Proceedings of the 2009 Euro American Conference on Telematics and Information Systems New Opportunities to increase Digital Citizenship - EATIS '09, 2009
Abstract Secure environment is a top-priority for all the forms of grid computing. To establish t... more Abstract Secure environment is a top-priority for all the forms of grid computing. To establish trust, traditional grids use various methods, mostly centrally oriented ones, such as certification authorities, VO management servers or credentials pools. Ad hoc grids are characterized by the absence of a central trust authority; therefore collaborating entities must establish and maintain a trust relationship among themselves.
This paper proposes a model of neural tree architecture with probabilistic neurons. These trees a... more This paper proposes a model of neural tree architecture with probabilistic neurons. These trees are used for classification of a large amount of computer grid resources to classes. The first tree is used for classification of hardware part of dataset. The second tree classifies patterns of software identifiers. Trees are implemented to successfully separate inputs into nine classes of resources. We propose Particle Swarm Optimization model for tasks scheduling in computer grid. We compared time of creation of schedule and time of ...
Proceedings of the Fifth Balkan Conference in Informatics on - BCI '12, 2012
Abstract In a short span of time, cloud computing has grown, particularly for commercial web appl... more Abstract In a short span of time, cloud computing has grown, particularly for commercial web applications. But the cloud computing has the potential to become a greater instrument for scientific computing as well. A pay-as-you-go model with minimal or no upfront costs creates a flexible and cost-effective means to access compute resources. In this paper, we carry out a study of the performance of the spatial data interpolation of depth of the snow cover on the most widely used cloud infrastructure (Amazon Elastic Compute Cloud). The main ...
Abstract: The optimization of the irregular connection network of the multiprocessor systems with... more Abstract: The optimization of the irregular connection network of the multiprocessor systems with the distributed memory is the NP complete problem which is generally compute-intensive process. Graphics processing units provide a large computational power at a very low price allowing the fine-grained parallelism. This work investigates the use of the GPU in the parallelisation of the optimal irregular network configurations up to 128 processors. We used a modified hill climbing optimization technique for finding better solutions for ...
Abstract: Information security, and Cryptography as a part of it, is a critical topic for compute... more Abstract: Information security, and Cryptography as a part of it, is a critical topic for computer science students to understand. Different teaching approaches can be effective in helping the students understand abstract principles. In this paper, we present our approach to Cryptography education that is based on the idea that the stages of growth of the individual might recapitulate the stages of growth of the science. The Cryptography is apprehended as pilot model for further proposal of Computer Science education. Key-Words: History, ...
Proceedings of the International MultiConference of Engineers and Computer Scientists, 2012
Abstract—Trust is an integral part of grid computing systems. Traditional grid environment uses v... more Abstract—Trust is an integral part of grid computing systems. Traditional grid environment uses various, mostly centrally oriented methods for trust establishment, eg certification authorities, VO management servers or credentials pools. On the other side, ad hoc grids demand minimal administrative requirements; especially an absence of a central trust authority, where collaborating entities must establish and maintain a trust relationship among themselves. The paper presents a design of a supported authorization mechanism ...
Proceedings of the 14th WSEAS International Conference on Computers: Latest Trends on Computers, Jul 23, 2010
Abstract: The global warming has an effect on changes of a snow cover over wintertime. This effec... more Abstract: The global warming has an effect on changes of a snow cover over wintertime. This effect is observed in Slovak ski resorts, too. A prediction of these trends is important to build new and keep the existing ski resorts. We are able to analyze the snow cover depth in detail. This analysis is based on many continuous observations and measurements at the specific climatologic stations of Slovak Hydrometeorogical Institute. However, these climatologic stations do not render accurately all ski places, which could be examined. The aim of this ...
WSEAS Transactions on Information Science and Applications, Oct 1, 2010
Abstract: The aim of this work is the depth of the snow cover computing in the desired point base... more Abstract: The aim of this work is the depth of the snow cover computing in the desired point based on the geographical characteristics of a specific geographical point in a modeled area. The measured data are known on few places. These places are coincident with raingauge stations. These data have been collected by many continuous observations and measurements at the specific climatologic raingauging stations of Slovak Hydrometeorogical Institute. An interpolation method is necessary to obtain a representation of real situation ...
Proceedings of the 2009 Euro American Conference on Telematics and Information Systems New Opportunities to increase Digital Citizenship - EATIS '09, 2009
Abstract Secure environment is a top-priority for all the forms of grid computing. To establish t... more Abstract Secure environment is a top-priority for all the forms of grid computing. To establish trust, traditional grids use various methods, mostly centrally oriented ones, such as certification authorities, VO management servers or credentials pools. Ad hoc grids are characterized by the absence of a central trust authority; therefore collaborating entities must establish and maintain a trust relationship among themselves.
This paper proposes a model of neural tree architecture with probabilistic neurons. These trees a... more This paper proposes a model of neural tree architecture with probabilistic neurons. These trees are used for classification of a large amount of computer grid resources to classes. The first tree is used for classification of hardware part of dataset. The second tree classifies patterns of software identifiers. Trees are implemented to successfully separate inputs into nine classes of resources. We propose Particle Swarm Optimization model for tasks scheduling in computer grid. We compared time of creation of schedule and time of ...
Proceedings of the Fifth Balkan Conference in Informatics on - BCI '12, 2012
Abstract In a short span of time, cloud computing has grown, particularly for commercial web appl... more Abstract In a short span of time, cloud computing has grown, particularly for commercial web applications. But the cloud computing has the potential to become a greater instrument for scientific computing as well. A pay-as-you-go model with minimal or no upfront costs creates a flexible and cost-effective means to access compute resources. In this paper, we carry out a study of the performance of the spatial data interpolation of depth of the snow cover on the most widely used cloud infrastructure (Amazon Elastic Compute Cloud). The main ...
Abstract: The optimization of the irregular connection network of the multiprocessor systems with... more Abstract: The optimization of the irregular connection network of the multiprocessor systems with the distributed memory is the NP complete problem which is generally compute-intensive process. Graphics processing units provide a large computational power at a very low price allowing the fine-grained parallelism. This work investigates the use of the GPU in the parallelisation of the optimal irregular network configurations up to 128 processors. We used a modified hill climbing optimization technique for finding better solutions for ...
Abstract: Information security, and Cryptography as a part of it, is a critical topic for compute... more Abstract: Information security, and Cryptography as a part of it, is a critical topic for computer science students to understand. Different teaching approaches can be effective in helping the students understand abstract principles. In this paper, we present our approach to Cryptography education that is based on the idea that the stages of growth of the individual might recapitulate the stages of growth of the science. The Cryptography is apprehended as pilot model for further proposal of Computer Science education. Key-Words: History, ...
Proceedings of the International MultiConference of Engineers and Computer Scientists, 2012
Abstract—Trust is an integral part of grid computing systems. Traditional grid environment uses v... more Abstract—Trust is an integral part of grid computing systems. Traditional grid environment uses various, mostly centrally oriented methods for trust establishment, eg certification authorities, VO management servers or credentials pools. On the other side, ad hoc grids demand minimal administrative requirements; especially an absence of a central trust authority, where collaborating entities must establish and maintain a trust relationship among themselves. The paper presents a design of a supported authorization mechanism ...
Proceedings of the 14th WSEAS International Conference on Computers: Latest Trends on Computers, Jul 23, 2010
Abstract: The global warming has an effect on changes of a snow cover over wintertime. This effec... more Abstract: The global warming has an effect on changes of a snow cover over wintertime. This effect is observed in Slovak ski resorts, too. A prediction of these trends is important to build new and keep the existing ski resorts. We are able to analyze the snow cover depth in detail. This analysis is based on many continuous observations and measurements at the specific climatologic stations of Slovak Hydrometeorogical Institute. However, these climatologic stations do not render accurately all ski places, which could be examined. The aim of this ...
WSEAS Transactions on Information Science and Applications, Oct 1, 2010
Abstract: The aim of this work is the depth of the snow cover computing in the desired point base... more Abstract: The aim of this work is the depth of the snow cover computing in the desired point based on the geographical characteristics of a specific geographical point in a modeled area. The measured data are known on few places. These places are coincident with raingauge stations. These data have been collected by many continuous observations and measurements at the specific climatologic raingauging stations of Slovak Hydrometeorogical Institute. An interpolation method is necessary to obtain a representation of real situation ...
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