized enterprises (SMEs) typically have a simpler organisational structure than large corporations, which allows them to be more adaptable, provide instantaneous feedback, have shorter decision-making chains, and respond more quickly to customer needs. Even so, SMEs face enormous pressure to stay competitive in both domestic and international markets. Globalization, new technologies, and evolving consumer preferences are all contributing to a shift in the competitive landscape. These shifts are compelling small and mediumsized enterprises to adopt cutting-edge manufacturing techniques. The goal of this research is to identify the critical success factors (CSFs) that will help and guarantee that SMEs will be able to successfully implement AMTs (SMEs). Literature-based CSFs for AMT deployment are collected and fine-tuned using input from professionals in the field and scholars in the academy. The method of interpretive structural modelling (ISM) is applied to this CSF analysis. According to the ISM study, the three most important factors influencing the adoption of AMT are "Top management support and commitment," "entrepreneurial environment," and "financial availability." The desired goal of AMT implementation is found to be "performance improvement" and "sustainable AMT implementation." The identified CSFs and the structural relationship between them will help SMEs' top management create and prioritise business strategies that ease the implementation of AMT. The study's results point potential AMT financiers in the right direction by highlighting a handful of critical considerations that will improve the project's chances of success.
在世界上几乎每个地方,中小企业都被视为经济扩张的支柱。中小型企业(sme)的组织结构通常比大型企业更简单,这使它们具有更强的适应性,提供即时反馈,决策链更短,对客户需求的响应更快。即便如此,中小企业仍面临着在国内和国际市场上保持竞争力的巨大压力。全球化、新技术和不断变化的消费者偏好都有助于竞争格局的转变。这些转变迫使中小型企业采用尖端制造技术。本研究的目的是确定关键成功因素(CSFs),这将有助于和保证中小企业将能够成功地实施amt(中小企业)。针对AMT部署的基于文献的csf被收集起来,并根据该领域的专业人员和学院学者的意见进行微调。解释结构建模(ISM)的方法被应用到这个CSF分析。根据ISM的研究,影响AMT采用的三个最重要的因素是“高层管理人员的支持和承诺”、“创业环境”和“财务可用性”。AMT实施的期望目标是“性能改进”和“可持续的AMT实施”。已确定的业务流程和它们之间的结构关系将有助于中小企业的高层管理人员制定和优先考虑易于实施AMT的业务战略。该研究的结果通过强调一些将提高项目成功几率的关键因素,为潜在的AMT出资人指明了正确的方向。
{"title":"Modelling the critical success factors for advanced manufacturing technology implementation in small and medium sized enterprises","authors":"Dattatraya V. Bhise, Sumant A. Choudhari, Manoj A. Kumbhalkar, Mhalsakant M. Sardeshmukh","doi":"10.17993/3cemp.2022.110250.263-275","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.263-275","url":null,"abstract":"In almost every part of the world, small and medium-sized businesses (SMEs) are seen as the backbone of economic expansion. Small and medium-sized enterprises (SMEs) typically have a simpler organisational structure than large corporations, which allows them to be more adaptable, provide instantaneous feedback, have shorter decision-making chains, and respond more quickly to customer needs. Even so, SMEs face enormous pressure to stay competitive in both domestic and international markets. Globalization, new technologies, and evolving consumer preferences are all contributing to a shift in the competitive landscape. These shifts are compelling small and mediumsized enterprises to adopt cutting-edge manufacturing techniques. The goal of this research is to identify the critical success factors (CSFs) that will help and guarantee that SMEs will be able to successfully implement AMTs (SMEs). Literature-based CSFs for AMT deployment are collected and fine-tuned using input from professionals in the field and scholars in the academy. The method of interpretive structural modelling (ISM) is applied to this CSF analysis. According to the ISM study, the three most important factors influencing the adoption of AMT are \"Top management support and commitment,\" \"entrepreneurial environment,\" and \"financial availability.\" The desired goal of AMT implementation is found to be \"performance improvement\" and \"sustainable AMT implementation.\" The identified CSFs and the structural relationship between them will help SMEs' top management create and prioritise business strategies that ease the implementation of AMT. The study's results point potential AMT financiers in the right direction by highlighting a handful of critical considerations that will improve the project's chances of success.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115838431","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: 3
On a production-inventory system with defective items and lost sales 在一个有缺陷产品和销售损失的生产库存系统上
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.139-151
M. R.
A production-inventory system with the item produced being admitted (added to the inventory) with probability δ as well as an item from the inventory supplied to the customer with probability γ at the end of a service, is considered in this paper. The (s, S) control policy is followed. We obtain the joint distribution of the number of customers and the number of items in the inventory as the product of their marginals under the assumption that customers do not join when the inventory level is zero. Performance measures that impact the system are obtained. A few level-crossing results are derived. In particular optimal pairs (s, S) are obtained through numerical procedures for values of (γ, δ) on the set {0.1, 0.2, . . . , 1} × {0.1, 0.2, . . . , 1} . A comparison of the performance measures for a few (γ, δ) pair values is provided. Finally, we discuss the first emptiness time distribution for the M/M/1/1 production-inventory system.
本文考虑了一个生产-库存系统,该系统生产的产品以δ概率被接收(添加到库存中),而在服务结束时,从库存中向客户提供的产品以γ概率被接收。遵循(s, s)控制策略。在假设库存水平为零时客户不加入的情况下,我们得到了客户数量和库存物品数量作为其边际乘积的联合分布。获得影响系统的性能指标。得到了一些平交结果。特别地,对于集合{0.1,0.2,…]上的(γ, δ)值,通过数值过程得到了最优对(s, s)。, 1} ×{0.1, 0.2,…, 1}。给出了几个(γ, δ)对值的性能度量的比较。最后,讨论了M/M/1/1生产库存系统的第一次空化时间分布。
{"title":"On a production-inventory system with defective items and lost sales","authors":"M. R.","doi":"10.17993/3cemp.2022.110250.139-151","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.139-151","url":null,"abstract":"A production-inventory system with the item produced being admitted (added to the inventory) with probability δ as well as an item from the inventory supplied to the customer with probability γ at the end of a service, is considered in this paper. The (s, S) control policy is followed. We obtain the joint distribution of the number of customers and the number of items in the inventory as the product of their marginals under the assumption that customers do not join when the inventory level is zero. Performance measures that impact the system are obtained. A few level-crossing results are derived. In particular optimal pairs (s, S) are obtained through numerical procedures for values of (γ, δ) on the set {0.1, 0.2, . . . , 1} × {0.1, 0.2, . . . , 1} . A comparison of the performance measures for a few (γ, δ) pair values is provided. Finally, we discuss the first emptiness time distribution for the M/M/1/1 production-inventory system.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125694978","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: 1
MAP/PH/1 queue with discarding customers having imperfect service MAP/PH/1队列与丢弃的客户服务不完善
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.116-137
S. S., A. Krishnamoorthy
In this paper, we consider two queueing models. Model I is on a single-server queueing system in which the arrival process follows MAP with representation D = (D0,D1) of order m and service time follows phase-type distribution (β, S) of order n. When a customer enters into service, a generalized Erlang clock is started simultaneously. The clock has k stages. The pth stage parameter is θp for 1 ≤ p ≤ k. If a customer completes the service in between the realizations of stages k1 and k2 (1 < k1 < k2 < k) of the clock, it is a perfect one. On the other hand, if the service gets completed either before the kth1 stage realization or after the kth2 stage realization, it is discarded because of imperfection. We analyse this model using the matrix-geometric method. We obtain the expected service time and expected waiting time of a tagged customer. Additional performance measures are also computed. We construct a revenue function and numerically analyse it. In Model II, a single server queueing system in which all assumptions are the same as in Model I except the assumption on service time, is considered. Up to stage k1 service time follows phase-type distribution (α′ , T′) of order n1 and beyond stage k1, the service time follows phase type distribution (β′ , S′) of order n2. We compare the values of the revenue function of the two models
本文考虑了两种排队模型。模型I是一个单服务器排队系统,其中到达过程遵循MAP,表示为D = (D0,D1),阶为m,服务时间遵循阶为n的相位型分布(β, S)。当客户进入服务时,一个广义Erlang时钟同时启动。这个钟有k级。当1≤p≤k时,第p阶段参数为θp,如果客户在时钟的k1和k2阶段(1 < k1 < k2 < k)实现之间完成服务,则为完美客户。另一方面,如果服务在kth1阶段实现之前或kth2阶段实现之后完成,则由于不完善而被丢弃。我们用矩阵几何方法对该模型进行了分析。我们得到被标记顾客的期望服务时间和期望等待时间。还计算了其他性能度量。我们构造了一个收益函数并对其进行了数值分析。在模型II中,考虑一个单服务器排队系统,该系统除对服务时间的假设外,所有假设与模型I相同。在阶段k1之前,服务时间服从n1阶相型分布(α′,T′),在阶段k1之后,服务时间服从n2阶相型分布(β′,S′)。我们比较了两种模型的收益函数值
{"title":"MAP/PH/1 queue with discarding customers having imperfect service","authors":"S. S., A. Krishnamoorthy","doi":"10.17993/3cemp.2022.110250.116-137","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.116-137","url":null,"abstract":"In this paper, we consider two queueing models. Model I is on a single-server queueing system in which the arrival process follows MAP with representation D = (D0,D1) of order m and service time follows phase-type distribution (β, S) of order n. When a customer enters into service, a generalized Erlang clock is started simultaneously. The clock has k stages. The pth stage parameter is θp for 1 ≤ p ≤ k. If a customer completes the service in between the realizations of stages k1 and k2 (1 < k1 < k2 < k) of the clock, it is a perfect one. On the other hand, if the service gets completed either before the kth1 stage realization or after the kth2 stage realization, it is discarded because of imperfection. We analyse this model using the matrix-geometric method. We obtain the expected service time and expected waiting time of a tagged customer. Additional performance measures are also computed. We construct a revenue function and numerically analyse it. In Model II, a single server queueing system in which all assumptions are the same as in Model I except the assumption on service time, is considered. Up to stage k1 service time follows phase-type distribution (α′ , T′) of order n1 and beyond stage k1, the service time follows phase type distribution (β′ , S′) of order n2. We compare the values of the revenue function of the two models","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123909906","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
Continuous-time zero-sum games for Markov decision processes with risk-sensitive finite-horizon cost criterio on a general state space 一般状态空间上具有风险敏感有限视界代价准则的马尔可夫决策过程的连续时间零和博弈
Pub Date : 2022-12-29 DOI: 10.17993/3cemp.2022.110250.76-92
Subrata Golui, Chandan Pal
In this manuscript, we study continuous-time risk-sensitive finite-horizon time-homogeneous zero-sum dynamic games for controlled Markov decision processes (MDP) on a Borel space. Here, the transition and payoff functions are extended real-valued functions. We prove the existence of the game’s value and the uniqueness of the solution of Shapley equation under some reasonable assumptions. Moreover, all possible saddle-point equilibria are completely characterized in the class of all admissible feedback multi-strategies. We also provide an example to support our assumptions.
本文研究了Borel空间上可控马尔可夫决策过程(MDP)的连续时间风险敏感有限视界时间齐次零和动态对策。这里,转移函数和收益函数是扩展实值函数。在合理的假设条件下,证明了该对策值的存在性和Shapley方程解的唯一性。此外,所有可能的鞍点均衡在所有可接受反馈多策略类中被完全表征。我们还提供了一个例子来支持我们的假设。
{"title":"Continuous-time zero-sum games for Markov decision processes with risk-sensitive finite-horizon cost criterio on a general state space","authors":"Subrata Golui, Chandan Pal","doi":"10.17993/3cemp.2022.110250.76-92","DOIUrl":"https://doi.org/10.17993/3cemp.2022.110250.76-92","url":null,"abstract":"In this manuscript, we study continuous-time risk-sensitive finite-horizon time-homogeneous zero-sum dynamic games for controlled Markov decision processes (MDP) on a Borel space. Here, the transition and payoff functions are extended real-valued functions. We prove the existence of the game’s value and the uniqueness of the solution of Shapley equation under some reasonable assumptions. Moreover, all possible saddle-point equilibria are completely characterized in the class of all admissible feedback multi-strategies. We also provide an example to support our assumptions.","PeriodicalId":365908,"journal":{"name":"3C Empresa. Investigación y pensamiento crítico","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133300985","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
期刊
3C Empresa. Investigación y pensamiento crítico
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1