This paper presents a method for numerical solution of Markov-chain based models of dynamic load balancing schemes for cloud clusters. These schemes were presented in detail in earlier publications. Here we are describing the fast converging iterative solution of a class of such models. The numerical solution of the dynamic load-balancing models by computer solvers proved to be problematic if not applicable due to its computational instability. Other numerical methods available for solving Markov chains relay on constant transition rates or at least on rates that are not depending on the state probabilities. The proposed method combines analytical approach with the simple computations based on electronic tables and gives a solution in just a few iteration steps. It is designed especially for Markov chains in which transition rates are functions of the steady-state probabilities -- and that is the case of most dynamic load balancing schemes. The simplicity of this numerical method allows to compute the parameters for vast modeling space thus providing a broad picture of cloud servers' performance.
{"title":"Numerical Solution of Cloud Servicing Models","authors":"V. Georgiev","doi":"10.1109/MCSI.2014.49","DOIUrl":"https://doi.org/10.1109/MCSI.2014.49","url":null,"abstract":"This paper presents a method for numerical solution of Markov-chain based models of dynamic load balancing schemes for cloud clusters. These schemes were presented in detail in earlier publications. Here we are describing the fast converging iterative solution of a class of such models. The numerical solution of the dynamic load-balancing models by computer solvers proved to be problematic if not applicable due to its computational instability. Other numerical methods available for solving Markov chains relay on constant transition rates or at least on rates that are not depending on the state probabilities. The proposed method combines analytical approach with the simple computations based on electronic tables and gives a solution in just a few iteration steps. It is designed especially for Markov chains in which transition rates are functions of the steady-state probabilities -- and that is the case of most dynamic load balancing schemes. The simplicity of this numerical method allows to compute the parameters for vast modeling space thus providing a broad picture of cloud servers' performance.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115070145","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}
Graphical passwords have been proposed as an alternative to textual passwords, due to its complexity that users are having in remembering their password combination. Graphical password was introduced by Blonder in 1996, which was easier to remember because of its graphical content. Therefore usability and memo ability are improved. In this paper, we propose and develop a new graphical password called GPBSDI (Graphical Password Based on Sub and Decoy Images) for user authentication.
图形密码被提议作为文本密码的替代品，因为用户在记忆密码组合时很复杂。图形密码由Blonder于1996年推出，由于其图形内容更容易记忆。因此提高了可用性和备忘能力。本文提出并开发了一种新的用户认证图形密码GPBSDI (graphic password Based on Sub and Decoy Images)。
{"title":"A New Graphical Password Based on Decoy Image Portions (GP-DIP)","authors":"Mohsin R. Albayati, Arash Habibi Lashkari","doi":"10.1109/MCSI.2014.21","DOIUrl":"https://doi.org/10.1109/MCSI.2014.21","url":null,"abstract":"Graphical passwords have been proposed as an alternative to textual passwords, due to its complexity that users are having in remembering their password combination. Graphical password was introduced by Blonder in 1996, which was easier to remember because of its graphical content. Therefore usability and memo ability are improved. In this paper, we propose and develop a new graphical password called GPBSDI (Graphical Password Based on Sub and Decoy Images) for user authentication.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114812376","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 provides a novel characterization of nested complexes in protein interaction networks, stressing definition and representation issues, quantification, biological validation, network metrics, motifs, modularity and gene ontology (GO) terms. This characterization can be used in the design of a nested protein complex prediction algorithm. We introduce the "nested group" concept as a way to represent nested complexes. We also show that enrichment in essential proteins, GO terms related to regulation, imperfect 5-clique motifs, as well as higher GO homogeneity, can be used to identify proteins in nested complexes. Supplementary materials, data and programs are available at http://faculty.uaeu.ac.ae/nzaki/Research.htm.
{"title":"Characterization of Nested Complexes in Protein Interaction Networks","authors":"N. Zaki, Antonio Mora","doi":"10.1109/MCSI.2014.17","DOIUrl":"https://doi.org/10.1109/MCSI.2014.17","url":null,"abstract":"This paper provides a novel characterization of nested complexes in protein interaction networks, stressing definition and representation issues, quantification, biological validation, network metrics, motifs, modularity and gene ontology (GO) terms. This characterization can be used in the design of a nested protein complex prediction algorithm. We introduce the \"nested group\" concept as a way to represent nested complexes. We also show that enrichment in essential proteins, GO terms related to regulation, imperfect 5-clique motifs, as well as higher GO homogeneity, can be used to identify proteins in nested complexes. Supplementary materials, data and programs are available at http://faculty.uaeu.ac.ae/nzaki/Research.htm.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125065142","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 focuses on heat radiation intensity optimization across the surface of an aluminium mould. The inner mould surface is sprinkled with a special PVC powder and the outer mould surface is warmed by infrared heaters located above the mould. This is an economic way of producing artificial leathers in the automotive industry (e.g. The artificial leather on a car dashboard). The article includes a description of a mathematical model that allows us to calculate the heat radiation intensity across the mould surface for every fixed location of the heaters. We also use this mathematical model to optimize the location of the heaters to provide approximately the same heat radiation intensity across the whole mould surface during the warming of the mould. In this way we obtain a uniform colour tone and material structure of the artificial leather. The problem of optimization is more complicated. Using gradient methods is not suitable because the minimized function contains many local extremes. A differential evolution algorithm is used during the process of optimization. The calculations were performed by a Mat lab code written by the authors. The article contains a practical example including graphical outputs.
{"title":"Differential Evolution and Heat Radiation Intensity Optimization","authors":"J. Mlýnek, R. Srb","doi":"10.1109/MCSI.2014.11","DOIUrl":"https://doi.org/10.1109/MCSI.2014.11","url":null,"abstract":"This article focuses on heat radiation intensity optimization across the surface of an aluminium mould. The inner mould surface is sprinkled with a special PVC powder and the outer mould surface is warmed by infrared heaters located above the mould. This is an economic way of producing artificial leathers in the automotive industry (e.g. The artificial leather on a car dashboard). The article includes a description of a mathematical model that allows us to calculate the heat radiation intensity across the mould surface for every fixed location of the heaters. We also use this mathematical model to optimize the location of the heaters to provide approximately the same heat radiation intensity across the whole mould surface during the warming of the mould. In this way we obtain a uniform colour tone and material structure of the artificial leather. The problem of optimization is more complicated. Using gradient methods is not suitable because the minimized function contains many local extremes. A differential evolution algorithm is used during the process of optimization. The calculations were performed by a Mat lab code written by the authors. The article contains a practical example including graphical outputs.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123810325","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}
Random number generators (RNGs) are one of the key tools necessary for statistical analysis and optimization methods such as Monte Carlo, particle swarm optimization (PSO) and the genetic algorithm. Various pseudo and true RNGs are available today, and they provide sufficient randomness. Unfortunately, they generate data that do not always represent the required distribution accurately, especially when the data length is small. This could possibly threaten the 'repeatability' of an academic study. A novel true RNG (TRNG) using the method of uniform sampling (MUS) is recently proposed. In this work, the Sun's RF emissions MUS-TRNG is comparatively tested with well known pseudo and true RNGs. It is observed that both randomness and very high goodness-of-fit qualities are possible.
{"title":"Goodness-of-Fit and Randomness Tests for the Sun's Emissions True Random Number Generator","authors":"S. G. Tanyer, K. D. Atalay, S. Ç. Inam","doi":"10.1109/MCSI.2014.48","DOIUrl":"https://doi.org/10.1109/MCSI.2014.48","url":null,"abstract":"Random number generators (RNGs) are one of the key tools necessary for statistical analysis and optimization methods such as Monte Carlo, particle swarm optimization (PSO) and the genetic algorithm. Various pseudo and true RNGs are available today, and they provide sufficient randomness. Unfortunately, they generate data that do not always represent the required distribution accurately, especially when the data length is small. This could possibly threaten the 'repeatability' of an academic study. A novel true RNG (TRNG) using the method of uniform sampling (MUS) is recently proposed. In this work, the Sun's RF emissions MUS-TRNG is comparatively tested with well known pseudo and true RNGs. It is observed that both randomness and very high goodness-of-fit qualities are possible.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127911488","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}
S. Valery, I. S. Eugeny, A. Vladimir, M. Elena, M. Svetlana
Modern mathematics is becoming more attractive for the education system because of the possibility to adapt its fundamental structures in applications and development of cognitive and creative abilities of the individual. Such subject are related to fractal geometry, which was "revived to life" by B. Mandelbrot beginning with the 70s of XX century. In this paper, we give applications of the elements of fractal geometry to physics and economics. Namely are investigated the graphical representations of rational mapping attractors and developed algorithms for identifying singularity Yang-Lee - as the Julia set of the renormalization transformation mappings using the programming language Pascal. Using Math Cad as computer algebra environment allows you to find fixed and repelling points of the mapping. We represent the section of code that implements the algorithm to perform the construction of the filling of the Julia set.
{"title":"Visual Modeling and Fractal Methods in Science","authors":"S. Valery, I. S. Eugeny, A. Vladimir, M. Elena, M. Svetlana","doi":"10.1109/MCSI.2014.28","DOIUrl":"https://doi.org/10.1109/MCSI.2014.28","url":null,"abstract":"Modern mathematics is becoming more attractive for the education system because of the possibility to adapt its fundamental structures in applications and development of cognitive and creative abilities of the individual. Such subject are related to fractal geometry, which was \"revived to life\" by B. Mandelbrot beginning with the 70s of XX century. In this paper, we give applications of the elements of fractal geometry to physics and economics. Namely are investigated the graphical representations of rational mapping attractors and developed algorithms for identifying singularity Yang-Lee - as the Julia set of the renormalization transformation mappings using the programming language Pascal. Using Math Cad as computer algebra environment allows you to find fixed and repelling points of the mapping. We represent the section of code that implements the algorithm to perform the construction of the filling of the Julia set.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124498274","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}
Fast computers and sophisticated numerical methods along with sound mathematical models have enabled structural health monitoring to emerge as an efficient means of evaluating the health of a structure and detect any damage to enable appropriate retrofitting. This paper uses vibration based methods to develop and apply techniques to detect the damage in beam and plate structures that form important components in buildings and bridges. The success of this technique will enhance the safety and efficiency of structures and prevent their unexpected and sudden collapse.
{"title":"Structural Health Monitoring -- Use of Mathematics and Computers","authors":"D. Thambiratnam, Henry Shih, T. Chan","doi":"10.1109/MCSI.2014.35","DOIUrl":"https://doi.org/10.1109/MCSI.2014.35","url":null,"abstract":"Fast computers and sophisticated numerical methods along with sound mathematical models have enabled structural health monitoring to emerge as an efficient means of evaluating the health of a structure and detect any damage to enable appropriate retrofitting. This paper uses vibration based methods to develop and apply techniques to detect the damage in beam and plate structures that form important components in buildings and bridges. The success of this technique will enhance the safety and efficiency of structures and prevent their unexpected and sudden collapse.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121743899","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 work a new version of Enhanced Multivariance Products Representation (EMPR) is taken into consideration. Recent researches on the bivariate arrays (i.e., Matrices) have led us to a new scheme which we have called Tridiagonal Matrix Enhanced Multivariate Products Representation (TMEMPR). Therein we have been consecutively using four term EMPR on its bivariate component under different support functions such that the remainder was becoming to have less rank as we proceed until no bivariate component remains. Here however, we focus on denumerably infinite vectors and first appropriately fold them to semi infinite matrices with finite number of denumerable infinite rows, then decompose the resulting infinite matrices via TMEMPR, and at the final stage we unfold each additive term of the representation via unique inversion of the folding procedure we use.
{"title":"Infinite Vector Decomposition in Tridiagonal Matrix Enhanced Multivariance Products Representation (TMEMPR) Perspective","authors":"N. A. Baykara, M. Demiralp","doi":"10.1109/MCSI.2014.25","DOIUrl":"https://doi.org/10.1109/MCSI.2014.25","url":null,"abstract":"In this work a new version of Enhanced Multivariance Products Representation (EMPR) is taken into consideration. Recent researches on the bivariate arrays (i.e., Matrices) have led us to a new scheme which we have called Tridiagonal Matrix Enhanced Multivariate Products Representation (TMEMPR). Therein we have been consecutively using four term EMPR on its bivariate component under different support functions such that the remainder was becoming to have less rank as we proceed until no bivariate component remains. Here however, we focus on denumerably infinite vectors and first appropriately fold them to semi infinite matrices with finite number of denumerable infinite rows, then decompose the resulting infinite matrices via TMEMPR, and at the final stage we unfold each additive term of the representation via unique inversion of the folding procedure we use.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115062061","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 present study aims to analyze static and dynamic models predicting the future typical compressive strength of Portland cements. Both categories of models are based on physical and chemical characteristics and on the early strength of the cement types studied. The models performance was investigated and the superiority of the dynamic models was proved based on different criteria. Additionally the dynamic models offer the possibility to the industrial quality control to evaluate the reactivity of cement compounds in daily basis and to take the corresponding preventive and corrective actions. The implementation of these methods in the daily quality control is an essential factor of quality improvement by maintaining a low variance of typical strength.
{"title":"Application of the Static and Dynamic Models in Predicting the Future Strength of Portland Cements","authors":"D. Tsamatsoulis","doi":"10.1109/MCSI.2014.38","DOIUrl":"https://doi.org/10.1109/MCSI.2014.38","url":null,"abstract":"The present study aims to analyze static and dynamic models predicting the future typical compressive strength of Portland cements. Both categories of models are based on physical and chemical characteristics and on the early strength of the cement types studied. The models performance was investigated and the superiority of the dynamic models was proved based on different criteria. Additionally the dynamic models offer the possibility to the industrial quality control to evaluate the reactivity of cement compounds in daily basis and to take the corresponding preventive and corrective actions. The implementation of these methods in the daily quality control is an essential factor of quality improvement by maintaining a low variance of typical strength.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"292 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114601142","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}
F. Alim-Ferhat, A. Boudjelal, S. Seddiki, B. Hachemi, S. Oudjemia
This paper is motivated by present a new segmentation method that integrates a novel feature, which is able to enhance the dissimilarity between regions. This feature is integrated to formulate a new level set based active contour model, which addresses the segmentation of regions with highly similar intensities, which do not have clear boundaries between them. The power of wavelet transform is adapted to formulate the new feature, named as wavelet energy. In this formulation, the two terms that guide the contour are the wavelet energy incorporated region term and the contour smoothness term. With this formulation, the equations for evolving the contour are derived and implemented in MATLAB. This segmentation method is named Wavelet energy Embedded into a level set method. The experimental results show that the proposed method is able to segment the region of interest that have high similarity in intensities with their background.
{"title":"Wavelet Energy Embedded into a Level Set Method for Medical Images Segmentation in the Presence of Highly Similar Regions","authors":"F. Alim-Ferhat, A. Boudjelal, S. Seddiki, B. Hachemi, S. Oudjemia","doi":"10.1109/MCSI.2014.13","DOIUrl":"https://doi.org/10.1109/MCSI.2014.13","url":null,"abstract":"This paper is motivated by present a new segmentation method that integrates a novel feature, which is able to enhance the dissimilarity between regions. This feature is integrated to formulate a new level set based active contour model, which addresses the segmentation of regions with highly similar intensities, which do not have clear boundaries between them. The power of wavelet transform is adapted to formulate the new feature, named as wavelet energy. In this formulation, the two terms that guide the contour are the wavelet energy incorporated region term and the contour smoothness term. With this formulation, the equations for evolving the contour are derived and implemented in MATLAB. This segmentation method is named Wavelet energy Embedded into a level set method. The experimental results show that the proposed method is able to segment the region of interest that have high similarity in intensities with their background.","PeriodicalId":202841,"journal":{"name":"2014 International Conference on Mathematics and Computers in Sciences and in Industry","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128232724","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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