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Deformable part models (DPM) is a typical machine-learning based detection technique. It can achieve great success in detecting accuracy, but have compute-intensive tasks which severely restricts its utilization in many real world applications. In order to get high frame-rate for practical use, accelerators and grid computing infrastructure are needed. This paper propose a grid scheduling scheme which...
The LOD is an important technology of scene model management. The multi-resolution LOD based on viewpoint is one of the research focuses. In the paper, a progressive mesh algorithm based on edge collapse is improved, in which a distance between the viewpoint and model is regarded as a discriminant condition, and a half-edge collapse is used to simplify the model. The algorithm will realize the multi-resolution...
The complexities of construction project make project planning and control difficult and System Dynamics (SD) methodology brings an effective way to improve scientificity of project planning and effectiveness of project control. The complexities of construction project are analyzed from the view of SD after the connotation of SD is elaborated. The development principles of construction project SD...
Tetrahedron Block (TB) is a commonly used material in river closure and dike protection engineering. A 3D hydrodynamic model, which is based on the commercial Computational Fluid Dynamics (CFD) code Fluent, is developed to predict velocity fields and drags of the single TB in flow with different free stream directions. The realizable k-ε model is adopted for turbulent closure of the Reynolds Averaged...
Based on the requirement analysis of capability modeling and simulation, put forward the concept model of complex communication network capability. And built an effects simulating framework, includes topology, traffic, damage, jamming and environment. In addition, give a verified instance.
Shearer height adjusting is a key technology for coalmine unmanned working face. On the basis of establishing Shearer working face mathematical models, this paper determined related parameters influencing the Shearer height adjusting, then analyzed traditional Shearer memory cutting strategy and pointed out its shortcomings. Aiming at changing technical limitations of Shearer height adjusting currently,...
This paper aims to provide a formal abstraction of Volunteer computing system. At first, we identify three key roles of Volunteer resources. Then, a formal model and method concerning volunteers are introduced. We apply this model to describe Volunteer computing systems. Relationships among elements and relationship changes are also characterized, based on agent and components. All of the results...
For the maximize profits, the decision of how to obtain optimal quantity for the two kinds of perishable high-tech products is discussed, with two-direction substitutable demand and considering the cost of out-of-stock products. By establishing stochastic demand model, the optimal ordering quantity policy is derived, with two-direction substitutable demand. A numerical example is used to demonstrate...
Due to the rapid increasing of system users, it is becoming a tiresome task for the administrator to assign roles and maintain permissions in traditional RBAC model. In order to simplify the administrator's work and standardize security strategy, human's fuzzy decision-making capability is required. In this paper, an optimized RBAC model based on fuzzy theory is proposed. Bitmap matrix is used for...
Nonlinear problems of fourth order appear in medical analysis. Most research focus on the existence of solutions by topological indices and critical point theory. Inspired by the effective randomized searching nature of PSO, this paper presents a new technique of optimizing fourth order nonlinear problems. We also give an example that satisfies the conditions of a previous result of CC Pang. Experiments...
Volunteer Computing is a form of distributed computing in which the general public offers processing power and storage to scientific research projects. A large variety of Volunteer Computing Systems (VCS) have been proposed in the literature which use different architectures from client/server to P2P. This paper aims to provide a formal abstraction of VCS. At first, we identify three key roles played...
Shear probe is a sensor which is used to measure ocean turbulence. Shell and inner structure of shear probe are critical. Shell structure affects liquid field, and inner structure affects sensitivity of shear probe. It is difficult to calculate the interaction between the shell and liquid field. Charge produced by piezoceramics of shear probe is complex to compute. In order to resolve these problems,...
In order to approximate the behavior of hysteresis nonlinearity which often severely limits the performance of system and improve the prediction accuracy of classical Preisach model (CPM), a least squares support vector machine (LS-SVM) based model is presented in this paper. According to the geometric characteristics of multi-loop hysteresis, the input voltage sequences was combined with output stroke...
In the distributing environment, trust is very important for enterprises cooperation. Therefore, in the electronic commerce system, it becomes the key problem to promote enterprise cooperate, which is how to collect necessity of the information for ensuring trust relation, dynamic management, maintenance trust relation, and how to reduce the cooperation risk. This paper advances a trust management...
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