Pub Date : 2016-10-19DOI: 10.1109/SISY.2016.7601476
G. Eigner, Péter Pausits, L. Kovács
The purpose of this study is to introduce a novel ”completed” LPV controller and observer design approach for control of particular class of nonlinear systems. The developed tools allow to use classical linear controller design theorems via LPV framework without the advanced Linear Matrix Inequality (LMI) theorems. The developed method combines the classical state feedback theorems and a supplementary controller and observer structure which basis is the special properties of the parameter space of the linear parameter varying (LPV) system. The main benefit of the proposed method is that the controller design does not require highly advanced mathematical tools and high computational capacity. We have proven the usability of the method in case of a highly nonlinear compartmental model. The results have shown that the completed LPV controller is able to handle the system with good performance.
{"title":"A novel completed LPV controller and observer scheme in order to control nonlinear compartmental systems","authors":"G. Eigner, Péter Pausits, L. Kovács","doi":"10.1109/SISY.2016.7601476","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601476","url":null,"abstract":"The purpose of this study is to introduce a novel ”completed” LPV controller and observer design approach for control of particular class of nonlinear systems. The developed tools allow to use classical linear controller design theorems via LPV framework without the advanced Linear Matrix Inequality (LMI) theorems. The developed method combines the classical state feedback theorems and a supplementary controller and observer structure which basis is the special properties of the parameter space of the linear parameter varying (LPV) system. The main benefit of the proposed method is that the controller design does not require highly advanced mathematical tools and high computational capacity. We have proven the usability of the method in case of a highly nonlinear compartmental model. The results have shown that the completed LPV controller is able to handle the system with good performance.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116517574","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 : 2016-10-19DOI: 10.1109/SISY.2016.7601483
Mirjana Strboja, E. Pap, B. Mihailovic
In this paper the notion of the bipolar pseudo-integral is introduced. This new type of integral is based on bi-capacities, belonging to the class of set functions which are a generalization of the classical signed measure. The discrete bipolar pseudo-integral is defined and its main properties are considered.
{"title":"Discrete bipolar pseudo-integral","authors":"Mirjana Strboja, E. Pap, B. Mihailovic","doi":"10.1109/SISY.2016.7601483","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601483","url":null,"abstract":"In this paper the notion of the bipolar pseudo-integral is introduced. This new type of integral is based on bi-capacities, belonging to the class of set functions which are a generalization of the classical signed measure. The discrete bipolar pseudo-integral is defined and its main properties are considered.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126845750","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601511
F. Hegyesi, Krisztina Nemethy, A. Szakál, J. Gáti, G. Kártyás
People in their 30s-40s are already used to changes and they are open for retraining in order to be more market able. We are not introducing anything new by saying that in today sigh demanding jobs, the schools are not only providing the knowledge necessary to be able to carry out a particular jib, but schools are also responsible for developing skills which will help the students to face and solve issues on a daily basis as well as prepare students for independent learning. Could we call Moodle courses an independent learning facilitators? The answer is not clear, the courses are designed on a teaching and learning basis, the curriculum is chosen and planned within a given structure, however the teacher is not physically present for the learning process. Students do not receive immediate feedback, and in many occasion's students have to do their own research in order to find the answers they are looking for. Our examination was the learning process happening in the on-line collaborative learning environment. We have analyzed the last four semesters course activity. Our goal is to examine the Moodle LMS in the context of the communication in K-MOOC online courses to detect and characterize the student community activity, participation, explore the operation mechanism of this knowledge community.
{"title":"Human interactions in the context of K-MOOC, Óbuda University courses","authors":"F. Hegyesi, Krisztina Nemethy, A. Szakál, J. Gáti, G. Kártyás","doi":"10.1109/SISY.2016.7601511","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601511","url":null,"abstract":"People in their 30s-40s are already used to changes and they are open for retraining in order to be more market able. We are not introducing anything new by saying that in today sigh demanding jobs, the schools are not only providing the knowledge necessary to be able to carry out a particular jib, but schools are also responsible for developing skills which will help the students to face and solve issues on a daily basis as well as prepare students for independent learning. Could we call Moodle courses an independent learning facilitators? The answer is not clear, the courses are designed on a teaching and learning basis, the curriculum is chosen and planned within a given structure, however the teacher is not physically present for the learning process. Students do not receive immediate feedback, and in many occasion's students have to do their own research in order to find the answers they are looking for. Our examination was the learning process happening in the on-line collaborative learning environment. We have analyzed the last four semesters course activity. Our goal is to examine the Moodle LMS in the context of the communication in K-MOOC online courses to detect and characterize the student community activity, participation, explore the operation mechanism of this knowledge community.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130029556","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601478
Yatish Bathla
Representation of precise information is a challenging task in the information content of product model. Difficulty arises when huge number of analysis can be performed to an engineering object and there is possibility that same type of analysis operation can be performed repeatedly by different engineers as there is no specific methodology to distinguish and store the optimised information obtained from the analysis. Moreover, it is important to store the information obtained due to changes occurred in an engineering object in the context of other engineering objects. In this paper, author proposed the possible solution of above mentioned problems by introducing the process plane in the information content of Product model. Process plane defines different kind of process involved during the analysis, contextual, optimisation, decision and representation level of an engineering object. In this context, three kind of process are proposed namely Analysis process, Effect process and Optimisation process. Following this, Mathematical representation of every process and their relationship are accomplished. Finally, (requirements, functional, logical, and physical) RFLP structure is considered as an engineering object to explain the above mentioned concepts in the information content. This plane can provide all the necessary and important information related with an engineering object such that engineers can calculate and understand every aspect of the product in the virtual environment.
{"title":"Different types of process involved in the information content product model","authors":"Yatish Bathla","doi":"10.1109/SISY.2016.7601478","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601478","url":null,"abstract":"Representation of precise information is a challenging task in the information content of product model. Difficulty arises when huge number of analysis can be performed to an engineering object and there is possibility that same type of analysis operation can be performed repeatedly by different engineers as there is no specific methodology to distinguish and store the optimised information obtained from the analysis. Moreover, it is important to store the information obtained due to changes occurred in an engineering object in the context of other engineering objects. In this paper, author proposed the possible solution of above mentioned problems by introducing the process plane in the information content of Product model. Process plane defines different kind of process involved during the analysis, contextual, optimisation, decision and representation level of an engineering object. In this context, three kind of process are proposed namely Analysis process, Effect process and Optimisation process. Following this, Mathematical representation of every process and their relationship are accomplished. Finally, (requirements, functional, logical, and physical) RFLP structure is considered as an engineering object to explain the above mentioned concepts in the information content. This plane can provide all the necessary and important information related with an engineering object such that engineers can calculate and understand every aspect of the product in the virtual environment.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131640803","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601492
E. Burkus, S. Bessenyei, Á. Odry, I. Kecskés, P. Odry
The goal of this research is to build a hexapod walking robot with an optimized mechanical structure and control system. To achieve this goal, a validated model is essential. An important and complex part of the validation procedure is to determine the properties of a physical leg. To solve this problem, a test bench was designed and built in order to identify these parameters. With the analyses of the data measured with the test bench it was possible to determine the spring constant, the damping ratio and the natural frequency of the tested legs.
{"title":"Test bench built for the identification of the Szabad(ka)-II hexapod robot leg prototypes","authors":"E. Burkus, S. Bessenyei, Á. Odry, I. Kecskés, P. Odry","doi":"10.1109/SISY.2016.7601492","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601492","url":null,"abstract":"The goal of this research is to build a hexapod walking robot with an optimized mechanical structure and control system. To achieve this goal, a validated model is essential. An important and complex part of the validation procedure is to determine the properties of a physical leg. To solve this problem, a test bench was designed and built in order to identify these parameters. With the analyses of the data measured with the test bench it was possible to determine the spring constant, the damping ratio and the natural frequency of the tested legs.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131871992","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601475
Anna Bánáti, P. Kárász, P. Kacsuk, M. Kozlovszky
Applying scientific workflow to perform in-silico experiment is a more and more prevalent solution among the scientist's communities. Because of the data and compute intensive behavior of the scientific workflows parallel and distributed system (grids, clusters, clouds and supercomputers) are required to execute them. After all the complexity of these infrastructures and the continuously changing environment significantly encumber or even prevent the repeatability or the reproducibility which is often needed for results sharing or for judging scientific claims. The necessary data and parameters of the re-execution can be originated from different sources (infrastructural, third party, or related to the binaries), which may change or become unavailable during the years. Our ultimate goal is to compensate the lack of the original parameters by replacing, evaluating or simulating the value of the parameters in dispute. In order to create these methods we determined the levels of the re-execution and we defined a descriptor-space to collect all the parameters needed to the reproducibility. However these procedures take some extra cost the average reproducibility cost can be computed or even evaluated. In this paper we give a method to evaluate the average cost of making a workflow reproducible if the exact computation is not possible.
{"title":"Evaluating the average reproducibility cost of the scientific workflows","authors":"Anna Bánáti, P. Kárász, P. Kacsuk, M. Kozlovszky","doi":"10.1109/SISY.2016.7601475","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601475","url":null,"abstract":"Applying scientific workflow to perform in-silico experiment is a more and more prevalent solution among the scientist's communities. Because of the data and compute intensive behavior of the scientific workflows parallel and distributed system (grids, clusters, clouds and supercomputers) are required to execute them. After all the complexity of these infrastructures and the continuously changing environment significantly encumber or even prevent the repeatability or the reproducibility which is often needed for results sharing or for judging scientific claims. The necessary data and parameters of the re-execution can be originated from different sources (infrastructural, third party, or related to the binaries), which may change or become unavailable during the years. Our ultimate goal is to compensate the lack of the original parameters by replacing, evaluating or simulating the value of the parameters in dispute. In order to create these methods we determined the levels of the re-execution and we defined a descriptor-space to collect all the parameters needed to the reproducibility. However these procedures take some extra cost the average reproducibility cost can be computed or even evaluated. In this paper we give a method to evaluate the average cost of making a workflow reproducible if the exact computation is not possible.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115759273","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601516
B. Popović, E. Pakoci, D. Pekar
This paper presents an advanced voice activity detection (VAD) system, developed for mobile Android OS platforms with limited hardware capabilities. The system uses a dual microphone array for noise suppression and a decoder with a constrained grammar for speech detection, where Gaussian mixture models (GMMs) are used together with their acoustic weights and energy in order to increase the robustness of the proposed system. The system is presented as part of the Voice Assistant application for mobile phones, and the results are given on a database that was especially designed for that purpose. The results presented in this paper show a high accuracy even when a large amount of background noise is present.
{"title":"Advanced voice activity detection on mobile phones by using microphone array and phoneme-specific Gaussian mixture models","authors":"B. Popović, E. Pakoci, D. Pekar","doi":"10.1109/SISY.2016.7601516","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601516","url":null,"abstract":"This paper presents an advanced voice activity detection (VAD) system, developed for mobile Android OS platforms with limited hardware capabilities. The system uses a dual microphone array for noise suppression and a decoder with a constrained grammar for speech detection, where Gaussian mixture models (GMMs) are used together with their acoustic weights and energy in order to increase the robustness of the proposed system. The system is presented as part of the Voice Assistant application for mobile phones, and the results are given on a database that was especially designed for that purpose. The results presented in this paper show a high accuracy even when a large amount of background noise is present.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124810810","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601499
Radu Velea, Ioana Apostol, V. Patriciu
The current work analyzes the PcapNg format and presents a new library: LightPcapNg. Its purpose is to provide a lightweight implementation of the standard and enable modular customization. The final goal of this work is to enable other software tools to use this format and adapt it for specialized operations or other non-network specific tracing.
{"title":"LightPcapNg: Implementing a library for general-purpose tracing based on PcapNg","authors":"Radu Velea, Ioana Apostol, V. Patriciu","doi":"10.1109/SISY.2016.7601499","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601499","url":null,"abstract":"The current work analyzes the PcapNg format and presents a new library: LightPcapNg. Its purpose is to provide a lightweight implementation of the standard and enable modular customization. The final goal of this work is to enable other software tools to use this format and adapt it for specialized operations or other non-network specific tracing.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130386218","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601504
A. Máté, R. Nagy, Zsolt Szecsi, Denes-Balint Kelemen-Feher, Károly Simon
The purpose of the presented software is to help tourists to find their way to legendary locations in Transylvania. The project is composed by a central server, an Android client application and a web client application. The users of the Android application have the possibility to read about the legends, listen to audio books and watch videos. The application provides navigation to legend locations, and a notification system is also integrated for indicating these locations. The required data is uploaded to the server via the web client application.
{"title":"Legendárium navigator: Software system for supporting transylvanian tourism","authors":"A. Máté, R. Nagy, Zsolt Szecsi, Denes-Balint Kelemen-Feher, Károly Simon","doi":"10.1109/SISY.2016.7601504","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601504","url":null,"abstract":"The purpose of the presented software is to help tourists to find their way to legendary locations in Transylvania. The project is composed by a central server, an Android client application and a web client application. The users of the Android application have the possibility to read about the legends, listen to audio books and watch videos. The application provides navigation to legend locations, and a notification system is also integrated for indicating these locations. The required data is uploaded to the server via the web client application.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134435075","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 : 2016-08-01DOI: 10.1109/SISY.2016.7601514
Aleksandar Batinica, M. Raković, Miroslav Zarić, B. Borovac, M. Nikolic
Humanoid robots are the most illustrative representatives of complex cyber-physical systems. They are high-dimensional and highly coupled non-linear systems. Moreover, walking humanoid robots are underactuated with friction-limited unilateral contacts with the ground. These facts justify the need for hard real-time control of a robot's motion. Even the smallest delay in calculating the reference motion or setting the output control variable can lead to a catastrophic outcome. For this reason, most of the existing robotic control systems are real-time and custom made, intended for a specific robot (or family of robots). There is no platform offering a general tool to design the model of versatile configurations of robots and to use it in the model-based control algorithms in hard real-time. In this paper, a software tool for modelling of an articulated system consisting of several open branched kinematic chains for a hard real-time OS is proposed. The model of the robot can possess an arbitrary number of links. The software is developed on top of the QNX Neutrino real-time operating system, thus providing the precise execution of time-critical events. In the experiment, the advantages of using the general model by modelling one real robotic configuration with multiple branched kinematic chains will be shown. The processing performance during the on-line motion planning will be tested on a real-time platform running on ARM Cortex-A8 processor. The results will be compared with similar software running in a non-real-time simulation environment.
{"title":"Motion planning of a robot in real-time based on the general model of humanoid robots","authors":"Aleksandar Batinica, M. Raković, Miroslav Zarić, B. Borovac, M. Nikolic","doi":"10.1109/SISY.2016.7601514","DOIUrl":"https://doi.org/10.1109/SISY.2016.7601514","url":null,"abstract":"Humanoid robots are the most illustrative representatives of complex cyber-physical systems. They are high-dimensional and highly coupled non-linear systems. Moreover, walking humanoid robots are underactuated with friction-limited unilateral contacts with the ground. These facts justify the need for hard real-time control of a robot's motion. Even the smallest delay in calculating the reference motion or setting the output control variable can lead to a catastrophic outcome. For this reason, most of the existing robotic control systems are real-time and custom made, intended for a specific robot (or family of robots). There is no platform offering a general tool to design the model of versatile configurations of robots and to use it in the model-based control algorithms in hard real-time. In this paper, a software tool for modelling of an articulated system consisting of several open branched kinematic chains for a hard real-time OS is proposed. The model of the robot can possess an arbitrary number of links. The software is developed on top of the QNX Neutrino real-time operating system, thus providing the precise execution of time-critical events. In the experiment, the advantages of using the general model by modelling one real robotic configuration with multiple branched kinematic chains will be shown. The processing performance during the on-line motion planning will be tested on a real-time platform running on ARM Cortex-A8 processor. The results will be compared with similar software running in a non-real-time simulation environment.","PeriodicalId":193153,"journal":{"name":"2016 IEEE 14th International Symposium on Intelligent Systems and Informatics (SISY)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117175134","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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