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Collaborative Filtering (CF) has become one of the most successful approaches for providing personalized product recommendations to users. Neighborhood-based CF is one of the main forms among all CFs, which is widely used in commercial domain. However, neighborhood-based CF suffers from new user cold-start problem in sparse rating data. In this paper, we propose an improved neighborhood-based CF recommendation...
With the rapid increase of the network bandwidth, to process high throughput regular expressions with hardware has become inevitable. This paper presents a novel NFA-based algorithm. In this paper, two theorems were proved and were used to prove the correctness of the algorithm. Our approach was based on three basic modules to construct NFA that can be easily reused in a FPGA or ASIC. The quantitative...
In modern industry, data has become an indispensible resource for the whole process of production and business. For the optimization of the control performance, the data-driven-based PID controller is introduced in this paper. Based on the data-driven control law, the parameters of the PID controller will be renewed automatically by using the real and historical input/output data of the plant. And...
In modern industry, data has become an indispensible resource for the whole process of production and business. For the optimization of the control performance, the data-driven PID controller is introduced in this paper. Based on the data-driven control law, the parameters of the PID controller will be renewed automatically by using the real and historical input/output data of the plant. And then,...
With the rapid increase of the network bandwidth, implementing regular expression with hardware has become inevitable. This paper presents a FPGA-based NFA algorithm to achieve a regular expression, which separates the regular expression into wildcard strings and fixed strings, and implement both types pattern matching with a similar structure. It reduces the complexity of programming and takes full...
For researching an effective method in groundwater vulnerability assessment, based on the Projection Pursuit technique and Shuffled Frog Leaping Algorithm, a new groundwater ulnerability evaluation model was built. Shuffled Frog Leaping Algorithm was proposed and applied to the model optimization, which could deal with golbal optimization problem with various restrictions effectively. The case study...
The data about measles cases in our district from the year 2001 to 2009 was collected and analyzed to illuminate the characters of measles in season distribution, and the methods of concentration degree and circular distribution were used in this study. The results shows that measles are more likely to happen in spring, from March to June (M=0.727, r= 0.7168, P<0.05). 83.28 percent of cases were...
Today, with the increasing popularity of chip multiprocessors (CMPs), the memory wall problem becomes more serious. So, making better use of the shared cache on chip is more necessary on CMP than other multiple processors architecture. In this paper, we analyze the performance of traditional special decomposed parallel implementation of red-black algorithm, and find that this parallel model does not...
Poyang Lake is China's largest freshwater lake. It has good regulation role to Yangtze River. After the running of Three Georges Project, it influences the water level of Poyang Lake a lot. This paper predicts Poyang Lake's water level, it is the basic of influence research. Once there were many predicting methods, such as ANN, etc. But these methods are not very precisely. This paper uses wavelet...
Poyang Lake is China's largest freshwater lake. It has good regulation role to Yangtze River. After the running of Three Georges Project, it influences the water level of Poyang Lake a lot. This paper predicts Poyang Lakepsilas water level, it is the basic of influence research. Once there were many predicting methods, such as ANN, etc. But these methods are not very precisely. This paper uses wavelet...
Three Gorges Project is the world's largest hydropower station, and it is also China's largest hydraulic project. It has the very important role of flood control, generation and shipping. Poyang Lake is the largest freshwater lake of China. It has the natural role of regulating Yangtze River's water. It also provides a very good natural condition for the development of regional economic. This paper...
Wavelet analysis has good time-frequency analysis ability. Artificial neural network has powerful nonlinear approximation ability. This paper combines their abilities, and establishes WANN model. It uses this model to forecast monthly runoff, the result shows that this model can get a good result in simulating and predicting monthly runoff.
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