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2010 International Symposium on Information Technology, ITSim'10

作者： Mansor, Zulkefli Bin Kasirun, Zarinah Mohd Arshad, Noor Habibah Hj Yahya, Saadiah Department of Computer Science Faculty of Industrial Information Technology Universiti Industri Selangor Selangor Malaysia Department of Software Engineering Faculty of Computer Science and Information Technology Universiti Malaya Kuala Lumpur Malaysia System Science Studies Faculty of Computer Science and Mathematics Universiti Teknologi Mara Selangor Malaysia Computer Technology and Networking Studies Faculty of Computer Science and Mathematics Universiti Teknologi Mara Selangor Malaysia

ISBN: (纸本)9781424467181

The accuracy and efficiency of cost estimation methodology for web-based application is very important for software development as it would be able to assist the management team to estimate the cost. Furthermore, it will ensure that the development of cost is within the planned budget and provides a fundamental motivation towards the development of web-based application proíéct. The literature review reveals that COCOMO II provides accurate result because more variables are considered including reuse parameter. The parameter is one of the essential variables in estimating the cost in web-based application development. This research investigates the feasibility to combine and implement COCOMO II and el pert I Udgment technil be in a tool called WebCost. In estimating a cost, the tool considers all variables in COCOMO II and rei bires el pert l udgment to key-in the input of the variables such as pro I éct size, pro I éct type, cost ad i Ustment factor and cost driven factor. I leveloped in JA I A, WebCost is proven able to estimate cost and generate its estimation result. The usability evaluation conducted had shown that WebCost is usable when compared with other tools I lit has its own advantages. WebCost is evidence suitable for everyone especially the prolect managers, software practitioners or software engineering student in handling the cost estimation tasks. © 2010 IEEE.

关键词： Software design

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A taxonomy of Botnet detection techniques

A taxonomy of Botnet detection techniques

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2010 3rd IEEE International Conference on computer science and Information Technology, ICCSIT 2010

作者： Zeidanloo, Hossein Rouhani Zadeh, Mohammad Jorjor Shooshtari Amoli, Payam Vahdani Safari, M. Zamani, Mazdak Faculty of Computer Science and Information System University of Technology Malaysia 54100 Kuala Lumpur Malaysia Industrial Engineering Department AmirKabir University of Technology Tehran Iran

ISBN: (纸本)9781424455386

Among the diverse forms of malware, Botnet is the most widespread and serious threat which occurs commonly in today's cyber attacks. Botnets are collections of compromised computers which are remotely controlled by its originator (BotMaster) under a common Commond-and-Control (C&C) infrastructure. They provide a distributed platform for several illegal activities such as launching distributed denial of service (DDOS) attacks against critical targets, malware distribution, phishing, and click fraud. Most of the existing Botnet detection approaches concentrate only on particular Botnet command and control (C&C) protocols (e.g., IRC,HTTP) and structures (e.g., centralized), and can become ineffective as Botnets change their structure and C&C techniques. The detection of Botnet has been a major research topic in recent years. Different techniques and approaches have been proposed for detection and tracking of Botnet. This survey classifies Botnet detection techniques into two approaches. One approach is based on setting up honeynets and another approach is based on Intrusion Detection system( IDS) which has been categorized into signature-based and anomaly-based detection techniques. © 2010 IEEE.

关键词： Botnet

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Assignments acceptance strategy in a Modified PSO Algorithm to elevate local optima in solving class scheduling problems

Assignments acceptance strategy in a Modified PSO Algorithm ...

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2010 6th International Colloquium on Signal Processing and Its Applications, CSPA 2010

作者： Aziz, Mohd Azri Abdul Taib, Mohd Nasir Hussin, Naimah Mohd Department of System Engineering Faculty of Electrical Engineering Universiti Teknologi MARA 40450 Shah Alam Selangor Malaysia Computer Science Department Universiti Teknologi MARA Perlis Arau Campus 02600 Arau Perlis Malaysia

ISBN: (纸本)9781424471225

Local optima in optimization problems describes a state where no small modification of the current best solution will produce a solution that is better. This situation will make the optimization algorithm unable to find a way to global optimum and finally the quality of the generated solution is not as expected. This paper proposes an assignment acceptance strategy in a Modified PSO Algorithm to elevate local optima in solving class scheduling problems. The assignments which reduce the value of objective function will be totally accepted and the assignment which increases or maintains the value of objective function will be accepted based on acceptance probability. Five combinations of acceptance probabilities for both types of assignments were tested in order to see their effect in helping particles moving out from local optima and also their effect towards the final penalty of the solution. The performance of the proposed technique was measured based on percentage penalty reduction (%PR). Five sets of data from International Timetabling Competition were used in the experiment. The experimental results shows that the acceptance probability of 1 for neutral assignment and 0 for negative assignments managed to produce the highest percentage of penalty reduction. This combination of acceptance probability was able to elevate the particle stuck at the local optima which is one of the unwanted situations in solving optimization problems. © 2010 IEEE.

关键词： Probability

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A rewinding approach to motion planning for acrobot based on virtual friction

A rewinding approach to motion planning for acrobot based on...

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IEEE-ICIT 2010 International Conference on Industrial Technology, ICIT 2010

作者： She, Jin-Hua Lai, Xu-Zhi Xin, Xin Guo, Li-Li School of Computer Science Tokyo University of Technology 1404-1 Katakura Hachioji Tokyo 192-0982 Japan School of Information Science and Engineering Central South University Changsha Hunan 410083 China Faculty of Computer Science and System Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan Information and Communication Engineering College Harbin Engineering University Harbin 150001 China

ISBN: (纸本)9781424456970

Based on the concept of kinematical controllability, we can decouple the trajectory planning of an acrobot into two steps: finding a path in a configuration space and time-scaling it. In this paper, we apply this concept and plan the swing-up motion of an acrobot based on its falling-down motion. First, the initial state of the acrobot is set to the unstable upright equilibrium position, and the movement from this state to the stable downward equilibrium position is produced by introducing an artificial damping torque. A method to obtaining an optimal damping torque is presented. Then, the reference trajectory for the swing-up motion is taken to be the reverse of the falling-down motion. The validity of this method is demonstrated through simulations. ©2010 IEEE.

关键词： Motion planning

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A LOCAL DYNAMIC CLUSTER SELF-ORGANIZATION ALGORITHM IN WIRELESS SENSOR NETWORKS FOR RAINFALL MONITORING

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Journal of Electronics(China) 2010年第2期27卷 279-288页

作者： Wang Huibin Xu Lizhong Xiao Xianjian Fan Tanghuai Xu Feng College of Computer ＆ Information Hohai University Nanjing 2100P8 China Institute of Communication ＆ Info System Engineering Hohai University Nanjing 210098 China Department of Computer Science ＆ Technology Nanchang Institute of Technology Nanchang 330099 China

Wireless Sensor Networks for Rainfall Monitoring (RM-WSNs) is a sensor network for the large-scale regional and moving rainfall monitoring,which could be controlled deployment. Delivery delay and cross-cluster calculation leads to information inaccuracy by the existing dynamic collabo-rative self-organization algorithm in WSNs. In this letter,a Local Dynamic Cluster Self-organization algorithm (LDCS) is proposed for the large-scale regional and moving target monitoring in RM-WSNs. The algorithm utilizes the resource-rich node in WSNs as the cluster head,which processes target information obtained by sensor nodes in cluster. The cluster head shifts with the target moving in chance and re-groups a new cluster. The target information acquisition is limited in the dynamic cluster,which can reduce information across-clusters transfer delay and improve the real-time of information acquisition. The simulation results show that,LDCS can not only relieve the problem of "too frequent leader switches" in IDSQ,also make full use of the history monitoring information of target and con-tinuous monitoring of sensor nodes that failed in DCS.

关键词： Wireless Sensor Networks (WSNs) Rainfall Monitoring (RM) Self-organization Local dynamic cluster

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A static environment-based path planning method by using genetic algorithm

A static environment-based path planning method by using gen...

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1st International Conference on Computing Control and Industrial engineering, CCIE 2010

作者： Yao, Zhigang Ma, Lianyang Department of Computer Science Faculty of Information and Engineering China University of Geosciences Wuhan China Institute of Image Communication and Information Processing Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9780769540269

This paper proposed a genetic algorithm-based method of path planning for mobile robot in a static environment. The paper uses a simple fitness function as the evaluation standard for an individual or a path. This is able to reduce the computation consumption, but it still cannot avoid of customizing genetic operators. In most cases, thus, the optimal solution could be found out in the lower evolution generations. The simulation study shows that this method is suitable for mobile robot path planning. © 2010 IEEE.

关键词： Motion planning

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Efficient singlecast/multicast method for active optical access network using PLZT high-speed optical switches

Efficient singlecast/multicast method for active optical acc...

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International Conference on High Performance Switching and Routing

作者： Ashizawa, Kunitaka Tokuhashi, Kazumasa Ishii, Daisuke Okamoto, Satoru Yamanaka, Naoaki Oki, Eiji Dept. of Information and Computer Science Faculty of Science and Technology Keio University Yokohama 223-8522 Japan Department of Information and Communication Engineering University of Electro-Communications Tokyo 182-8585 Japan

ISBN: (纸本)9781424469710

We propose a new efficient singlecast/multicast method for active optical access network using PLZT 10 nsec high-speed optical switches. The Active Optical Network, called ActiON, has been proposed using slot type switched optical network. Compared with Passive Optical Network (PON), ActiON can quadruplicate the number of subscribers (128 users) per OLT and double the maximum transmission distance (40 km) between OLT and ONUs. However, ActiON uses slot based switching method, so it is difficult to realize the multicast delivery. In this paper, we propose the efficient singlecast/multicast method for ActiON by using PLZT optical switch elements which are controlled as "distribution mode" like an optical splitter by applying mid-control voltage. In addition, a new efficient multicast slot allocation method is proposed and formulated as a linear programming problem. This formula develops the maximum number of users which is able to be connected by multicast and the minimum number of slots is used for multicast users. © 2010 IEEE.

关键词： Multicasting

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Modern development of low cost RT industrial process control based on matlab-simulink and PAC

Modern development of low cost RT industrial process control...

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作者： Tutsch, Michal Konarik, Petr Department of Measurement and Control Faculty of Electrical Engineering and Computer Science VSB - Teclmical University of Ostrava Ostrava Czech Republic Department of Control System and Instrumentation Faculty of Mechanical Engineering VSB - Teclmical University of Ostrava Ostrava Czech Republic

ISBN: (纸本)9781424473359

The paper presents modern advanced development methods of control systems that minimizes the cost of development of applications which are widely applicable in industrial control of whole range of processes. Unlike the classical way of design and testing control algorithms which are based on expensive RT measurement cards or dSpace, this solution is based on industrial controllers WinPLC/WinPAC. This enables so called rapid-prototyping of control algorithms directly from Matlab-Simulink into target platform. It was used muItiplatform control system REX as a bridge between Matlab and the target platform. The paper describes whole design of control algorithms and control schemes, simulation of prepared schemes, uploading control schemes into target platform of WinPLC. Also possibilities of remote data transfer and data storage are mentioned. The real measurement on hydraulic industrial system proved its limits that were also explained in this paper.

关键词： Simulink

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Online information sharing issues in website personalization

Online information sharing issues in website personalization

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1st International Conference on User science and engineering 2010, iUSEr 2010

作者： Razali, Mohd Norhisham Fun, Tan Soo Razak, Fariza Hanis Abdul Hanapi, Rozita Software Engineering School of Engineering and Information Technology University Malaysia Sabah Malaysia Network and System Management School of Engineering and Information Technology University Malaysia Sabah Malaysia Department of System Science Faculty of Computer and Mathematical Sciences University Teknologi MARA Shah Alam Selangor Malaysia Office System Management Faculty of Office Management and Technology Universiti Teknologi MARA Puncak Alam Selangor Malaysia

ISBN: (纸本)9781424490493

Website Personalization is one of strategic technique in delivering services in online applications. A part of process for building personalization applications is to collect particular information from the user which involves information sharing. However, the awareness about privacy concerns and security threats have caused to non-sharing behavior among the Internet Users. This situation have caused website personalization cannot be built to serve its purposes. This paper aims to investigate the people's behavior and to study the propensity of information sharing attitude in two different environments and cultures. The two environments are between real-life and online while the two cultures are between Malaysian and non-Malaysian. Since this is an exploratory study, interview with five (5) persons have been conducted. The qualitative technique that chooses was recommended for any exploratory study. The findings of this study explained the understanding of behaviors and the factors of Information Sharing. The factors are the cultural factors, the platform of sharing and the behavior of information sharing in web personalization. The sharing behavior in two environments and cultures were also compared. The data collected from the interviews have generalizing the speculations and issues in information sharing which have been discussed at the end section of this paper. ©2010 IEEE.

关键词： Websites

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Enhanced automated Intrusion Prevention in network security

Enhanced automated Intrusion Prevention in network security

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2010 2nd International Conference on computer engineering and Technology, ICCET 2010

作者： He, Xiao Dong Ling, Teck Chaw Department of Data Communication and Engineering Guangzhou Civil Aviation College Guangzhou City Guangdong Province China Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Malaysia

ISBN: (纸本)9781424463503

An automated Intrusion Prevention Mechanism (AIPM) which comprises the functionalities of IDS, IPS, and auto configuring network devices is proposed to enhance network security. AIPM is a mechanism that includes automated intrusion prevention function and automated analysis of intrusion messages function. In addition, the ability of automatically detecting and analyzing network traffic allows AIPM to detect malicious attacks in almost real time. Likewise, the ability of automatically analyzing intrusion messages and network configuration enable AIPM to build a topological view and locate the source of a malicious attack. Results from the case studies show that AIPM imposes lower overhead than conventional method, which queries all pre-defined routers to block every interface irrespective of where the attack is launched. In summary, AIPM which incorporates the functionalities of IDS/IPS offers network protection against potential malicious acts without incurring additional overheads as compare to the conventional method. © 2010 IEEE.

关键词： Network security

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