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Most existing evolutionary algorithms are only effective for optimization problems with no more than one hundred decision variables. However, many optimization problems involve more than several hundreds decision variables, even one thousand. To deal with these problems, a fast cooperative coevolutionary particle swarm optimizer (FCPSO) is proposed, which is constructed based on cooperative coevolutionary...
This paper introduces an intelligent pre-control model of urban arterial which is the key problem of the urban traffic, especially in China. This study investigates the effects of speed control on traffic flow processes and develops a pre-control strategy to maximize the efficiency of urban arterial system, especially under the congestion conditions. Moreover, the traffic congestion forecast method...
To meet the requirements in developing distributed simulation technology, a grid-based distributed simulation platform (GDSP), which was based on latest grid technology and high level architecture (HLA), was proposed. GDSP is the base infrastructure of service-oriented simulation support environment. And it can run simulations on wide area network efficiently, realize share and reuse of simulation...
It is not convenient to use separate or multi-separate operations of sticker DNA model directly in Adleman-Lipton model. In order to make experiments conveniently in Adleman-Lipton model, the Extended Separate technology was proposed originally; and the biochemical implementing method was given, too. Both a sticker DNA algorithm of linear full permutation problem (LIFPP) and a sticker DNA algorithm...
In order to organize and manage 3D GIS spatial data effectively, and represent 3D spatial entity integrally, a hybrid data structure model called BOT model (block octree tetrahedron model) is presented on basis of geological block model, which combines octree and tetrahedral network (TEN) structures. Using BOT generation algorithm, the block model is redivided with octree as general shape description...
Video grid is a leading development direction of multimedia in the future, which integrates varied technologies of multimedia. Video grid simulator is able to detect the deficiencies in the video grid while simulating the process of the real situation of video grid. It can improve the performance of video grid by optimizing the system design of video grid. The paper introduces varied grid simulators...
Software measurement can help software developers analyze reliability, maintainability and complexity of systems. Till now, researchers have proposed lots of metrics for UML class diagrams range from cohesion to couple. However very little work is involved in measuring weights of relationships. This paper describes how to measure weights of relationships objectively and mechanically, in which famous...
The limestone-gypsum flue gas desulfurization at the coal steam-electric plant applied widely, and take the currently widespread adoption of desulfurization, simple and wet method, spray fog dry method, electron beam method... etc., although electron beam method and limestone-gypsum desulfurization has a higher rate, it increase the unit price degree deeply, so the economy be not quite reasonable...
For the optimization of multi-project in condition of limited resources, it is very hard to obtain the satisfying computation result by using traditional methods. However, genetic algorithm is better than the traditional optimization methods for the best solution. Basing on the theorem of genetic algorithm and the characteristic of multi-project resource optimization, a mathematic model to optimize...
The theory of entropy is abundant in content and has be applied to the economy. Usually, we measure the system quantity, that is the measuring of amount and quality of information that people acquire, the concept of entropy is usually changed into the quantitative concept of entropy weight. The entropy value is smaller, and the entropy weight is bigger, that imply the system provided useful information...
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