Pub Date : 2023-09-07DOI: 10.37394/23203.2023.18.24
Vasilios Xezonakis, Efstratios Ntantis
This research paper studies a thermal power plant model with an Artificial Neural Network that contributes to the accuracy improvement of actual measurement data. Neural Networks process the paradigm of algebraic expressions, and their training occurs via a Feed-Forward Back Propagation algorithm implemented in a MATLAB environment. The applied training case in a thermal power plant in Paracha includes three different algorithms, the Levenberg-Marquadt, the Scaled Conjugate Gradient, and the Bayesian Regularization, considering less number of samples to achieve more reliable results. The outcome highlights Bayesian Regularization Networks’ superiority in accuracy and performance compared to Levenberg-Marquadt and the Scaled Conjugate Gradient. The regression analysis estimates the relationship between input-independent and output-dependent variables, forecasts the energetic data, and highlights the benefits of the Bayesian Regularization method in the energy sector.
{"title":"Modelling and Energy Optimization of a Thermal Power Plant Using a Multi-Layer Perception Regression Method","authors":"Vasilios Xezonakis, Efstratios Ntantis","doi":"10.37394/23203.2023.18.24","DOIUrl":"https://doi.org/10.37394/23203.2023.18.24","url":null,"abstract":"This research paper studies a thermal power plant model with an Artificial Neural Network that contributes to the accuracy improvement of actual measurement data. Neural Networks process the paradigm of algebraic expressions, and their training occurs via a Feed-Forward Back Propagation algorithm implemented in a MATLAB environment. The applied training case in a thermal power plant in Paracha includes three different algorithms, the Levenberg-Marquadt, the Scaled Conjugate Gradient, and the Bayesian Regularization, considering less number of samples to achieve more reliable results. The outcome highlights Bayesian Regularization Networks’ superiority in accuracy and performance compared to Levenberg-Marquadt and the Scaled Conjugate Gradient. The regression analysis estimates the relationship between input-independent and output-dependent variables, forecasts the energetic data, and highlights the benefits of the Bayesian Regularization method in the energy sector.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46666217","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}
In this study, a mathematical model of an automated control system for heat regulation in a building was developed. A method of mathematical modeling of the centralized heating control system based on mathematical models of distributed power systems and experimental studies has been developed, which allows for determining the parameters of the coolant when the outdoor temperature changes, qualitative regulation of heat in autonomous sources, quantitative regulation in automated individual heating devices, etc. The method makes it possible to study the interaction of an automated individual heating point to increase the efficiency of the management of distributed power systems of buildings. As a result of studying the controller created by the R2 control unit, for the PI controller, the calculated heat consumption of the building imperceptibly increases from 1.08502 kJ to 1.085888 kJ when an oscillatory transient occurs, and for the I controller, the calculated heat consumption of the building remains at the same level. The level, as for the PI controller, increases slightly during the oscillatory transition from 1.08456 GJ to 1.08535 GJ.
{"title":"A Mathematical Model of an Automated Control System for Heat Regulation in a Building","authors":"Farida Telgozhayeva, Muslum Arici, Murat Kunelbayev, Gulnur Tyulepberdinova, Zhanara Spabekova, Ainagul Berdygulova, Yeraly Shaken","doi":"10.37394/23203.2023.18.23","DOIUrl":"https://doi.org/10.37394/23203.2023.18.23","url":null,"abstract":"In this study, a mathematical model of an automated control system for heat regulation in a building was developed. A method of mathematical modeling of the centralized heating control system based on mathematical models of distributed power systems and experimental studies has been developed, which allows for determining the parameters of the coolant when the outdoor temperature changes, qualitative regulation of heat in autonomous sources, quantitative regulation in automated individual heating devices, etc. The method makes it possible to study the interaction of an automated individual heating point to increase the efficiency of the management of distributed power systems of buildings. As a result of studying the controller created by the R2 control unit, for the PI controller, the calculated heat consumption of the building imperceptibly increases from 1.08502 kJ to 1.085888 kJ when an oscillatory transient occurs, and for the I controller, the calculated heat consumption of the building remains at the same level. The level, as for the PI controller, increases slightly during the oscillatory transition from 1.08456 GJ to 1.08535 GJ.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47511050","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}
Pub Date : 2023-08-11DOI: 10.37394/23203.2023.18.22
Anastasia Sofroniou, Bhairavi Premnath
A study is conducted to obtain a deeper insight into the primary and subharmonic resonances of the swing equation. The primary resonance, which can result in increased oscillatory responses, voltage instability, and potential system collapse, happens when the external disturbance frequency coincides with the natural frequency of the system. Subharmonic resonance occurs when the disturbance frequency is an integer fraction of the natural frequency, leading to low-frequency oscillations and possible equipment damage. The purpose of this study is to provide an extension of the existing literature of the effects of primary resonance and further provide a thorough understanding of subharmonic resonance on the stability of a certain power system paradigm. Motivated by the rich nonlinear dynamical behaviour exhibited by this evergreen model, analytical and numerical techniques are employed to examine the underlying principles, creating an efficient control solution for this resonant-related problem. The main objective of this research is to provide a comprehensive understanding of the primary and subharmonic resonances considering the dynamical and bifurcational behaviour of the underlying swing equation, whereby both analytical and numerical techniques are employed, allowing for an identification of certain precursors to chaos that may lead and cater for the safe operation of practical problems.
{"title":"An Investigation into the Primary and Subharmonic Resonances of the Swing Equation","authors":"Anastasia Sofroniou, Bhairavi Premnath","doi":"10.37394/23203.2023.18.22","DOIUrl":"https://doi.org/10.37394/23203.2023.18.22","url":null,"abstract":"A study is conducted to obtain a deeper insight into the primary and subharmonic resonances of the swing equation. The primary resonance, which can result in increased oscillatory responses, voltage instability, and potential system collapse, happens when the external disturbance frequency coincides with the natural frequency of the system. Subharmonic resonance occurs when the disturbance frequency is an integer fraction of the natural frequency, leading to low-frequency oscillations and possible equipment damage. The purpose of this study is to provide an extension of the existing literature of the effects of primary resonance and further provide a thorough understanding of subharmonic resonance on the stability of a certain power system paradigm. Motivated by the rich nonlinear dynamical behaviour exhibited by this evergreen model, analytical and numerical techniques are employed to examine the underlying principles, creating an efficient control solution for this resonant-related problem. The main objective of this research is to provide a comprehensive understanding of the primary and subharmonic resonances considering the dynamical and bifurcational behaviour of the underlying swing equation, whereby both analytical and numerical techniques are employed, allowing for an identification of certain precursors to chaos that may lead and cater for the safe operation of practical problems.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42339987","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}
Pub Date : 2023-07-27DOI: 10.37394/23202.2023.22.69
Marwa Mohamed Ismaeel, W. A. Ahmood
The aim of the research, we extended the one-dimensional to multi-dimensional, we applied the homotopy perturbation and analysis methods to solve Volterra integral equations and to obtain approximate analytical solutions of systems of the second kind multi-dimensional Volterra integral equations. We proved the convergence of the homotopy analysis method (HAM). The HAM solutions contained an auxiliary parameter that provides a convenient way of controlling the convergence region of series solutions. It is shown that the solutions obtained by the homotopy-perturbation method (HPM) are only special cases of the HAM solutions. Several examples are given to illustrate the efficiency and implementation of the method. The results indicate that this method is efficient for the linear and non - linear models with the dissipative terms.
{"title":"Using Homotopy Perturbation and Analysis Methods for Solving Different-dimensions Fractional Analytical Equations","authors":"Marwa Mohamed Ismaeel, W. A. Ahmood","doi":"10.37394/23202.2023.22.69","DOIUrl":"https://doi.org/10.37394/23202.2023.22.69","url":null,"abstract":"The aim of the research, we extended the one-dimensional to multi-dimensional, we applied the homotopy perturbation and analysis methods to solve Volterra integral equations and to obtain approximate analytical solutions of systems of the second kind multi-dimensional Volterra integral equations. We proved the convergence of the homotopy analysis method (HAM). The HAM solutions contained an auxiliary parameter that provides a convenient way of controlling the convergence region of series solutions. It is shown that the solutions obtained by the homotopy-perturbation method (HPM) are only special cases of the HAM solutions. Several examples are given to illustrate the efficiency and implementation of the method. The results indicate that this method is efficient for the linear and non - linear models with the dissipative terms.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80411748","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}
Pub Date : 2023-07-19DOI: 10.37394/23203.2023.18.21
Nugzar Chedia, Marina Chkhartishvili
It is currently urgent to improve the technical characteristics and increase the efficiency of telecommunication networks because of the global problem of ensuring the reliable transmission, processing and protection of commercial information in telecommunication networks. The aim of this study is to assess the reliability indicators of telecommunication networks and analyse the level of their development. The aim was achieved through the methods that were used to assess the reliability of the entire network: the generalized method of analytical assessment of the telecommunication network reliability; connection-based metrics; scaling of telecommunication networks, and application of unified reliability indicators to routine control, operation and maintenance. As a result of the research, the indicators of telecommunication networks were studied with and without using connection-based metrics. As a result, the network metrics were also divided into distribution and generation/transmission reliability and telecommunication network metrics – into connection-, performance-, and condition-based metrics, which showed improvements in network performance and reliability. As a prospect for further research, studying and improving the telecommunication network reliability indicators is suggested.
{"title":"Study of the Telecommunication Networks Performance and Reliability Indicators","authors":"Nugzar Chedia, Marina Chkhartishvili","doi":"10.37394/23203.2023.18.21","DOIUrl":"https://doi.org/10.37394/23203.2023.18.21","url":null,"abstract":"It is currently urgent to improve the technical characteristics and increase the efficiency of telecommunication networks because of the global problem of ensuring the reliable transmission, processing and protection of commercial information in telecommunication networks. The aim of this study is to assess the reliability indicators of telecommunication networks and analyse the level of their development. The aim was achieved through the methods that were used to assess the reliability of the entire network: the generalized method of analytical assessment of the telecommunication network reliability; connection-based metrics; scaling of telecommunication networks, and application of unified reliability indicators to routine control, operation and maintenance. As a result of the research, the indicators of telecommunication networks were studied with and without using connection-based metrics. As a result, the network metrics were also divided into distribution and generation/transmission reliability and telecommunication network metrics – into connection-, performance-, and condition-based metrics, which showed improvements in network performance and reliability. As a prospect for further research, studying and improving the telecommunication network reliability indicators is suggested.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46129699","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}
Pub Date : 2023-07-19DOI: 10.37394/23203.2023.18.20
Fredy H. Martínez, Angelica Rendón, Fernando Martinez
The exploration of unknown environments can be beneficial for a variety of applications, such as inspection of industrial equipment, environmental monitoring, or search and rescue missions. In order to tackle this problem, swarm robotics has emerged as a promising approach due to its ability to leverage the collective behavior of a group of robots to explore an area efficiently. This paper proposes a swarmbased control algorithm for exploration and coverage of unknown environments. The algorithm utilizes shortrange distributed communication and sensing among agents, with no central unit, to coordinate the swarm’s navigation and search tasks. This sensing is prioritized in the outermost agents of the swarm to reduce processing and energy costs, and these positions can be rotated with other agents in the swarm. The formation rules that keep the system cohesive are simple and independent of the individual robot characteristics, enabling the use of heterogeneous agents. The performance of the proposed strategy is demonstrated through experiments in coverage and search tasks, and compared with other swarm strategies. The results show the effectiveness of the proposed algorithm for exploration and coverage of unknown environments. The research presented in this paper has the potential to contribute to the development of more efficient and effective swarmbased exploration and coverage strategies.
{"title":"A SwarmBased Flocking Control Algorithm for Exploration and Coverage of Unknown Environments","authors":"Fredy H. Martínez, Angelica Rendón, Fernando Martinez","doi":"10.37394/23203.2023.18.20","DOIUrl":"https://doi.org/10.37394/23203.2023.18.20","url":null,"abstract":"The exploration of unknown environments can be beneficial for a variety of applications, such as inspection of industrial equipment, environmental monitoring, or search and rescue missions. In order to tackle this problem, swarm robotics has emerged as a promising approach due to its ability to leverage the collective behavior of a group of robots to explore an area efficiently. This paper proposes a swarmbased control algorithm for exploration and coverage of unknown environments. The algorithm utilizes shortrange distributed communication and sensing among agents, with no central unit, to coordinate the swarm’s navigation and search tasks. This sensing is prioritized in the outermost agents of the swarm to reduce processing and energy costs, and these positions can be rotated with other agents in the swarm. The formation rules that keep the system cohesive are simple and independent of the individual robot characteristics, enabling the use of heterogeneous agents. The performance of the proposed strategy is demonstrated through experiments in coverage and search tasks, and compared with other swarm strategies. The results show the effectiveness of the proposed algorithm for exploration and coverage of unknown environments. The research presented in this paper has the potential to contribute to the development of more efficient and effective swarmbased exploration and coverage strategies.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46824033","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}
Pub Date : 2023-07-14DOI: 10.37394/23202.2023.22.68
Abiwodo Abiwodo, C. Wijaya, Umanto Umanto, A. Subroto
Banking institutions make an important contribution to improving economic conditions so that they remain conducive. This causes banks to play a role in the world of development and trade related to the provision of business capital or in fulfilling community needs. This study aims to describe the characteristics of bank resilience research data in various aspects/categories and determine the factors that influence the increase in bank resilience. The method used in this study is a systematic mapping study (SMS) to examine scientific publications produced from time to time, focus, locus, the most widely investigated types of research, as well as the most widely used research methods. The SMS procedure follows established empirical guidelines and the mapping data relies on Springer, SAGE, Emerald, Google Scholar, PubMed, and Scopus electronic databases. Based on the results of SMS on research in the field of organizational change, it is known that 84 studies meet the inclusion criteria. We classify 84 articles in the topic area by category of type of paper, method, focus, locus, and year of research publication as well as factors that can affect bank resilience.
银行机构为改善经济状况作出了重要贡献，使其保持有利地位。这使银行在与提供商业资本或满足社区需要有关的发展和贸易领域发挥作用。本研究旨在描述银行弹性研究数据在各个方面/类别的特征，并确定影响银行弹性增加的因素。本研究采用系统地图研究(SMS)的方法，对不时产生的科学出版物、焦点、轨迹、调查最广泛的研究类型以及最广泛使用的研究方法进行研究。SMS程序遵循既定的经验指导方针，地图数据依赖于Springer, SAGE, Emerald, Google Scholar, PubMed和Scopus电子数据库。根据SMS在组织变革领域的研究结果，我们知道有84项研究符合纳入标准。我们根据论文类型、方法、重点、地点、研究发表年份以及可能影响银行弹性的因素对主题领域的84篇文章进行了分类。
{"title":"Systematic Mapping Study of Bank Resilience","authors":"Abiwodo Abiwodo, C. Wijaya, Umanto Umanto, A. Subroto","doi":"10.37394/23202.2023.22.68","DOIUrl":"https://doi.org/10.37394/23202.2023.22.68","url":null,"abstract":"Banking institutions make an important contribution to improving economic conditions so that they remain conducive. This causes banks to play a role in the world of development and trade related to the provision of business capital or in fulfilling community needs. This study aims to describe the characteristics of bank resilience research data in various aspects/categories and determine the factors that influence the increase in bank resilience. The method used in this study is a systematic mapping study (SMS) to examine scientific publications produced from time to time, focus, locus, the most widely investigated types of research, as well as the most widely used research methods. The SMS procedure follows established empirical guidelines and the mapping data relies on Springer, SAGE, Emerald, Google Scholar, PubMed, and Scopus electronic databases. Based on the results of SMS on research in the field of organizational change, it is known that 84 studies meet the inclusion criteria. We classify 84 articles in the topic area by category of type of paper, method, focus, locus, and year of research publication as well as factors that can affect bank resilience.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89875024","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}
Pub Date : 2023-07-06DOI: 10.37394/23203.2023.18.18
C. Rattanakul, Y. Lenbury
Considerable amount of research effort has been concentrated on modelling and predicting the progress of coronavirus infection, its impacts, and the ramifications of various measures taken by affected nations, such as social distancing, vaccination, and provision of long-term health care. More recently, medical doctors have become aware of an unexpected coronavirus complication that can emerge in a short period of time after the initial COVID-19 infection, or sometimes several months afterward. NHS research confirmed that the risk of death is increased significantly in coronavirus patients with diabetes. Our main purpose is to obtain a better understanding of the impacts of physical exercise on the glucose-insulin dynamics in patients with diabetes-COVID-19 comorbidity. To control diabetes, it is important to keep track, with the aid of an appropriate model, of one’s blood sugar levels and to know what levels are too high after a meal, while physical activity can lower your blood sugar by making your body more sensitive to insulin. Here, we, therefore, propose and analyse a model of the glucose-insulin control system, comorbidity of coronavirus infection, that incorporates variations in blood sugar due to food intake as well as the role that exercising can take in keeping plasma glucose at a suitable level. The solutions of the model are shown to be bounded and persistent under suitable conditions on the system parameters. The stability and periodicity of the system are also investigated. The delineating conditions on pertinent physical parameters that allow us to obtain the desired outcome are interpreted and discussed.
{"title":"Control of Blood Sugar in Diabetes and COVID-19 Comorbidity with Physical Exercise: Modelling by Impulsive System of Differential Equations","authors":"C. Rattanakul, Y. Lenbury","doi":"10.37394/23203.2023.18.18","DOIUrl":"https://doi.org/10.37394/23203.2023.18.18","url":null,"abstract":"Considerable amount of research effort has been concentrated on modelling and predicting the progress of coronavirus infection, its impacts, and the ramifications of various measures taken by affected nations, such as social distancing, vaccination, and provision of long-term health care. More recently, medical doctors have become aware of an unexpected coronavirus complication that can emerge in a short period of time after the initial COVID-19 infection, or sometimes several months afterward. NHS research confirmed that the risk of death is increased significantly in coronavirus patients with diabetes. Our main purpose is to obtain a better understanding of the impacts of physical exercise on the glucose-insulin dynamics in patients with diabetes-COVID-19 comorbidity. To control diabetes, it is important to keep track, with the aid of an appropriate model, of one’s blood sugar levels and to know what levels are too high after a meal, while physical activity can lower your blood sugar by making your body more sensitive to insulin. Here, we, therefore, propose and analyse a model of the glucose-insulin control system, comorbidity of coronavirus infection, that incorporates variations in blood sugar due to food intake as well as the role that exercising can take in keeping plasma glucose at a suitable level. The solutions of the model are shown to be bounded and persistent under suitable conditions on the system parameters. The stability and periodicity of the system are also investigated. The delineating conditions on pertinent physical parameters that allow us to obtain the desired outcome are interpreted and discussed.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44652034","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}
Pub Date : 2023-07-06DOI: 10.37394/23203.2023.18.19
K. Stoilova, T. Stoilov
The main control tool for traffic management in urban areas is traffic light settings. The goal is to decrease the queue lengths at intersections. Usually, the duration of the green light of the traffic light is used for control. The control approach is based on the so-called “store-and-forward” model. However, this model does not reflect the stochastic nature of traffic dynamics. This study presents a model with some probabilistic conditions approximating real traffic behavior. An additional contribution concerns the definition of a bi-level optimization model that simultaneously optimizes the green light and traffic light cycle duration of an urban network of four intersections. Three traffic management optimization problems are defined and solved. Their solutions are graphically illustrated and commented on. Bi-level optimization outperforms by giving lower values of queue lengths compared to classical and stochastic nonlinear optimization problems in the considered network.
{"title":"Optimization Models for Urban Traffic Management","authors":"K. Stoilova, T. Stoilov","doi":"10.37394/23203.2023.18.19","DOIUrl":"https://doi.org/10.37394/23203.2023.18.19","url":null,"abstract":"The main control tool for traffic management in urban areas is traffic light settings. The goal is to decrease the queue lengths at intersections. Usually, the duration of the green light of the traffic light is used for control. The control approach is based on the so-called “store-and-forward” model. However, this model does not reflect the stochastic nature of traffic dynamics. This study presents a model with some probabilistic conditions approximating real traffic behavior. An additional contribution concerns the definition of a bi-level optimization model that simultaneously optimizes the green light and traffic light cycle duration of an urban network of four intersections. Three traffic management optimization problems are defined and solved. Their solutions are graphically illustrated and commented on. Bi-level optimization outperforms by giving lower values of queue lengths compared to classical and stochastic nonlinear optimization problems in the considered network.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45994552","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}
Pub Date : 2023-06-28DOI: 10.37394/23202.2023.22.67
Atul Kachare, M. Kalla, Ashutosh Gupta
Presented automated visual question-answer system generates graphics-based question-answer pairs. The system consists of the Visual Query Generation (VQG) and Visual Question Answer (VQA) modules. VQG generates questions based on visual cues, and VQA provides matching answers to the VQG modules. VQG system generates questions using LSTM and VGG19 model, training parameters, and predicting words with the highest probability for output. VQA uses VGG-19 convolutional neural network for image encoding, embedding, and multilayer perceptron for high-quality responses. The proposed system reduces the need for human annotation and thus supports the traditional education sector by significantly reducing the human intervention required to generate text queries. The system can be used in interactive interfaces to help young children learn.
{"title":"Visual Question Generation Answering (VQG-VQA) using Machine Learning Models","authors":"Atul Kachare, M. Kalla, Ashutosh Gupta","doi":"10.37394/23202.2023.22.67","DOIUrl":"https://doi.org/10.37394/23202.2023.22.67","url":null,"abstract":"Presented automated visual question-answer system generates graphics-based question-answer pairs. The system consists of the Visual Query Generation (VQG) and Visual Question Answer (VQA) modules. VQG generates questions based on visual cues, and VQA provides matching answers to the VQG modules. VQG system generates questions using LSTM and VGG19 model, training parameters, and predicting words with the highest probability for output. VQA uses VGG-19 convolutional neural network for image encoding, embedding, and multilayer perceptron for high-quality responses. The proposed system reduces the need for human annotation and thus supports the traditional education sector by significantly reducing the human intervention required to generate text queries. The system can be used in interactive interfaces to help young children learn.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79847255","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}
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