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2009 First International Workshop on Education Technology and Computer Science最新文献

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A Method for Classification of English Reading Materials Based on Web Information Mining 基于Web信息挖掘的英语阅读材料分类方法
Hao Wu
With the continuous improvement of information technology and increasing numbers of Web resources, the mode of English reading teaching has changed fundamentally, and the diversity and flexibility of English reading materials achieve a great progress. Because English reading materials were hand-election selection, subjects were lack of varieties and the classification work was heavy, this paper provides a model for automation classification of English reading materials based on web information mining. Through this method, it will provide an effective method for building a highly efficient and practical system of automatic classification of English reading materials.
随着信息技术的不断进步和网络资源的不断增多,英语阅读教学模式发生了根本性的变化,英语阅读材料的多样性和灵活性取得了长足的进步。针对英语阅读材料手工选材、主题种类少、分类工作量大等问题,提出了一种基于web信息挖掘的英语阅读材料自动化分类模型。通过这种方法,为构建高效实用的英语阅读材料自动分类系统提供了一种有效的方法。
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引用次数: 1
Application of RFID Technology in Railway Track Inspection RFID技术在铁路轨道检测中的应用
B. Yan, Wan Yu
In order to improve standardization, control level of railway track inspection, and monitor inspectors scientifically and accurately, this paper brings forward a supervisor mode of patrol inspection based radio frequency identification (RFID) and information management technologies. The railway track inspection system is composed of information buttons mounted in milestones or electric poles, portable data acquisition instruments (palm and reader) and terminal system used to manage data, etc. Practical applications of this system help to reduce workload of patrol inspection, increase the ratio of arriving appointed places during patrol inspection, provide credible information for management of railway equipments drawbacks, and thereby, increase the quality of railway track inspection, prevent equipment accidents, and ensure travel safety.
为了提高铁路轨道巡查工作的规范化和控制水平,科学、准确地对巡查人员进行监控,提出了一种基于射频识别(RFID)和信息管理技术的巡查监督模式。铁路轨道检测系统由安装在里程碑或电线杆上的信息按钮、便携式数据采集仪(掌上和读写器)、用于数据管理的终端系统等组成。该系统的实际应用有助于减少巡查工作量,提高巡查时到达指定地点的比例,为铁路设备缺陷的管理提供可靠的信息,从而提高铁路轨道巡查质量,防止设备事故的发生,保障出行安全。
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引用次数: 3
Research and Realization of Digital Watermark for Picture Protecting 用于图像保护的数字水印的研究与实现
Hongru Wei, Minggang Yuan, J. Zhao, Zhiyin Kou
The researches and applications for Digital watermarking technology are more and more extensive, at present, they mainly embodied in the watermark image, video watermarking, as well as voice in areas such as watermarks. This paper based on the popular image scrambling in the Arnold transform method gives the image on the protection of digital watermarking algorithm, the embedded watermark information to the original digital image products, but does not affect the content of the original value, the image of the copyright to do a lot of good protection, the experiment proved to be more robust performance and value.
数字水印技术的研究和应用越来越广泛,目前主要体现在图像水印、视频水印以及语音水印等领域。本文基于目前流行的图像置乱中的阿诺德变换方法给出了对图像进行数字水印保护的算法,将嵌入的水印信息保留到原始数字图像产品中,而不影响原始内容的价值,对图像的版权做了很多很好的保护,实验证明了该算法具有较强的鲁棒性和价值。
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引用次数: 9
Parallel Framework for Real-time DSP Implementation of EBC Algorithm 并行框架实时DSP实现EBC算法
Zhen Zuo, Shaojing Su, Liebo Du
JPEG2000, the state-of-the-art image compression standard, has many advantages, such as high compression efficiency and high image fidelity. However, because of its high computational complexity, real-time hardware implementation of JPEG2000 becomes a big problem when using it in deadline constrained applications. EBC algorithm is the main part of JPEG2000 which comprises more than 50% of the computational complexity. Aiming at the shortcut of the EBC framework which is not suitable for the establishment of DSP software pipeline, a parallel framework for real-time DSP implementation of EBC algorithm is proposed in this paper. The original bit-plane coding module is firstly partitioned into bit-plane scanning module and arithmetic coding module. Then the sign coding is separated from the bit-plane scanning module and implemented ahead. And the multiple loops of the bit-plane scanning module are unrolled with context combining. By these optimizations, the software pipeline of the EBC algorithm can be established which leads to an eight-time faster implementation speed.
JPEG2000是目前最先进的图像压缩标准,具有压缩效率高、图像保真度高等优点。然而,由于JPEG2000的高计算复杂度,在有时限限制的应用中使用它时,实时硬件实现成为一个大问题。EBC算法是JPEG2000的主要部分,其计算量占JPEG2000计算量的50%以上。针对EBC框架不适合建立DSP软件流水线的捷径,本文提出了一种EBC算法实时DSP实现的并行框架。首先将原位平面编码模块划分为位平面扫描模块和算术编码模块。然后将符号编码从位平面扫描模块中分离出来,提前实现。并结合上下文展开位平面扫描模块的多个环路。通过这些优化,建立了EBC算法的软件流水线,实现速度提高了8倍。
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引用次数: 0
Decision Support Systems for Improving Irrigation Scheme Management in Arid Area 改进干旱区灌溉方案管理的决策支持系统
Z. X. Leng, H. Yimit
Soil salinization is mainly an arid-zone problem leading to land desertification. It reduces soil quality and limits the growing of crops. The paper mainly aims at the actuality that soil salinization deteriorates in oasis and irrigation scheme management is unreasonable from the point of view that develop irrigation decision support system(DSS) about irrigation area management, and studies the optimal distributing of irrigation water in the irrigation area which take the Yutian oasis demonstration area as an example. The irrigation DSS is developed based on irrigation scheme management scenario which solves the muti-object models and geographic information system (GIS) which support spatial management. The irrigation DSS includes information systems that perform data acquisition, management and visualization, and models that performs simulation and optimization of the irrigation scheme. Multiple, competitive targets and constraints with different priorities can be set. The studying of irrigation DSS in irrigation area will provide scientific decision basis and design scheme for reasonably ascertaining the type of irrigation area and scientific management and optimal allotting of agriculture water resources in the arid area.
土壤盐渍化主要是导致土地沙漠化的干旱区问题。它降低了土壤质量,限制了农作物的生长。本文主要针对绿洲土壤盐渍化恶化、灌溉方案管理不合理的现状,从开发灌区管理灌溉决策支持系统(DSS)的角度出发,以于田绿洲示范区为例,研究了灌区灌溉水的优化配置。灌溉决策支持系统是基于灌溉方案管理场景开发的,解决了多目标模型和支持空间管理的地理信息系统(GIS)。灌溉DSS包括执行数据采集、管理和可视化的信息系统,以及执行灌溉方案模拟和优化的模型。可以设置具有不同优先级的多个竞争性目标和约束。灌区灌溉DSS的研究将为干旱区灌区类型的合理确定和农业水资源的科学管理与优化配置提供科学的决策依据和设计方案。
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引用次数: 5
The Construction of the Remote Control Virtual Collaborative Training Platform 远程控制虚拟协同培训平台的构建
Huajun Chen, Jiansheng Yu
Virtual collaborative environment can provide a virtual space in which users can immerse. It can support collaborative operations by multi-users. Based on the results of collaborative work modules researching and implementing mechanisms, an implementing solution of remote control network virtual collaborative training platform is proposed. Taking a central-condition system as an example, it illustrates the remote education platform realization, remote control collaborative studying design and the application of virtual technology and the critical technology for realization.
虚拟协作环境可以提供一个用户可以沉浸其中的虚拟空间。支持多用户协同操作。基于协同工作模块的研究成果和实现机制,提出了远程控制网络虚拟协同培训平台的实现方案。以某中央空调系统为例,阐述了远程教育平台的实现、远程控制协同学习的设计、虚拟技术的应用及实现的关键技术。
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引用次数: 0
Designing a Team Teaching Program for Language Teaching and Learning: A Case Study 设计语言教学的团队教学计划:个案研究
Yinjian Jiang, Jianhua Zhao
This paper discusses how to design a team teaching program for language teaching and learning for an undergraduate intensive reading course. The purpose of this study is to investigate how team teaching is applied and how it influences faculty and students. Team teaching plan, methodology, and pilot study were discussed in order to suggest the concrete steps to team teaching in this kind of course and transfer our understandings and success to other courses, such as senior teachers cooperate with junior teachers, foreign teachers cooperate with domestic teachers.
本文探讨了如何设计本科精读课语言教与学的团队教学方案。本研究的目的是探讨团队教学如何应用,以及团队教学如何影响教师和学生。通过对团队教学计划、团队教学方法、团队教学试点等方面的探讨,提出了在该课程中开展团队教学的具体步骤,并将我们的理解和成功经验推广到其他课程中,如高级教师与初级教师合作、外籍教师与国内教师合作等。
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引用次数: 2
An Autonomy Agent BDI Architecture Based on Pi Calculus 基于Pi演算的自治Agent BDI体系结构
Jian Zhang, Guang-zhou Zeng
In the research of Agent theory and technology, BDI model is the most studied one with the broadest applications. But it lacks specific mapping relationship research between BDI model and particular Agent architecture. In this paper, we firstly establish abstract mapping between BDI model and Agent autonomy, then stimulate human being autonomy mechanism, establish specific mapping relationship between autonomy Agent BDI architecture and individual autonomy, map Agent autonomy belief to inside blackboard, autonomy desire to controller, autonomy intention to sensor, effector and data operator, and define this autonomy Agent BDI architecture using monadic Pi calculus. Based on our theoretical analysis, this architecture can achieve autonomy because of its closed loop feedback.
在智能体理论与技术的研究中,BDI模型是研究最多、应用最广泛的模型。但缺乏具体的BDI模型与特定Agent体系结构之间的映射关系研究。本文首先建立了BDI模型与Agent自治之间的抽象映射,然后激发人的自治机制,建立了自治Agent BDI体系结构与个体自治之间的具体映射关系,将Agent自治信念映射到内部黑板,将自治愿望映射到控制器,将自治意图映射到传感器、效应器和数据算子,并利用一元Pi演算定义了这种自治Agent BDI体系结构。根据我们的理论分析,该架构由于其闭环反馈,可以实现自治。
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引用次数: 0
Texture Classification and Segmentation Based on Bidimensional Empirical Mode Decomposition and Fractal Dimension 基于二维经验模态分解和分形维数的纹理分类与分割
L. Ling, Li Ming, YuMing Lu
In this paper, we proposed a scheme for texture classification and segmentation. The methodology involves an extraction of texture features using bidimensional empirical mode decomposition and fractal dimension, then, is followed by a k-means based classifier which assigns each pixel to the class. In feature extraction, firstly, the intrinsic mode functions which directly from image data by means of bidimensional empirical mode decomposition were obtained. Secondly, we calculate the boxing fractal dimension of each intrinsic mode function as texture features. After feature extraction, K-means clustering is performed to the texture image. The main contribute of our approach is to using fractal dimension of each IMF as texture feature. Preliminary result, this scheme show high recognition accuracy in the classification of brodatz texture images, and it can be also successfully applied to image segmentation.
本文提出了一种纹理分类和分割方案。该方法包括使用二维经验模式分解和分形维数提取纹理特征,然后是基于k均值的分类器,该分类器将每个像素分配给类。在特征提取中,首先利用二维经验模态分解方法直接从图像数据中提取固有模态函数;其次,计算各固有模态函数的装箱分形维数作为纹理特征;特征提取后,对纹理图像进行K-means聚类。该方法的主要贡献是利用每个IMF的分形维数作为纹理特征。初步结果表明,该方案在对brodatz纹理图像的分类中显示出较高的识别准确率,并可成功应用于图像分割。
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引用次数: 15
The Research of Network Quality Courses Evaluation System Based on Feedback 基于反馈的网络精品课程评价体系研究
Zhang Weidong, L. Zhiqin, Liu Yong, Sun Junxia
In view of the construction of quality courses for network instruction, one of the essential questions is how to evaluate the quality courses website whether to suit the learners. This article proposes a new method, gives every learning-content page and testing exercise a serial number, which causes the collection and reorganization of data becoming easy. At the same time, the relation between behavior and achievement of learners can be feedback accurately through the way of questionnaire survey and network test. Finally, the instruction design of quality courses website will meet the demand of e-learning more.
针对网络教学精品课程的建设,如何评价精品课程网站是否适合学习者是一个重要的问题。本文提出了一种新的方法,给每个学习内容页面和测试练习一个序列号,使数据的收集和重组变得容易。同时,通过问卷调查和网络测试的方式,可以准确地反馈学习者的行为与成绩之间的关系。最后,精品课程网站的教学设计更能满足电子学习的需求。
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2009 First International Workshop on Education Technology and Computer Science
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