Pub Date : 2010-03-04DOI: 10.1109/SAMI.2010.5423747
P. Gróf, B. Takarics, Z. Petres, P. Korondi
This paper presents TP (Tensor Product) model type polytopic decomposition of the qLPV state space dynamic model of the proportional valve driven pneumatic cylinder with friction phenomena taken into account. First the qLPV model of the system is presented. Then the TP model transformation on the qLPV model is executed in order to obtain CNO (close to normal) convex form. This paper proves that the pneumatic model can exactly be represented by TP model type polytopic form with minimum 81 vertices.
{"title":"Tensor product model type polytopic decomposition of a pneumatic system with friction phenomena taken into account","authors":"P. Gróf, B. Takarics, Z. Petres, P. Korondi","doi":"10.1109/SAMI.2010.5423747","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423747","url":null,"abstract":"This paper presents TP (Tensor Product) model type polytopic decomposition of the qLPV state space dynamic model of the proportional valve driven pneumatic cylinder with friction phenomena taken into account. First the qLPV model of the system is presented. Then the TP model transformation on the qLPV model is executed in order to obtain CNO (close to normal) convex form. This paper proves that the pneumatic model can exactly be represented by TP model type polytopic form with minimum 81 vertices.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129048452","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423737
L. Dobos, Z. Bankó, J. Abonyi
Process models play important role in computer aided process engineering. Although the structure of these models is a priori known, model parameters should be estimated based on experiments. The accuracy of the estimated parameters largely depends on the information content of the experimental data presented to the parameter identification algorithm. Optimal Experiment Design (OED) can maximize the confidence on the model parameters. Considering that OED is an iterative process, it may happen that the designed experiment contains segments which are not or less useful for parameter identification. Using the tools of the OED there is the opportunity to qualify the segments of the time-series of different data sets. After the segmentation, it will be possible to choose the most appropriate segments for identification of each parameter, i.e. to determine the parameters as accurate as possible.
{"title":"Optimal experiment design techniques integrated with time-series segmentation","authors":"L. Dobos, Z. Bankó, J. Abonyi","doi":"10.1109/SAMI.2010.5423737","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423737","url":null,"abstract":"Process models play important role in computer aided process engineering. Although the structure of these models is a priori known, model parameters should be estimated based on experiments. The accuracy of the estimated parameters largely depends on the information content of the experimental data presented to the parameter identification algorithm. Optimal Experiment Design (OED) can maximize the confidence on the model parameters. Considering that OED is an iterative process, it may happen that the designed experiment contains segments which are not or less useful for parameter identification. Using the tools of the OED there is the opportunity to qualify the segments of the time-series of different data sets. After the segmentation, it will be possible to choose the most appropriate segments for identification of each parameter, i.e. to determine the parameters as accurate as possible.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123492565","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423729
J. Gáti, G. Kártyás
Advanced computer systems can be reached from everywhere in higher education institutions. Quick development of hardware and software resources needs frequent revising of concepts and methods for the application of computers at teaching and learning processes. The authors of this paper joined to efforts for creating concepts and method for the practical application of known higher university course concepts and theories. They discussed practical orientation of course model proposals in their earlier works. In this paper, they introduce some key issues in computer modeling of higher education courses considering recent demands and structures. Basic functionality of an Internet based and computer processed virtual classroom is outlined in which academic functionality organizes and coordinates other functionalities. Following this, definition and application sides of course description related activities are introduced and handling of inside and outside relationship definitions in a course model is explained. Next, definition of course description is explained starting from the definition of elements and course patterns and modeling procedures and processes are discussed. Finally, possibility for the integration of the proposed new course and current industrial product modeling is noticed.
{"title":"Practical application of modules and topics in course descriptions","authors":"J. Gáti, G. Kártyás","doi":"10.1109/SAMI.2010.5423729","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423729","url":null,"abstract":"Advanced computer systems can be reached from everywhere in higher education institutions. Quick development of hardware and software resources needs frequent revising of concepts and methods for the application of computers at teaching and learning processes. The authors of this paper joined to efforts for creating concepts and method for the practical application of known higher university course concepts and theories. They discussed practical orientation of course model proposals in their earlier works. In this paper, they introduce some key issues in computer modeling of higher education courses considering recent demands and structures. Basic functionality of an Internet based and computer processed virtual classroom is outlined in which academic functionality organizes and coordinates other functionalities. Following this, definition and application sides of course description related activities are introduced and handling of inside and outside relationship definitions in a course model is explained. Next, definition of course description is explained starting from the definition of elements and course patterns and modeling procedures and processes are discussed. Finally, possibility for the integration of the proposed new course and current industrial product modeling is noticed.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127157468","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423744
J. Gazda, P. Drotár, P. Galajda, D. Kocur
New evolving standards of the cellular systems, like e.g. Long Term Evolution (LTE), WiMax and Advanced LTE, consider Orthogonal Frequency Division Multiplex Access (OFDMA) as a mature and suitable solution to cope with the Inter Symbol Interference (ISI) due to the multi-path propagation. However, a major drawback of OFDMA which largely limited its application in the real environment is large envelope fluctuation which results in strong nonlinear distortion due to the nonlinear characteristic of power amplifier (PA). One possible solution to tackle this problem has been introduced by the the 3rd Generation Partnership Project (3GPP) consortium. This solution is based on spreading the base-band modulated signal before the application of OFDMA by using Discrete Fourier Transformation (DFT) that leads eventually to lower envelope fluctuation in comparison with that of OFDMA. The presented method is widely recognized as Single Frequency Division Multiplex (SC-FDMA). This paper aims to provide general comparison of both conventional OFDMA and SC-FDMA and draws important conclusions from this comparison.
{"title":"Comparative evaluation of OFDMA and SC-FDMA based transmission systems","authors":"J. Gazda, P. Drotár, P. Galajda, D. Kocur","doi":"10.1109/SAMI.2010.5423744","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423744","url":null,"abstract":"New evolving standards of the cellular systems, like e.g. Long Term Evolution (LTE), WiMax and Advanced LTE, consider Orthogonal Frequency Division Multiplex Access (OFDMA) as a mature and suitable solution to cope with the Inter Symbol Interference (ISI) due to the multi-path propagation. However, a major drawback of OFDMA which largely limited its application in the real environment is large envelope fluctuation which results in strong nonlinear distortion due to the nonlinear characteristic of power amplifier (PA). One possible solution to tackle this problem has been introduced by the the 3rd Generation Partnership Project (3GPP) consortium. This solution is based on spreading the base-band modulated signal before the application of OFDMA by using Discrete Fourier Transformation (DFT) that leads eventually to lower envelope fluctuation in comparison with that of OFDMA. The presented method is widely recognized as Single Frequency Division Multiplex (SC-FDMA). This paper aims to provide general comparison of both conventional OFDMA and SC-FDMA and draws important conclusions from this comparison.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114496109","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423767
L. Kovács, P. Barabas
One of the main research areas in current intelligent systems is the development of natural language interfaces for applications. The paper presents an overview of NLP structure and analyses the importance of semantic in understanding of a language. In the work, an ECG-based sentence analyzer is proposed that translates the incoming natural language sentences into API level function calls.
{"title":"Implementation of sentence parser for Hungarian language in natural language processing","authors":"L. Kovács, P. Barabas","doi":"10.1109/SAMI.2010.5423767","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423767","url":null,"abstract":"One of the main research areas in current intelligent systems is the development of natural language interfaces for applications. The paper presents an overview of NLP structure and analyses the importance of semantic in understanding of a language. In the work, an ECG-based sentence analyzer is proposed that translates the incoming natural language sentences into API level function calls.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129940145","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423758
F. Babic, J. Wagner, S. Jadlovska, P. Lesko
This paper presents design, implementation and experimental verification of logging mechanism for collaborative systems that contains separate database for storing the logs of events from the system, communication services between database and examined system and some simple analytical services to provide basic summarized information about saved data. The proposed approach was tested within four selected collaborative systems, namely KP-Lab System, Claroline, Moodle and Dokeos. The main motivation behind described solution is to obtain real data for different analytical purposes.
{"title":"A logging mechanism for acquisition of real data from different collaborative systems for analytical purposes","authors":"F. Babic, J. Wagner, S. Jadlovska, P. Lesko","doi":"10.1109/SAMI.2010.5423758","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423758","url":null,"abstract":"This paper presents design, implementation and experimental verification of logging mechanism for collaborative systems that contains separate database for storing the logs of events from the system, communication services between database and examined system and some simple analytical services to provide basic summarized information about saved data. The proposed approach was tested within four selected collaborative systems, namely KP-Lab System, Claroline, Moodle and Dokeos. The main motivation behind described solution is to obtain real data for different analytical purposes.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130387144","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423742
P. Kádár
The EU for the sustainable energy generation made some directives related the raise of the renewable ratio in the energy mix portfolio. E.g. Hungary must generate 13% of the electrical energy on renewable base in 2020. The actual energy prices do not represent the future external society costs of the environment pollution, damage and climate change. The reduction of the CO2 emission, the lowest external cost solution is not the short term cheapest solution. In this paper we use Single Objective Optimization technique to demonstrate that the energy strategy can be based on clear scientific considerations instead of political approach. We find that the real energy portfolio can be planned by Multi Objective Optimization techniques.
{"title":"Multi objective power mix optimization","authors":"P. Kádár","doi":"10.1109/SAMI.2010.5423742","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423742","url":null,"abstract":"The EU for the sustainable energy generation made some directives related the raise of the renewable ratio in the energy mix portfolio. E.g. Hungary must generate 13% of the electrical energy on renewable base in 2020. The actual energy prices do not represent the future external society costs of the environment pollution, damage and climate change. The reduction of the CO2 emission, the lowest external cost solution is not the short term cheapest solution. In this paper we use Single Objective Optimization technique to demonstrate that the energy strategy can be based on clear scientific considerations instead of political approach. We find that the real energy portfolio can be planned by Multi Objective Optimization techniques.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122770546","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423734
V. Jelen, J. Janáček, Z. Tomori
Tracking of partially occluded or unevenly illuminated objects is the most challenging problem of the analysis of moving objects. Both problems can solve the graph cut segmentation with elliptical shape prior. Interactive control is necessary in the training phase of system as well as in a critical situation requiring the human intervention. Bi-elliptical shape prior model corresponds to the anatomy of animals and improves the precision of tracking. The system was tested in the analysis of animal's mobility which corresponds to the level of brain damage by a neurodegenerative disease.
{"title":"Mobility tracking by interactive graph-cut segmentation with Bi-elliptical shape prior","authors":"V. Jelen, J. Janáček, Z. Tomori","doi":"10.1109/SAMI.2010.5423734","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423734","url":null,"abstract":"Tracking of partially occluded or unevenly illuminated objects is the most challenging problem of the analysis of moving objects. Both problems can solve the graph cut segmentation with elliptical shape prior. Interactive control is necessary in the training phase of system as well as in a critical situation requiring the human intervention. Bi-elliptical shape prior model corresponds to the anatomy of animals and improves the precision of tracking. The system was tested in the analysis of animal's mobility which corresponds to the level of brain damage by a neurodegenerative disease.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122902684","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423762
D. Draxler, Melanie Draxler
The problem sounds simple; Cashing money for WLAN HOT SPOT usage, but not in a standard location like an internet cafe. This “cafe-shop” travels with 850 km/h at 10.000 m of altitude. Or, how can we add a WLAN Hot Spot — Billing system into an aircraft without adding payload, blocking space and have it run by non-IT skilled, changing flight crew attendants. The WLAN user should simply switch on the PC, grant access to the WWW and in the same time his money for the usage is drawn out of his wallet. Different software solutions are extensively evaluated within field-tests to simplify operations.
{"title":"Man machine software interface for billing of aircraft on-board systems","authors":"D. Draxler, Melanie Draxler","doi":"10.1109/SAMI.2010.5423762","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423762","url":null,"abstract":"The problem sounds simple; Cashing money for WLAN HOT SPOT usage, but not in a standard location like an internet cafe. This “cafe-shop” travels with 850 km/h at 10.000 m of altitude. Or, how can we add a WLAN Hot Spot — Billing system into an aircraft without adding payload, blocking space and have it run by non-IT skilled, changing flight crew attendants. The WLAN user should simply switch on the PC, grant access to the WWW and in the same time his money for the usage is drawn out of his wallet. Different software solutions are extensively evaluated within field-tests to simplify operations.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120899462","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 : 2010-03-04DOI: 10.1109/SAMI.2010.5423750
P. Galambos, A. Róka, G. Soros, P. Korondi
A general effort in telemanipulation is to establish as many and as high quality sensory channels as possible between the human operator and the remote site. However, most of the tasks require only a portion of human sensory skills, typically - besides visual information - kinesthetic, haptic and tactile force-feedback. But realizing teleoperators providing transparent force-feedback over a long distance is still a challenge because of the low bandwidth, varying network delay and the probably unknown remote environment. Therefore, the senses that are not necessary for controlling the process should be used to support the operator to enhance or substitute the force feedback. In system status sensualization the goal is to provide an interpretation of sensory information that can be easily and effectively perceived by the operator. However, traditional analogous or digital instrumentation requires that the operator directs his sight right to the instrument to read the values. Furthermore, these values are usually important only if they are in an abnormal state. In case of a quite complex system (an airplane or a power plant) this process is very time-consuming and often needs several operators. In this paper we propose new visualization methods using peripheral vision to transmit visual information matched to the capabilities of the human visual system. The novel method could be applied for both sensory substitution and system status sensualization. The theoretical background of this work is a mathematical model of the human photopic contrast sensitivity proposed by the authors in a previous work. The novel visualization methods are analyzed experimentally via comparative tests.
{"title":"Visual feedback techniques for telemanipulation and system status sensualization","authors":"P. Galambos, A. Róka, G. Soros, P. Korondi","doi":"10.1109/SAMI.2010.5423750","DOIUrl":"https://doi.org/10.1109/SAMI.2010.5423750","url":null,"abstract":"A general effort in telemanipulation is to establish as many and as high quality sensory channels as possible between the human operator and the remote site. However, most of the tasks require only a portion of human sensory skills, typically - besides visual information - kinesthetic, haptic and tactile force-feedback. But realizing teleoperators providing transparent force-feedback over a long distance is still a challenge because of the low bandwidth, varying network delay and the probably unknown remote environment. Therefore, the senses that are not necessary for controlling the process should be used to support the operator to enhance or substitute the force feedback. In system status sensualization the goal is to provide an interpretation of sensory information that can be easily and effectively perceived by the operator. However, traditional analogous or digital instrumentation requires that the operator directs his sight right to the instrument to read the values. Furthermore, these values are usually important only if they are in an abnormal state. In case of a quite complex system (an airplane or a power plant) this process is very time-consuming and often needs several operators. In this paper we propose new visualization methods using peripheral vision to transmit visual information matched to the capabilities of the human visual system. The novel method could be applied for both sensory substitution and system status sensualization. The theoretical background of this work is a mathematical model of the human photopic contrast sensitivity proposed by the authors in a previous work. The novel visualization methods are analyzed experimentally via comparative tests.","PeriodicalId":306051,"journal":{"name":"2010 IEEE 8th International Symposium on Applied Machine Intelligence and Informatics (SAMI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131999606","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：