In this paper, is use a field programmable gate array (FPGA) to implement an information-maximization (Infomax) algorithm to blind source separation (BSS). In this work, we show the neural network architecture for several inputs and the performance of its hardware implementation. We achieve simulations results similar as estimated in MATLAB. Some simulations results using VHDL are presented using music and voice recorded. The study of performance is made in a net of 2 times 2.
{"title":"Implementation of Infomax ICA Algorithm for Blind Source Separation","authors":"L. Moreno, M. Arce, J. G. Lamont","doi":"10.1109/CERMA.2008.37","DOIUrl":"https://doi.org/10.1109/CERMA.2008.37","url":null,"abstract":"In this paper, is use a field programmable gate array (FPGA) to implement an information-maximization (Infomax) algorithm to blind source separation (BSS). In this work, we show the neural network architecture for several inputs and the performance of its hardware implementation. We achieve simulations results similar as estimated in MATLAB. Some simulations results using VHDL are presented using music and voice recorded. The study of performance is made in a net of 2 times 2.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121151115","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}
R. Trasvia, G. Gutiérrez-Alcaraz, F. Martínez-Cárdenas
Unit commitment (UC) has been used in the vertically integrated electric industry for scheduling units to meet the demand at minimum costs. In this paper, the authors describe a parallel implementation of the Lagrangian relaxation algorithm. The algorithm has been implemented in Matlab.
{"title":"Lagrangian Relaxation Unit Commitment by Parallel Processing","authors":"R. Trasvia, G. Gutiérrez-Alcaraz, F. Martínez-Cárdenas","doi":"10.1109/CERMA.2008.83","DOIUrl":"https://doi.org/10.1109/CERMA.2008.83","url":null,"abstract":"Unit commitment (UC) has been used in the vertically integrated electric industry for scheduling units to meet the demand at minimum costs. In this paper, the authors describe a parallel implementation of the Lagrangian relaxation algorithm. The algorithm has been implemented in Matlab.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127106403","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}
This work focuses on some aspects of automatic text processing by using a metric named po defined in a working prototype WIB (Web Intelligent Browser). The word weighting generated by this metric is defined with morphosyntactic considerations and allows the categorization of text words in fuzzy clusters. This weighting could also be used as a model of the original text at a sentence and paragraph level. A case study is presented here to help analyze the interpretation of the categories.
{"title":"Automatic Text Processing for Spanish Texts","authors":"M. Daniela, López De Luise, M. Soffer","doi":"10.1109/CERMA.2008.50","DOIUrl":"https://doi.org/10.1109/CERMA.2008.50","url":null,"abstract":"This work focuses on some aspects of automatic text processing by using a metric named po defined in a working prototype WIB (Web Intelligent Browser). The word weighting generated by this metric is defined with morphosyntactic considerations and allows the categorization of text words in fuzzy clusters. This weighting could also be used as a model of the original text at a sentence and paragraph level. A case study is presented here to help analyze the interpretation of the categories.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127440199","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}
Z. Pineda-Rico, G. Dieck-Assad, S. Martínez-Chapa, A. Ávila-Ortega
Handheld electrolarynx is a popular device used to produce voice by laryngectomized patients. A switching capacitor CMOS based device for hands free electrolarynx activation using electromyographic signals, is proposed. The prototype intends to give laryngectomized patients an option to produce voice in a more comfortable and natural way. The prototype is designed to be implanted as a low voltage microchip for automatic activation of any electrolarynx by using the myoelectric signals exhibited by muscles. The prototype system exhibits an excellent simulated performance from the bioamplifier through the activation microcontroller using a simulated electromyographic signal.
{"title":"A Switching Capacitor CMOS Based Device for Hands-Free Electrolarynx Activation Using Electromyographic Signals","authors":"Z. Pineda-Rico, G. Dieck-Assad, S. Martínez-Chapa, A. Ávila-Ortega","doi":"10.1109/CERMA.2008.38","DOIUrl":"https://doi.org/10.1109/CERMA.2008.38","url":null,"abstract":"Handheld electrolarynx is a popular device used to produce voice by laryngectomized patients. A switching capacitor CMOS based device for hands free electrolarynx activation using electromyographic signals, is proposed. The prototype intends to give laryngectomized patients an option to produce voice in a more comfortable and natural way. The prototype is designed to be implanted as a low voltage microchip for automatic activation of any electrolarynx by using the myoelectric signals exhibited by muscles. The prototype system exhibits an excellent simulated performance from the bioamplifier through the activation microcontroller using a simulated electromyographic signal.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126953124","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}
In the neutron spectrometry and dosimetry research areas by means of the Bonner spheres spectrometric system utilizing classical approaches, such as Montecarlo, parametrization and iterative procedures, the weight, time consuming procedure, the need to use an unfolding procedure, the low resolution spectrum, and the need to use the neutron fluence-to-dose conversion coefficients for calculating the equivalent doses are some drawbacks which these approaches offer. Each of the mentioned difficulties has motivated the development of complementary procedures such as maximum entropy, genetic algorithms and artificial neural networks. The use of neural networks to unfold neutron spectra and to calculate equivalent doses from the count rates measured with BSS system has become in an alternative procedure, which has been applied with success, however, it is observed that doesn't exist computer tools based on ANN technology to unfold neutron spectra and to calculate equivalent doses. In this work a customized front end user interface software application, called Neutron Spectrometry and Dosimetry by means of Artificial Neural Networks (NSDANN) based on ANN technology, is presented, which is capable to unfold neutron spectra and to simultaneously calculate 13 equivalent doses, by using only the count rates of a BBS system, in just a few seconds.
{"title":"A New Computer Tool Based on ANN Technology, Applied in Neutron Spectrometry and Dosimetry Research Areas","authors":"M.-B. Rosario, O.-R.J. Manuel, V.-C.H. Rene","doi":"10.1109/CERMA.2008.106","DOIUrl":"https://doi.org/10.1109/CERMA.2008.106","url":null,"abstract":"In the neutron spectrometry and dosimetry research areas by means of the Bonner spheres spectrometric system utilizing classical approaches, such as Montecarlo, parametrization and iterative procedures, the weight, time consuming procedure, the need to use an unfolding procedure, the low resolution spectrum, and the need to use the neutron fluence-to-dose conversion coefficients for calculating the equivalent doses are some drawbacks which these approaches offer. Each of the mentioned difficulties has motivated the development of complementary procedures such as maximum entropy, genetic algorithms and artificial neural networks. The use of neural networks to unfold neutron spectra and to calculate equivalent doses from the count rates measured with BSS system has become in an alternative procedure, which has been applied with success, however, it is observed that doesn't exist computer tools based on ANN technology to unfold neutron spectra and to calculate equivalent doses. In this work a customized front end user interface software application, called Neutron Spectrometry and Dosimetry by means of Artificial Neural Networks (NSDANN) based on ANN technology, is presented, which is capable to unfold neutron spectra and to simultaneously calculate 13 equivalent doses, by using only the count rates of a BBS system, in just a few seconds.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115348443","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}
This article briefly explains the lateral vehicle dynamics and upgrades a two wheel vehicle model adding the dynamics of roll, tire relaxation and wheels induced angles. The state equations of the resulting model are given. A bond graph model is build step by step from the resulting equations in order to have a base model to facilitate analysis, simulation and further developments.
{"title":"Modeling a Vehicle Using Bond Graphs","authors":"E. Sandoval","doi":"10.1109/CERMA.2008.41","DOIUrl":"https://doi.org/10.1109/CERMA.2008.41","url":null,"abstract":"This article briefly explains the lateral vehicle dynamics and upgrades a two wheel vehicle model adding the dynamics of roll, tire relaxation and wheels induced angles. The state equations of the resulting model are given. A bond graph model is build step by step from the resulting equations in order to have a base model to facilitate analysis, simulation and further developments.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"72 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114123722","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}
In order to improve the chances of recovery of young patients suffering from hypoacusia, it is necessary to conduct hearing diagnostic tests during the first 3 to 6 moths after birth. However, for instance, in rural areas of Mexico where there is little or null access to specialized equipment, it is common to find that patients are not diagnosed until the patientspsila diminished hearing capacity has impaired their speech development as well as their and social and school integration. This paper presents the design and construction of the EEG-ITM03 EEG auditory evoked potential data acquisition system intended for diagnostic of hypoacusia. The EEG data acquisition system was tested on 5 healthy young adults and the results were compared to those obtained using a commercial equipment (CADWELL 7200). The results show that the early brain stem evoked potential latencies, related to the hearing process can be detected, even when the system is operated in non-ideal locations for conducting hearing tests. Thus the results suggest that the equipment can be used in clinics without special facilities (i.e. sound proof rooms) as part of routine diagnostic activities.
{"title":"Design and Construction of an EEG Data Acquisition System for Measurement of Auditory Evoked Potentials","authors":"J. Gnecchi, L.R.S. Lara, J.C.H. Garcia","doi":"10.1109/CERMA.2008.86","DOIUrl":"https://doi.org/10.1109/CERMA.2008.86","url":null,"abstract":"In order to improve the chances of recovery of young patients suffering from hypoacusia, it is necessary to conduct hearing diagnostic tests during the first 3 to 6 moths after birth. However, for instance, in rural areas of Mexico where there is little or null access to specialized equipment, it is common to find that patients are not diagnosed until the patientspsila diminished hearing capacity has impaired their speech development as well as their and social and school integration. This paper presents the design and construction of the EEG-ITM03 EEG auditory evoked potential data acquisition system intended for diagnostic of hypoacusia. The EEG data acquisition system was tested on 5 healthy young adults and the results were compared to those obtained using a commercial equipment (CADWELL 7200). The results show that the early brain stem evoked potential latencies, related to the hearing process can be detected, even when the system is operated in non-ideal locations for conducting hearing tests. Thus the results suggest that the equipment can be used in clinics without special facilities (i.e. sound proof rooms) as part of routine diagnostic activities.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114562646","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}
E.F. Flores, R. Santos, V. R. Licea, M. Garcia-Ruiz, A. E. Block
The application of wireless local area networks has significantly increased in the last decade, and the 802.11x standards have directed this exponential growth. However, the need to cover greater areas at higher transmission speeds gave rise to the 802.16x standards. These new standards provide the necessary guidelines that establish coverage, transmission capacities, types and quality of services. The technologies required to implement the 802.16x standards, however, are much more costly than traditional WLANs. This work proposes a MAC layer mechanism that increases the coverage area of wireless broadband networks that does not require increased physical infrastructure.
{"title":"MAC Layer Mechanism for Wireless WiMAX Networks with Mesh Topology","authors":"E.F. Flores, R. Santos, V. R. Licea, M. Garcia-Ruiz, A. E. Block","doi":"10.1109/CERMA.2008.22","DOIUrl":"https://doi.org/10.1109/CERMA.2008.22","url":null,"abstract":"The application of wireless local area networks has significantly increased in the last decade, and the 802.11x standards have directed this exponential growth. However, the need to cover greater areas at higher transmission speeds gave rise to the 802.16x standards. These new standards provide the necessary guidelines that establish coverage, transmission capacities, types and quality of services. The technologies required to implement the 802.16x standards, however, are much more costly than traditional WLANs. This work proposes a MAC layer mechanism that increases the coverage area of wireless broadband networks that does not require increased physical infrastructure.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121994190","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}
E. A. Merchán-Cruz, G. Urriolagoitia-Sosa, J. Ramírez-Gordillo, R. Rodríguez-Cañizo, I.Y. Campos-Padilla, J. J. Muñoz-César, E. Lugo-González
This paper presents a strategy to modify, on "the fly", the initial population size of a genetic algorithm based trajectory planner for robot manipulators sharing a common workspace. Firstly, some considerations on the effect of varying the population size of the initial population size of the GA over the performance of the obtained paths are investigated. Finally, a fuzzy unit is implemented to adaptively modify the population size accordingly to the navigation conditions of the manipulator system, such as the magnitude of the potential field (used to model the manipulators as moving obstacles), error to goal, and whether or not the manipulators are moving along a stable trajectory. The considered cases correspond to two redundant dual manipulator systems, consisting of two 3 degrees of freedom (dof) and two 7 DOF planar manipulators.
{"title":"GA Based Trajectory Planner for Robot Manipulators Sharing a Common Workspace with Adaptive Population Size","authors":"E. A. Merchán-Cruz, G. Urriolagoitia-Sosa, J. Ramírez-Gordillo, R. Rodríguez-Cañizo, I.Y. Campos-Padilla, J. J. Muñoz-César, E. Lugo-González","doi":"10.1109/CERMA.2008.65","DOIUrl":"https://doi.org/10.1109/CERMA.2008.65","url":null,"abstract":"This paper presents a strategy to modify, on \"the fly\", the initial population size of a genetic algorithm based trajectory planner for robot manipulators sharing a common workspace. Firstly, some considerations on the effect of varying the population size of the initial population size of the GA over the performance of the obtained paths are investigated. Finally, a fuzzy unit is implemented to adaptively modify the population size accordingly to the navigation conditions of the manipulator system, such as the magnitude of the potential field (used to model the manipulators as moving obstacles), error to goal, and whether or not the manipulators are moving along a stable trajectory. The considered cases correspond to two redundant dual manipulator systems, consisting of two 3 degrees of freedom (dof) and two 7 DOF planar manipulators.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128554898","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}
I. Lopez-Yaez, C. Yaez-Marquez, G. D. L. Saenz-Morales
Analysis of environmental data by means of Artificial Intelligence has become a quite active area of scientific research. Some techniques which have found important application in this area are neural networks, genetic algorithms, and other pattern classifier algorithms, such as SVMs. In the current paper, a member of the Associative Approach of pattern recognition of recent proposal is applied to environmental data from Mexico City.
{"title":"Application of the Gamma Classifier to Environmental Data Prediction","authors":"I. Lopez-Yaez, C. Yaez-Marquez, G. D. L. Saenz-Morales","doi":"10.1109/CERMA.2008.35","DOIUrl":"https://doi.org/10.1109/CERMA.2008.35","url":null,"abstract":"Analysis of environmental data by means of Artificial Intelligence has become a quite active area of scientific research. Some techniques which have found important application in this area are neural networks, genetic algorithms, and other pattern classifier algorithms, such as SVMs. In the current paper, a member of the Associative Approach of pattern recognition of recent proposal is applied to environmental data from Mexico City.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124304382","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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