Catalán Salgado, Edgar A, Argüelles Cruz, Amadeo José
An associative memory is a system that relates input patterns and output patterns, furthermore is able to recover the output vector associated although the input pattern was contaminated by some kind of noise. Alpha beta associative memories are robust to subtractive and additive noise and are one of the fastest associative memories besides other qualities. In this paper we show a way to reduce the number of operations in the learning phase. The operation alpha used in the learning phase allow us to propose 8 theorems; with those theorems is possible to construct an alternative learning method. By this method, the number of alpha operations needed to learning each pattern is reduced and replaced by assignations, furthermore we also eliminate the min and max operations. This reduces the learning time drastically with either big dimension patterns or a big number of patterns.
{"title":"Simplification of the Learning Phase in the Alpha-Beta Associative Memories","authors":"Catalán Salgado, Edgar A, Argüelles Cruz, Amadeo José","doi":"10.1109/CERMA.2008.72","DOIUrl":"https://doi.org/10.1109/CERMA.2008.72","url":null,"abstract":"An associative memory is a system that relates input patterns and output patterns, furthermore is able to recover the output vector associated although the input pattern was contaminated by some kind of noise. Alpha beta associative memories are robust to subtractive and additive noise and are one of the fastest associative memories besides other qualities. In this paper we show a way to reduce the number of operations in the learning phase. The operation alpha used in the learning phase allow us to propose 8 theorems; with those theorems is possible to construct an alternative learning method. By this method, the number of alpha operations needed to learning each pattern is reduced and replaced by assignations, furthermore we also eliminate the min and max operations. This reduces the learning time drastically with either big dimension patterns or a big number of patterns.","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":"130520449","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. López, P. A. Alvarez-Carrillo, E. Fernández-González
Exploring the Web in search of relevant information is a difficult task due to the vast amount of documents it stores and to the heterogeneity of such documents. Using automated systems such as search engines help users cope with the size of the Web. However the results produced by these systems usually contain documents from a large variety of topics with little or no relevance to the end user. In this work, we propose a model that can be used by a Web spider to selectively explore the Web for relevant documents. In this model, two criteria are used for assessing document relevance; content and structure. These two criteria are integrated in a fuzzy predicate that indicates the degree of relevance of a document with respect to a user-defined topic. The parameters of the proposed model are generated by a genetic algorithm that solves a bi-criteria optimization problem.
{"title":"An Evolutionary Model for Measuring Document Relevance in a Focused Web Spider","authors":"I. López, P. A. Alvarez-Carrillo, E. Fernández-González","doi":"10.1109/CERMA.2008.28","DOIUrl":"https://doi.org/10.1109/CERMA.2008.28","url":null,"abstract":"Exploring the Web in search of relevant information is a difficult task due to the vast amount of documents it stores and to the heterogeneity of such documents. Using automated systems such as search engines help users cope with the size of the Web. However the results produced by these systems usually contain documents from a large variety of topics with little or no relevance to the end user. In this work, we propose a model that can be used by a Web spider to selectively explore the Web for relevant documents. In this model, two criteria are used for assessing document relevance; content and structure. These two criteria are integrated in a fuzzy predicate that indicates the degree of relevance of a document with respect to a user-defined topic. The parameters of the proposed model are generated by a genetic algorithm that solves a bi-criteria optimization problem.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"56 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":"124170139","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}
J.M. Gomez, G. Alor-Hernández, R. Posada-Gómez, I. Rivera, M. Mencke, J. Chamizo, F. G. Sánchez, I. Toma
The Grid is becoming a significantly important vehicle for business transactions by means of service-oriented architecture (SOA). In that direction, the Open Grid Services Architecture (OGSA) is a prominent initiative that aims at providing a standardised set of capabilities and behaviours that address key concerns in Grid systems. However, the challenge remains in harnessing the potential of Grid trading partners to communicate in a meaningful way. In this paper, we present GIST, a grid services conversation language that fosters formal behavioural specifications, based on GECO, a fully-fledged architecture and proof-of-concept execution environment implementation.
{"title":"GIST: Grid Services Conversation Language","authors":"J.M. Gomez, G. Alor-Hernández, R. Posada-Gómez, I. Rivera, M. Mencke, J. Chamizo, F. G. Sánchez, I. Toma","doi":"10.1109/CERMA.2008.36","DOIUrl":"https://doi.org/10.1109/CERMA.2008.36","url":null,"abstract":"The Grid is becoming a significantly important vehicle for business transactions by means of service-oriented architecture (SOA). In that direction, the Open Grid Services Architecture (OGSA) is a prominent initiative that aims at providing a standardised set of capabilities and behaviours that address key concerns in Grid systems. However, the challenge remains in harnessing the potential of Grid trading partners to communicate in a meaningful way. In this paper, we present GIST, a grid services conversation language that fosters formal behavioural specifications, based on GECO, a fully-fledged architecture and proof-of-concept execution environment implementation.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"73 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":"130999716","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}
J. Ramírez-Gordillo, E. A. Merchán-Cruz, E. Lugo-González, R. Ponce-Reynoso, R.G. Rodiguez-Canizo, G. Urriolagoitia-Sosa, B. Subudhi
This paper presents the construction of the artificial potential field based on discrete solution to the Laplace equation (Laplacian artificial potential field, LAPF), for path planning of robotic manipulators in two-dimensional and three-dimensional representations of the configuration space (C-space). In general, the characterization of the manipulator's workspace using the LAPF derives in obtaining a local minima space free when considering the combination of the manipulator's goal (position / orientation) as an attractive potential while obstacles are modeled as repulsive potentials.In addition it is shown the construction of three-dimensional configurations space, for a three-degree of freedom planar manipulator, with different arrangements stationary obstacles, of punctual type and bar type. In order to show the complexity of the space planning into the configuration space, as a result of the mapping of the obstacles within the manipulator's workspace not homogeneous to their representation in the joint's space.
{"title":"The Laplacian Artificial Potential Field (LAPF) for the Path Planning of Robotic Manipulators","authors":"J. Ramírez-Gordillo, E. A. Merchán-Cruz, E. Lugo-González, R. Ponce-Reynoso, R.G. Rodiguez-Canizo, G. Urriolagoitia-Sosa, B. Subudhi","doi":"10.1109/CERMA.2008.66","DOIUrl":"https://doi.org/10.1109/CERMA.2008.66","url":null,"abstract":"This paper presents the construction of the artificial potential field based on discrete solution to the Laplace equation (Laplacian artificial potential field, LAPF), for path planning of robotic manipulators in two-dimensional and three-dimensional representations of the configuration space (C-space). In general, the characterization of the manipulator's workspace using the LAPF derives in obtaining a local minima space free when considering the combination of the manipulator's goal (position / orientation) as an attractive potential while obstacles are modeled as repulsive potentials.In addition it is shown the construction of three-dimensional configurations space, for a three-degree of freedom planar manipulator, with different arrangements stationary obstacles, of punctual type and bar type. In order to show the complexity of the space planning into the configuration space, as a result of the mapping of the obstacles within the manipulator's workspace not homogeneous to their representation in the joint's space.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"82 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":"114329047","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}
O.R. Flotte-Hernandez, A. Pineda-Olivares, G. Dieck-Assad, A. Ávila-Ortega, S. Martínez-Chapa, F. Bouchereau-Lara
This paper develops an active noise control system (ANC) prototype to be used over a duct network model. The FX-LMS and FBFX-LMS algorithms were implemented using the TMS320C50 fixed point DSP system. Test results show that the FX-LMS algorithm achieves attenuations of up to 43 dB (at 300 Hz) and a mean attenuation of 38.72 dB for frequencies from 100 to 450 Hz. On the other hand, the FBFX-LMS algorithm achieves a mean attenuation of 31.52 dB for the frequency range from 100 to 450 Hz. Moreover, the step size parameter mu was optimized experimentally to obtain the maximum possible attenuation in the frequency range from 100 to 500 Hz. The best possible value for mu was 2048 and the optimized number of filter coefficients was M=128. Finally, the performance analysis illustrates the simplicity of the fixed point DSP solution in the ANC duct network noise cancellation systems.
{"title":"On the Performance of Active Noise Control FX-LMS and FBFX-LMS Algorithms for Duct Network Noise Attenuation","authors":"O.R. Flotte-Hernandez, A. Pineda-Olivares, G. Dieck-Assad, A. Ávila-Ortega, S. Martínez-Chapa, F. Bouchereau-Lara","doi":"10.1109/CERMA.2008.30","DOIUrl":"https://doi.org/10.1109/CERMA.2008.30","url":null,"abstract":"This paper develops an active noise control system (ANC) prototype to be used over a duct network model. The FX-LMS and FBFX-LMS algorithms were implemented using the TMS320C50 fixed point DSP system. Test results show that the FX-LMS algorithm achieves attenuations of up to 43 dB (at 300 Hz) and a mean attenuation of 38.72 dB for frequencies from 100 to 450 Hz. On the other hand, the FBFX-LMS algorithm achieves a mean attenuation of 31.52 dB for the frequency range from 100 to 450 Hz. Moreover, the step size parameter mu was optimized experimentally to obtain the maximum possible attenuation in the frequency range from 100 to 500 Hz. The best possible value for mu was 2048 and the optimized number of filter coefficients was M=128. Finally, the performance analysis illustrates the simplicity of the fixed point DSP solution in the ANC duct network noise cancellation systems.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"53 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":"123930871","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 this paper, a weightless neural network model is presented, based on the known operations Alpha and Beta. This weightless Alpha-Beta neural network model is called CAINN - Computing Artificial Intelligence Neural Network.The CAINN's pattern learning and recalling algorithms are created given the Generalized Alpha, Sigma-Alpha, and Sigma-Beta operations, based on the ADAM weightless neural network model. Studies of the CAINN performance are shown. These studies report the reliability of the CAINN model.
{"title":"CAINN - Weightless Alpha-Beta Neural Network","authors":"A. Alarcón-Paredes, A. Arguelles-Cruz","doi":"10.1109/CERMA.2008.94","DOIUrl":"https://doi.org/10.1109/CERMA.2008.94","url":null,"abstract":"In this paper, a weightless neural network model is presented, based on the known operations Alpha and Beta. This weightless Alpha-Beta neural network model is called CAINN - Computing Artificial Intelligence Neural Network.The CAINN's pattern learning and recalling algorithms are created given the Generalized Alpha, Sigma-Alpha, and Sigma-Beta operations, based on the ADAM weightless neural network model. Studies of the CAINN performance are shown. These studies report the reliability of the CAINN model.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"8 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":"115450413","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 paper is dedicated to the cumulant analysis of the Rossler attractor, based on the so-called "degenerate cumulant equations method." The approach is ilustrated by the calculus of the first cumulants, which are necessary to create an approximation of the probability density function (PDF), applying the Gramm-Charlier series, the model distribution method, etc. An approximate method for the variance calculation at the output of the Rossler strange attractor is shown.
{"title":"Cumulant Analysis of Rössler Attractor: Analytical Study","authors":"L. Beltrán, V. Kontorovich, Z. Lovtchikova","doi":"10.1109/CERMA.2008.34","DOIUrl":"https://doi.org/10.1109/CERMA.2008.34","url":null,"abstract":"This paper is dedicated to the cumulant analysis of the Rossler attractor, based on the so-called \"degenerate cumulant equations method.\" The approach is ilustrated by the calculus of the first cumulants, which are necessary to create an approximation of the probability density function (PDF), applying the Gramm-Charlier series, the model distribution method, etc. An approximate method for the variance calculation at the output of the Rossler strange attractor is shown.","PeriodicalId":126172,"journal":{"name":"2008 Electronics, Robotics and Automotive Mechanics Conference (CERMA '08)","volume":"27 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":"123474232","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}
To assure collision-free movement of an avatar in a collaborative virtual environment (CVE), a collision management scheme must be present to prevent avatars from trespassing on the LocalSpace of obstacles and other avatars. Furthermore, this scheme must provide tools for collision-free linear, as well as, curvilinear motion. This paper seeks to extend the linear concept of horizontal collision detection for Avatar with Avatar to include curvilinear motion.
{"title":"A Curvilinear Collision Detection Scheme for Avatars in Motion in a Collaborative Virtual Environment","authors":"C. Sudama, Z. Sakr","doi":"10.1109/CERMA.2008.59","DOIUrl":"https://doi.org/10.1109/CERMA.2008.59","url":null,"abstract":"To assure collision-free movement of an avatar in a collaborative virtual environment (CVE), a collision management scheme must be present to prevent avatars from trespassing on the LocalSpace of obstacles and other avatars. Furthermore, this scheme must provide tools for collision-free linear, as well as, curvilinear motion. This paper seeks to extend the linear concept of horizontal collision detection for Avatar with Avatar to include curvilinear motion.","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":"128986117","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}
The oil industries in the entire World and particularly in Mexico, have been taking an important relevance. There are two major challenges in this industry. The first one is the exploration and utilization of crude oil in deep sea, the second one is the scarce of light crude, the actual production report an increment of heavy crude, generating corrosion steel in the extraction and refinement processes. This paper presents an intelligent system to design conceptual steels considering its properties, taking into account some properties of oil crude and the temperature of the refinement process. The results provide information to choice the correct steel for every refinement phase.
{"title":"Conceptual Design of Carbon Steels to Support Heavy Crude Refinement Using Neural Network Modeling and Evolutionary Optimization","authors":"L. Torres-Treviño, A. Reyes-Valdes","doi":"10.1109/CERMA.2008.33","DOIUrl":"https://doi.org/10.1109/CERMA.2008.33","url":null,"abstract":"The oil industries in the entire World and particularly in Mexico, have been taking an important relevance. There are two major challenges in this industry. The first one is the exploration and utilization of crude oil in deep sea, the second one is the scarce of light crude, the actual production report an increment of heavy crude, generating corrosion steel in the extraction and refinement processes. This paper presents an intelligent system to design conceptual steels considering its properties, taking into account some properties of oil crude and the temperature of the refinement process. The results provide information to choice the correct steel for every refinement phase.","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":"125540456","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}
J.G. Cebada-Reyes, P. Sánchez-Sánchez, A. Michua-Camarillo, F. Reyes‐Cortes, E. Lopez-Perez
The main objective of this paper is to introduce a simulation platform in order to evaluate a control structures using the performance index; additionally, the simulator has the capacity of described the behavior of the prototype according to the control structure that is evaluated showing the results in graphical form.
{"title":"Creation of a Simulator to Evaluate the Performance Index of Control Structures Applied to a Robot of Two Degrees of Freedom","authors":"J.G. Cebada-Reyes, P. Sánchez-Sánchez, A. Michua-Camarillo, F. Reyes‐Cortes, E. Lopez-Perez","doi":"10.1109/CERMA.2008.101","DOIUrl":"https://doi.org/10.1109/CERMA.2008.101","url":null,"abstract":"The main objective of this paper is to introduce a simulation platform in order to evaluate a control structures using the performance index; additionally, the simulator has the capacity of described the behavior of the prototype according to the control structure that is evaluated showing the results in graphical form.","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":"122009430","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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