Pub Date : 2023-05-22DOI: 10.37394/23202.2023.22.48
O. Ņikiforova, Vitaly M. Zabiniako, Pavels Garkalns, Jurijs Kornienko, Vladimirs Nikulsins, A. Romānovs
Remote (or hybrid remote) work is currently becoming more and more trending. This happened in recent years, driven by technological advancements and the global COVID-19 pandemic. This model of work offers immense opportunities for employers and employees, such as increased flexibility, improved work-life balance, and reduced commute time. However, the shift to remote work also comes with its own set of challenges and complexities. The paper describes the results of the research, which specifies data for the approbation of the method for calibrating the efficiency of remotely working employees and observing the dynamics of work productivity in an experimental environment developed during this research. The method offered for efficiency calibration supposes to use data regarding workers’ activities according to business domain.
{"title":"Monitoring and Calibrating the Efficiency of the Remote and Hybrid Remote Work","authors":"O. Ņikiforova, Vitaly M. Zabiniako, Pavels Garkalns, Jurijs Kornienko, Vladimirs Nikulsins, A. Romānovs","doi":"10.37394/23202.2023.22.48","DOIUrl":"https://doi.org/10.37394/23202.2023.22.48","url":null,"abstract":"Remote (or hybrid remote) work is currently becoming more and more trending. This happened in recent years, driven by technological advancements and the global COVID-19 pandemic. This model of work offers immense opportunities for employers and employees, such as increased flexibility, improved work-life balance, and reduced commute time. However, the shift to remote work also comes with its own set of challenges and complexities. The paper describes the results of the research, which specifies data for the approbation of the method for calibrating the efficiency of remotely working employees and observing the dynamics of work productivity in an experimental environment developed during this research. The method offered for efficiency calibration supposes to use data regarding workers’ activities according to business domain.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"96 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86716712","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 : 2023-05-22DOI: 10.37394/23202.2023.22.50
Rias Tusianah, Sudjarwo Sudjarwo, C. Sutarsyah, E. Agustina, B. Rahman
This article aims to describe the influence of servant and transformational leadership on teacher work productivity and the role of mediating conflict resolution. There is a lot of research on leadership but not much research on how leadership handles conflict. Several research studies have investigated how leaders respond to conflict and the most common conflict management. However, no research is available to determine public preferences for conflict resolution options. The application of transformational leadership is known for its toughness and has been widely discussed. However, there is a phenomenon where school principals experience a decline and schools experience many problems. One of the factors inhibiting school progress is conflict. The author presents how to manage a school or organization in conflict settings by offering a servant leadership style. These matters are discussed in this article. This study used a quantitative survey design with 300 high school teachers as respondents to rate the leadership of school principals from 15 districts in Lampung Province. The results of Amos 23 calculations state that servant leadership has a positive effect on handling conflict (87.5%) and on teacher’s work productivity (37, 4%), while transformational leadership has a positive effect on handling conflict (8.7%) and negative effect on teacher work productivity (-68.8%). The research concludes that (1) servant leadership is a good predictor of teacher work productivity and a solution for conflict resolution in schools; (2) when there is conflict, transformational leadership is not a solution; (3) conflict handling is directly proportional to teacher work productivity; and (4) conflict handling becomes a good mediator for servant leadership and transformational leadership for teacher work productivity.
{"title":"Does Transformational Leadership Still Run Effectively in A Conflict Setting?","authors":"Rias Tusianah, Sudjarwo Sudjarwo, C. Sutarsyah, E. Agustina, B. Rahman","doi":"10.37394/23202.2023.22.50","DOIUrl":"https://doi.org/10.37394/23202.2023.22.50","url":null,"abstract":"This article aims to describe the influence of servant and transformational leadership on teacher work productivity and the role of mediating conflict resolution. There is a lot of research on leadership but not much research on how leadership handles conflict. Several research studies have investigated how leaders respond to conflict and the most common conflict management. However, no research is available to determine public preferences for conflict resolution options. The application of transformational leadership is known for its toughness and has been widely discussed. However, there is a phenomenon where school principals experience a decline and schools experience many problems. One of the factors inhibiting school progress is conflict. The author presents how to manage a school or organization in conflict settings by offering a servant leadership style. These matters are discussed in this article. This study used a quantitative survey design with 300 high school teachers as respondents to rate the leadership of school principals from 15 districts in Lampung Province. The results of Amos 23 calculations state that servant leadership has a positive effect on handling conflict (87.5%) and on teacher’s work productivity (37, 4%), while transformational leadership has a positive effect on handling conflict (8.7%) and negative effect on teacher work productivity (-68.8%). The research concludes that (1) servant leadership is a good predictor of teacher work productivity and a solution for conflict resolution in schools; (2) when there is conflict, transformational leadership is not a solution; (3) conflict handling is directly proportional to teacher work productivity; and (4) conflict handling becomes a good mediator for servant leadership and transformational leadership for teacher work productivity.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90860314","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 : 2023-05-19DOI: 10.37394/23203.2023.18.14
Ricardo Yauri, Einer Campos, Renzo Yalico, Vanessa Gamero
Currently, the damages caused by the stalking of birds in industry and agriculture are of great consideration, because they adapt to city environments in search of food and lose their fear, creating threats and taking advantage of the human presence, benefiting from food and waste, causing diseases and great economic losses. Therefore, the objective of this paper is to design a repellent system that allows birds to keep away from the facilities of companies and homes. There are various methods to repel birds using traditional and technological methods, such as the use of temperature or distance sensors, microcontrollers, and sirens. Therefore, this paper describes the development of the device to keep birds away. The design of the printed circuit board, implementation of the control algorithm for the system, the evaluation of the system through simulation, and the design and development of the casing for its integration are shown. Finally, a functional prototype of the repelling device is shown, to detect the presence of the bird and immediately emit a sound that scares it away, using the algorithm integrated with the electronic system.
{"title":"Development of an Electronic Bird Repellent System using Sound Emission","authors":"Ricardo Yauri, Einer Campos, Renzo Yalico, Vanessa Gamero","doi":"10.37394/23203.2023.18.14","DOIUrl":"https://doi.org/10.37394/23203.2023.18.14","url":null,"abstract":"Currently, the damages caused by the stalking of birds in industry and agriculture are of great consideration, because they adapt to city environments in search of food and lose their fear, creating threats and taking advantage of the human presence, benefiting from food and waste, causing diseases and great economic losses. Therefore, the objective of this paper is to design a repellent system that allows birds to keep away from the facilities of companies and homes. There are various methods to repel birds using traditional and technological methods, such as the use of temperature or distance sensors, microcontrollers, and sirens. Therefore, this paper describes the development of the device to keep birds away. The design of the printed circuit board, implementation of the control algorithm for the system, the evaluation of the system through simulation, and the design and development of the casing for its integration are shown. Finally, a functional prototype of the repelling device is shown, to detect the presence of the bird and immediately emit a sound that scares it away, using the algorithm integrated with the electronic system.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45598333","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 : 2023-05-19DOI: 10.37394/23202.2023.22.47
Somsri Banditvilai, Yuwadee Klomwises
This research aimed to study forecasting models for Thailand’s electrical appliances export values. Thailand’s monthly electrical appliances export values were gathered from the Information Technology and Communication Center, Ministry of Commerce, from January 2006 to November 2022. The data from January 2006 to December 2021 were used to construct and select the forecasting models, and the remaining were used for measuring the model’s accuracy. Since the electrical appliances export values showed trends and seasonal variation, the researcher selected the Holt-Winters method with various initial settings, the Box-Jenkins method, and Long Short-Term Memory Neural Networks (LSTM) for constructing models. The forecasting models were chosen by minimum Root Mean Square Error (RMSE) as a criterion. Mean Absolute Percentage Error (MAPE) was employed to measure the accuracy of the forecasting model. The study revealed that the Box-Jenkins model gave the appropriate forecasting model for Thailand’s electrical appliances export values and gained a MAPE of 8.0%.
{"title":"Forecasting Models for Thailand’s Electrical Appliances Export Values","authors":"Somsri Banditvilai, Yuwadee Klomwises","doi":"10.37394/23202.2023.22.47","DOIUrl":"https://doi.org/10.37394/23202.2023.22.47","url":null,"abstract":"This research aimed to study forecasting models for Thailand’s electrical appliances export values. Thailand’s monthly electrical appliances export values were gathered from the Information Technology and Communication Center, Ministry of Commerce, from January 2006 to November 2022. The data from January 2006 to December 2021 were used to construct and select the forecasting models, and the remaining were used for measuring the model’s accuracy. Since the electrical appliances export values showed trends and seasonal variation, the researcher selected the Holt-Winters method with various initial settings, the Box-Jenkins method, and Long Short-Term Memory Neural Networks (LSTM) for constructing models. The forecasting models were chosen by minimum Root Mean Square Error (RMSE) as a criterion. Mean Absolute Percentage Error (MAPE) was employed to measure the accuracy of the forecasting model. The study revealed that the Box-Jenkins model gave the appropriate forecasting model for Thailand’s electrical appliances export values and gained a MAPE of 8.0%.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79887425","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 : 2023-05-16DOI: 10.37394/23202.2023.22.45
Youwen Wang, M. Vasilyeva, S. Stepanov, Alexey L. Sadovski
The interaction of species in an ecological community can be described by coupled system partial differential equations. To analyze the problem numerically, we construct a discrete system using finite volume approximation by space with semi-implicit time approximation to decouple a system. We first simulate the converges of the system to the final equilibrium state for given parameters (reproductive rate, competition rate, and diffusion rate), boundaries, and initial conditions of population density. Then, we apply catastrophic events on a given geographic position with given catastrophic sizes to calculate the restoration time and final population densities for the system. After that, we investigate the impact of the parameters on the equilibrium population density and restoration time after catastrophe by gradually releasing the hold of different parameters. Finally, we generate data sets by solutions of a two-species competition model with random parameters and perform factor analysis to determine the main factors that affect the restoration time and final population density after catastrophic events.
{"title":"Numerical Investigation and Factor Analysis of Two-Species Spatial-Temporal Competition System after Catastrophic Events","authors":"Youwen Wang, M. Vasilyeva, S. Stepanov, Alexey L. Sadovski","doi":"10.37394/23202.2023.22.45","DOIUrl":"https://doi.org/10.37394/23202.2023.22.45","url":null,"abstract":"The interaction of species in an ecological community can be described by coupled system partial differential equations. To analyze the problem numerically, we construct a discrete system using finite volume approximation by space with semi-implicit time approximation to decouple a system. We first simulate the converges of the system to the final equilibrium state for given parameters (reproductive rate, competition rate, and diffusion rate), boundaries, and initial conditions of population density. Then, we apply catastrophic events on a given geographic position with given catastrophic sizes to calculate the restoration time and final population densities for the system. After that, we investigate the impact of the parameters on the equilibrium population density and restoration time after catastrophe by gradually releasing the hold of different parameters. Finally, we generate data sets by solutions of a two-species competition model with random parameters and perform factor analysis to determine the main factors that affect the restoration time and final population density after catastrophic events.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81784854","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 : 2023-05-16DOI: 10.37394/23202.2023.22.46
Agustina Dwianti, Sheren Aurelia Limin, M. Ichsan, Diena Dwidienawati, Maharani Syahratu Kertapati, Olinda Calista Yetri, Rafahana Ansiklia Kirana, Adji Pradana, R. Aditya
In the telecommunications and Information Technology (IT) sectors, Project Management Office (PMO) practices in Indonesia are seldom applied even though PMO has an essential role for companies as a productivity tool and to overcome existing changes in the business world. This study aimed to validate five PMO framework competencies and whether telecommunication sectors have applied these competencies. This study uses in-depth interviews and structured questionnaires to obtain robust validation data from expert PMO Managers. The data was obtained by interviewing five PMO expert respondents from PMOPI (Project Management Professional Indonesia). The raw data were analyzed using NVivo 12 by four certified expert coders. This study found that almost all PMO competencies were applied in the telecommunications industry, with significant results. This result was validated with an inter-rater percentage of 95.31%, indicating that the analyzed data had high accuracy. The business mainframe was the most utilized competency among the PMOs in the telecommunications industry, with 29.13% of findings. The occurrence percentages of each dimension with technical and professional specialists are as follows: 14.17%, effective intersocial competence is 12.60%, organizational stewardship is 9.45%, the business mainframe is 29.13%, and effective personal competence is 3.15%. This study provides the knowledge and skills required for successful performance to be demonstrated as a competent PMO manager.
{"title":"Project Management Office Manager's Competencies in Telecommunication Industries: A Case Study in Indonesia","authors":"Agustina Dwianti, Sheren Aurelia Limin, M. Ichsan, Diena Dwidienawati, Maharani Syahratu Kertapati, Olinda Calista Yetri, Rafahana Ansiklia Kirana, Adji Pradana, R. Aditya","doi":"10.37394/23202.2023.22.46","DOIUrl":"https://doi.org/10.37394/23202.2023.22.46","url":null,"abstract":"In the telecommunications and Information Technology (IT) sectors, Project Management Office (PMO) practices in Indonesia are seldom applied even though PMO has an essential role for companies as a productivity tool and to overcome existing changes in the business world. This study aimed to validate five PMO framework competencies and whether telecommunication sectors have applied these competencies. This study uses in-depth interviews and structured questionnaires to obtain robust validation data from expert PMO Managers. The data was obtained by interviewing five PMO expert respondents from PMOPI (Project Management Professional Indonesia). The raw data were analyzed using NVivo 12 by four certified expert coders. This study found that almost all PMO competencies were applied in the telecommunications industry, with significant results. This result was validated with an inter-rater percentage of 95.31%, indicating that the analyzed data had high accuracy. The business mainframe was the most utilized competency among the PMOs in the telecommunications industry, with 29.13% of findings. The occurrence percentages of each dimension with technical and professional specialists are as follows: 14.17%, effective intersocial competence is 12.60%, organizational stewardship is 9.45%, the business mainframe is 29.13%, and effective personal competence is 3.15%. This study provides the knowledge and skills required for successful performance to be demonstrated as a competent PMO manager.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81403564","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 : 2023-05-12DOI: 10.37394/23202.2023.22.44
Zhaoting Liu, X. Zhuang, N. Mastorakis
A new computational method of unvoiced and voiced speech segmentation is proposed from the perspective of local linear manifold analysis of speech signals. It is based on the estimation of the dimension of short-time linear subspace. The subspace dimensional characteristics of the single phoneme signal are studied. The local signal vector set is analyzed by using the PCA algorithm to estimate the dimension of the data matrix formed by framing. The local PCA is used to analyze the speech signal to achieve the segmentation of unvoiced and voiced pronunciation. Simulation experiments prove the effectiveness of the proposed method.
{"title":"Speech Segmentation Based on the Computation of Local Signal Manifold Dimension","authors":"Zhaoting Liu, X. Zhuang, N. Mastorakis","doi":"10.37394/23202.2023.22.44","DOIUrl":"https://doi.org/10.37394/23202.2023.22.44","url":null,"abstract":"A new computational method of unvoiced and voiced speech segmentation is proposed from the perspective of local linear manifold analysis of speech signals. It is based on the estimation of the dimension of short-time linear subspace. The subspace dimensional characteristics of the single phoneme signal are studied. The local signal vector set is analyzed by using the PCA algorithm to estimate the dimension of the data matrix formed by framing. The local PCA is used to analyze the speech signal to achieve the segmentation of unvoiced and voiced pronunciation. Simulation experiments prove the effectiveness of the proposed method.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78298594","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 : 2023-05-10DOI: 10.37394/23203.2023.18.12
E. Shehata, M. Y. William, A. Hassan, K. Ibrahim
The Concise Semi-Active Ankle Prosthesis is developed and controlled in this paper. Modern ankle prostheses are devices that exchange the absent limbs, making it possible for amputees to run again. Utilizing both parallel and series spring systems, the compact semi-active ankle prosthetic is created. The leaf series springs, parallel springs, and a cam make up the ankle prosthesis's compact, semi-active model. To minimize torque and power consumption as much as possible, the parallel and series springs must work as a nonlinear system. The concise semi-active ankle prosthetic was modeled using the CADCAM software. ANSYS was employed to implement a finite element analysis of the model. Static structure simulation is carried out with a loading force of 1500 N representing the personal weight. The model is imported into MATLAB/Simulink to be controlled after being run via ADAMS for dynamic analysis. The performance of the model with control is extremely close to that of the non-amputee ankle, according to simulation data. To test this model, the concise semi-active ankle prosthetic is manufactured as is modeled using the CAD-CAM program. The control system consists of a DC motor, Arduino uno, Hbridge, encoder, and current sensor. The motion of the compact semi-active ankle prosthetic is extremely comparable to the motion of the non-amputee, according to the simulation and testing results.
{"title":"Development and Control of Concise Semi-Active Ankle Prosthesis","authors":"E. Shehata, M. Y. William, A. Hassan, K. Ibrahim","doi":"10.37394/23203.2023.18.12","DOIUrl":"https://doi.org/10.37394/23203.2023.18.12","url":null,"abstract":"The Concise Semi-Active Ankle Prosthesis is developed and controlled in this paper. Modern ankle prostheses are devices that exchange the absent limbs, making it possible for amputees to run again. Utilizing both parallel and series spring systems, the compact semi-active ankle prosthetic is created. The leaf series springs, parallel springs, and a cam make up the ankle prosthesis's compact, semi-active model. To minimize torque and power consumption as much as possible, the parallel and series springs must work as a nonlinear system. The concise semi-active ankle prosthetic was modeled using the CADCAM software. ANSYS was employed to implement a finite element analysis of the model. Static structure simulation is carried out with a loading force of 1500 N representing the personal weight. The model is imported into MATLAB/Simulink to be controlled after being run via ADAMS for dynamic analysis. The performance of the model with control is extremely close to that of the non-amputee ankle, according to simulation data. To test this model, the concise semi-active ankle prosthetic is manufactured as is modeled using the CAD-CAM program. The control system consists of a DC motor, Arduino uno, Hbridge, encoder, and current sensor. The motion of the compact semi-active ankle prosthetic is extremely comparable to the motion of the non-amputee, according to the simulation and testing results.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47456448","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 : 2023-05-10DOI: 10.37394/23203.2023.18.13
Najwan Osman-Ali, J. Mohamad-Saleh
The grasshopper optimization algorithm (GOA), inspired by the behavior of grasshopper swarms, has proven efficient in solving globally constrained optimization problems. However, the original GOA exhibits some shortcomings in that its original linear convergence parameter causes the exploration and exploitation processes to be unbalanced, leading to a slow convergence speed and a tendency to fall into a local optimum trap. This study proposes an adaptive average GOA (AAGOA) with a nonlinear convergence parameter that can improve optimization performance by overcoming the shortcomings of the original GOA. To evaluate the optimization capability of the proposed AAGOA, the algorithm was tested on the CEC2021 benchmark set, and its performance was compared to that of the original GOA. According to the analysis of the results, AAGOA is ranked first in the Friedman ranking test and can produce better optimization results compared to its counterparts.
{"title":"An Adaptive Average Grasshopper Optimization Algorithm for Solving Numerical Optimization Problems","authors":"Najwan Osman-Ali, J. Mohamad-Saleh","doi":"10.37394/23203.2023.18.13","DOIUrl":"https://doi.org/10.37394/23203.2023.18.13","url":null,"abstract":"The grasshopper optimization algorithm (GOA), inspired by the behavior of grasshopper swarms, has proven efficient in solving globally constrained optimization problems. However, the original GOA exhibits some shortcomings in that its original linear convergence parameter causes the exploration and exploitation processes to be unbalanced, leading to a slow convergence speed and a tendency to fall into a local optimum trap. This study proposes an adaptive average GOA (AAGOA) with a nonlinear convergence parameter that can improve optimization performance by overcoming the shortcomings of the original GOA. To evaluate the optimization capability of the proposed AAGOA, the algorithm was tested on the CEC2021 benchmark set, and its performance was compared to that of the original GOA. According to the analysis of the results, AAGOA is ranked first in the Friedman ranking test and can produce better optimization results compared to its counterparts.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46014344","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 : 2023-05-04DOI: 10.37394/23203.2023.18.11
Bohumil Brtnik
Certain biquad filters structures are characterized by a reduction of the attenuation at higher frequencies, caused by the finite value of the output resistance of the operational amplifier. In this paper, the design of the combined BP filter without the described decreasing is discussed for which one possible solution is to replace one of the biquads with another biquad that does not have this property. The result is a combined filter from different structures. The methodology to design a combined BP filter without the described decreasing is described in detail with the parameters of such biquads. The results of the proposed numerical procedure are verified by computer simulation, for this purpose a SPICE-like program MC-10 is used.
{"title":"Design of a Combined Filter to Reduce the Attenuation Decline in Magnitude Response","authors":"Bohumil Brtnik","doi":"10.37394/23203.2023.18.11","DOIUrl":"https://doi.org/10.37394/23203.2023.18.11","url":null,"abstract":"Certain biquad filters structures are characterized by a reduction of the attenuation at higher frequencies, caused by the finite value of the output resistance of the operational amplifier. In this paper, the design of the combined BP filter without the described decreasing is discussed for which one possible solution is to replace one of the biquads with another biquad that does not have this property. The result is a combined filter from different structures. The methodology to design a combined BP filter without the described decreasing is described in detail with the parameters of such biquads. The results of the proposed numerical procedure are verified by computer simulation, for this purpose a SPICE-like program MC-10 is used.","PeriodicalId":39422,"journal":{"name":"WSEAS Transactions on Systems and Control","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46274290","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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