作者：
许进Department of Control Science and Engineering
Huazhong University of Science and Technology Wuhan 430074 China. new recursive vertex-deleting formula for the computation of the chromatic polynomial of a graph is obtained in this paper. This algorithm is not only a good tool for further studying chromatic polynomials but also the fastest among all the algorithms for the computation of chromatic polynomials.
A new recursive vertex-deleting formula for the computation of the chromatic polynomial of a graph is obtained in this paper. This algorithm is not only a good tool for further studying chromatic polynomials but also ...
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A new recursive vertex-deleting formula for the computation of the chromatic polynomial of a graph is obtained in this paper. This algorithm is not only a good tool for further studying chromatic polynomials but also the fastest among all the algorithms for the computation of chromatic polynomials.
Social features and Dynamicity within Collaborative organizations are an important consideration for Participant. It is well known that with the absence of dynamicity, the organization could not adopt themselves with ...
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Social features and Dynamicity within Collaborative organizations are an important consideration for Participant. It is well known that with the absence of dynamicity, the organization could not adopt themselves with market demands. Therefore, the structure of processes must be modified. Furthermore, without explicit definition of social features, especially coordination, conflicts and deadlocks may occur in interoperability execution in organizations. The aim of this research is to provide a technique to improve social feature definition, adaptability and dynamic of a special collaborative organization with the use of petri nets. After that with a powerful tool and Occurrence Graph, it is evaluated. The result shows that with our approach, Organizations respond to the Customer's demand in a shorter time (Dynamicity), and deadlock is avoided with the use of decision policies (Coordination).
With the growing competition in the markets,the business processes of an organization must make necessary adjustments according to the new *** other words,Changes in business processes as a key component of any organi...
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With the growing competition in the markets,the business processes of an organization must make necessary adjustments according to the new *** other words,Changes in business processes as a key component of any organization,along with the success of the organization and aligned with the business environment and customer needs,seems *** is important is the ability to change and verify the accuracy of the process,before it is *** this research,we propose a framework for applying the changes and verify these,based on the business process methodology and the integration between UML2.0 activity diagram as a standard technique for business processes modeling and colored petri net as an executable model.
作者：
常建华张明德孙小菡Department of Electronic Engineering
Southeast University Nanjing 210096 Department of Electronic Engineering
Southeast University Nanjing 210096 novel numerical method for fiber Raman amplifier (FRA) from standard propagation equations is presented and derived based on the one-step method for ordinary differential equation (ODE). The proposed algorithm is effective in solving FRA equations including all the interactions among pumps signals and noises. Applications of the numerical analysis to practical FRA-based systems show a great reduction in computation time in comparison with the average power method and the fourth-order Runge-Kutta (RK) method under the same condition. Also the proposed method can decrease the computing time over three orders of magnitude with excellent accuracy promises in comparison with the direct integration method.
A novel numerical method for fiber Raman amplifier (FRA) from standard propagation equations is presented and derived based on the one-step method for ordinary differential equation (ODE). The proposed algorithm is ef...
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A novel numerical method for fiber Raman amplifier (FRA) from standard propagation equations is presented and derived based on the one-step method for ordinary differential equation (ODE). The proposed algorithm is effective in solving FRA equations including all the interactions among pumps, signals, and noises. Applications of the numerical analysis to practical FRA-based systems show a great reduction in computation time in comparison with the average power method and the fourth-order Runge-Kutta (RK) method, under the same condition. Also the proposed method can decrease the computing time over three orders of magnitude with excellent accuracy promises in comparison with the direct integration method.
This book constitutes the refereed proceedings of the International Conference on the Applications of Evolutionary computation, EvoApplications 2012, held in Málaga, Spain, in April 2012, colocated with the Evo* ...
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ISBN:
(数字)9783642291784
ISBN:
(纸本)9783642291777
This book constitutes the refereed proceedings of the International Conference on the Applications of Evolutionary computation, EvoApplications 2012, held in Málaga, Spain, in April 2012, colocated with the Evo* 2012 events EuroGP, EvoCOP, EvoBIO, and EvoMUSART. The 54 revised full papers presented were carefully reviewed and selected from 90 submissions. EvoApplications 2012 consisted of the following 11 tracks: EvoCOMNET (nature-inspired techniques for telecommunication networks and other parrallel and distributed systems), EvoCOMPLEX (algorithms and complex systems), EvoFIN (evolutionary and natural computation in finance and economics), EvoGAMES (bio-inspired algorithms in games), EvoHOT (bio-inspired heuristics for design automation), EvoIASP (evolutionary computation in image analysis and signal processing), EvoNUM (bio-inspired algorithms for continuous parameter optimization), EvoPAR (parallel implementation of evolutionary algorithms), EvoRISK (computational intelligence for risk management, security and defense applications), EvoSTIM (nature-inspired techniques in scheduling, planning, and timetabling), and EvoSTOC (evolutionary algorithms in stochastic and dynamic environments).
作者：
SCHMITT, DSCHUHMANN, RWEILAND, TTechnische Hochschule Darmstadt
FB 18 Fachgebiet Theorie Elektromagnetischer Felder D-64289 Darmstadt Germany Dietmar Schmitt was born in Erfurt
Germany in 1965. He received the Dipl.-Ing. degree in electrical engineering from the Technische Hochschule Ilmenau in 1990 and the Ph.D. degree from the Technische Hochschule Darmstadt department of ‘Theory of Electromagnnetic Fields’ in 1994. His main research interest is electromagnetic field theory with emphasis on numerical modelling and simlation. Rolf Schuhmann was born in Osterburken
Germany in 1968. He received the Dipl.-Ing. degree in electrical engineering from the Technische Hochschule Darmstadt in 1994. Theomas Weiland
born in 1951 studied electrical engineering and mathematics at the Technische Hochschule armstadt. In 1977 he received his Ph.D. In his thesis he worked out a finite difference method in the frequency domain and applied it to lossfree and lossy waveguide mode computation which resulted in unique solutionsa priorifree of spurious modes. As fellow at the European Institute for Nuclear Research (CERN Switzerland) he continued his work on electromagnetic computing extending yee's algorithm to include fields of moving charges. At the Deutsches Elektronen Synchrotron DESY in Hamburg he founded in 1983 an international collaboration for three-dimensional electromagnetic simulation. The software paaackage
called MAFIA which resulted from this collaboration has been in use since 1984 in 22 countries and was the first widely distributed 3-D code for radiofrequency field simulation. In 1984 he published a basic paper on the matrix formulation of Maxwells' equations and the uniqueness of numeical solutions. For his contributions to the field of scientific computing he received in 1986 the ‘Physics Prize’ of the German Physical Society
and the ‘Prize for Achievements in Accelerator Physics and Technology’ of the US Particle Accelerator School and the ‘Leibniz Prize’ from the German Research Association in 1987. His work on electrom
A typical application of numerical frequency-domain computations is the calculation of electromagnetic fields in cavities. Not only the field vectors of the desired modes, but also parameters such as the resonance fre...
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A typical application of numerical frequency-domain computations is the calculation of electromagnetic fields in cavities. Not only the field vectors of the desired modes, but also parameters such as the resonance frequency and, in the lossy case, the damping coefficient and the quality factor of the cavity can be obtained. This problem leads to an analytical eigenvalue equation, which can be transformed in an algebraic, complex, linear eigenvalue problem by the finite integration method. The consideration of energy losses in materials is straightforward in the analytical theory, using complex material quantities, but it is still a difficult subject area to solve a complex algebraic eigenvalue problem. Generally problems with very large, complex matrices (dimension >100,000) have to be solved, and no commonly applicable algorithm is known so far. This paper deals with a special variant of subspace iteration with polynomial acceleration, and some problems of the application of the complex Chebyshev polynomials are discussed. Two examples with weakly lossy cavities demonstrate the capability of the new algorithm, which is successfully applied to very large problems of up to 490,000 real unknowns.
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