Pub Date : 2012-05-24DOI: 10.1109/SACI.2012.6250025
A. B. A. Dumitru, C. A. Popu
The paper describes a method for compression of functions code located in non-volatile memory of an embedded system after the link/locate phase, decompression of these functions before executed in volatile memory of the embedded system and execution of these decompressed functions by the embedded system[3]. The idea is not focused on compression method (which can be other innovative matter), but in how to implement all the described phases in an embedded project in a simple and time efficient way.
{"title":"Code compression and runtime code decompression in embedded systems","authors":"A. B. A. Dumitru, C. A. Popu","doi":"10.1109/SACI.2012.6250025","DOIUrl":"https://doi.org/10.1109/SACI.2012.6250025","url":null,"abstract":"The paper describes a method for compression of functions code located in non-volatile memory of an embedded system after the link/locate phase, decompression of these functions before executed in volatile memory of the embedded system and execution of these decompressed functions by the embedded system[3]. The idea is not focused on compression method (which can be other innovative matter), but in how to implement all the described phases in an embedded project in a simple and time efficient way.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117205590","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 : 2012-05-24DOI: 10.1109/SACI.2012.6249991
H. Fujita, I. Rudas, J. Fodor, M. Kurematsu, J. Hakura
The paper discusses reasoning application for decision making in medical diagnosis. This is to reason on medical concepts that are viewed on two type ontologies; namely physical and mental. We highlighted in this position paper issues on fuzzy reasoning by aggregating two types of ontologies that are used to formalize a patient state: mental ontology reflecting the patient mental behavior due to certain disorder and physical ontology reflecting the observed physical behavior exhibited through disorder. Similarity matching is used to find the similarity between fuzzy set reflected to mental fuzzy ontology, and physical fuzzy ontology. The alignment is projected on medical ontology to rank attributes for decision making. We apply aggregate function for ranking attributes related to physical object. In the same time, we apply harmonic power average aggregate function fuzzy for ranking attributes related to mental objects. The alignment of these two aggregate function produce weighted ranking order fuzzy set for medical decision making for diagnosis. The paper highlights these issues as new challenges extending intelligence reasoning of VDS.
{"title":"Fuzzy reasoning for medical diagnosis-based aggregation on different ontologies","authors":"H. Fujita, I. Rudas, J. Fodor, M. Kurematsu, J. Hakura","doi":"10.1109/SACI.2012.6249991","DOIUrl":"https://doi.org/10.1109/SACI.2012.6249991","url":null,"abstract":"The paper discusses reasoning application for decision making in medical diagnosis. This is to reason on medical concepts that are viewed on two type ontologies; namely physical and mental. We highlighted in this position paper issues on fuzzy reasoning by aggregating two types of ontologies that are used to formalize a patient state: mental ontology reflecting the patient mental behavior due to certain disorder and physical ontology reflecting the observed physical behavior exhibited through disorder. Similarity matching is used to find the similarity between fuzzy set reflected to mental fuzzy ontology, and physical fuzzy ontology. The alignment is projected on medical ontology to rank attributes for decision making. We apply aggregate function for ranking attributes related to physical object. In the same time, we apply harmonic power average aggregate function fuzzy for ranking attributes related to mental objects. The alignment of these two aggregate function produce weighted ranking order fuzzy set for medical decision making for diagnosis. The paper highlights these issues as new challenges extending intelligence reasoning of VDS.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123951474","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 : 2012-05-24DOI: 10.1109/SACI.2012.6249984
P. Butka, J. Pócsová, J. Pócs
In this paper we provide experimental study on time complexity of GOSCL algorithm according to the sparseness of the input data table. GOSCL is incremental algorithm for the creation of Generalized One-Sided Concept Lattices, which is related to well-known Formal Concept Analysis area, but with the possibility to work with different types of attributes and to produce one-sided concept lattice from the generalized one-sided formal context. Generally, FCA-based algorithms are exponential. However, in practice there are many inputs for which the complexity is reduced. One of the special cases is related to the high number of "zeros" (bottom elements) in data table for so-called sparse data matrices, which is characteristic for some inputs like document-term matrix in text-mining analysis. We describe experimentally the influence of sparseness of data tables on time complexity of GOSCL with different distributions of zeros generated artificially randomly or according to the standard text-mining datasets.
{"title":"Experimental study on time complexity of GOSCL algorithm for sparse data tables","authors":"P. Butka, J. Pócsová, J. Pócs","doi":"10.1109/SACI.2012.6249984","DOIUrl":"https://doi.org/10.1109/SACI.2012.6249984","url":null,"abstract":"In this paper we provide experimental study on time complexity of GOSCL algorithm according to the sparseness of the input data table. GOSCL is incremental algorithm for the creation of Generalized One-Sided Concept Lattices, which is related to well-known Formal Concept Analysis area, but with the possibility to work with different types of attributes and to produce one-sided concept lattice from the generalized one-sided formal context. Generally, FCA-based algorithms are exponential. However, in practice there are many inputs for which the complexity is reduced. One of the special cases is related to the high number of \"zeros\" (bottom elements) in data table for so-called sparse data matrices, which is characteristic for some inputs like document-term matrix in text-mining analysis. We describe experimentally the influence of sparseness of data tables on time complexity of GOSCL with different distributions of zeros generated artificially randomly or according to the standard text-mining datasets.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"15 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127634738","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 : 2012-05-24DOI: 10.1109/SACI.2012.6250030
M. Babescu, C. Șorândaru, S. Musuroi, M. Svoboda
This paper proposes an original method of determining the maximum power function point of a wind turbine at variable wind speeds. There are presented the non-linear equations which model the wind turbine (WT), the diesel engine (DE) and the asynchronous generator (AG). The advantages of using the asynchronous versus synchronous generators are also outlined.
{"title":"Dynamics of the diesel-wind system with asynchronous generators","authors":"M. Babescu, C. Șorândaru, S. Musuroi, M. Svoboda","doi":"10.1109/SACI.2012.6250030","DOIUrl":"https://doi.org/10.1109/SACI.2012.6250030","url":null,"abstract":"This paper proposes an original method of determining the maximum power function point of a wind turbine at variable wind speeds. There are presented the non-linear equations which model the wind turbine (WT), the diesel engine (DE) and the asynchronous generator (AG). The advantages of using the asynchronous versus synchronous generators are also outlined.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131249855","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 : 2012-05-24DOI: 10.1109/SACI.2012.6250007
J. Sárosi
The newest and most promising type of pneumatic actuators is the pneumatic artificial muscle (PAM). Different designs have been developed, but the McKibben muscle is the most popular and is made commercially available by different companies (e. g. Fluidic Muscle manufactured by Festo Company). Pneumatic artificial muscles have a wide range of use in industrial and medical fields. There are a lot of advantages of these muscles like the high strength, good power-weight ratio, low price, little maintenance needed, great compliance, compactness, inherent safety and usage in rough environments. The main disadvantage is that their dynamic behavior is highly nonlinear. The most often mentioned characteristic of PAMs is the force as a function of pressure and contraction. In this paper our newest function approximation for the force generated by Fluidic Muscles is shown that can be generally used for different muscles made by Festo Company.
{"title":"New approximation algorithm for the force of Fluidic Muscles","authors":"J. Sárosi","doi":"10.1109/SACI.2012.6250007","DOIUrl":"https://doi.org/10.1109/SACI.2012.6250007","url":null,"abstract":"The newest and most promising type of pneumatic actuators is the pneumatic artificial muscle (PAM). Different designs have been developed, but the McKibben muscle is the most popular and is made commercially available by different companies (e. g. Fluidic Muscle manufactured by Festo Company). Pneumatic artificial muscles have a wide range of use in industrial and medical fields. There are a lot of advantages of these muscles like the high strength, good power-weight ratio, low price, little maintenance needed, great compliance, compactness, inherent safety and usage in rough environments. The main disadvantage is that their dynamic behavior is highly nonlinear. The most often mentioned characteristic of PAMs is the force as a function of pressure and contraction. In this paper our newest function approximation for the force generated by Fluidic Muscles is shown that can be generally used for different muscles made by Festo Company.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123358916","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 : 2012-05-24DOI: 10.1109/SACI.2012.6249996
A. Dan, T. Dragomir
Although the cardiovascular process model is well formed, the shape of the control function which complements the ensemble as a control system is still an open question. The paper presents a new structure of the ensemble that handles the control mechanism using a two terms control signal and offers a simple solution for modeling the response of the cardiovascular system to constant exercise. The proposed model is implemented and simulated in Matlab-Simulink. The heart rate and arterial systemic pressure responses to the exercise scenario are compared with the ones obtained by the implementation of cardiovascular system as a solution of a linear quadratic control problem.
{"title":"A model of the control function in the case of constant effort of the cardiovascular system","authors":"A. Dan, T. Dragomir","doi":"10.1109/SACI.2012.6249996","DOIUrl":"https://doi.org/10.1109/SACI.2012.6249996","url":null,"abstract":"Although the cardiovascular process model is well formed, the shape of the control function which complements the ensemble as a control system is still an open question. The paper presents a new structure of the ensemble that handles the control mechanism using a two terms control signal and offers a simple solution for modeling the response of the cardiovascular system to constant exercise. The proposed model is implemented and simulated in Matlab-Simulink. The heart rate and arterial systemic pressure responses to the exercise scenario are compared with the ones obtained by the implementation of cardiovascular system as a solution of a linear quadratic control problem.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127943425","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 : 2012-05-24DOI: 10.1109/SACI.2012.6250008
Marina-Anca Cidotã, M. Dumitrescu
The paper proposes an extension of Hidden Markov models for communication systems that are influenced by external "catalyzers" (e.g. environmental or experimental conditions). A simpler version of the model, the Logistic HMM (LHMM), was already introduced by the authors. In comparison with LHMM, this new extension of HMM allows the catalyzer to have multiple components, expressing the influence over the system through multinomial link functions. A possible application of the Multinomial Hidden Markov model (MHMM) could be in bio-informatics for example, to predict under different external conditions (different quantities of calcium channel blockers CCB and some antioxidants AO) the behavior of the calcium channel that holds an essential part in controlling the blood pressure. We introduce a training algorithm for MHMM based on the BaumWelch scheme, including nested algorithms for optimization such as the Newton - Raphson and the Expectation-Maximization technique for updating the parameters of the model. In order to explore the convergence of the proposed training procedure, a simulation study is provided.
{"title":"A multinomial - Hidden Markov model for communication systems influenced by external factors","authors":"Marina-Anca Cidotã, M. Dumitrescu","doi":"10.1109/SACI.2012.6250008","DOIUrl":"https://doi.org/10.1109/SACI.2012.6250008","url":null,"abstract":"The paper proposes an extension of Hidden Markov models for communication systems that are influenced by external \"catalyzers\" (e.g. environmental or experimental conditions). A simpler version of the model, the Logistic HMM (LHMM), was already introduced by the authors. In comparison with LHMM, this new extension of HMM allows the catalyzer to have multiple components, expressing the influence over the system through multinomial link functions. A possible application of the Multinomial Hidden Markov model (MHMM) could be in bio-informatics for example, to predict under different external conditions (different quantities of calcium channel blockers CCB and some antioxidants AO) the behavior of the calcium channel that holds an essential part in controlling the blood pressure. We introduce a training algorithm for MHMM based on the BaumWelch scheme, including nested algorithms for optimization such as the Newton - Raphson and the Expectation-Maximization technique for updating the parameters of the model. In order to explore the convergence of the proposed training procedure, a simulation study is provided.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128349727","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 : 2012-05-24DOI: 10.1109/SACI.2012.6249993
H. Charafeddine, V. Groza
Conventional adaptive feedback cancellers (FBC) exhibit poor performance for acoustic leakage reduction in hearing aids. In this paper, a modified frequency domain fast block least mean square (LMS) adaptive feedback canceller is proposed that provides good cancellation efficiency, convergence behavior, and more efficient hardware complexity when compared to the time domain LMS approach.
{"title":"A modified fast block LMS acoustic feedback cancellation for hearing aids","authors":"H. Charafeddine, V. Groza","doi":"10.1109/SACI.2012.6249993","DOIUrl":"https://doi.org/10.1109/SACI.2012.6249993","url":null,"abstract":"Conventional adaptive feedback cancellers (FBC) exhibit poor performance for acoustic leakage reduction in hearing aids. In this paper, a modified frequency domain fast block least mean square (LMS) adaptive feedback canceller is proposed that provides good cancellation efficiency, convergence behavior, and more efficient hardware complexity when compared to the time domain LMS approach.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128381809","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 : 2012-05-24DOI: 10.1109/SACI.2012.6250031
K. Molnár, Z. Horváth
MNOS memory hysteresis curves are simulated by integrating the difference of the current via the oxide and nitride layer. The effect of the oxide and nitride thickness as well as the depth of charge centeroid is studied. The results indicate that the optimal oxide thickness is about 2 nm. A thin nitride layer decreases the efficiency of the injected charge. It has been obtained that the possible highest memory window width decreases monotonically with increasing depth of charge centroid.
{"title":"Simulation of MNOS memory hysteresis - Effect of layer thicknesses","authors":"K. Molnár, Z. Horváth","doi":"10.1109/SACI.2012.6250031","DOIUrl":"https://doi.org/10.1109/SACI.2012.6250031","url":null,"abstract":"MNOS memory hysteresis curves are simulated by integrating the difference of the current via the oxide and nitride layer. The effect of the oxide and nitride thickness as well as the depth of charge centeroid is studied. The results indicate that the optimal oxide thickness is about 2 nm. A thin nitride layer decreases the efficiency of the injected charge. It has been obtained that the possible highest memory window width decreases monotonically with increasing depth of charge centroid.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131926417","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 : 2012-05-24DOI: 10.1109/SACI.2012.6250012
Patrik Emanuel Mezö, M. Vladutiu, L. Prodan
Current mailing systems have adopted a server-centric model in handling email traffic over the Internet. Although the traditional mailing providers employ a large number of servers where mail operations are evenly distributed, all the emails are routed to a central gateway, resulting in accessibility issues if the gateway link is severed. Moreover, the necessity of having dedicated buildings and trained personnel for handling large email operations and network traffic is unavoidable. This paper introduces a new mailing architecture design by combining our research activities on developing a hierarchical Peer-to-Peer (P2P) framework and resource evaluation methods of a certain peer in the network. We also group users according to their geographical distribution for assuring a load-balance in network traffic regarding email operations and present a way that helps the traditional mailing architecture rely on certain Peer-to-Peer decision blocks.
{"title":"HMail: A hybrid mailing system based on the collaboration between traditional and Peer-to-Peer mailing architectures","authors":"Patrik Emanuel Mezö, M. Vladutiu, L. Prodan","doi":"10.1109/SACI.2012.6250012","DOIUrl":"https://doi.org/10.1109/SACI.2012.6250012","url":null,"abstract":"Current mailing systems have adopted a server-centric model in handling email traffic over the Internet. Although the traditional mailing providers employ a large number of servers where mail operations are evenly distributed, all the emails are routed to a central gateway, resulting in accessibility issues if the gateway link is severed. Moreover, the necessity of having dedicated buildings and trained personnel for handling large email operations and network traffic is unavoidable. This paper introduces a new mailing architecture design by combining our research activities on developing a hierarchical Peer-to-Peer (P2P) framework and resource evaluation methods of a certain peer in the network. We also group users according to their geographical distribution for assuring a load-balance in network traffic regarding email operations and present a way that helps the traditional mailing architecture rely on certain Peer-to-Peer decision blocks.","PeriodicalId":293436,"journal":{"name":"2012 7th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129077605","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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