Applied Stochastic Models in Business and Industry最新文献

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Efficient pricing of path-dependent interest rate derivatives 路径依赖利率衍生品的有效定价
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-06-01 DOI: 10.1002/asmb.2877
Allan Jonathan da Silva, Jack Baczynski, José V. M. Vicente
{"title":"Efficient pricing of path-dependent interest rate derivatives","authors":"Allan Jonathan da Silva,&nbsp;Jack Baczynski,&nbsp;José V. M. Vicente","doi":"10.1002/asmb.2877","DOIUrl":"10.1002/asmb.2877","url":null,"abstract":"<p>Interest rate derivative pricing is a critical aspect of fixed-income markets, where efficient methods are essential. This study introduces a novel approach to pricing path-dependent interest rate derivatives within a broad class of affine jumps. The study's particular setting is the Fourier-cosine series (COS) method adaptation, which offers an accurate and computationally efficient method for pricing interest rate derivatives. The Fourier-cosine series approach can be used to compute probability density functions and option pricing with a linear computing complexity and exponential convergence rate. The lack of a quick and precise pricing technique for Asian interest rate options in diverse fixed-income market scenarios is a research gap that is being addressed. This approach closes this gap by providing quasi-closed and closed-form equations for a range of density and characteristic functions, resulting in precise pricing. The results demonstrate the versatility of the COS method in interest rate markets. Similar to what has been previously reported for stock options, the numerical findings demonstrate the extreme precision and computing speed of the pricing and hedging estimations provided here. This method is an innovative approach to interest rate derivative pricing, offering researchers and practitioners a powerful tool for efficiently calculating prices and calibrating options across strikes and maturities.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 4","pages":"1105-1124"},"PeriodicalIF":1.3,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On optimal allocation of redundancies in random weighted k $$ k $$ -out-of- n $$ n $$ systems 论随机加权 k$$ k $$-out-of-n$ n $$ 系统中冗余的最优分配
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-05-29 DOI: 10.1002/asmb.2875
Tanmay Sahoo, Nil Kamal Hazra
{"title":"On optimal allocation of redundancies in random weighted \u0000 \u0000 \u0000 k\u0000 \u0000 $$ k $$\u0000 -out-of-\u0000 \u0000 \u0000 n\u0000 \u0000 $$ n $$\u0000 systems","authors":"Tanmay Sahoo,&nbsp;Nil Kamal Hazra","doi":"10.1002/asmb.2875","DOIUrl":"10.1002/asmb.2875","url":null,"abstract":"<p>Random weighted <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>k</mi>\u0000 </mrow>\u0000 <annotation>$$ k $$</annotation>\u0000 </semantics></math>-out-of-<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>n</mi>\u0000 </mrow>\u0000 <annotation>$$ n $$</annotation>\u0000 </semantics></math> systems are very useful in modeling the lifetimes of systems, wherein the success or failure of a system depends not only on its current operational status, but also on the contributions made by its components. In this paper, we consider random weighted <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>k</mi>\u0000 </mrow>\u0000 <annotation>$$ k $$</annotation>\u0000 </semantics></math>-out-of-<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>n</mi>\u0000 </mrow>\u0000 <annotation>$$ n $$</annotation>\u0000 </semantics></math> systems with redundant components drawn randomly from a mixed population consisting of <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>m</mi>\u0000 </mrow>\u0000 <annotation>$$ m $$</annotation>\u0000 </semantics></math> different subpopulations/substocks. We study different optimal allocation policies of active redundancies and minimal repair components in a random weighted <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>k</mi>\u0000 </mrow>\u0000 <annotation>$$ k $$</annotation>\u0000 </semantics></math>-out-of-<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>n</mi>\u0000 </mrow>\u0000 <annotation>$$ n $$</annotation>\u0000 </semantics></math> system. Moreover, we investigate how the heterogeneity of subpopulations of items impacts the lifetime of a random weighted <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>k</mi>\u0000 </mrow>\u0000 <annotation>$$ k $$</annotation>\u0000 </semantics></math>-out-of-<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>n</mi>\u0000 </mrow>\u0000 <annotation>$$ n $$</annotation>\u0000 </semantics></math> system. We also present some simulational results and a real data analysis for illustrative purpose.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 5","pages":"1245-1274"},"PeriodicalIF":1.3,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
K-Fuse: Credit card fraud detection based on a classification method with a priori class partitioning and a novel feature selection strategy K-Fuse:基于先验类别划分的分类方法和新型特征选择策略的信用卡欺诈检测
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-05-24 DOI: 10.1002/asmb.2868
Mohammed Sabri, Rosanna Verde, Antonio Balzanella
{"title":"K-Fuse: Credit card fraud detection based on a classification method with a priori class partitioning and a novel feature selection strategy","authors":"Mohammed Sabri,&nbsp;Rosanna Verde,&nbsp;Antonio Balzanella","doi":"10.1002/asmb.2868","DOIUrl":"10.1002/asmb.2868","url":null,"abstract":"<p>Online transactions have become the dominant and most popular form of online payment in today's digital economy. Due to the growing popularity of e-commerce and the convenience it offers, both consumers and businesses are rapidly adopting online transactions. Notably, credit cards have become one of the most popular and standard online payment methods. However, it should be noted that credit card transactions are not without challenges. In particular, detecting and preventing fraudulent transactions is a major concern of the online payment system. It is difficult to find an effective detection model that can detect the new patterns created by fraudsters, due to the constant evolution of their methods to exploit the vulnerability of current security protocols. These fraud patterns are evolving and may not correspond to existing documented models, leading to a reduction in their identification. In addition, the customer's behavior can affect the model detection as it is susceptible to change based on factors such as economic conditions, trends, and individual circumstances. When consumers deviate from their typical behavior, the model may generate false alerts, thereby reducing its ability to differentiate between legitimate and fraudulent transactions. This article presents a new supervised detection model, called K-Fuse, which introduces an unsupervised phase in order to detect fraud patterns that may correspond to innovative models introduced by fraudsters. K-Fuse is a supervised classification method that fuses three steps consisting of <i>(i)</i>\u0000unsupervised clustering to identify hidden patterns of transactions in a dataset, <i>(ii)</i> a novel feature selection criterion based on the unsupervised results, and <i>(iii)</i> supervised classification to exploit the results of clustering and feature selection to predict new transactions as fraudulent or legitimate.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 4","pages":"1060-1081"},"PeriodicalIF":1.3,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141101832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sequential monitoring for conditional quantiles of general conditional heteroscedastic time series models 对一般条件异方差时间序列模型的条件定量进行序列监测
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-05-13 DOI: 10.1002/asmb.2865
Sangyeol Lee, Chang Kyeom Kim
{"title":"Sequential monitoring for conditional quantiles of general conditional heteroscedastic time series models","authors":"Sangyeol Lee,&nbsp;Chang Kyeom Kim","doi":"10.1002/asmb.2865","DOIUrl":"10.1002/asmb.2865","url":null,"abstract":"<p>In this study, we introduce an online monitoring procedure designed to sequentially detect change points in the conditional quantiles of location-scale time series models. This statistical process control issue holds great significance in risk management, particularly in measuring the value-at-risk or expected shortfall of financial assets. Our approach employs suitable detectors, including cumulative sum statistics. We then define a stopping rule and determine control limits based on asymptotic theorems to signal an anomaly. To further evaluate the proposed methods, we conduct a comprehensive empirical study analyzing various aspects of our monitoring procedures when applied to location-scale time series models. Additionally, we perform a real data analysis using the daily returns of the Korea Composite Stock Price Index (KOSPI) and EuroStoxx 50 indices to affirm the adequacy of the proposed monitoring procedures in real-world applications.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 4","pages":"1012-1038"},"PeriodicalIF":1.3,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140930862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accelerated failure time frailty model for modeling multiple systems subject to minimal repair 用于模拟受最小修复影响的多系统的加速故障时间虚弱模型
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-05-02 DOI: 10.1002/asmb.2864
Edilenia Queiroz Pereira, Oilson Alberto Gonzatto Junior, Vera Lucia Damasceno Tomazella, Lia Hanna Martins Morita, Alex L. Mota, Francisco Louzada Neto
{"title":"Accelerated failure time frailty model for modeling multiple systems subject to minimal repair","authors":"Edilenia Queiroz Pereira,&nbsp;Oilson Alberto Gonzatto Junior,&nbsp;Vera Lucia Damasceno Tomazella,&nbsp;Lia Hanna Martins Morita,&nbsp;Alex L. Mota,&nbsp;Francisco Louzada Neto","doi":"10.1002/asmb.2864","DOIUrl":"10.1002/asmb.2864","url":null,"abstract":"<p>This article presents accelerated failure time models with and without frailty for modeling multiple systems subject to minimal repair. The study considers the conventional accelerated failure time model, the accelerated failure time model with Gamma frailty, and proposes the accelerated failure time model with weighted Lindley frailty, which has attractive properties such as a closed-form Laplace transform. The proposed model extends the accelerated failure time model with the intensity function of a power law process. It retains the direct physical interpretation of the original accelerated failure time model, in which the role of covariates is to accelerate or decelerate the time to each repair. This framework includes parametric approaches to model fitting, which we consider for estimating the vector of regression parameters under this model and the parameter in the baseline intensity functions. The methodology is illustrated with a simulation study and a toy example to demonstrate the applicability of these models in the industrial context.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 4","pages":"1182-1201"},"PeriodicalIF":1.3,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140830780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Degradation modeling and remaining useful lifetime prediction based on functional variance process 基于功能变异过程的降解模型和剩余使用寿命预测
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-05-01 DOI: 10.1002/asmb.2866
Linjie Qin, Yan Shen
{"title":"Degradation modeling and remaining useful lifetime prediction based on functional variance process","authors":"Linjie Qin,&nbsp;Yan Shen","doi":"10.1002/asmb.2866","DOIUrl":"10.1002/asmb.2866","url":null,"abstract":"<p>Dynamic fluctuation is a common phenomenon in degradation processes. Hence, how to model it properly has a great impact on the degradation modeling as well as the remaining useful lifetime prediction. To capture the dynamic features and to avoid the risk of the model mis-specification, a nonparametric degradation model based on functional variance process is proposed in this article. The model is composed of a unit-specific mean trend and a degradation fluctuation which follows a stochastic process. The mean trend is estimated by the local smoother method, while the stochastic fluctuation is estimated by the functional principal component analysis method. The asymptotic properties of the estimators are proved. Also, the prediction for the remaining useful lifetime is discussed and the estimator is proved to converge in distribution. Moreover, a Bayesian scheme is developed to forecast the remaining useful lifetime for units with incomplete degradation observations. Simulation results show the superiority of the proposed method by comparing it with some existing methods. Finally, two real data sets are analyzed and used to illustrate the application of the method.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 4","pages":"1039-1059"},"PeriodicalIF":1.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140830671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flexible Bayesian reliability demonstration testing 灵活的贝叶斯可靠性演示测试
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-04-26 DOI: 10.1002/asmb.2863
Hugalf Bernburg, Clemens Elster, Katy Klauenberg
{"title":"Flexible Bayesian reliability demonstration testing","authors":"Hugalf Bernburg,&nbsp;Clemens Elster,&nbsp;Katy Klauenberg","doi":"10.1002/asmb.2863","DOIUrl":"10.1002/asmb.2863","url":null,"abstract":"<p>The aim is to demonstrate the reliability of a population at consecutive points in time, where a sample at each current point must prove that at least 100<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>p</mi>\u0000 </mrow>\u0000 <annotation>$$ p $$</annotation>\u0000 </semantics></math>% of the devices function until the next point with a probability of at least <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>1</mn>\u0000 <mo>−</mo>\u0000 <mi>ω</mi>\u0000 </mrow>\u0000 <annotation>$$ 1-omega $$</annotation>\u0000 </semantics></math>. To test the reliability of the population, we flexibilise standard lifetime models by allowing the unknown parameter(s) of the corresponding counting process to vary in time. At the same time, we assign a prior distribution that assumes the parameters to be constant within a certain interval. This flexibilisation has several advantages: it can be applied for all parametric lifetimes; its Markov property allows the efficient derivation of the number of defective devices, even for a large number of testing times; and the inference is less certain and hence more realistic and leads to less frequent acceptance of poor quality populations. On the other hand, the inference is stabilised by the informative prior. Based on the flexibilisation of the homogeneous Poisson process (HPP), we derive acceptance sampling plans to test the future reliability of a population. Applying the zero failure sampling plans on simulations of Weibull processes shows their good frequentist properties and their robustness. In the case of utility meters subject to German regulations (Mess- und Eichverordnung (MessEV). 2014: 2010–2073.), application of the derived sequential sampling plans when the conditions of these plans are met can lead to an extension of the verification validity period. These sampling plans protect the consumer better than those from an HPP and are still cost efficient.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 4","pages":"996-1011"},"PeriodicalIF":1.3,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/asmb.2863","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140808763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Semiparametric evaluation of first-passage distribution for step-stress accelerated degradation tests 阶跃应力加速降解试验首次通过分布的半参数评估
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-04-25 DOI: 10.1002/asmb.2862
Lochana Palayangoda, Hon Keung Tony Ng, Ling Li
{"title":"Semiparametric evaluation of first-passage distribution for step-stress accelerated degradation tests","authors":"Lochana Palayangoda,&nbsp;Hon Keung Tony Ng,&nbsp;Ling Li","doi":"10.1002/asmb.2862","DOIUrl":"10.1002/asmb.2862","url":null,"abstract":"<p>In reliability engineering, different types of accelerated degradation tests have been used to obtain reliability information for evaluating highly reliable or expensive products. The step-stress accelerated degradation test (SSADT) is one of the useful experimental schemes that can be used to save the resources of an experiment. Motivated by the SSADT data for operational amplifiers collected in Xi'an Microelectronic Technology Institute, in which the underlying degradation mechanism of the operational amplifiers is unknown, we propose a semiparametric approach for SSADT data analysis that does not require strict distributional assumptions. Specifically, the empirical saddlepoint approximation method is proposed to estimate the items' lifetime (first-passage time) distribution at both stress levels included and not included in the SSADT experiment. Monte Carlo simulation studies are used to evaluate the performance and illustrate the advantages of the proposed approach. Finally, the proposed semiparametric approach is applied to analyze the motivating data set.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 5","pages":"1209-1228"},"PeriodicalIF":1.3,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140655584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Residential load forecasting based on symplectic geometry mode decomposition and GRU neural network with attention mechanism 基于交映几何模式分解和 GRU 神经网络与关注机制的居民负荷预测
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-04-16 DOI: 10.1002/asmb.2861
Yuting Lu, Gaocai Wang, Xianfei Huang, Man Wu
{"title":"Residential load forecasting based on symplectic geometry mode decomposition and GRU neural network with attention mechanism","authors":"Yuting Lu,&nbsp;Gaocai Wang,&nbsp;Xianfei Huang,&nbsp;Man Wu","doi":"10.1002/asmb.2861","DOIUrl":"10.1002/asmb.2861","url":null,"abstract":"<p>Short-term residential load forecasting plays an increasingly important role in modern smart grids, with its main challenge being the high volatility and uncertainty of load curves. This article proposes a hybrid Symplectic Geometry Mode Decomposition-Gated Recurrent Unit with Attention Mechanism (SGMD-GRUAM) model for hourly residential load forecasting. First, SGMD is used to decompose the residential load and obtain a series of stable subsequences. Then, the Pearson correlation coefficient is used to select features related to each subsequence, such as weather factors. Next, a GRUAM prediction model is constructed for each subsequence. Finally, the final load prediction value is obtained by superimposing the previous component sequences and eliminating the noise sequence. The experiment uses the public dataset from UMass for a case study and compares it with benchmark models such as ARIMA and EEDM-GRUAM. The experimental results show that the proposed SGMD-GRUAM model has significant advantages in terms of prediction performance.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 6","pages":"1544-1570"},"PeriodicalIF":1.3,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140596857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reliability analysis of δ-shock models based on the Markovian arrival process 基于马尔可夫到达过程的 δ 冲击模型的可靠性分析
IF 1.3 4区 数学
Applied Stochastic Models in Business and Industry Pub Date : 2024-04-02 DOI: 10.1002/asmb.2858
Dheeraj Goyal, Ramjan Ali, Nil Kamal Hazra
{"title":"Reliability analysis of δ-shock models based on the Markovian arrival process","authors":"Dheeraj Goyal,&nbsp;Ramjan Ali,&nbsp;Nil Kamal Hazra","doi":"10.1002/asmb.2858","DOIUrl":"10.1002/asmb.2858","url":null,"abstract":"<p>The Markovian arrival process (MAP) is a versatile counting process with dependent and non-identically distributed inter-arrival times following the phase-type distribution. In this article, we study the classical <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>δ</mi>\u0000 </mrow>\u0000 <annotation>$$ delta $$</annotation>\u0000 </semantics></math>-shock model and a mixed <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>δ</mi>\u0000 </mrow>\u0000 <annotation>$$ delta $$</annotation>\u0000 </semantics></math>-shock model by assuming the MAP of shocks. We derive explicit expressions for the reliability and the mean lifetime of the system. Further, we study an optimal replacement policy based on the MAP. We illustrate the developed results through several numerical examples.</p>","PeriodicalId":55495,"journal":{"name":"Applied Stochastic Models in Business and Industry","volume":"40 5","pages":"1291-1312"},"PeriodicalIF":1.3,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140596402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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