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SaaS (Software as a Service), the new software application pattern has got wide attraction in both industry and academia. Multi-tenancy supporting is a big advantage of SaaS. However, current SaaS models and design/execution approaches cannot efficiently support simultaneous invocation by large amount of users of different tenants. To solve the problem, this paper proposes a new SaaS service execution...
Monte Carlo Method has been proven very successful for non-linear and non-Gaussian estimation problems. However, a Monte Carlo filter usually has a lot of samples, which increase the computational load greatly. This paper presents threshold constraint into Monte Carlo. The target model is defined by the color information of the tracked object. Use the Bhattacharyya coefficient to get the similarity...
Recent development in Graphics Processing Units (GPUs) has enabled inexpensive high performance computing for general-purpose applications. Due to GPU's tremendous computing capability, it has emerged as the co-processor of the CPU to achieve a high overall throughput. CUDA programming model provides the programmers adequate C language like APIs to better exploit the parallel power of the GPU. K-nearest...
Directed Information (DI) is used to quantify the causal and dynamic relations between two signals. The main advantage of using DI compared to other measures of causality is that it does not assume an underlying signal model and thus can capture both linear and nonlinear interactions between signals. However, one major problem in computing the DI from data is the high computational cost and the unreliability...
The verification of service replaceability is an important issue for service composition in a seamless way. In this paper, it proposes the definition of service behavior impaction to judge the service replaceability. It defines the service behavior model based on the colored Petri Net, put forward service behavior impaction and service replaceability. The application of the method in the scenarios...
In distributed small satellites, the existence of the baseline error will affect the realization of the three functions: synthetic aperture radar imaging, ground moving target indication and altitude measure. A new 3-D baseline error estimation method for distributed small satellites is proposed in this paper. This method separates the along-track baseline and the cross-track baselines through image...
The study and practice of teaching reform approach for electrical machinery is introduced in this paper. It involves the reforming of the knowledge hierarchy, teaching method and teaching practice segments. The practice in teaching process has shown that these methods has enhanced the activeness and initiative of students and inspired their creative thoughts. This new attempt has achieved effective...
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