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Study on the Method of the Self-adapting Image Threshold Divided in the Surface Image of the Tubular Cartridge Case
Wu Qizhou;
Jin Yong;
Wang Liming
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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The technology of detecting the internal and external diameter of the tubular cartridge case that using scanistor to obtain the image of the tubular cartridge case surface, aiming at the difference in the image of the surface between the degree of color gray. This article proposed the self-adapting image threshold divided method that base on mean and standard difference of the image of the surface using to definition threshold, solved the key question of the surface image manipulation, make the detecting result reaching the upper precision. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3581
QuickTime Virtual Reality Technology Applies to Practical Teaching Recording System
Yongyong Zhu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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The realization of virtual reality technology is useful in distributed practical teaching because its advantages such as illustrated, no limit by space and time, high intelligence, good ability of interactivity and etc. The practical teaching virtual reality technology is based on static images and IP network of computers. Recording the course of video, frequency, operation process of practical teaching, the contents of computer screen and etc simultaneously in real time, it broadcasts on internet, or save them on server in digital media format as internet teaching resources. It is the application of virtual reality technology to proceed with seamless data integration of various teaching platform, to form unified utilization and integration of resources, to improve the students’ study interest, to promote the spreading and applying of virtual reality technology. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.2876
A Novel Algorithm of Network Trade Customer Classification Based on Fourier Basis Functions
Li Xinwu;
Guan Pengcheng
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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Learning algorithm of neural network is always an important research contents in neural network theory research and application field, learning algorithm about the feed-forward neural network has no satisfactory solution in particular for its defects in calculation speed. The paper presents a new Fourier basis functions neural network algorithm and applied it to classify network trade customer. First, 21 customer classification indicators are designed, based on characteristics and behaviors analysis of network trade customer, including customer characteristics type variables and customer behaviors type variables,; Second, Fourier basis functions is used to improve the calculation flow and algorithm structure of original BP neural network algorithm to speed up its convergence and then a new Fourier basis neural network model is constructed. Finally the experimental results show that the problem of convergence speed can been solved, and the accuracy of the customer classification are ensured when the new algorithm is used in network trade customer classification practically. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.2978
Software Aging Prediction Based on Extreme Learning Machine
Xiaozhi Du;
Huimin Lu;
Gang Liu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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In the research on software aging and rejuvenation, one of the most important questions is when to trigger the rejuvenation action. And it is useful to predict the system resource utilization state efficiently for determining the rejuvenation time. In this paper, we propose software aging prediction model based on extreme learning machine (ELM) for a real VOD system. First, the data on the parameters of system resources and application server are collected. Then, the data is preprocessed by normalization and principal component analysis (PCA). Then, ELMs are constructed to model the extracted data series of systematic parameters. Finally, we get the predicted data of system resource by computing the sum of the outputs of these ELMs. Experiments show that the proposed software aging prediction method based on wavelet transform and ELM is superior to the artificial neural network (ANN) and support vector machine (SVM) in the aspects of prediction precision and efficiency. Based on the models employed here, software rejuvenation policies can be triggered by actual measurements. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3495
Research and Simulation of Task Scheduling Algorithm in Cloud Computing
Hong Sun;
Shi-ping Chen;
Chen Jin;
Kai Guo
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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This paper focuses on the task scheduling algorithms based on comprehensive QoS and constraint of expectation. Under the environment of dynamic cloud computing, efficiency improving of task scheduling and load balancing are eternal problems. For users, however, it's more important to meet their requirements of QoS. This paper relates to a benefit-fairness algorithm based on new Berger's model under the environment of dynamic cloud computing. According to the different type of task scheduling, we describe the priority of fairness, efficiency and the Balance between benefit and fairness respectively. We recompile the CloudSim and simulate the three task scheduling algorithms above on the basis of extended CloudSim respectively. The experimental results indicate that this algorithm dose not only meet the principle of giving priority to benefit with due to consideration to fairness, but also meet users' needs of synthesized QoS. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3513
Scaling Behavior and Phase Change in Complex Network
Wei Cheng;
Tanzhen Hua;
Guiran Chang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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Scaling behavior is a extremely typical phenomenon in complex system research, as well as it can act that many Macro indicators in system or distribution function of some variables meet exactly power-law behavior, which possesses different kinds of Exponents. In this article, according to Phase Change concept in Physics, it is researched that the nature in critical state of complex network with Seepage model, and it is totally stated that the basic reason of Self-similar behavior, Fractal behavior, and so on, and also Phase Change in complex network in critical state of complex network in accord with power-law distribution. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3529
Research on the Optimal Layout Problem for NC Machining Based on Improved Genetic Algorithm
Wang Shuqing;
Lei Lei;
Wang Bing
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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In the process of NC machining, the optimization processing of graphic layout is a well-studied problem which has practical application value for improving the utilization rate of raw materials and saving the cost of production. In this paper, a new design of genetic algorithm (GA) is proposed for solving this problem. This improved genetic algorithm combines GA with the improved crossover operator and mutation operator. Moreover, the best individual preservation method is integrated into the algorithm. The improved genetic algorithm expands the search space and enhances the GA’s search capabilities. Furthermore, the maximum matching algorithm is proposed based on the lowest horizontal line algorithm, which effectively avoids blind elevating horizontal lines and improves the utilization rate of the lowest horizontal line. It is integrated with the improved genetic algorithm to solve the two-dimensional rectangular parts optimal layout problem which combines the advantages of two kinds of algorithms. The experimental results show that the algorithm can get a good optimization result. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3554
A Novel Self-adaptive Discrete Wavelet Transform Digital Watermarking Algorithm
Ma Chi;
Zhu Yongyong
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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On the basis of the research of wavelet transform and digital watermarking technology,this paper proposed a self-adaptive discrete wavelet transform(DWT) digital watermarking algorithm, which can achieve the purpose of embedding hidden watermarks by decompose three-level wavelet of image and decompose bit-plane of watermarking gray scale image by Arnold scrambling transformation. Layer adaptive threshold and quantizer were referenced in this algorithm, and which adaptive selected coefficient of detail subbands of embedded watermarking to improve the robustness of the watermarking. In testing of semi-blind watermarking, renewing of watermarking based on the embedding sequence of point locations and the quantizer sequence without participation of the original image. Experimental results show that the algorithm is effective to improve the robustness of the cut, adding noise, filtering, and compression image attack treatment.DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.2761
The Small and Medium-sized Enterprises Performance Evaluation Model Based on DEA and AHP Method
Qiong Sun;
Zhengran Gao
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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In this paper, DEA model and AHP model combined with a new method to evaluate the performance of the small and medium enterprises. In this paper, mainly introduced the analytic hierarchy process(AHP)and data envelopment analysis ( DEA ), based on the existing on the small and medium-sized enterprise performance evaluation methods are analyzed, finally, through empirical analysis that the method of DEA based on AHP and has good applicability and feasibility. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3470
Automatic Detection and Processing of Attributes Inconsistency for Fuzzy Ontologies Merging
Yonghong Luo;
Zhou Yu;
Yanhao Zhuang;
Zhaopeng Zheng
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science
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Semantic fusion of multiple data sources and semantic interoperability between heterogeneous systems in distributed environment can be implemented through integrating multiple fuzzy local ontologies. However, ontology merging is one of the valid ways for ontology integration. In order to solve the problem of attributes inconsistency for concept mapping in fuzzy ontology merging system, we present an automatic detection algorithm of inconsistency for the range, number and membership grade of attributes between mapping concepts, and adopt corresponding processing strategy during the fuzzy ontologies merging according to the different types of attributes inconsistency. Experiment results show that with regard to merging accuracy, the fuzzy ontology merging system in which the automatic detection algorithm and processing strategy of attributes inconsistency is embedded is better than those traditional ontology merging systems like GLUE, PROMPT and Chimaera. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3490