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2016 5th International Conference on Multimedia Computing and Systems (ICMCS)最新文献

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Test case generation for Java Bytecode programs annotated with BML specifications 用BML规范注释的Java字节码程序的测试用例生成
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905597
Safaa Achour, M. Benattou
The work presented in this paper extends an existing constraint model defined to automatically generate test inputs for java Bytecode programs. We propose to consider also BML specifications for generating valid test data. The main objective is to apply constraint based testing on java bytecode program annotated with BML for detecting the valid execution paths, to check the validity of the returned result, to reduce the domain of input data, and to perform coverage of the testing method under test.
本文提出的工作扩展了现有的约束模型,该模型被定义为自动生成java字节码程序的测试输入。我们建议也考虑生成有效测试数据的BML规范。主要目标是在带有BML注释的java字节码程序上应用基于约束的测试,以检测有效的执行路径,检查返回结果的有效性,减少输入数据的域,并对被测测试方法进行覆盖。
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引用次数: 3
Learning Design approaches for designing Learning environments: A comparative study 设计学习环境的学习设计方法:比较研究
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905666
Amal Battou, Omar Baz, D. Mammass
Learning Design approaches have provided new perspectives for the design and the implementation of learning environments. This paper focuses on the presentation and the comparison of the most used Learning Design approaches in the literature. Several Learning Design approaches are presented. This work seeks to make it easier for instructors that want to make the best choice when choosing an approach to design and authoring a learning environment by revealing which approach will meet their needs.
学习设计方法为学习环境的设计和实现提供了新的视角。本文着重于文献中最常用的学习设计方法的介绍和比较。介绍了几种学习设计方法。这项工作旨在通过揭示哪种方法能满足他们的需求,使想要在选择设计和创作学习环境的方法时做出最佳选择的教师更容易。
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引用次数: 6
DC motor position control of a solar tracking system using second order sliding mode 基于二阶滑模的太阳能跟踪系统直流电机位置控制
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905590
K. Boudaraia, H. Mahmoudi, Mohamed Abbou, M. Hilal
This paper deals with the DC motor position control using second order sliding mode technique in aim to position a solar tracker front of the sun throughout the day. A short description of the studied system is introduced and the modeling of the DC motor using electrical and mechanical equations is shown. Thereafter, a comparative study using PI controller and second order sliding mode is presented in order to control the position of the DC motor. Finally, simulation results using Matlab/Simulink is presented to show the performance of the proposed techniques in position control of the DC motor.
本文研究了利用二阶滑模技术控制直流电动机的位置,目的是使太阳能跟踪器全天处于太阳前方。本文对所研究的系统作了简要介绍,并利用电学和力学方程对直流电机进行了建模。在此基础上,对比研究了PI控制器和二阶滑模控制器对直流电动机位置的控制。最后,利用Matlab/Simulink进行了仿真,验证了所提技术在直流电动机位置控制中的性能。
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引用次数: 5
A GPU-based breast cancer detection system using Single Pass Fuzzy C-Means clustering algorithm 基于gpu的单次模糊c均值聚类乳腺癌检测系统
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905595
M. Al-Ayyoub, Shadi Alzu'bi, Y. Jararweh, M. Alsmirat
Breast cancer is the most lethal type of cancer affecting women in the world. To improve the life quality of women, an early detection of this malignancy is always promising because this cancer is one of the cancers that can be managed and treated easily if it is detected earlier. Mammography is the standard screening method to diagnose breast cancer. At these days, there are a lot of researches that have been done to improve this screening method by benefiting from the enormous growth of technology. Graphics Processing Unit (GPU) is a parallel processor that can divide the complex computations tasks into subtasks and run them concurrently. Many medical imaging modalities offloaded their processing to this processor to help in improving the speed of healthcare systems in order to diagnose the illnesses in real time. This research introduces an acceleration method for the segmentation of the mammography images based on the GPU. In order to provide a better detection for the cancerous tumor, we use a modified version of the most common algorithm for image segmentation, which is the Single Pass Fuzzy C-Means (FCM) algorithm. The approach will be applied to a set of mammogram images to distinguish between malignant and benign cases. Additionally, the system is implemented on GPU parallel processor as well as the traditional CPU in order to compare the performance of both implementations. The performance results are compared according to the execution time and the speedup metrics. The proposed implementation on GPU provides a fine speedup compared to its serial implementation on CPU.
乳腺癌是世界上影响女性的最致命的癌症。为了提高妇女的生活质量,早期发现这种恶性肿瘤总是有希望的,因为这种癌症是一种癌症,如果发现得早,就可以很容易地控制和治疗。乳房x光检查是诊断乳腺癌的标准筛查方法。目前,人们已经做了很多研究来改进这种筛选方法,这得益于技术的巨大发展。图形处理器(Graphics Processing Unit, GPU)是一种并行处理器,它可以将复杂的计算任务划分成子任务并发运行。许多医学成像模式将其处理卸载到该处理器,以帮助提高医疗保健系统的速度,以便实时诊断疾病。本文介绍了一种基于GPU的乳腺x线图像加速分割方法。为了更好地检测癌性肿瘤,我们使用了最常用的图像分割算法的改进版本,即单遍模糊c均值(Single Pass Fuzzy C-Means, FCM)算法。该方法将应用于一组乳房x线照片,以区分恶性和良性病例。此外,该系统在GPU并行处理器和传统CPU上实现,以比较两种实现的性能。性能结果根据执行时间和加速指标进行比较。与在CPU上串行实现相比,在GPU上的实现提供了良好的加速。
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引用次数: 18
Kulczynski similarity index for objective evaluation of mesh segmentation algorithms Kulczynski相似度指标用于客观评价网格分割算法
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905611
F. R. Zakani, K. Arhid, Mohcine Bouksim, T. Gadi, M. Aboulfatah
Recently, the 3D mesh segmentation is considered as an important stage in many applications in 3D shape analysis. In fact, extensive research has been performed to offer multiple approaches and algorithms for 3D mesh segmentation. Nevertheless, it is relatively hard to assess which algorithm produces more accurate segmentation quality than the other. Various methods have been proposed to evaluate the quality of segmentation algorithms. However, the evaluation of these qualities is far from being a solved problem, since most of the existing metrics don't take into account the regularity of the meshes and base their comparison on only one ground truth segmentation which presents a serious problematic since almost all the 3D objects have in general multiple reference segmentations. Hence, in this paper, we propose a new objective evaluation measure, based on the Kulczynski similarity index. The proposed method support comparison with multiple ground truth segmentations and takes into account the irregularity of meshes. Several experiments have been produced to show the discriminative power of our proposed measure.
近年来,三维网格分割被认为是三维形状分析中的一个重要步骤。事实上,已经进行了广泛的研究,为3D网格分割提供了多种方法和算法。然而,相对难以评估哪种算法比另一种算法产生更准确的分割质量。人们提出了各种方法来评估分割算法的质量。然而,这些质量的评估还远远没有得到解决,因为大多数现有的指标没有考虑到网格的规律性,并且只基于一个地面真值分割进行比较,这带来了一个严重的问题,因为几乎所有的3D物体都有多个参考分割。因此,本文提出了一种新的基于Kulczynski相似度指数的客观评价指标。该方法支持与多个地面真值分割的比较,并考虑了网格的不规则性。已经进行了几个实验来证明我们提出的方法的判别能力。
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引用次数: 6
Traditional, Web-based or Internet-enabled ERP systems adoption for SMEs in Developing Countries 发展中国家中小企业采用传统的、基于网络的或基于互联网的ERP系统
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905659
AmineArrahmane Achargui, A. Zaouia
SMEs are the growth engine of a developing country's economy. It is actively contributing to GDP and employment. In consequence, SMEs financing support, ICT adoption promotion and SME's favorable evolution environment creation by policy makers, help reduce the digital divide in this era of the knowledge economy. High penetration and lower costs of Internet connectivity, Web technologies standardization, more ERP systems offerings targeted to SMEs, commodity hardware and Free/Libre & Open Source Software (FLOSS) large adoption. Makes Web-based and Internet-enabled ERP systems to be taken into consideration by SMEs, international aid agencies and local policy makers, to increase the productivity of SMEs and ease their daily living and evolution.
中小企业是发展中国家经济增长的引擎。积极为国内生产总值和就业做出贡献。因此,政策制定者对中小企业的融资支持、促进信息通信技术的采用以及为中小企业创造有利的发展环境,有助于缩小知识经济时代的数字鸿沟。互联网连接的高渗透率和低成本,网络技术标准化,更多针对中小企业的ERP系统产品,商品硬件和免费/自由和开源软件(FLOSS)的广泛采用。促使中小企业、国际援助机构和地方决策者考虑基于网络和互联网的ERP系统,以提高中小企业的生产力,并使其日常生活和发展更加便利。
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引用次数: 3
Ensuring video QoE using HTTP Adaptive Streaming: Issues and challenges 使用HTTP自适应流确保视频QoE:问题和挑战
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905586
Hajer Gahbiche Msakni, H. Youssef
HTTP adaptive streaming is used by a numerous video streaming services in the internet. It facilitates video streaming through heterogeneous network, without the need of a dictated streaming infrastructure. The benefit of HTTP Adaptive Streaming, compared to classical HTTP, is the reduction of the interruption, i.e. stalling event, and the use of bandwidth. This technology tries to adapt the video to the variation of the network condition. It take into account different information such as end user device capacity, available bandwidth, video quality level, current network conditions, and current server load. It enable, also, the service provide to improve resource utilization and the perceived video quality, i.e. Quality of Experience. This paper introduces the reader this important concept. It presents also a newest classification of different HAS's influencing factors. The different issues and challenges related to HTTP Adaptive Streaming are also discussed in this paper.
HTTP自适应流被互联网上的许多视频流服务所使用。它促进了通过异构网络的视频流,而不需要指定的流基础设施。与经典HTTP相比,HTTP自适应流的好处是减少了中断(即停止事件)和带宽的使用。该技术试图使视频适应网络条件的变化。它考虑了不同的信息,如终端用户设备容量、可用带宽、视频质量水平、当前网络条件和当前服务器负载。它还使服务提供能够提高资源利用率和感知视频质量,即体验质量。本文向读者介绍了这一重要概念。并对不同HAS的影响因素进行了最新的分类。本文还讨论了与HTTP自适应流相关的各种问题和挑战。
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引用次数: 1
Efficient electrocardiogram (ECG) lossy compression scheme 有效的心电图(ECG)有损压缩方案
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905608
A. Hatim, R. Latif, Oussama El Bachari, M. Arioua
A new electrocardiogram (ECG) lossy compression scheme has been developed. The algorithm can reach high compression ratios with a reduced error which makes it suitable for real-time electrocardiogram monitoring. The new algorithm is based on delta coding technique. Low and high coding categories were made to encode the differences and insure an optimized compressed signal. In addition the number of successive coded differences is flexible and defined with a window size. A new frame format was developed to transmit data. The algorithm has been verified using multiple and most frequent normal and pathological types of cardiac signals from MIT-BIH physionet data bases. The algorithm can reach a mean compression ratio of 33.45 and a mean PRD of 0.25%. The proposed algorithm has a low complexity and is very suitable for hardware designs.
提出了一种新的心电图有损压缩方案。该算法具有较高的压缩比和较小的误差,适合于实时心电图监测。该算法基于增量编码技术。采用高、低两种编码分类对差异进行编码,确保压缩信号的优化。此外,连续编码差异的数量是灵活的,并使用窗口大小来定义。开发了一种新的帧格式来传输数据。该算法已经使用来自MIT-BIH physionet数据库的多种和最常见的正常和病理类型的心脏信号进行了验证。该算法的平均压缩比为33.45,平均PRD为0.25%。该算法复杂度低,非常适合硬件设计。
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引用次数: 1
Design of substrate integrated waveguide cavity bandpass filters 基板集成波导腔带通滤波器的设计
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905668
Ahmed Rhbanou, M. Sabbane, S. Bri
The paper is presenting two bandpass filters based on the SIW technique design operating in two frequency bands: C and X. The first filter used in C-band has a fractional bandwidth of 3.8 % centered at 6 GHz and insertion loss of 0.9 dB. The second in the frequency band 8–12.5 (X-band) has a fractional bandwidth 2.7 % centered at the midband frequency 9.27 GHz with insertion loss of 0.84 dB and an out-of-band rejection level of 70 dB.
本文提出了两种基于SIW技术的带通滤波器设计,工作在两个频段:C和x。第一个用于C波段的滤波器的分数带宽为3.8%,以6 GHz为中心,插入损耗为0.9 dB。第二个在频段8-12.5 (x波段),以中频9.27 GHz为中心的分数带宽为2.7%,插入损耗为0.84 dB,带外抑制电平为70 dB。
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引用次数: 3
Using Mel Frequency Cepstral Coefficient method for online Arabic characters handwriting recognition 基于Mel频率倒谱系数法的在线阿拉伯字符手写识别
Pub Date : 2016-09-01 DOI: 10.1109/ICMCS.2016.7905532
Fateh Bougamouza, Samira Hazmoune, Mohammed Benmohammed
This paper presents an approach to extract features of online Arabic handwritten characters by combining offline features with Mel Frequency Cepstral Coefficients (MFCCs); indeed, these latter are commonly used as features in speech recognition systems. In this work, we have adapted MFCC method to online handwriting recognition area, and we investigate the classification performance of the MFCC with Hidden Markov Models (HMMs) for online Arabic handwritten character recognition, by varying some MFCC and HMM parameters such as sampling frequency, frame size, frame increment and number of HMM states. Besides, we have proposed a new solution of the problem of distributing points unevenly along the stroke curve, due to the variation in writing speed. This solution is appropriate for the online Arabic handwriting recognition systems for the reason of preserving information of the original character signal. The proposed system is evaluated using NOUN dataset and it gives an excellent recognition rate up to 96% which outperforms that reported by NOUN dataset owner in [1,2].
提出了一种将离线特征与Mel频率倒谱系数(MFCCs)相结合的在线阿拉伯手写字符特征提取方法;事实上,后者通常被用作语音识别系统的特征。本文将MFCC方法应用于在线手写体识别领域,通过改变MFCC和HMM的采样频率、帧大小、帧增量和HMM状态数等参数,研究了隐马尔可夫模型(HMM)对在线阿拉伯手写体字符识别的分类性能。此外,针对书写速度变化导致笔画曲线上点分布不均匀的问题,提出了一种新的解决方案。该方案保留了原始字符信号的信息,适用于在线阿拉伯文手写识别系统。使用名词数据集对该系统进行了评估,其识别率高达96%,优于名词数据集所有者在[1,2]中报告的识别率。
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引用次数: 3
期刊
2016 5th International Conference on Multimedia Computing and Systems (ICMCS)
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