Pub Date : 2013-05-23DOI: 10.1109/SACI.2013.6608998
V. Muresan, M. Abrudean, T. Colosi
This paper presents a method for the pH control of the residual water from a metallurgical factory. The blunting process is decomposed in two sub-processes connected in parallel, both viewed as distributed parameters processes and modeled through equations with partial derivatives. The mathematical model of the two sub-processes considers the delays introduced by the liquids circulation in the plant. The modeling-simulation procedure is an application of the matrix of partial derivatives of the state vector (Mpdx) method associated with Taylor series.
{"title":"Modeling and simulation of the automatic control system of the residual water blunting process from a metallurgical factory","authors":"V. Muresan, M. Abrudean, T. Colosi","doi":"10.1109/SACI.2013.6608998","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608998","url":null,"abstract":"This paper presents a method for the pH control of the residual water from a metallurgical factory. The blunting process is decomposed in two sub-processes connected in parallel, both viewed as distributed parameters processes and modeled through equations with partial derivatives. The mathematical model of the two sub-processes considers the delays introduced by the liquids circulation in the plant. The modeling-simulation procedure is an application of the matrix of partial derivatives of the state vector (Mpdx) method associated with Taylor series.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125668756","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608986
T. Szántai, E. Kovács
In this paper we introduce an unsupervised learning algorithm for discovering some of the conditional independences between the attributes (features) which characterize the elements of a statistical population. Using this algorithm we obtain a graph structure which makes possible the clustering of data elements into classes in an efficient way. In the same time our algorithm gives a new method for reducing the dimension of the feature space. In this way also the visualization of the clusters becomes possible in lower dimensional cases. The results of this type of clustering can be used also for classification of new data elements. We show how the method works on real problems and compare our results to those of other algorithms which are applied to the same dataset.
{"title":"Cluster analysis by exploiting conditional independences","authors":"T. Szántai, E. Kovács","doi":"10.1109/SACI.2013.6608986","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608986","url":null,"abstract":"In this paper we introduce an unsupervised learning algorithm for discovering some of the conditional independences between the attributes (features) which characterize the elements of a statistical population. Using this algorithm we obtain a graph structure which makes possible the clustering of data elements into classes in an efficient way. In the same time our algorithm gives a new method for reducing the dimension of the feature space. In this way also the visualization of the clusters becomes possible in lower dimensional cases. The results of this type of clustering can be used also for classification of new data elements. We show how the method works on real problems and compare our results to those of other algorithms which are applied to the same dataset.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128931600","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608974
C. Koch-Ciobotaru, R. Boraci, O. Proștean, I. Szeidert
This paper presents comparisons of two controllers implemented at the level of a household heating system for voltage control at the point of coupling with the distribution grid. The voltage is maintained between safety limits using demand response, the electric heaters being used to follow two objectives: to control the inside temperature as well as to control the consumption and, thus, the voltage. Study cases and simulations were conducted in Power Factory on a modeled microgrid structure.
{"title":"Voltage control in a microgrid using demand response","authors":"C. Koch-Ciobotaru, R. Boraci, O. Proștean, I. Szeidert","doi":"10.1109/SACI.2013.6608974","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608974","url":null,"abstract":"This paper presents comparisons of two controllers implemented at the level of a household heating system for voltage control at the point of coupling with the distribution grid. The voltage is maintained between safety limits using demand response, the electric heaters being used to follow two objectives: to control the inside temperature as well as to control the consumption and, thus, the voltage. Study cases and simulations were conducted in Power Factory on a modeled microgrid structure.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127912433","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608995
G. Schaefer
Pattern recognition problems occur in many fields and hence effective classification algorithms are the focus of much research. In various circumstances not classification accuracy but misclassification cost minimsation is the primary goal leading to the development of cost-sensitive classification algorithms. In this paper, we show how evolutionary algorithms, in particular genetic algorithms (GAs), can be employed optimise to cost-sensitive classifiers and classifier ensembles. In particular, we discuss how GAs can be employed to derive a compact set of fuzzy if-then rules with an embedded cost term, and how GAs are able to perform simultaneous classifier selection and fusion for ensemble classifiers.
{"title":"Evolutionary optimisation of classifiers and classifier ensembles for cost-sensitive pattern recognition","authors":"G. Schaefer","doi":"10.1109/SACI.2013.6608995","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608995","url":null,"abstract":"Pattern recognition problems occur in many fields and hence effective classification algorithms are the focus of much research. In various circumstances not classification accuracy but misclassification cost minimsation is the primary goal leading to the development of cost-sensitive classification algorithms. In this paper, we show how evolutionary algorithms, in particular genetic algorithms (GAs), can be employed optimise to cost-sensitive classifiers and classifier ensembles. In particular, we discuss how GAs can be employed to derive a compact set of fuzzy if-then rules with an embedded cost term, and how GAs are able to perform simultaneous classifier selection and fusion for ensemble classifiers.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"402 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123527197","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608977
C. Briciu, I. Filip, Franz Heininger
This article sheds light on one important aspect of the automotive industry: the AUTomotive Open System ARchitecture (AUTOSAR) concept that is the basis for development of the new modules inside of the automotive systems and represents the newest worldwide automotive trend. First part of the article presents the reasons why such a standard is needed and mandatory in the current financial and technical contexts. The second part presents the vision and the architecture of the concept. For a better understanding of the theoretical aspects presented above, last part of the article presents a lower complexity example about the way in which AUTOSAR modules shall be designed and the working method.
{"title":"A new trend in automotive software: AUTOSAR concept","authors":"C. Briciu, I. Filip, Franz Heininger","doi":"10.1109/SACI.2013.6608977","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608977","url":null,"abstract":"This article sheds light on one important aspect of the automotive industry: the AUTomotive Open System ARchitecture (AUTOSAR) concept that is the basis for development of the new modules inside of the automotive systems and represents the newest worldwide automotive trend. First part of the article presents the reasons why such a standard is needed and mandatory in the current financial and technical contexts. The second part presents the vision and the architecture of the concept. For a better understanding of the theoretical aspects presented above, last part of the article presents a lower complexity example about the way in which AUTOSAR modules shall be designed and the working method.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126105647","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608978
Mihai-Ioan Popescu, D. Ungureanu-Anghel, I. Filip
What the authors propose in this paper is an intelligent method to use submodels of Petri net type in order to model complex discrete event systems (DES). Starting from the definition of the Petri network, a clear definition of submodels of such networks is proposed by the authors. The use of submodels in DES' analysis is exemplified by modeling of decision nodes of intelligent transport systems that are an integral part of flexible manufacturing systems. Starting from a particular model of a node with two inputs and two outputs, the authors propose a generalization of such a complex node, by proposing a model based on submodels for a node with n inputs and m outputs.
{"title":"Designing complex Petri nets using submodels with application in flexible manufacturing systems","authors":"Mihai-Ioan Popescu, D. Ungureanu-Anghel, I. Filip","doi":"10.1109/SACI.2013.6608978","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608978","url":null,"abstract":"What the authors propose in this paper is an intelligent method to use submodels of Petri net type in order to model complex discrete event systems (DES). Starting from the definition of the Petri network, a clear definition of submodels of such networks is proposed by the authors. The use of submodels in DES' analysis is exemplified by modeling of decision nodes of intelligent transport systems that are an integral part of flexible manufacturing systems. Starting from a particular model of a node with two inputs and two outputs, the authors propose a generalization of such a complex node, by proposing a model based on submodels for a node with n inputs and m outputs.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122064637","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608964
Csaba Farkas, R. Fuller, A. Kristály
This paper deals with a sublinear differential inclusion problem (Pλ) depending on a parameter λ > 0 which is defined on a strip-like domain subject to the zero Dirichlet boundary condition. By variational methods, we prove that for large values of λ, problem (Pλ) has at least two non-zero axially symmetric weak solutions.
{"title":"A sublinear differential inclusion on strip-like domains","authors":"Csaba Farkas, R. Fuller, A. Kristály","doi":"10.1109/SACI.2013.6608964","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608964","url":null,"abstract":"This paper deals with a sublinear differential inclusion problem (P<sub>λ</sub>) depending on a parameter λ > 0 which is defined on a strip-like domain subject to the zero Dirichlet boundary condition. By variational methods, we prove that for large values of λ, problem (P<sub>λ</sub>) has at least two non-zero axially symmetric weak solutions.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134509668","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608961
Ana-Andreea Nagat, C. Căleanu
Face recognition is one of the most widely studied problems in computer science due to various advantages, such as universality, robustness, permanence and accessibility [1]. It becomes increasingly important in many applications, including urban surveillance, home security, and healthcare [2]. Our approach aims human identification using soft biometrics (face, skeleton) extracted from 2D and 3D video sources. The proposed solution is based on low cost hardware [3].
{"title":"Face identification using kinect technology","authors":"Ana-Andreea Nagat, C. Căleanu","doi":"10.1109/SACI.2013.6608961","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608961","url":null,"abstract":"Face recognition is one of the most widely studied problems in computer science due to various advantages, such as universality, robustness, permanence and accessibility [1]. It becomes increasingly important in many applications, including urban surveillance, home security, and healthcare [2]. Our approach aims human identification using soft biometrics (face, skeleton) extracted from 2D and 3D video sources. The proposed solution is based on low cost hardware [3].","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114763669","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608996
D. Mitic, M. Spasić, M. Hovd, D. Antić
This paper presents the combination of generalized predictive and sliding mode control techniques in order to improve the system robustness to parameter variation. The proposed control algorithm belongs to the group of chattering-free sliding mode control laws, and it provides the minimum value of the cost function in the presence of parameter perturbations. Digital simulation results are given to verify the sliding mode based generalized predictive controller.
{"title":"An approach to design of sliding mode based generalized predictive control","authors":"D. Mitic, M. Spasić, M. Hovd, D. Antić","doi":"10.1109/SACI.2013.6608996","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608996","url":null,"abstract":"This paper presents the combination of generalized predictive and sliding mode control techniques in order to improve the system robustness to parameter variation. The proposed control algorithm belongs to the group of chattering-free sliding mode control laws, and it provides the minimum value of the cost function in the presence of parameter perturbations. Digital simulation results are given to verify the sliding mode based generalized predictive controller.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130680429","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 : 2013-05-23DOI: 10.1109/SACI.2013.6608957
A. Cioloca, R. Both, R. Festila
Ammonia synthesis is a very important process in the national economy and the column synthesis with the additional expensive equipments justify the necessity of the mathematical modeling, model validation and control system implementation. The work presents some problems of the ammonia synthesis model based on fundamental equations from physics and chemical engineering. After a model linearization some control conventional system are presented and validated.
{"title":"Model validation, simulation and control for ammonia synthesis column","authors":"A. Cioloca, R. Both, R. Festila","doi":"10.1109/SACI.2013.6608957","DOIUrl":"https://doi.org/10.1109/SACI.2013.6608957","url":null,"abstract":"Ammonia synthesis is a very important process in the national economy and the column synthesis with the additional expensive equipments justify the necessity of the mathematical modeling, model validation and control system implementation. The work presents some problems of the ammonia synthesis model based on fundamental equations from physics and chemical engineering. After a model linearization some control conventional system are presented and validated.","PeriodicalId":304729,"journal":{"name":"2013 IEEE 8th International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122249744","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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