Journal of Intelligent & Fuzzy Systems - Volume 34, issue 2

Authors: Yu, Jingjie | Hu, Min | Wang, Peng

Article Type: Research Article

Abstract: Evaluation of the security risks of the Internet had a very important significance to enhance the security level of the Internet and take security measures to eliminate security incidents, and to reduce security risks. After constructing the index system of network security risk assessment, the Dempster synthesis rule was optimized, and the weights of each index system were determined based on D-S evidence theory. In order to verify the reliability of this method, the reliability distribution values of each index layer were synthesized by the optimized Dempster synthesis rule. We can see from the calculation results and Matlab simulation results …that the reliability of the network risk level was significantly improved with the combination rule. Furthermore, the sensitivity analysis was carried out by perturbation method and individual risk factors were adjusted for comparative analysis in two different situations A, B. We can see from the results of comparative analysis that the single factor risk factor had little influence on the whole network risk level, which showed that the stability was better. Show more

Keywords: Network security, D-S evidence theory, risk assessment, reliability

DOI: 10.3233/JIFS-169379

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 861-869, 2018

Authors: Ding, Bi-Rong | Qu, Xin-Huai | Chen, Yuan-Long

Article Type: Research Article

Abstract: Genetic algorithm is a kind of algorithm which applies the theory of natural evolution to search. In the process of mechanical design, genetic algorithm or improved genetic algorithm has become a hot research topic. In this paper, with the advantages of nonlinear genetic algorithm, the kinematic performance of planar five bar linkage was optimized. The objective function was defined as the Jacobi number of the parallel mechanism, which solved the optimization problem of the rod length. According to the optimized length of the five bar mechanism, kinematics simulation was carried out in MATLAB, and the trajectory of the third joints …of the five-bar mechanism was optimized. According to the calculation results, the Jacobi condition number of five bar mechanism was compared. The results show that the proposed algorithm can effectively improve the performance of five bar mechanism, so the effect of genetic algorithm on mechanical optimal design is proved. Show more

Keywords: Linkage mechanism, trajectory optimization, genetic algorithm, Jacobian condition number, kinematics simulation

DOI: 10.3233/JIFS-169380

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 871-878, 2018

Authors: Liu, Jianpo | Yuan, Xiaobing | Qian, Hanwang | Cheng, Yongbo | Liu, Falin

Article Type: Research Article

Abstract: To enhance the computational efficiency of mobile devices is helpful to realize the application of Ad Hoc network routing technology for video transmission. However, there are still many problems in the application of video transmission based on Ad Hoc network technology, such as the problem of random packet loss caused by node and channel failure. The routing technology which can meet the requirements of QoS technology can be realized in the process of multimedia video transmission. However, because of the deviation in the process of network information transmission and the role of network dynamic topology, QoS routing in Ad Hoc …is provided in the complex process of video transmission. Application of multipath routing protocol based on Ad Hoc can improve the throughput of the network information data and enhance the stability of data transmission. Aiming at the problem of choosing the interference path with different height, a multi-path routing protocol based on Ad Hoc network routing technology was proposed in this paper. Show more

Keywords: Video transmission, Ad Hoc network, routing, performance evaluation

DOI: 10.3233/JIFS-169381

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 879-886, 2018

Authors: Sun, Zhifeng | Wu, Xingxu | Qu, Honglue

Article Type: Research Article

Abstract: Long-span underground cavern excavation has been receiving wide application. This paper aims to give a theoretical study on the long-span underground cavern excavation as well as the damage zone of rocks subjected to various modes of blasting. Analysis is performed based on cylindrical wave theory with a start from blasting vibration and rock damage study, and then an optimized excavation method is proposed. Moreover, ultrasonic tests demonstrate validation of damage zone. It shows the proposed excavation approach is applicable.

Keywords: Long-span underground cavern, blasting vibration, rock damage zone, excavation method, ultrasonic test

DOI: 10.3233/JIFS-169382

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 887-892, 2018

Authors: Da-Wei, Cao | Chao, Liu | Shun, Wang | Xun-Ling, Wang | Wen-fang, Wu

Article Type: Research Article

Abstract: With the continuous popularization and application of computer network technology in many fields, it is imperative for the teaching reform of physical education with the main features of the multimedia digital platform. In view of the development of modern social network and the rich network resources, the digital teaching platform was taken. Platform construction was divided into several steps, including analysis, design, development, implementation and evaluation. Students watch sports video, sports teaching animation and so on through the platform, so that they could understand and learn the sports knowledge better. Using literature, experiment and other research methods, the teaching effects …of the multimedia digital platform teaching method and the traditional teaching method were analyzed. The results show that the digital sports teaching platform can fully mobilize students’ initiative. Using the flexibility and the popularity of networks, it makes more students be exposed to sports and enable them to acquire more sports skills, which is an effective way to fully mobilize students’ subjective initiative and improve the teaching effect. Multimedia digital platform provides a new direction for the development of physical education in colleges and universities. It also promotes the development of physical education and the spread of sports skills. Show more

Keywords: Multimedia digital platform, physical education curriculum teaching, teaching design

DOI: 10.3233/JIFS-169383

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 893-901, 2018

Authors: Li, Yang

Article Type: Research Article

Abstract: Hazardous chemicals need to strengthen the monitoring and management of storage because of its particularity to prevent the dangerous chemical accidents caused by improper management and avoid the loss of people’s lives and property. Due to the influence of environment, traditional positioning technology and may cause poor positioning accuracy. And it was difficult to realize real-time and accurate monitoring of hazardous chemicals warehouse. The improved TDOA algorithm based on wavelet transform was very important to ensure the storage management of hazardous chemicals. Error elimination algorithm based on Wavelet Transform can be used to obtain better positioning accuracy in the case …of zero mean Gauss random variables under a small error. In order to verify the effect of wavelet based TDOA positioning error elimination algorithm, T1P1 channel model was used for simulation analysis. The comparative analysis was carried out through the simulation results of Chan algorithm, LS algorithm and the improved wavelet location error elimination algorithm. It can be seen by comparison that the improved algorithm was more effective than other two kinds of algorithms in different radius range, measurement error and channel environment, which can improve the positioning accuracy effectively. Show more

Keywords: TDOA positioning, error elimination, chemicals, storage

DOI: 10.3233/JIFS-169384

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 903-911, 2018

Authors: Chen, Yushu | Wu, Zhihui

Article Type: Research Article

Abstract: The study on structure optimization design of modified wood furniture tenon structure based on the finite element analysis of ANSYS has a very important significance. On the one hand, it can enhance the functionality of the furniture. On the other hand, it can effectively reduce the destruction of natural resources. Chinese traditional furniture tenon connection technology with widely application and mature process is one of the commonly used connection technologies in China’s construction and furniture manufacturing. After a certain modification of processing, wood used in the production of furniture can meet the demand of density and bearing, which is conducive …to the modernization design of modern furniture. For optimization design of furniture tenon structure through the finite element analysis software NASYS, parametric modeling was firstly made by using a T-shaped tenon structure of modified poplar as the research object, and setting the size of tenon structure. On this basis, the optimization design was carried out step by step, and finally the results of the feasibility design sequence were obtained. From the optimization results, it can be seen that in the final feasible design sequence, the optimal tenon length ratio and tenon thickness ratio were 74.0% and 61.6%. In order to verify the performance of the optimized design results, five groups of tenon structure were processing product and made with the load test. Through the experiment, we can see that the rigidity index of tenon structure showed a decreasing trend and the maximum loading capacity was increased, which indicates that the effect of optimum design is to meet the initial purpose of optimization design. Show more

Keywords: Finite element analysis, ANSYS, modified wood, tenon structure, optimization design

DOI: 10.3233/JIFS-169385

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 913-922, 2018

Authors: Ji, Zhe | Huang, Wei-Hsin | Zhang, Xincheng

Article Type: Research Article

Abstract: Based on the survey result that the interaction experience about the game interface on smartphones is always reluctant for users, this study focus on how to provide better experience for users and make up for the rapid prototype method in designing user interface to provide some references for smartphone-game interface designers. By analyzing the development process and the main features of smartphone-games, the current status of smartphone-games design are presented, and three kinds of prototype methods are used to combine the interactive design process and the management process which are devoted to improve the interface design. Finally, based on a …case analysis, the user interface design is demonstrated to be a user-centered iterative design process where the in-depth user research should be carried out in the early phase, and the repetitious user tests should be implemented in the last phase. This study can provide technical support for the analysis of smartphone-game interface design. Show more

Keywords: Smartphone-games, interface design, prototype method

DOI: 10.3233/JIFS-169386

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 923-931, 2018

Authors: Yi, Liu | Tian, Song | Le-Jian, Liao

Article Type: Research Article

Abstract: With the continuous development of modern network, because of the increasing prominent and correlation of the huge network system, the original source independent network system has been difficult to meet the needs of the development of modern network. Therefore, we need to add the correlation between each ON/OFF source in the classical ON/OFF model based on the time series. On the basis of theoretical analysis and simulation experiment, the new C-ON/OFF model was formed after the improvement of ON/OFF model. Through quantitative analysis, the two parameters of and with the physical meaning in the model were discussed, and the relationship …between the normalized self-covariance of the generated traffic. In order to verify the validity and practicability of the proposed model, the experiments of different parameters of the two groups were comparatively analyzed. The experimental results show that the model has good advantages in the physical meaning and complexity under longer correlation, and the C-ON/OFF network traffic model can be applied to the design of the network traffic monitoring system. Show more

Keywords: Time series, C-ON/OFF model, construction, convergence

DOI: 10.3233/JIFS-169387

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 933-943, 2018

Authors: Yu, Wei | Xu, Yong

Article Type: Research Article

Abstract: In the large-scale application of mobile Internet today, in order to meet the requirements of cross-platform application, its development is growing louder and louder. Therefore, the application of the latest Internet technology standard HTML5 in the development of mobile Internet was put forward in this paper. The technical characteristics of HTML5 and its applications in mobile Internet were described in detail. Then MVC model was regarded as the guiding ideology, and through the HTML5 technical standards, the framework of mobile application for the development of mobile applications was designed. The framework of the core library pine was designed, and the …framework was realized. The framework was tested on different hardware and operating systems, and the results showed that the framework could be used in various operating platforms and operating systems. Show more

Keywords: Mobile internet, HTML5, mobile application framework

DOI: 10.3233/JIFS-169388

Citation: Journal of Intelligent & Fuzzy Systems, vol. 34, no. 2, pp. 945-954, 2018