In the era of knowledge economy, the use of bigdata to assist scientific research management and decision-making is a common concern of researchers. The international (regional) Cooperation and Exchange Projects in N...
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In order to test potential problems of agglomeration degree algorithms, EG algorithm is presented to measure the industrial agglomeration for each of 90 industries and their sub-industries based on micro data of firms...
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In order to test potential problems of agglomeration degree algorithms, EG algorithm is presented to measure the industrial agglomeration for each of 90 industries and their sub-industries based on micro data of firms in Shaanxi. Conclusions are drawn that: (1) Modifiable areal unit problem exists because of decreasing agglomeration with smaller geographic areas aggregation; (2) Average agglomeration of sub-industries is mostly higher than their parent industries; (3) HHI has insignificant correlation with industrial agglomeration; (4) Agglomeration measured based on data of manufacturing industries has similar results with data of overall industries.
In reality, when processing data sets for classification, there are often missing data sets, which brings inconvenience to the classification work. To this end, this paper proposes a method to impute incomplete data b...
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In reality, when processing data sets for classification, there are often missing data sets, which brings inconvenience to the classification work. To this end, this paper proposes a method to impute incomplete data based on the interval value of K nearest neighbors. The method uses the Euclidean distance between the incomplete data and the complete data to find the K closest complete data to the incomplete data, so that the nearest neighbor can be constructed according to the corresponding attribute value of the complete data to the missing attribute value of the incomplete data. interval. Next, the dataset is constructed into an interval-valued dataset. Based on the interval-valued distance algorithm, the incomplete data can be classified by the K-nearest neighbor algorithm. The experimental results show that the improved K-nearest neighbor algorithm based on interval value imputation is more efficient than the traditional 0-value imputation, median imputation and mean imputation K-nearest neighbor algorithm under certain circumstances.
Due to the development of biology and medicine, more and more biomedical relationships are collected in the literature. Meanwhile, with the completion of the human genome project, the post-genome era is beginning. Pro...
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Traditional fuel is increasingly exhausted, and environmental problems are becoming more and more serious. Therefore, the development and utilization of low carbon, energy saving and green. Renewable energy is the the...
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Traditional fuel is increasingly exhausted, and environmental problems are becoming more and more serious. Therefore, the development and utilization of low carbon, energy saving and green. Renewable energy is the theme of energy development in today's era. Wave energy has a high energy density and little energy loss during its propagation. In this paper, the force analysis of wave energy devices under different states is carried out, and the mathematical model is established to maximize the energy conversion efficiency of wave energy devices. The model established in this paper accords with the physical law, and the results obtained are in line with the objective reality. The output power of the wave energy device in one cycle is relatively ideal.
With the rapid development of integrated circuits, a complete system of integrated Circuits contains multiple clocks in a chip. Under the control of different clock domains, data can become metastable state between tr...
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With the rapid development of integrated circuits, a complete system of integrated Circuits contains multiple clocks in a chip. Under the control of different clock domains, data can become metastable state between transfers or storage. This paper describes one of the effective methods to solve the problem about the metastable state, the method is asynchronous FIFO. We study Synchronous FIFO and Asynchronous FIFO in this paper. The article analyses the reasons for the emergence of sub-stability metastable state and how to use the Gray Code to solve metastable state problems effectively. We can generate empty/full status bits via Gray Code pointer, it can effectively reduce the probability of metastable state. This paper has the significance of guiding the use of FIFO.
With the development of science and technology in the logistics industry, logistics robots have become the choice of more and more enterprises, which can reduce costs and improve work efficiency. Compared with the app...
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With the development of science and technology in the logistics industry, logistics robots have become the choice of more and more enterprises, which can reduce costs and improve work efficiency. Compared with the application of single AGV (Automated Guided Vehicle) in logistics transportation, the multi-AGVs method is more widely used. The basic A-star algorithm can provide path planning for single AGV in the static road network. Furthermore, HCA (Hierarchical Cooperative A-Star algorithms) introduces time quantity based on A-star to achieve path planning for multiple AGVs. This paper uses HCA algorithm and introduces Manhattan distance into grid map. Then, a multi-AGVs cooperative transportation strategy is proposed. The storage and transportation environment is simulated under the simulation environment of Webots. The multi-AGV cooperative transportation strategy proposed in this paper is verified and analyzed. Simulation results demonstrate the practicability of the navigation algorithm and the feasibility of the strategy.
This paper mainly introduces three important machine learning algorithms: logistic regression, nearest neighbor and Bayes. First of all, the principle of each algorithm is explained, introducing the basic knowledge of...
This paper mainly introduces three important machine learning algorithms: logistic regression, nearest neighbor and Bayes. First of all, the principle of each algorithm is explained, introducing the basic knowledge of each algorithm. Then, the formulas for each algorithm are derived, making the abstract concepts simple and easy to understand. Finally, the practical functions of the three algorithms in different fields are introduced. An example of logistic regression is the calculation of mortality, which is calculated by studying various physical characteristics of the patient. The nearest neighbor algorithm plays a role in predicting customer behavior. By improving the nearest neighbor algorithm, experimenters can classify data sets more easily and make the results of predictive analysis more accurate. Bayes algorithm plays an important role in predicting the type of disease. Researchers can predict the disease more accurately by analyzing and calculating the characteristics of patients. It greatly reduces the probability of misdiagnosis and missed diagnosis, and improves the efficiency of diagnosis.
Image recognition has long been a fundamental research problem in computer vision, where the goal is to predict the class of a given image. Existing researches have focused on the category level while pay no attention...
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Image recognition has long been a fundamental research problem in computer vision, where the goal is to predict the class of a given image. Existing researches have focused on the category level while pay no attention on predicting object fine attribute information of object. To this end, in this paper, in order to investigate the classification effect of convolution neural network on Pokémon image data set, we use convolution neural network to classify the attributes of Pokémon, which can judge the attributes of a certain elf by its image. We used the pictures of the Pokémon in a scorching game "Pokémon " on the market as our data set. Specifically, we first a structure of the convolutional neural network and apply it to the Pokémon image data set, which can realize automatic recognition and attribute classification of elf images. Then the data enhancement method is used to preprocess the image data, which is combined with a convolutional neural network to improve the effect of attribute recognition and classification. Results show the effectiveness of our proposed method.
The proceedings contain 127 papers. The topics discussed include: application of bigdata technology in rail transit vehicle manufacturing;key technologies of system bigdata oriented to intelligent network applicatio...
ISBN:
(纸本)9781665474009
The proceedings contain 127 papers. The topics discussed include: application of bigdata technology in rail transit vehicle manufacturing;key technologies of system bigdata oriented to intelligent network applications;auxiliary technology of firewall based on computer virus detection;comparison of compensation topologies for wireless charging systems in EV applications;intelligent mining method of audit data characteristics under financial shared service mode;grid development stages and saturation load forecasting based on logistic model;a comparison of approximate analytic and neural network solutions for effective mass Schrodinger equation with Yukawa’s potential;selection of energy internet economic value indicators based on interpretative structural modeling;optimal design of green building landscape space environment based on multiple path-finding algorithms;and the influence of computer vision algorithm on brain function network related to Parkinson’s disease.
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