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2011 International Conference on Internet Computing and Information Services最新文献

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Enhancing Classroom Education with Instant Messaging Tools 利用即时通讯工具加强课堂教育
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.27
Xiaoming Yao
Instant Messaging (IM) tools have been popularly spread over the campus in recent years due to its good interactivity for geographically distributed users. Many lecturers have chosen one of the IM tools as complementary means to improve their classroom teaching effects. In this paper, a number of issues we experienced are presented, including privacy concerns, trade-off between efficiency and fairness, and inside or outside classroom. Then, a model previously published for peer to-peer time-free learning is discussed. Finally, a result of teaching practice using IM tools is presented, which approves promising use of IM tools based on this model.
近年来,即时消息(IM)工具由于其对地理分布的用户具有良好的交互性而在校园中得到了广泛的应用。许多讲师选择其中一种即时通讯工具作为辅助手段,以提高课堂教学效果。在本文中,提出了我们所经历的一些问题,包括隐私问题,效率与公平之间的权衡,以及课堂内外。然后,讨论了先前发表的点对点无时间学习模型。最后,给出了使用即时通讯工具进行教学的实践结果,验证了基于该模型的即时通讯工具的应用前景。
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引用次数: 4
A Heuristic Genetic Neural Network for Intrusion Detection 一种用于入侵检测的启发式遗传神经网络
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.133
Bi-ying Zhang
In order to model normal behaviors accurately and improve the performance of intrusion detection, a heuristic genetic neural network(HGNN) is presented. Feature selection, structure design and weight adaptation are evolved jointly in consideration of the interdependence of input features, network structure and connection weights. The penalty factors for the number of input nodes and hidden nodes are introduced into fitness function. The crossover operator based on generated subnet is adopted considering the relationship between genotype and phenotype. An adaptive mutation rate is applied, and the mutation type is selected heuristically from weight adaptation, node deletion and node addition. When the population is not evolved continuously for many generations, in order to jump from the local optima and extend the search space, the mutation rate will be increased and the mutation type will be changed. Experimental results with the KDD-99 dataset show that the HGNN achieves better detection performance in terms of detection rate and false positive rate.
为了准确建模正常行为,提高入侵检测的性能,提出了一种启发式遗传神经网络(HGNN)。考虑输入特征、网络结构和连接权值的相互依赖关系,特征选择、结构设计和权值自适应共同演化。在适应度函数中引入了输入节点数和隐藏节点数的惩罚因子。考虑到基因型和表型之间的关系,采用基于生成子网的交叉算子。采用自适应突变率,从权值自适应、节点删除和节点添加三个方面启发式地选择突变类型。当种群不进行多代连续进化时,为了跳出局部最优点,扩展搜索空间,会增加突变率,改变突变类型。在KDD-99数据集上的实验结果表明,HGNN在检测率和假阳性率方面具有更好的检测性能。
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引用次数: 8
Model of Eco-logistics System Based on Circular Economy 基于循环经济的生态物流系统模型
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.151
Yuan Feng
Facing the historical task of realizing industrialization, to develop recycling economy is the necessary way for us to resolve the resource constraint and realize sustainable development. To develop recycling economy, it is impracticable to adopt the traditional approach to industrialization. We must accelerate the pace of technological innovation and develop high technology and green technology under the guidance of new concept of development, then implement the transformation of traditional industries. Anyhow, it is important to take the new approach according with the recycling economy to realize industrialization. First described a circular economy and ecological background of the birth of logistics, Secondly, the deep ecology discussed the basic principles of logistics operation, that is symbiotic theory, loop theory, the effective limit of principle and co-evolution theory, again, building a circular economy based on ecologistics system model, Finally, an ecological strategy for the operation of the logistics system of innovation.
面对实现工业化的历史任务,发展循环经济是解决资源约束、实现可持续发展的必然途径。要发展循环经济,走传统的工业化道路是行不通的。必须以新发展理念为指导,加快技术创新步伐,发展高新技术和绿色技术,实施传统产业改造。总之,走符合循环经济的新路子是实现产业化的重要途径。首先阐述了循环经济和生态物流诞生的背景,其次,深入探讨了生态物流运行的基本原理,即共生理论、循环理论、有效极限原理和协同进化理论,再次,构建了基于生态循环经济的物流系统模型,最后,提出了物流系统运行的生态策略创新。
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引用次数: 4
Comparative Analysis on Spatio-Temporal Land Use and Land Cover (LULC) Characteristics in Three Asia Cities 亚洲3个城市土地利用/土地覆盖时空特征比较分析
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.52
X. Zou, Zhen Shang, I. Odeh, Yizhao Chen, Jian-long Li
integration of Geographical Information System (GIS) and Remote Sensing (RS) methods is one of the most important methods for detecting LULC's change. In this study, with the support of GIS, RS technology and based on recent 10 years LULC data, the landscape pattern dynamics and regional spatio-temporal features related with the LULC change of three metropolis in Asian region, Zhangjiagang (China), Dehradun (India), and Hanoi (Vietnam) are analyzed. We mapping the LULC using supervised method with parallelepiped-maximum likelihood algorithm in ERDAS Imagine 9.1 of the study area based on three consecutive satellite images: Land sat TM, Land sat ETM+ and ASTER. The regional feature of the three cities illustrates different development direction, and the urbanization process of the cities was at different stages. Zhangjiagang was found at the highest stage of urbanization, and with the significant high per capita income level. Hanoi and Dehradun were demonstrated a moderate degree of urbanization and extensive land alternation of agricultural and non-used land to urban area. In Hanoi, Vietnam's capital city, urban agriculture is a longstanding feature, but rapid urban growth is leading to greater competition over land use. In Dehradun, urban areas increased from 96.15 ha to 150.23 ha while agricultural areas decreased from 91.59ha to 45.33ha from 2000-2009. Urban class showed an overall amount and extent of change from 28023 ha to 33215 ha while agricultural areas decrease from 45031 to 41173 during 2002-2010 in Zhangjiagang. As the result, the issue of low quality and security of food was concerned in these three areas. Government support has encouraged urban producers to modernize and invest in safer developing practices. However, in these cities, as indeed elsewhere, there is an urgent need to recognize the significance of sustainable development, agriculture and native forest area reservation in future planning strategies. This kind of strategies identifies key trends and underlying environmental and socio-economic factors, and considers the future sustainability of the practice.
地理信息系统(GIS)与遥感(RS)相结合是土地利用价值变化监测的重要手段之一。本文以中国张家港、印度德拉敦和越南河内3个亚洲大都市为研究区域,在GIS、RS技术支持下,基于近10年城市土地利用碳储量数据,分析了城市土地利用碳储量变化的景观格局动态和区域时空特征。基于landsat TM、landsat ETM+和ASTER三幅连续卫星图像,利用ERDAS Imagine 9.1软件中的平行六面体-最大似然算法,利用监督方法对研究区LULC进行制图。三个城市的地域性特征说明了不同的发展方向,城市的城市化进程处于不同的阶段。张家港市处于城市化的最高阶段,人均收入水平显著偏高。河内市和德拉敦市城市化程度中等,农业用地和未利用用地向城市地区广泛转移。在越南首都河内,城市农业是一个长期存在的特点,但快速的城市发展正在导致对土地使用的更大竞争。在德拉敦,2000-2009年,城市面积从96.15公顷增加到150.23公顷,而农业面积从91.59公顷减少到45.33公顷。2002-2010年,张家港城市类总体数量和变化程度从28023 ha减少到33215 ha,农业类从45031 ha减少到41173 ha。因此,食品质量和安全问题在这三个领域受到关注。政府的支持鼓励城市生产者实现现代化,并投资于更安全的发展做法。然而,在这些城市和在其他地方一样,迫切需要认识到可持续发展、农业和原始森林地区保留在未来规划战略中的重要性。这种策略确定了关键趋势和潜在的环境和社会经济因素,并考虑了实践的未来可持续性。
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引用次数: 1
Performance Improvement of Audio-Visual Speech Recognition with Optimal Reliability Fusion 基于最优可靠性融合的视听语音识别性能改进
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.58
M. Tariquzzaman, Song-Min Gyu, Kim Jin Young, Na Seung You, M. A. Rashid
In state-of-the-art ASR technology, audio and video (AV) information based speech recognition is one of key challenges to cope with noise problem. AV fusion is one of the robust approaches for ASR. The main issues of AV fusion is where and how to integrate the two modalities' information. To enhance the AV fusion performance the paper [1] has proposed the optimum reliability fusion (ORF) and applied the ORF to AV speaker identification. In this paper we adopt the ORF based fusion in AV based speech recognition and evaluate the performance improvement in that domain. The ORF's main idea is to introduce weighting factors in score-base reliability measure (SCRM) for solving the over- or under-estimation problem in SCRM calculation. Our AV speech recognition system is implemented for Korean digit recognition using SAMSUMG AV database. Experimental results show that ORF effectively reduce the relative error rate of 42.8% in comparison with the baseline system adopt the previous AV fusion scheme [2].
在先进的ASR技术中,基于音频和视频(AV)信息的语音识别是解决噪声问题的关键挑战之一。AV融合是治疗ASR的有效方法之一。AV融合的主要问题是在哪里以及如何整合两种模式的信息。为了提高AV融合的性能,文献[1]提出了最优可靠性融合(ORF),并将其应用于AV说话人识别。本文将基于ORF的融合应用于基于AV的语音识别中,并对该领域的性能改进进行了评估。ORF的主要思想是在分数基可靠性度量(SCRM)中引入加权因子,以解决SCRM计算中的高估或低估问题。我们的AV语音识别系统是使用SAMSUMG AV数据库实现的韩文数字识别。实验结果表明,与采用先前AV融合方案的基线系统相比,ORF有效降低了42.8%的相对错误率[2]。
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引用次数: 4
E-government Framework Design Based on Grid Technology 基于网格技术的电子政务框架设计
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.88
Tao Lu, Qin Lin, Haitao Lv
In recent years, grid technology is more and more popular to design e-government in domestic and foreign. This paper analyses the characters of grid technology, proposes the framework of e-government based on grid technology, and lists the key problems in implementation.
近年来,国内外越来越多地采用网格技术设计电子政务。分析了网格技术的特点,提出了基于网格技术的电子政务框架,并列举了实现过程中的关键问题。
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引用次数: 1
Analytical Model and Simulation for AlGaN/GaN High Electron Mobility Transistor AlGaN/GaN高电子迁移率晶体管的分析模型与仿真
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.93
J. Xia, Yang Ruixia, Zhao Zhengping, Z. Zhiguo, Feng Zhihong
Based on the charge control theory, a accurate analytical model of I-V characteristics for AlGaN/GaN high electron mobility transistor (HEMT) is presented considering the relationship between self-heating effect and polarization, electron mobility, velocity saturation, conduction band discontinuity, doping concentration, channel temperature. The comparison between simulations and physical calculation shows a good agreement. The model is simple in calculations, suitable for design of microwave device and circuit.
基于电荷控制理论,综合考虑极化、电子迁移率、速度饱和、导带不连续、掺杂浓度、通道温度等因素的影响,建立了AlGaN/GaN高电子迁移率晶体管(HEMT) I-V特性的精确解析模型。仿真结果与实际计算结果吻合较好。该模型计算简单,适用于微波器件和电路的设计。
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引用次数: 2
New DFE with Phase-Locked Loop 新型锁相环DFE
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.150
Wei Rao, Huijuan Gao, B. Zou, Wen-qun Tan
In [1] the decision feedback equalizer (DFE) based on constant modulus algorithm (CMA) and decision directed (DD) adaptive algorithm was proposed. It has been proved that it is much more effective than the conventional DFEs such as DFE based on CMA and DFE based on DD. However when Doppler frequency shift occurs in the communication channel, which can result in carrier phase rotation, the decisions precision is very low which degrades the performance of these DFEs. Consequently based on the DFE in [1] a new DFE with phase-looked loop (PLL) is proposed. The PLL works in CMA part which can offer correct decision for DD, so the proposed method can obtain lower steady state MSE and compensate phase rotations. The efficiency of the method is proved by computer simulation.
在[1]中,提出了基于常模算法(CMA)和决策导向(DD)自适应算法的决策反馈均衡器(DFE)。实践证明,该算法比基于CMA的DFE和基于DD的DFE更有效,但当通信信道中发生多普勒频移导致载波相位旋转时,决策精度很低,降低了DFE的性能。在此基础上,提出了一种新的带相环的DFE。锁相环工作在CMA部分,可以对DD进行正确的判断,因此该方法可以获得较低的稳态MSE并补偿相位旋转。计算机仿真验证了该方法的有效性。
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引用次数: 0
Impedance Control for Vehicle Driving with Human Operation Under Unstructured Environment 非结构化环境下人工驾驶车辆的阻抗控制
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.46
Zhou Shenghao, Song Jinchun
In the human-machine systems impedance control and admittance control methods are wildly used. Impedance control is a dynamic mapping from motion to force and admittance control is a dynamic mapping from force to motion. In this paper, position-based impedance control system is constructed in human-vehicle interaction to adapt to human operation under unstructured environment. For predicting the desired impedance, a predictive fuzzy inference algorithm is purposed. Finally an experiment using driving simulator is set up to verify the effectiveness of constructed impedance control system.
在人机系统中,阻抗控制和导纳控制方法被广泛应用。阻抗控制是运动到力的动态映射,导纳控制是力到运动的动态映射。为了适应非结构化环境下人的操作,本文在人车交互中构建了基于位置的阻抗控制系统。为了预测期望阻抗,提出了一种预测模糊推理算法。最后通过仿真实验验证了所构建的阻抗控制系统的有效性。
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引用次数: 7
Grid Technology and e-government 网格技术与电子政务
Pub Date : 2011-09-17 DOI: 10.1109/ICICIS.2011.21
J. Zhang
Grid is the main technology in the e-government systems, based on characters of grid technology, we put forward to setup the e-government systems with different levels, this technology would be widely used in the future.
网格是电子政务系统的主要技术,根据网格技术的特点,提出了分层次构建电子政务系统,该技术将在未来得到广泛应用。
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引用次数: 0
期刊
2011 International Conference on Internet Computing and Information Services
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