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2013 27th International Conference on Advanced Information Networking and Applications Workshops最新文献

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Structured and Unstructured Data in the Cloud: A Swiss Perspective on Readiness and Internal Controls 云中的结构化和非结构化数据:瑞士对准备和内部控制的看法
David Simms, S. Ghernaouti-Helie
The concept of cloud computing has become one of the hot topics in the world of corporate information systems in recent years. Organisations are always interested in initiatives that allow them to pay less attention to the more mundane areas of information system management, such as maintenance, capacity management and storage management, and free up time and resources to concentrate on more strategic and tactical issues that are commonly perceived as being of higher value. A moment's consideration reveals, however, that the use of cloud computing services, like the use of outsourcing facilities, is not necessarily a panacea. Management will always retain responsibility for the confidentiality, integrity and availability of its applications and data, and being able to develop the confidence that these issues have been addressed. This paper outlines the background to cloud computing and presents the results of a survey of Swiss organisations and their attitudes towards data management and the use of the cloud.
近年来,云计算的概念已成为企业信息系统领域的热门话题之一。组织总是对那些允许他们较少关注信息系统管理的世俗领域(如维护、容量管理和存储管理)并腾出时间和资源来专注于通常被认为具有更高价值的更具战略性和战术性的问题的计划感兴趣。然而,稍作考虑就会发现,使用云计算服务,就像使用外包设施一样,并不一定是万灵药。管理层将始终对其应用程序和数据的机密性、完整性和可用性负责,并能够建立这些问题已得到解决的信心。本文概述了云计算的背景,并介绍了对瑞士组织及其对数据管理和云使用的态度的调查结果。
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引用次数: 2
Detecting Local Events by Analyzing Spatiotemporal Locality of Tweets 通过分析推文的时空局部性来检测局部事件
Takuya Sugitani, Masumi Shirakawa, T. Hara, S. Nishio
In this paper, we study how to detect local events regardless of the size and the type using Twitter, a social networking service. Our method is based on the observation that relevant tweets are simultaneously posted from the place where a local event is happening. Specifically, our method first extracts the place where and the time when multiple tweets are posted by using clustering techniques and then detects the co-occurrence of key terms in each cluster to find local events. For determining key terms, our method also leverages spatiotemporal locality of tweets. From experimental results on tweet data from 9:00 to 15:00 on October 9, 2011, we confirmed the effectiveness of our method.
在本文中,我们研究了如何使用Twitter(一种社交网络服务)检测本地事件,无论其大小和类型。我们的方法是基于这样一种观察,即相关的tweet是同时从本地事件发生的地方发布的。具体来说,我们的方法首先使用聚类技术提取多个tweet发布的地点和时间,然后检测每个聚类中关键词的共现情况,以查找本地事件。为了确定关键术语,我们的方法还利用了tweet的时空局部性。从2011年10月9日9:00 - 15:00的tweet数据的实验结果中,我们证实了我们方法的有效性。
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引用次数: 17
Performance Evaluation of WMN-GA System for Node Placement in WMNs Considering Normal Distribution of Mesh Clients and Different Selection and Mutation Operators 考虑网格客户端正态分布和不同选择和变异算子的WMN-GA系统节点放置性能评价
Admir Barolli, Tetsuya Oda, Evjola Spaho, L. Barolli, F. Xhafa, M. Takizawa
Wireless Mesh Networks (WMNs) are currently attracting a lot of attention from wireless research and technology community due to their importance for providing cost-efficient broadband wireless connectivity. Issues for achieving the network connectivity and user coverage are related with the node placement problem. In this paper, we evaluate the performance of WMN-GA system for node placement problem in WMNs. For evaluation, we consider Normal Distribution of mesh clients and different selection and mutation operators. The population size is considered 64 and the number of generation 200. For evaluation, we consider the giant component and the number of covered users metrics. The simulation results shows that the WMN-GA system performs better for Single Mutation and Linear Ranking.
无线网状网络(WMNs)由于其在提供低成本的宽带无线连接方面的重要作用,目前正受到无线研究和技术界的广泛关注。实现网络连接和用户覆盖的问题与节点放置问题有关。在本文中,我们评估了WMN-GA系统在wmn节点放置问题上的性能。为了进行评估,我们考虑了网格客户端的正态分布和不同的选择和变异算子。种群规模为64,世代数为200。为了进行评估,我们考虑了巨大的组件和覆盖的用户数量。仿真结果表明,WMN-GA系统具有较好的单突变和线性排序性能。
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引用次数: 1
A Practical Steganographic Approach for Matroska Based High Quality Video Files 一种实用的基于Matroska的高质量视频文件隐写方法
N. Pitropakis, C. Lambrinoudakis, D. Geneiatakis, D. Gritzalis
Several steganographic algorithms have been proposed for protecting message secrecy against unauthorized "reads". The most used method for hiding a message relies on embedding the secret message in Least Significant Bit (LSB) on the cover object. Though various digital formats have been proposed in literature to be used as cover objects, little attention has been paid on Matroska multimedia containers. In this work, we propose a practical method for applying steganography in these types of files. The proposed method consists of three distinct phases. The first one encrypts the hidden message, the second embeds it to the stego cover, while at the final step the stego cover is attached to a Matroska container. We tested our approach in various scenarios in order to evaluate the introduced overhead. Results shows that the use of several sizes for TXT and WAV files did not introduce considerable overhead. Depending on the file size the introduce overhead can be between 1 to 3 seconds.
为了防止未经授权的“读取”,已经提出了几种隐写算法来保护信息的机密性。最常用的隐藏消息的方法是将秘密消息嵌入到覆盖对象的最低有效位(LSB)中。虽然文献中提出了各种数字格式作为封面对象,但很少有人关注Matroska多媒体容器。在这项工作中,我们提出了在这些类型的文件中应用隐写术的实用方法。该方法包括三个不同的阶段。第一个是加密隐藏的信息,第二个是将其嵌入到隐刀盖上,而在最后一步,隐刀盖被附加到Matroska容器上。为了评估引入的开销,我们在各种场景中测试了我们的方法。结果表明,使用不同大小的TXT和WAV文件并没有带来相当大的开销。根据文件大小的不同,引入开销可能在1到3秒之间。
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引用次数: 2
Mining Botnet Behaviors on the Large-Scale Web Application Community 大规模Web应用社区的僵尸网络行为挖掘
Dan Garant, Wei Lu
Botnets are networks of compromised computers controlled under a common command and control channel. Recognized as one of the most serious security threats on current Internet infrastructure, botnets are often hidden in existing applications, e.g. IRC, HTTP, or peer-to-peer, which makes botnet detection a challenging problem. In this paper we propose a new, centralized, fully-encrypted, botnet system called Weasel. A set of signatures are examined and formalized to differentiate the behaviors of Weasel and normal web applications. Through these signatures, we apply a set of data mining techniques to detect the web based botnet behaviors on a web application community formed on a campus backbone network. The proposed approach was evaluated with over 400 thousand flows collected over seven consecutive days on a large scale network and results show the proposed approach successfully detects the botnet flows with a high detection rate and an acceptably low false alarm rate.
僵尸网络是在一个共同的命令和控制通道下控制的受损计算机的网络。作为当前互联网基础设施中最严重的安全威胁之一,僵尸网络通常隐藏在现有的应用程序中,例如IRC, HTTP或点对点,这使得僵尸网络检测成为一个具有挑战性的问题。在本文中,我们提出了一种新的、集中的、完全加密的僵尸网络系统,称为Weasel。通过检查和形式化一组签名来区分Weasel和普通web应用程序的行为。通过这些签名,我们应用一套数据挖掘技术来检测校园骨干网上形成的web应用社区中基于web的僵尸网络行为。通过对连续7天采集的40多万流量的大规模网络进行评估,结果表明该方法能够成功检测僵尸网络流量,检测率高,虚警率低。
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引用次数: 14
Ant Colony Based Forwarding Method for Content-Centric Networking 基于蚁群的内容中心网络转发方法
Chengming Li, K. Okamura, Wenjing Liu
Content-Centric Networking has recently emerged as a clean slate approach to rethink Internet foundations, which changes from host-centric communication model to content-centric model. However, one of the major challenges is supporting intelligent forwarding of Interests over multiple paths while keeping scalability and mobility. To address this challenge, this paper proposed an domain-based intelligent forwarding method based on our previous work. We divided the network into multiple domains. We adopted the ISP-based aggregation to reduce the content naming space and used a domain-based Greedy Ant Colony Forwarding (GACF) algorithm to support intelligent forwarding of packets. There are two kinds of ants in GACF which take different policies in the Inter-domain Forwarding and the Intra-domain Forwarding. The GACF algorithm is a Quality of Service aware forwarding algorithm in the dynamic complex network. The results of the evaluation prove that our proposals improve the cost-efficiency and scalability for content-centric networking.
以内容为中心的网络最近作为重新思考互联网基础的一种全新方法出现,它从以主机为中心的通信模型转变为以内容为中心的模型。然而,主要的挑战之一是在保持可伸缩性和移动性的同时,支持多路径上的兴趣的智能转发。为了解决这一问题,本文在前人工作的基础上提出了一种基于域的智能转发方法。我们将网络划分为多个域。我们采用基于isp的聚合来减少内容命名空间,并采用基于域的贪婪蚁群转发(GACF)算法来支持数据包的智能转发。GACF中有两种蚂蚁,它们在域间转发和域内转发中采取不同的策略。GACF算法是一种动态复杂网络中感知服务质量的转发算法。评估结果表明,我们的方案提高了以内容为中心的网络的成本效率和可扩展性。
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引用次数: 21
Proposal of Solar Powered Grid Computing with Reuse Handheld Devices 基于可重用手持设备的太阳能电网计算方案
M. Yamagiwa, Katsuyoshi Matsumoto, M. Uehara
We consider a way as a grid computing platform in keeping with green IT. A grid computing platform can create a high performance environment consisting of ordinary computing devices. However, it has continuous energy requirements. This is undesirable in terms of environmental concerns, because of the increased CO2 emissions from generating the required electricity. Therefore, this study aimed at realizing a grid computing platform powered by solar power and low consumption electricity computation device to overcome the disadvantage. In this paper, in order to provide a movable system, we consider the steps to apply a handheld device using the ARM processor.
我们考虑了一种与绿色IT保持一致的网格计算平台。网格计算平台可以创建由普通计算设备组成的高性能环境。然而,它有持续的能量需求。从环境的角度来看,这是不可取的,因为产生所需的电力会增加二氧化碳的排放。因此,本研究旨在实现太阳能供电的网格计算平台和低功耗的电力计算设备来克服这一缺点。在本文中,为了提供一个可移动的系统,我们考虑了使用ARM处理器的手持设备的步骤。
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引用次数: 2
CPNoC: An Energy-Efficient Photonic Network-on-Chip 一种高能效的片上光子网络
Junhui Wang, Gang Han, Baoliang Li, Jia Lu, Wenhua Dou
Now energy efficiency is becoming the most critical design facet for the scaling of Network-on-Chip (NoC). Different with electronic network, photonic Network-on-Chip offers natural solutions to reduce energy consumption. In this paper, we propose an energy-efficient photonic Network-on-Chip with central controller (CPNoC). Our proposed on-chip network utilizes a hybrid architecture, comprised of an optical transmission network and an electronic control network. The most important feature of our proposed network is that electronic network uses just one central controller to process and forward control messages. Thus these control messages will not suffer from high hop count to reach destination node. Central controller holds a photonic switching element (PSE) state table and controls all PSEs' switch on/off. When a new control message arrives, it sets up or tears down an optical link quickly, according to the information carried by the message. Finally, we evaluate and compare the energy efficiency and average transmission latency for 16-/64-core electronic NoC, photonic mesh NoC and CPNoC under various packet sizes. The results show that on average our proposed network can reduce at least half of network energy consumption, while keeping lower transmission latency.
目前,能效已成为芯片网络(NoC)规模化设计中最关键的方面。与电子网络不同,光子片上网络为降低能耗提供了天然的解决方案。本文提出了一种具有中央控制器(CPNoC)的高能效光子片上网络。我们提出的片上网络采用混合架构,由光传输网络和电子控制网络组成。我们提出的网络最重要的特点是电子网络只使用一个中央控制器来处理和转发控制消息。因此,这些控制消息在到达目的节点时不会受到高跳数的影响。中央控制器持有一个光子开关元件(PSE)状态表并控制所有PSE的开关。当一个新的控制信息到达时,它根据信息所携带的信息迅速建立或破坏光链路。最后,我们评估和比较了不同分组大小下16 /64核电子NoC、光子网状NoC和CPNoC的能量效率和平均传输延迟。结果表明,在保持较低的传输延迟的同时,我们提出的网络平均可以减少至少一半的网络能耗。
{"title":"CPNoC: An Energy-Efficient Photonic Network-on-Chip","authors":"Junhui Wang, Gang Han, Baoliang Li, Jia Lu, Wenhua Dou","doi":"10.1109/WAINA.2013.34","DOIUrl":"https://doi.org/10.1109/WAINA.2013.34","url":null,"abstract":"Now energy efficiency is becoming the most critical design facet for the scaling of Network-on-Chip (NoC). Different with electronic network, photonic Network-on-Chip offers natural solutions to reduce energy consumption. In this paper, we propose an energy-efficient photonic Network-on-Chip with central controller (CPNoC). Our proposed on-chip network utilizes a hybrid architecture, comprised of an optical transmission network and an electronic control network. The most important feature of our proposed network is that electronic network uses just one central controller to process and forward control messages. Thus these control messages will not suffer from high hop count to reach destination node. Central controller holds a photonic switching element (PSE) state table and controls all PSEs' switch on/off. When a new control message arrives, it sets up or tears down an optical link quickly, according to the information carried by the message. Finally, we evaluate and compare the energy efficiency and average transmission latency for 16-/64-core electronic NoC, photonic mesh NoC and CPNoC under various packet sizes. The results show that on average our proposed network can reduce at least half of network energy consumption, while keeping lower transmission latency.","PeriodicalId":359251,"journal":{"name":"2013 27th International Conference on Advanced Information Networking and Applications Workshops","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132669368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Comparison of Three Interpolation Techniques in Comb-Type Pilot-Assisted Channel Coded OFDM System 梳式导频辅助信道编码OFDM系统中三种插值技术的比较
L. U. Khan, Z. Sabir, S. Mahmud, G. M. Khan
Doppler shifts and channel induced fading effects are more likely to induce inter carrier interference (ICI), which is the challenging research area in the orthogonal frequency division multiplexing (OFDM). This paper uses channel estimation for canceling the effect of ICI from the received signal. One dimensional frequency domain comb-type channel estimation is considered because of its low computational complexity and effective tracking ability of the fast fading channel. The channel at pilot subcarriers is estimated by using zero forcing (ZF) estimator. In this paper an improved and computationally efficient interpolation technique is proposed for the estimation of channel impulse response at the data subcarriers. Simulation results reveal that the proposed interpolation technique outperforms other one dimensional interpolation techniques. Errors induced by the channel results in degradation of the BER performance. Turbo codes have been used in addition to ZF estimator for further improving BER performance of the OFDM system. Log maximum a posteriori (Log-MAP) decoding algorithm is used for the component decoders in the iterative turbo decoder. Rayleigh fading channel in the presence of AWGN is used to evaluate the performance of the proposed OFDM system.
多普勒频移和信道诱导衰落效应更容易诱发载波间干扰,这是正交频分复用(OFDM)技术中具有挑战性的研究领域。本文采用信道估计来消除接收信号中ICI的影响。一维频域梳状信道估计具有较低的计算复杂度和对快衰落信道的有效跟踪能力。利用零强迫(ZF)估计器估计导频子载波的信道。本文提出了一种改进的、计算效率高的插值方法,用于估计数据子载波处的信道脉冲响应。仿真结果表明,该插值方法优于其他一维插值方法。由信道引起的误差导致误码率性能下降。为了进一步提高OFDM系统的误码率性能,除了采用ZF估计器外,还采用了Turbo码。迭代涡轮解码器中各分量解码器采用对数最大后验(Log- map)译码算法。采用有AWGN存在的瑞利衰落信道来评价OFDM系统的性能。
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引用次数: 10
Dynalets: A New Representation of Periodic Biological Signals and Spectral Data 动态元:周期生物信号和光谱数据的一种新表示
J. Demongeot, A. Hamie, A. Glaria, C. Taramasco
The biological information coming from electro-physiologic signal sensors like ECG or molecular signal devices like mass spectrometry has to be compressed for an efficient medical use by clinicians or to retain only the pertinent explanatory information about the mechanisms at the origin of the recorded signal for the researchers in life sciences. When the signal is periodic in time and/or space, classical compression processes like Fourier and wavelets transforms give good results concerning the compression rate, but bring in general no supplementary information about the interactions between elements of the living system producing the studied signal. Here, we define a new transform called dynalet based on Liénard differential equations susceptible to model the mechanism that is the source of the signal and we propose to apply this new technique to real signals like ECG, pulse activity and protein spectra in mass spectrometry.
来自电生理信号传感器(如ECG)或分子信号设备(如质谱)的生物信息必须被压缩,以便临床医生有效地进行医疗使用,或者为生命科学研究人员保留有关记录信号起源机制的相关解释信息。当信号在时间和/或空间上是周期性的,像傅里叶变换和小波变换这样的经典压缩过程在压缩率方面给出了很好的结果,但通常没有带来关于产生所研究信号的生命系统元素之间相互作用的补充信息。在这里,我们定义了一种新的变换,叫做dynalet,它基于linard微分方程,可以模拟信号来源的机制,我们建议将这种新技术应用于实际信号,如心电图,脉冲活动和质谱中的蛋白质谱。
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引用次数: 4
期刊
2013 27th International Conference on Advanced Information Networking and Applications Workshops
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