The Experts below are selected from a list of 3696 Experts worldwide ranked by ideXlab platform
Paulo Maciel - One of the best experts on this subject based on the ideXlab platform.
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advanced stochastic petri net modeling with the mercury scripting language
Performance Evaluation Methodolgies and Tools, 2017Co-Authors: Danilo Oliveira, Paulo Maciel, Rubens Matos, Jamilson Dantas, Joao Ferreira, Bruno Silva, Gustavo Callou, Andre BrinkmannAbstract:Formal models are widely used in performance and dependability studies of computational systems. Graphical modeling tools allow users to compose such models with ease, but they complicate the creation of models with a dynamic/complex structure, the hierarchical arrangement of different models, and the automatic execution of models with different parameter configurations. To overcome this problem, we created a scripting language for the Mercury tool that supports the combination of different modeling approaches (e.g., stochastic petri nets and Reliability Block Diagrams) in a single project. In this paper, we focus on the extensions developed to improve the capabilities of Generalized stochastic petri net Modeling: substitution transitions, phase-type delays for timed transitions, support for nets with a variable structure, and event-based programming for simulation.
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SMC - Interval generalized stochastic petri net models in dependability evaluation
2007 IEEE International Conference on Systems Man and Cybernetics, 2007Co-Authors: Sergio Galdino, Paulo Maciel, Nelson S. RosaAbstract:Interval arithmetic has been applied to model uncertainties and variabilities. An interval model is a space, family or class of models in which there are parameters represented by intervals, instead of real numbers. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating dependability measures. IGSPN analysis may be useful as a tool for decisionmaking. A Case study is presented for describing the models as well as for presenting the analysis methods.
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SMC - Interval Generalized stochastic petri net Models in Performance Evaluation
2006 IEEE International Conference on Systems Man and Cybernetics, 2006Co-Authors: Sergio Galdino, Paulo MacielAbstract:Interval arithmetic has been applied to model uncertainties. Generalized stochastic petri net (GSPN) is one of most commonly applied timed petri net models for performance and reliability evaluation. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating performance indices. Three case studies are presented for describing the model as well as for presenting the analysis methods. IGSPN analysis for performance evaluation may be useful for engineers and technicians as a tool for decision-making.
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Interval Generalized stochastic petri net Models in Performance Evaluation
2006 IEEE International Conference on Systems Man and Cybernetics, 2006Co-Authors: Sergio Galdino, Paulo MacielAbstract:Interval arithmetic has been applied to model uncertainties. Generalized stochastic petri net (GSPN) is one of most commonly applied timed petri net models for performance and reliability evaluation. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating performance indices. Three case studies are presented for describing the model as well as for presenting the analysis methods. IGSPN analysis for performance evaluation may be useful for engineers and technicians as a tool for decision-making.
Sergio Galdino - One of the best experts on this subject based on the ideXlab platform.
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SMC - Interval generalized stochastic petri net models in dependability evaluation
2007 IEEE International Conference on Systems Man and Cybernetics, 2007Co-Authors: Sergio Galdino, Paulo Maciel, Nelson S. RosaAbstract:Interval arithmetic has been applied to model uncertainties and variabilities. An interval model is a space, family or class of models in which there are parameters represented by intervals, instead of real numbers. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating dependability measures. IGSPN analysis may be useful as a tool for decisionmaking. A Case study is presented for describing the models as well as for presenting the analysis methods.
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Interval generalized stochastic petri net models in dependability evaluation
2007 IEEE International Conference on Systems Man and Cybernetics, 2007Co-Authors: Sergio Galdino, Paulo R. M. Maciel, Nelson S. RosaAbstract:Interval arithmetic has been applied to model uncertainties and variabilities. An interval model is a space, family or class of models in which there are parameters represented by intervals, instead of real numbers. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating dependability measures. IGSPN analysis may be useful as a tool for decisionmaking. A Case study is presented for describing the models as well as for presenting the analysis methods.
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SMC - Interval Generalized stochastic petri net Models in Performance Evaluation
2006 IEEE International Conference on Systems Man and Cybernetics, 2006Co-Authors: Sergio Galdino, Paulo MacielAbstract:Interval arithmetic has been applied to model uncertainties. Generalized stochastic petri net (GSPN) is one of most commonly applied timed petri net models for performance and reliability evaluation. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating performance indices. Three case studies are presented for describing the model as well as for presenting the analysis methods. IGSPN analysis for performance evaluation may be useful for engineers and technicians as a tool for decision-making.
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Interval Generalized stochastic petri net Models in Performance Evaluation
2006 IEEE International Conference on Systems Man and Cybernetics, 2006Co-Authors: Sergio Galdino, Paulo MacielAbstract:Interval arithmetic has been applied to model uncertainties. Generalized stochastic petri net (GSPN) is one of most commonly applied timed petri net models for performance and reliability evaluation. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating performance indices. Three case studies are presented for describing the model as well as for presenting the analysis methods. IGSPN analysis for performance evaluation may be useful for engineers and technicians as a tool for decision-making.
Wang Peian - One of the best experts on this subject based on the ideXlab platform.
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an approach for workflow performance evaluation based on discrete stochastic petri net
International Conference on e-Business Engineering, 2007Co-Authors: Wang PeianAbstract:The paper proposes a workflow model based on discrete stochastic petri net and a corresponding time performance calculating method. On the basis of workflow nets and the principles of simplifying workflow net based T-component nets which maintains time constraints and probability distribution of tasks in workflow, several basic structures like sequence, parallelism, choice and iteration can be equivalently simplified through equivalent performance parameter calculating method which puts in consider more generally meaningful probability distribution of time delay of workflow activity.
Song-jiang Wang - One of the best experts on this subject based on the ideXlab platform.
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The Decision-Making Model of TOT Concession Period Based on Fuzzy stochastic petri net
2010 International Conference on Management and Service Science, 2010Co-Authors: Junxin Shen, Song-jiang WangAbstract:TOT concession period is the core issue of project financing, but also the focal focus of contract negotiation. This paper builds risk decision-making of TOT concession period based Fuzzy petri net, then use stochastic petri net for solving Markov process, which reflects the impact of Cash Inflow(CI) and Cash Outflow(CO) by project risk factors. It provides a new solution ideas and methods for TOT concession period.
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The Decision-Making Model of TOT Concession Period Based on Fuzzy stochastic petri net
2010 International Conference on Management and Service Science, 2010Co-Authors: Junxin Shen, Song-jiang WangAbstract:TOT (transfer-operate-transfer) concession period is the core issue of project financing, but also the focal focus of contract negotiation. This paper builds risk decision-making of TOT concession period based Fuzzy petri net, then use stochastic petri net for solving Markov process, which reflects the impact of Cash Inflow(CI) and Cash Outflow(CO) by project risk factors. It provides a new solution ideas and methods for TOT concession period.
Nelson S. Rosa - One of the best experts on this subject based on the ideXlab platform.
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SMC - Interval generalized stochastic petri net models in dependability evaluation
2007 IEEE International Conference on Systems Man and Cybernetics, 2007Co-Authors: Sergio Galdino, Paulo Maciel, Nelson S. RosaAbstract:Interval arithmetic has been applied to model uncertainties and variabilities. An interval model is a space, family or class of models in which there are parameters represented by intervals, instead of real numbers. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating dependability measures. IGSPN analysis may be useful as a tool for decisionmaking. A Case study is presented for describing the models as well as for presenting the analysis methods.
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Interval generalized stochastic petri net models in dependability evaluation
2007 IEEE International Conference on Systems Man and Cybernetics, 2007Co-Authors: Sergio Galdino, Paulo R. M. Maciel, Nelson S. RosaAbstract:Interval arithmetic has been applied to model uncertainties and variabilities. An interval model is a space, family or class of models in which there are parameters represented by intervals, instead of real numbers. This paper describes the interval generalized stochastic petri net (IGSPN) as an interval extension to the GSPN model. The IGSPN analysis takes into account the effects of variability on exponential transition rates and weights when calculating dependability measures. IGSPN analysis may be useful as a tool for decisionmaking. A Case study is presented for describing the models as well as for presenting the analysis methods.
