International Journal of Applied Mathematics and Computer Science最新文献_第6页

A Holistic Study on the Use of Blockchain Technology in CPS and IoT Architectures Maintaining the CIA Triad in Data Communication 在CPS和物联网架构中使用区块链技术的整体研究维护数据通信中的CIA三元组

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0029

A. Bhattacharjya

{"title":"A Holistic Study on the Use of Blockchain Technology in CPS and IoT Architectures Maintaining the CIA Triad in Data Communication","authors":"A. Bhattacharjya","doi":"10.34768/amcs-2022-0029","DOIUrl":"https://doi.org/10.34768/amcs-2022-0029","url":null,"abstract":"Abstract Blockchain-based cyber-physical systems (CPSs) and the blockchain Internet of things (BIoT) are two major focuses of the modern technological revolution. Currently we have security attacks like distributed denial-of-service (DDoS), address resolution protocol (ARP) spoofing attacks, various phishing and configuration threats, network congestion, etc. on the existing CPS and IoT architectures. This study conducts a complete survey on the flaws of the present centralized IoT system’s peer-to-peer (P2P) communication and the CPS architecture’s machine-to-machine (M2M) communication. Both these architectures could use the inherent consensus algorithms and cryptographic advantages of blockchain technology. To show how blockchain technology can resolve the flaws of the existing CPS and IoT architectures while maintaining confidentiality, integrity, and availability (the CIA triad), we conduct a holistic survey here on this topic and discuss the research focus in the domain of the BIoT. Then we analyse the similarities and dissimilarities of blockchain technology in IoT and CPS architectures. Finally, it is well understood that one should explore whether blockchain technology will give advantages to CPS and IoT applications through a decision support system (DSS) with a relevant mathematical model, so here we provide the DSS with such a model for this purpose.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"17 1","pages":"403 - 413"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78732673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

An SFA–HMM Performance Evaluation Method Using State Difference Optimization for Running Gear Systems in High–Speed Trains 基于状态差优化的高速列车走行系统SFA-HMM性能评价方法

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0028

Chao Cheng, Meng Wang, Jiuhe Wang, Junjie Shao, Hongtian Chen

{"title":"An SFA–HMM Performance Evaluation Method Using State Difference Optimization for Running Gear Systems in High–Speed Trains","authors":"Chao Cheng, Meng Wang, Jiuhe Wang, Junjie Shao, Hongtian Chen","doi":"10.34768/amcs-2022-0028","DOIUrl":"https://doi.org/10.34768/amcs-2022-0028","url":null,"abstract":"Abstract The evaluation of system performance plays an increasingly important role in the reliability analysis of cyber-physical systems. Factors of external instability affect the evaluation results in complex systems. Taking the running gear in high-speed trains as an example, its complex operating environment is the most critical factor affecting the performance evaluation design. In order to optimize the evaluation while improving accuracy, this paper develops a performance evaluation method based on slow feature analysis and a hidden Markov model (SFA-HMM). The utilization of SFA can screen out the slowest features as HMM inputs, based on which a new HMM is established for performance evaluation of running gear systems. In addition to directly classical performance evaluation for running gear systems of high-speed trains, the slow feature statistic is proposed to detect the difference in the system state through test data, and then eliminate the error evaluation of the HMM in the stable state. In addition, indicator planning and status classification of the data are performed through historical information and expert knowledge. Finally, a case study of the running gear system in high-speed trains is discussed. After comparison, the result shows that the proposed method can enhance evaluation performance.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"108 1","pages":"389 - 402"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91064537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

RBF Based Quadrature on the Sphere 基于RBF的球面正交

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0034

M. Kindelan, P. González-Rodríguez, Diego Álvarez

引用次数: 0

Stochastic Models of the Slow/Fast Type of Atrioventricular Nodal Reentrant Tachycardia and Tachycardia with Conduction Aberration 慢/快型房室结折返性心动过速和伴传导畸变的心动过速的随机模型

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0031

B. Jackowska-Zduniak

{"title":"Stochastic Models of the Slow/Fast Type of Atrioventricular Nodal Reentrant Tachycardia and Tachycardia with Conduction Aberration","authors":"B. Jackowska-Zduniak","doi":"10.34768/amcs-2022-0031","DOIUrl":"https://doi.org/10.34768/amcs-2022-0031","url":null,"abstract":"Abstract Models are proposed to describe the heart’s action potential. A system of stochastic differential equations is used to recreate pathological behaviour in the heart such as atrioventricular nodal reentrant tachycardia (AVNRT) and also AVNRT with conduction aberration. Part of the population has abnormal accessory pathways: fast and slow. An additional pathway is not always induced, since the deterministic model is not proper due to a stochasticity in this process. Introduction of a stochastic term allows modelling a pre-excitation perturbation (such as unexpected excitation by premature contractions in atrium (PAC)) which triggers the mechanism of AVNRT. Also, a system of AVNRT with additional conduction aberration, which is a rare type of arrhythmia, is considered. The aim of this work is to propose a mathematical model superior to the deterministic one that recreates this disease better and allows understanding its mechanism and physical dependencies, which may help to propose a new therapy of AVNRT. Results are illustrated with numerical solutions.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"33 1","pages":"429 - 440"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84376990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Decentralized Multi–Agent Formation Control with Pole–Region Placement via Cone–Complementarity Linearization 基于锥互补线性化的极点区域分散多智能体编队控制

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0030

A. Gonzalez, A. Sala, L. Armesto

引用次数: 0

Application of Fuzzy Logic in a Secure Beacon–Based Guidance System for Public Transportation 模糊逻辑在安全信标引导系统中的应用

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0027

J. Molina-Gil, P. Caballero-Gil, A. Quesada-Arencibia, G. D. Blasio

{"title":"Application of Fuzzy Logic in a Secure Beacon–Based Guidance System for Public Transportation","authors":"J. Molina-Gil, P. Caballero-Gil, A. Quesada-Arencibia, G. D. Blasio","doi":"10.34768/amcs-2022-0027","DOIUrl":"https://doi.org/10.34768/amcs-2022-0027","url":null,"abstract":"Abstract Promoting the use of public transport is increasingly urgent in our society, both to reduce traffic congestion, air pollution and stress levels, and to ensure the high level of mobility demanded by citizens. The lack of continuous on-trip assistance for public transport users discourages many travellers. Thus, the main objective of this work is to design a personal digital travel companion for outdoor location and event detection based on Bluetooth Low Energy, which can be used for intelligent transport technology. After analysing the functional requirements, the proposal is implemented as a mobile application for beacon-based event detection. The system includes an algorithm aided by fuzzy logic to determine the action to be carried out by the user at all times, being able to distinguish between different possible events when more than one beacon is detected. To defend the scheme against possible attacks based on beacon forgery or user tracking, the proposal includes different forms of authentication for data sent from beacons and data sent from the mobile application. The results obtained in simulations show that the proposed system is a viable guidance solution for public transport, including energy saving as one of its main advantages.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"2 1","pages":"371 - 387"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85016940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving the LUT Count for Mealy FSMS with Transformation of Output Collections 利用输出集合的变换提高粉状FSMS的LUT计数

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0035

A. Barkalov, L. Titarenko, M. Mazurkiewicz

{"title":"Improving the LUT Count for Mealy FSMS with Transformation of Output Collections","authors":"A. Barkalov, L. Titarenko, M. Mazurkiewicz","doi":"10.34768/amcs-2022-0035","DOIUrl":"https://doi.org/10.34768/amcs-2022-0035","url":null,"abstract":"Abstract A method is proposed which aims at reducing the number of LUTs in the circuits of FPGA-based Mealy finite state machines (FSMs) with transformation of collections of outputs into state codes. The reduction is achieved due to the use of two-component state codes. Such an approach allows reducing the number of state variables compared with FSMs based on extended codes. There are exactly three levels of LUTs in the resulting FSM circuit. Each partial function is represented by a single-LUT circuit. The proposed method is illustrated with an example of synthesis. The experiments were conducted using standard benchmarks. They show that the proposed method produces FSM circuits with significantly smaller LUT counts compared with those produced by other investigated methods (Auto and One-hot of Vivado, JEDI, and transformation of output collection codes into extended state codes). The LUT count is decreased by, on average, from 9.86% to 59.64%. The improvement of the LUT count is accompanied by a slightly improved performance. The maximum operating frequency is increased, on average, from 2.74% to 12.93%. The advantages of the proposed method become more pronounced with increasing values of FSM inputs and state variables.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"47 1","pages":"479 - 494"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76305241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

ATiPreTA: AN Analytical Model for Time–Dependent Prediction of Terrorist Attacks 基于时间的恐怖袭击预测分析模型

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0036

O. Kebir, I. Nouaouri, Lilia Rejeb, L. B. Said

引用次数: 1

A Hybrid Approach of a Deep Learning Technique for Real–Time ECG Beat Detection 一种用于实时心电心跳检测的深度学习混合方法

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-09-01 DOI: 10.34768/amcs-2022-0033

K. K. Patro, A. J. Prakash, S. Samantray, Joanna Plawiak, R. Tadeusiewicz, Paweł Pławiak

{"title":"A Hybrid Approach of a Deep Learning Technique for Real–Time ECG Beat Detection","authors":"K. K. Patro, A. J. Prakash, S. Samantray, Joanna Plawiak, R. Tadeusiewicz, Paweł Pławiak","doi":"10.34768/amcs-2022-0033","DOIUrl":"https://doi.org/10.34768/amcs-2022-0033","url":null,"abstract":"Abstract This paper presents a new customized hybrid approach for early detection of cardiac abnormalities using an electrocardiogram (ECG). The ECG is a bioelectrical signal that helps monitor the heart’s electrical activity. It can provide health information about the normal and abnormal physiology of the heart. Early diagnosis of cardiac abnormalities is critical for cardiac patients to avoid stroke or sudden cardiac death. The main aim of this paper is to detect crucial beats that can damage the functioning of the heart. Initially, a modified Pan–Tompkins algorithm identifies the characteristic points, followed by heartbeat segmentation. Subsequently, a different hybrid deep convolutional neural network (CNN) is proposed to experiment on standard and real-time long-term ECG databases. This work successfully classifies several cardiac beat abnormalities such as supra-ventricular ectopic beats (SVE), ventricular beats (VE), intra-ventricular conduction disturbances beats (IVCD), and normal beats (N). The obtained classification results show a better accuracy of 99.28% with an F1score of 99.24% with the MIT–BIH database and a descent accuracy of 99.12% with the real-time acquired database.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"20 1","pages":"455 - 465"},"PeriodicalIF":1.9,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74060957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Reliability–Aware Zonotopic Tube–Based Model Predictive Control of a Drinking Water Network 基于可靠性感知分区管的饮水管网模型预测控制

IF 1.9 4区计算机科学

International Journal of Applied Mathematics and Computer Science Pub Date : 2022-06-01 DOI: 10.34768/amcs-2022-0015

Khoury Boutrous, F. Nejjari, V. Puig

{"title":"Reliability–Aware Zonotopic Tube–Based Model Predictive Control of a Drinking Water Network","authors":"Khoury Boutrous, F. Nejjari, V. Puig","doi":"10.34768/amcs-2022-0015","DOIUrl":"https://doi.org/10.34768/amcs-2022-0015","url":null,"abstract":"Abstract A robust economic model predictive control approach that takes into account the reliability of actuators in a network is presented for the control of a drinking water network in the presence of uncertainties in the forecasted demands required for the predictive control design. The uncertain forecasted demand on the nominal MPC may make the optimization process intractable or, to a lesser extent, degrade the controller performance. Thus, the uncertainty on demand is taken into account and considered unknown but bounded in a zonotopic set. Based on this uncertainty description, a robust MPC is formulated to ensure robust constraint satisfaction, performance, stability as well as recursive feasibility through the formulation of an online tube-based MPC and an accompanying appropriate terminal set. Reliability is then modelled based on Bayesian networks, such that the resulting nonlinear function accommodated in the optimization setup is presented in a pseudo-linear form by means of a linear parameter varying representation, mitigating any additional computational expense thanks to the formulation as a quadratic optimization problem. With the inclusion of a reliability index to the economic dominant cost of the MPC, the network users’ requirements are met whilst ensuring improved reliability, therefore decreasing short and long term operational costs for water utility operators. Capabilities of the designed controller are demonstrated with simulated scenarios on the Barcelona drinking water network.","PeriodicalId":50339,"journal":{"name":"International Journal of Applied Mathematics and Computer Science","volume":"9 1","pages":"197 - 211"},"PeriodicalIF":1.9,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89780752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1