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INDONESIA
Indonesian Journal of Electrical Engineering and Computer Science
Published by Institute of Advanced Engineering and Science
ISSN : 25024752     EISSN : 25024760     DOI : -
Core Subject :
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Articles 101 Documents
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Search results for , issue "Vol 12, No 6: June 2014" : 101 Documents clear
Research on End-to-End Delay Performance Based on GPS Scheduling System Wang Yang; Zhou Jin-he; Ye Keng
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper summarizes some results of network calculus. It derives the bounds on end-to-end delay and effective bandwidth by network based on leaky bucket regulators. The simulation results show that the network calculus is a good fit for calculating end-to-end delay. And it provides effective control, scheduling and management in the integration network conditions in the following step. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5474
A New Method of Color Tongue Image Segmentation Based on Random Walk Mingfeng Zhu; Jianqiang Du
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i6.pp4512-4520

Abstract

This paper introduced a kind of new method for color tongue image segmentation by improving random walk algorithm. Firstly, we introduced an improved toboggan algorithm which adopted new classification rules to classify a image into initial regions. Secondly, we built a weighted-graph according to initial regions in which only those adjacent regions were connected. Thirdly, we adopted random walk algorithm to segment images by newly designed weight function. Fourthly, we used mathematical morphology operations to remove small holes on the target region of the segment result of the third step. In the experiment, we compared our method with traditional random walk algorithm. And as the experiment results show, our method achieves basically ideal effects, which are much better than those of traditional random walk image segmentation algorithm. DOI: http://dx.doi.org/10.11591/telkomnika.v12i6.5390
An Efficient System for Information Recommendation Zhenhua Huang; Qiang Fang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

A recommendation system is the one of the most effective tools for tackling with the problem of information overload. However, as the maturity of Web 2.0 and the emergence of massive information, the existing information recommendation systems have the serious drawbacks in the aspects of real-timing, robustness and self-adaptability. Motivated by the above facts, in this paper, we design SIRSCA, which is an efficient semantic-driven information recommendation system under the cloud architecture. Specially, the SIRSCA system mainly include four modules: semantics representation of foundation data and user preference informations; indexing mechanism of massive semantic informations under cloud architecture; recommendation approaches based on semantic computation theory; and technologies of dynamic migration under cloud architecture. We present the extensive experiments that demonstrate our improved system is both efficient and effective. DOI:  http://dx.doi.org/10.11591/telkomnika.v12i6.5445 
Instrument and System for Evaluating Thermal Regulation Properties of Textiles Bao-guo Yao; Jian-chao Wang; Shui-yuan Hong; Li-xia Yan
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

A test instrument was developed and the testing method was proposed to characterize the thermal regulation properties of textiles based on the mechanical device, microelectronics, sensors and control system. A series of indices were defined based on the typical heat flow-time curve and the raw data to characterize the thermal regulation performance of textiles. The measurement principle, the mechanical device and the evaluation method for the thermal regulation properties of textiles were introduced. Twelve types of fabrics made from different textile materials were tested. The one-way ANOVA analysis was conducted to identify the significance of the differences of the indices among the fabrics. The results show that each index is significantly different (P<0.05) among the different sample fabrics. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5497
Oscillation Criteria for Even-Order Half-Linear Functional Differential Equations with Damping Shouhua Liu; Quanxin Zhang; Li Gao
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i6.pp4882-4892

Abstract

In this paper, a class of even-order half-linear functional differential equations with damping is studied. By using the generalized Riccati transformation and the integral averaging technique, six new oscillation criterias are obtained for all solutions of the equations. The results obtained generalize and improve some known results.
Design and Simulation of Multiple Coil Model for Wireless Power Transmission System Duan Zhao; Enjied Ding; Yanjun Hu; Zhifeng Sun
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

In Wireless Power Transfer (WPT) systems the proportion of energy received by the load is critical and the efficiency is the more significant parameter. WPT systems use resonant inductive coupling, where it is the near field wireless transmission of electrical energy between two coils that are highly resonant at the same frequency. This paper aims to propose a design of an optimal two dimensional (2D) structure of transmitter and receiver. Multiple overlapping coils structures in the transmitter side are proposed, in order to achieve higher efficiency than the typical single coil transmitter. Simulation results showed that the axial component of magnetic induction resulted from the overlapping coils structure has preferable homogeneous distribution. The proposed system achieved an efficiency value of 90 % for a receiver placed 20 cm away from a 4 coils transmitter comparing to an efficiency value of 75% for the same distance using a single coil transmitter. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5119
Research of Background Segmentation Method in Sports Video Shen Li; Hou Lihong
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Human motion image segmentation is the first step in the process of human motion analysis; it is low-level processing part of the visual analysis of human movement. The processing results of the stage of quality directly affects the progress of the follow-up work, the segmentation result has enormous influence on the final results human of movement analysis. Human motion image segmentation research is an important goal similar to the visual perception of the human, which make the computer feel the movement of human body, and make computers easier to understand the feelings of sports behavior. Deviation information based on Gaussian mixture model to join the chroma and brightness of background segmentation method is not only suitable for ordinary static scene, but also it is suitable for the special environment such as reflective of ice, fuzzy shadow, moving object reflection. According to experiments results, it is shown that the proposed algorithm has strong robustness. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5120
Load Balancing Algorithm of GPU Based on Genetic Algorithm Zhang Xiang Yang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

As the development of GPU/CPU parallel computing in recent years, load balance of GPU server has been more and more important, so we promote a genetic algorithm-based load balancing algorithm for GPU RTM. The algorithm takes the server status and job assignment into account, and design a coding mechanism and genetic manipulation, as well as fitness function. The experiments show that,the algorithm can reach a better effect of efficiency and load-balancing. It can hidden data transmission in the parallel computing, and during server downtime, it can prevent the idle of other computing resources. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.4531
A Dual-Microphone Speech Enhancement Algorithm for Close-Talk System Yi Jiang; Zhenming Feng; Yuanyuan Zu; Xi Lu
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i6.pp4475-4484

Abstract

While human listening is robust in complex auditory scenes, current speech enhancement algorithms do not perform well in noisy environments, even close-talk system is used. This paper addresses the robustness in dual microphone embedded close talk system by employing a computational auditory scene analysis (CASA) framework. The energy difference between the two microphones is used as the primary separation cue to estimate the ideal binary mask (IBM). We also use voice activity detection to find the noise periods, and update the separation critical value. Generalization interference locations and reverberant conditions are used to examine performance of the proposed system. Evaluation and comparison show that the proposed system outperforms other two systems on the test conditions. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5485
A Novel Control Architecture for Mission Re-Planning of AUV Rubo Zhang; Haibo Tong; Changting Shi
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

A hierarchical control architecture for mission re-planning of autonomous underwater vehicle (AUV) navigating in uncertain ocean environment is presented in this paper. The proposed component-oriented control architecture structured is made of three parts: situation reasoning, re-planning trigger and hierarchical re-planning layer. Situation reasoning using the unstructured real-word information obtained by sorts of sensor detectes and recognizes uncertain event.The re-planning trigger decides the re-planning level by the event types and influence degree. Hierarchical re-planning layer contains mission re-planning, task re-planning and behavior re-planning. Different re-planning level depends on the result of re-planning trigger. Preliminary versions of the architecture have been integrated and tested in a simulation environment. Experiment indicates that the novel control architecture can implement mission re-planning steady and safty. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5442

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