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2010 13th International Conference on Computer and Information Technology (ICCIT)最新文献

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On the design of quaternary comparators 四元比较器的设计
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723862
I. Jahangir, A. Das
Quaternary logic requires a dedicated comparator circuit besides the usual add/sub unit which may not be optimal due to several reasons. In this paper, we have thoroughly discussed various alternative expressions for equality operator which serves as the basis for quaternary comparator. Then we have derived the necessary equations for single qudit comparator and extended it to serial multi qudit comparator. We have also shown the equations and design of single stage parallel comparator where restriction of fan-in is sacrificed for constant speed. We have ended our discussion with the design of a logarithmic stage parallel comparator which can compute the comparator output within log2(n) time delay for n qudits.
第四元逻辑除了通常的加/子单元外,还需要一个专用的比较器电路,由于几个原因,这可能不是最佳的。本文深入讨论了作为四元比较器基础的相等算子的各种替代表达式。然后推导了单量程比较器的必要方程,并将其推广到串行多量程比较器。我们还展示了单级并联比较器的方程和设计,其中牺牲了风扇的限制,以获得恒定的速度。我们已经结束了我们的讨论,设计了一个对数级并行比较器,它可以在log2(n)的时间延迟内计算n个量值的比较器输出。
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引用次数: 12
Chaotic dynamics of supervised neural network 监督神经网络的混沌动力学
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723893
S. U. Ahmed, M. Shahjahan, K. Murase
It is important to study the neural network (NN) when it falls into chaos, because brain dynamics involve chaos. In this paper, the several chaotic behaviors of supervised neural networks using Hurst Exponent (H), fractal dimension (FD) and bifurcation diagram are studied. The update rule for NN trained with back-propagation (BP) algorithm absorbs the function of the form x(1-x) which is responsible for exhibiting chaos in the output of the NN at increased learning rate. The H is computed with the time series obtained from the output of NN. One can comment on the classification of the network from the values of Hs. The chaotic dynamics for two bit parity, cancer, and diabetes problems are examined. The result is validated with the help of bifurcation diagram. It is found that the values of H are repositioned marginally depending on the size of NN. The effect of the size of NN on chaos is also investigated.
当神经网络处于混沌状态时,对其进行研究是非常重要的,因为大脑动力学涉及到混沌。本文利用赫斯特指数(H)、分形维数(FD)和分岔图研究了监督神经网络的几种混沌行为。用BP算法训练的神经网络的更新规则吸收了x(1-x)形式的函数,该函数负责以更高的学习率在神经网络的输出中显示混沌。H由神经网络输出的时间序列计算。我们可以从Hs的值来评价网络的分类。混沌动力学的两位宇称,癌症,和糖尿病的问题进行了检查。利用分岔图对结果进行了验证。我们发现H的值会根据NN的大小被重新定位。研究了神经网络大小对混沌的影响。
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引用次数: 0
A novel method for the synthesis of odd base quantum full adder 合成奇基量子全加法器的新方法
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723859
Faisal Mohsin
For various reasons in recent years the interest in building quantum computers has increased gradually. To do the calculations in quantum computer we need quantum arithmetic logic unit (ALU). The building block of quantum ALU is quantum adder. In quantum computer multivalued logic is possible. In this paper a generalized circuit has been proposed to build odd base multivalued quantum full adder. A novel approach has been taken to minimize the total no. of gates. Muthukrishnan-Stroud gates and quantum shift gates have been combined to achieve the minimal circuit.
近年来,由于各种原因,人们对建造量子计算机的兴趣逐渐增加。在量子计算机中进行计算需要量子算术逻辑单元(ALU)。量子ALU的基本构件是量子加法器。在量子计算机中,多值逻辑是可能的。本文提出了一种构造奇基多值量子全加法器的广义电路。采用了一种新颖的方法来最小化总no。的大门。Muthukrishnan-Stroud门和量子位移门被组合在一起以实现最小电路。
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引用次数: 1
Quantum Evolutionary Algorithm based on Particle Swarm theory in multiobjective problems 多目标问题中基于粒子群理论的量子进化算法
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723823
Md. Kowsar Hossain, Md. Amjad Hossain, M. Hashem, Md. Mohsin Ali
Quantum Evolutionary Algorithm (QEA) is an optimization algorithm based on the concept of quantum computing and Particle Swarm Optimization (PSO) algorithm is a population based intelligent search technique. Both these techniques have good performance to solve optimization problems. PSEQEA combines the PSO with QEA to improve the performance of QEA and it can solve single objective optimization problem efficiently and effectively. In this paper, PSEQEA is studied to solve multi-objective Optimization (MO) problems. Some well-known non-trivial functions are used to observe the performance of PSEQEA to detect the Pareto optimal points and the shape of the Pareto front using both Fixed Weighted Aggregation method and Adaptive Weighted Aggregation method. Moreover, Vector Evaluated PSEQEA (VEPSEQEA) borrows concept from Schaffer's Vector Evaluated Genetic Algorithm (VEGA) that can also cope with MO problems. Simulation results show that PSEQEA and VEPSEQEA perform better than PSO and VEPSO to discover the Pareto frontier.
量子进化算法(QEA)是一种基于量子计算概念的优化算法,粒子群优化算法(PSO)是一种基于种群的智能搜索技术。这两种技术在解决优化问题上都有很好的性能。PSEQEA将粒子群算法与QEA算法相结合,提高了QEA算法的性能,能够高效地解决单目标优化问题。本文研究了求解多目标优化问题的PSEQEA算法。利用一些著名的非平凡函数,分别采用固定加权聚集法和自适应加权聚集法,观察了PSEQEA算法检测Pareto最优点和Pareto前沿形状的性能。此外,Vector evaluedpseqea (VEPSEQEA)借鉴了Schaffer's Vector evaluedgenetic Algorithm (VEGA)的概念,同样可以处理MO问题。仿真结果表明,与PSO和VEPSO相比,PSEQEA和VEPSEQEA在发现Pareto边界方面具有更好的性能。
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引用次数: 5
Development of mobile phone based surveillance system 基于手机的监控系统开发
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723909
Badrun Nahar, Md Liakot Ali
In today's world, ensuring security for important locations is a burning issue. Different surveillance methodologies such as alarm system, CCTV, PC based video system are used to ensure this security. But using all these systems, it is not possible for a person to monitor the security of his or her desired location when they are outside. Now-a-days anybody can communicate with anyone at anytime around the globe with the help of mobile phone technology. By keeping the technological facility of mobile phone in mind, a mobile phone based surveillance system has been described in this paper. This paper will give a solution for the security of corporate houses as well as corporate personnel. In this system there are server and client end. Server will store images being captured by the webcam of an important location. Then based on clients request sending from their mobile phone to the server, clients will be able to view the images from their mobile phone that is stored in the server. Clients are also able to move the webcam by sending control instruction from their mobile phone to view the images of their desired position. The developed system has been tested first using the GUI (emulator) designed by NetBeans IDE. It has also been tested using different mobile phones to see the images in real time and it provides the true sense of real mobility and security by accessing the desired location from the mobile phone anytime anywhere whenever wishes. This surveillance system can also be implemented for other handheld devices like PDA.
在当今世界,确保重要地点的安全是一个亟待解决的问题。不同的监控方法,如报警系统,闭路电视,基于PC的视频系统,以确保这种安全。但是,使用所有这些系统,当一个人在外面时,不可能监控他或她想要的位置的安全。如今,在移动电话技术的帮助下,任何人都可以在全球任何时间与任何人进行通信。本文考虑到手机的技术优势,设计了一种基于手机的监控系统。本文将为企业房屋安全以及企业人员安全提供一个解决方案。本系统分为服务器端和客户端。服务器将存储由重要位置的网络摄像头捕获的图像。然后,根据客户从移动电话发送到服务器的请求,客户可以查看存储在服务器中的移动电话上的图像。客户还可以通过手机发送控制指令来移动网络摄像头,以查看他们想要的位置的图像。所开发的系统首先使用NetBeans IDE设计的GUI(仿真器)进行了测试。它也被测试使用不同的手机实时看到的图像,它提供了真正意义上的真正的流动性和安全性,从手机访问所需的位置,随时随地,无论何时希望。该监控系统也可以用于其他手持设备,如PDA。
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引用次数: 10
Performance of sub-carrier mapping in single carrier FDMA systems under radio mobile channels 无线移动信道下单载波FDMA系统的子载波映射性能
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723850
M. Rana
Single carrier-frequency division multiple access (SC-FDMA) utilizes single carrier modulation at the transmitter and frequency domain equalization at the receiver. It has almost similar performance and essentially the same overall structure of an orthogonal frequency division multiple access (OFDMA) system with low peak to average power ratio (PAPR). Recently, the SC-FDMA has drawn great attention as an attractive alternative to OFDMA, in the uplink communications where lower PAPR greatly benefits the mobile terminal in terms of manufacturing cost as well as transmit power efficiency. Such power efficiency can provide considerable performance improvements in future wireless communication networks. This article outlines the basic principles of SC-FDMA systems with different types of sub-carrier mapping schemes. Simulation results demonstrate the performance of different sub-carrier mapping schemes under ideal and pedestrian channel condition.
单载波频分多址(SC-FDMA)在发送端使用单载波调制,在接收端使用频域均衡。它与低峰值平均功率比(PAPR)的正交频分多址(OFDMA)系统具有几乎相同的性能和基本相同的总体结构。近年来,SC-FDMA作为OFDMA的一种有吸引力的替代方案受到了广泛关注,在上行通信中,较低的PAPR大大有利于移动终端的制造成本和发射功率效率。这样的功率效率可以为未来的无线通信网络提供相当大的性能改进。本文概述了具有不同类型子载波映射方案的SC-FDMA系统的基本原理。仿真结果验证了不同子载波映射方案在理想信道和行人信道条件下的性能。
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引用次数: 5
SQL Tunnelling through HTTP SQL通过HTTP隧道
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723851
Thomas Kvamme, S. Ahmed
A novel SQL Tunnelling system to allow communication with an SQL database is developed by utilising the standard Internet protocol HTTP. The communication with the database is allowed by a client interacting with a Web Service running on a standard off-the-shelf HTTP Server. With this tunnelling system, access to a database can be provided without providing access to the database native communication port. This can be useful if a database application needs to be made available on insecure networks, such as Internet, or if firewalls between client and server does not accept anything other than the normal HTTP communications.
利用标准的Internet协议HTTP,开发了一种新的SQL隧道系统,允许与SQL数据库进行通信。与数据库的通信是通过客户机与运行在标准的现成HTTP服务器上的Web服务进行交互来实现的。使用这种隧道系统,可以在不提供对数据库本地通信端口的访问的情况下提供对数据库的访问。如果数据库应用程序需要在不安全的网络(如Internet)上可用,或者客户机和服务器之间的防火墙除了正常的HTTP通信之外不接受任何其他通信,那么这将非常有用。
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引用次数: 0
Lessons learned from real MANET experiments and simulation-based evaluation of UDP and TCP 从真实的MANET实验和基于仿真的UDP和TCP评估中获得的经验教训
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723910
J. Kamal, M. S. Hasan, A. Carrington, Hongnian Yu
Although more than a decade of research has been done but pure general-purpose MANET is still not available rather than few prototypes within laboratory due to both technical and socio-economic point of view. Lacking in appropriate guidelines for realistic user traces, mobility models, routing protocols and considering real-life challenges, it is difficult to reproduce any typical scenario in reality apart from simulation. In this paper, difficulties faced to regenerate real-life scenarios have been discussed to clearly identify the gaps in simulation and real-time experiments. Four laptops are used in an open field environment for different scenarios to evaluate a TCP based streaming video application using real OLSR implementation within a IEEE 802.11g wireless network. Corresponding simulations are performed in ns-2 based on the realistic setup parameters achieved from real experiments and finally a comprehensive analysis identifies the generic gaps between these two approaches to evaluate network protocols. Simulation results show better performance than the real-life results due to differ in external influences and protocol implementation although maintaining realistic simulation setups.
尽管已经进行了十多年的研究,但由于技术和社会经济的观点,纯通用的MANET仍然没有可用,而不是实验室中的几个原型。缺乏对真实用户轨迹、移动模型、路由协议的适当指导,并考虑到现实生活中的挑战,除了模拟之外,很难在现实中再现任何典型场景。本文讨论了再生现实场景所面临的困难,以清楚地识别模拟和实时实验中的差距。在不同场景的开放现场环境中使用四台笔记本电脑,在IEEE 802.11g无线网络中使用真正的OLSR实现来评估基于TCP的流媒体视频应用程序。基于从实际实验中获得的实际设置参数,在ns-2中进行了相应的模拟,最后进行了全面的分析,确定了这两种方法在评估网络协议方面的一般差距。在保持真实仿真设置的情况下,由于外部影响和协议实现的差异,仿真结果显示出比实际结果更好的性能。
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引用次数: 5
Evolutionary multi-objective clustering with adaptive local search 基于自适应局部搜索的进化多目标聚类
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723829
Kazi Shah Nawaz Ripon, K. Glette, M. Høvin, J. Tørresen
In many real-world applications, the accurate number of clusters in the data set may be unknown in advance. In addition, clustering criteria are usually high dimensional, nonlinear and multi-model functions and most existing clustering algorithms are only able to achieve a clustering solution that locally optimizes them. Therefore, a single clustering criterion sometimes fails to identify all clusters in a data set successfully. This paper presents a novel multi-objective evolutionary clustering algorithm based on adaptive local search that mitigates the above disadvantages of existing clustering algorithms. Unlike the conventional local search, the proposed adaptive local search scheme automatically determines whether local search is used in an evolutionary cycle or not. Experimental results on several artificial and real data sets demonstrate that the proposed algorithm can identify the accurate number of clusters in the data sets automatically and simultaneously achieves a high quality clustering solution. The superiority of the proposed algorithm over some single-objective clustering algorithms and existing multi-objective evolutionary clustering algorithms is also confirmed by the experimental results.
在许多实际应用程序中,数据集中集群的准确数量可能是事先未知的。此外,聚类标准通常是高维、非线性和多模型的函数,现有的大多数聚类算法只能得到局部优化的聚类解。因此,单个聚类标准有时不能成功地识别数据集中的所有聚类。本文提出了一种基于自适应局部搜索的多目标进化聚类算法,克服了现有聚类算法的上述缺点。与传统的局部搜索不同,本文提出的自适应局部搜索方案能够自动判断进化周期中是否使用局部搜索。在多个人工数据集和真实数据集上的实验结果表明,该算法能够自动准确识别数据集中的聚类数量,同时获得高质量的聚类解。实验结果也证实了该算法相对于一些单目标聚类算法和现有多目标进化聚类算法的优越性。
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引用次数: 0
A stable clustering method for efficient geographic routing in Mobile Ad-Hoc Networks 移动Ad-Hoc网络中高效地理路由的稳定聚类方法
Pub Date : 2010-12-01 DOI: 10.1109/ICCITECHN.2010.5723915
Md.Mosaddek Khan, M. Mamun-Or-Rashid
The Routing Approaches in Mobile Ad-hoc Network have almost entered the saturated arena. But still there are available options of perfection in this meadow. The task of improving the clustering technique is one of the fields which is under rated as a research topic for further improvement of routing. Clustering based MANET routing protocols, which are popular in terms of efficiency, simplicity and usability mostly use circular based clustering techniques. And the election of cluster head is done through the use conventional approaches. This particular paper is mainly focused to launch a new-fangled clustering technique through which it is possible to improve the routing performance of existing protocols. Another important aspect of this paper is to provide a cluster head selection algorithm which can effectively maintain the clusters and provides more stability. Proposed clustering idea is useful for geographically related nodes effectively in different turf of routing. To maintain the clusters and their stability, it provides a new idea to select cluster head within the cluster, also the election of secondary cluster head for avoiding further election immediately after the unavailability of primary cluster head. This idea is evaluated in network simulator and it outperforms the existing clustering techniques.
移动自组网中的路由方法几乎已经进入饱和状态。但在这片草地上,仍然有一些完美的选择。改进聚类技术的任务是路由进一步改进的研究课题之一。基于聚类的MANET路由协议在效率、简单性和可用性方面都很流行,它们大多使用基于循环的聚类技术。并采用常规方法进行簇头的选择。本文主要介绍了一种新颖的聚类技术,通过这种技术可以提高现有协议的路由性能。本文的另一个重要方面是提供了一种簇头选择算法,该算法可以有效地维护簇并提供更多的稳定性。所提出的聚类思想对地理上相关的节点在不同的路由范围内有效地起作用。为了维护集群及其稳定性,提出了在集群内选择簇头的新思路,同时提出了选择副簇头的新思路,以避免在主簇头不可用后立即进行再次选举。在网络模拟器上对该方法进行了评估,结果表明该方法优于现有的聚类技术。
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引用次数: 1
期刊
2010 13th International Conference on Computer and Information Technology (ICCIT)
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