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European Intelligence and Security Informatics Conference (EISIC)

作者： P.K. Agrawal B.B. Gupta Satbir Jain Department of computer Engineering Netaji Subhas Institute of Technology Delhi University New Delhi India Department of Computer Science Graphic Era University Dehradun India

In recent time, Internet or network services has gain popularity due to rapid growth in information and telecommunication technologies. Internet or network services become the mean for finance management, education, and global information service center for news, advertisements and many others. Denial of service attack and most particularly the distributed denial of service attack (DDoS) is most common and harmful threat to the Internet or network services. In order to design and develop reliable and secure network services, rapid detection and quick response to these attacks are major concern. In practice, there is no scheme that completely detects or prevents the DDoS attack. Predicting number of zombies in a DDoS attack is helpful to suppress the effect of DDoS attack by filtering and rate limiting the most suspicious attack sources or improve DDoS response system. In this paper, we present machine learning approach based on support vector machine for regression to predict the number of zombies in a DDoS attack. MATLAB implementation of support vector machine for regression and datasets generated using NS-2 network simulators running on Linux platform are used for training and testing. SVM for regression with various kernel function and other parameters are compared for their prediction performance using mean square error (MSE). Results show SVM based scheme have promising prediction performance for small dataset.

关键词： Support vector machines computer crime Kernel Polynomials Testing Training Training data

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An adaptive server side software authentication framework based on user's activity pattern

An adaptive server side software authentication framework ba...

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2nd International Conference on Emerging Applications of Information technology, EAIT 2011

作者： Chakraborty, Ayan Munshi, Shiladitya Kundu, Anirban Department of Computer Science Engineering Techno India College of Technology West Bengal 700156 India Department of CSE Meghnad Saha Institute of Technology West Bengal 700107 India Department of Information Technology Netaji Shubhash Engineering College West Bengal 700108 India

ISBN: (纸本)9780769543291

The current paper presents an activity pattern based session specific server side software authentication framework which exploits the fact that software usage pattern of each user has a unique signature. This uniqueness in behavior or activity pattern of a user is described to be a potentially better candidate for software authentication. The identification of signature usage pattern has been developed with adaptive approach. Based on this adaptive signature pattern, the authentication decision has been taken through a statistical computational model. The risk factor of an activity pattern based software authentication has been mitigated by an approach reported as activity transfer. © 2011 IEEE.

关键词： Adaptive algorithms

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Comparative analysis of various control techniques for inverted pendulum

Comparative analysis of various control techniques for inver...

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India International Conference on Power Electronics (IICPE)

作者： Anil Kumar Yadav Prerna Gaur A. P. Mittal Masood Anzar Div of ICE Netaji Subhas Institute of Technology New Delhi India Electronics Department Meerut Institute of Engineering and Technology India

In this paper conventional proportional-integral-derivative (PID) controller and different type of fuzzy logic controllers are used for controlling the inverted pendulum. The fuzzy logic controller is designed in various forms in the Matlab-Simulink environment with Mamdani type fuzzy inference system. The Inverted Pendulum system (also called “cart-pole system”) is a classic example of a nonlinear and unstable control system. By controlling the force applied to the cart in the horizontal direction, the inverted pendulum can be kept in various unstable equilibrium positions. Fuzzy control in association with PID control is found better amongst the fuzzy PD and fuzzy PD+I control.

关键词： PD control Fuzzy logic Performance analysis Mathematical model Process control Electronic mail

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Assessment of quality of data warehouse multidimensional model

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International Journal of Information Quality 2011年第4期2卷 344-358页

作者： Gosain, Anjana Sabharwal, Sangeeta Nagpal, Sushama University School of Information Technology GGSIPU New Delhi-110006 India Computer Engineering Division Netaji Subhas Institute of Technology Dwarka New Delhi-110078 India

Data warehouses are large repositories designed to enable the knowledge workers to take better and faster decisions. Due to its significance in strategic decisions, there is a need to assure data warehouse quality. One of the factors affecting the data warehouse quality is multidimensional model quality. Although there are some useful guidelines for designing good multidimensional data models, but objective indicators, i.e., metrics are needed to help designers to develop quality multidimensional models. Few researchers have proposed quality metrics for multidimensional models for data warehouse. These metrics need to be theoretically as well as empirically validated in order to prove their practical utility. In this paper, empirical validation using controlled experiment is carried out. We not only evaluate the effect of individual metric but also evaluate the effect of various combinations of metrics on data warehouse model quality specifically understandability, in order to best explain the variance of dependent variable due to independent variables. The results show that these metrics may be used as objective indicators for understandability. Finally, accuracy of our model in predicting the multidimensional model quality is also evaluated. © 2011 Inderscience Enterprises Ltd.

关键词： Data warehouses

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Design optimization using Genetic Algorithm and Cuckoo Search

Design optimization using Genetic Algorithm and Cuckoo Searc...

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IEEE International Conference on Electro-Information technology

作者： Anil Kumar Shampa Chakarverty Faculty of Technology Delhi University New Delhi India Division of Computer Engineering Netaji Subhas Institute of Technology New Delhi India

Genetic algorithm (GA) is widely used for embedded system design optimization. GA needs repeated evaluation of fitness function, but for complex embedded systems fitness function evaluation is costly as it includes multiple objectives. A recently proposed Cuckoo Search (CS) method does not require repeated evaluation of fitness function and can provide a set of optimal solutions within a reasonable time. This paper compares the application of GA and CS algorithm to the problem of design space exploration and discusses their empirical comparison.

关键词： Genetic algorithms Design optimization Algorithm design and analysis Hardware Embedded systems

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Resource requirement prioritized grid scheduling model

Resource requirement prioritized grid scheduling model

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International Conference on Emerging Trends in Networks and computer Communications (ETNCC)

作者： Manjot Bhatia M. S. Bhatia Department of Information Technology Jagan Institute of Management Studies New Delhi India Department of Computer science Netaji Subhas Institute of Technology New Delhi India

Grid computing is a high performance computing environment to solve larger scale computational demands. Grid computing contains resource management, task scheduling, security problems, information management and so on. Task scheduling in an important aspect of distributed computing. As grid computing is a form of distributed computing with heterogeneous resources working in a shared environment with no central control. The main aim of Grid scheduling is to increase the system throughput and to satisfy the job requirements from the available resources. This work proposes a resource requirement (R2) prioritized task-scheduling algorithm for grid computing. This algorithm is based on prioritizing the resource requirement of the jobs which schedules the jobs taking into account the memory requirement of the jobs. It is named as the scheduling algorithm. It is compared with one of the widely used grid scheduling algorithm MinMin and has been tested in simulated grid environment. The experimental results showed a significant improvement of in terms of a makespan and system utilization.

关键词： Scheduling algorithms Scheduling Grid computing Memory management Throughput

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Optimizing Energy through Parabola Based Routing in Underwater Sensor Networks

Optimizing Energy through Parabola Based Routing in Underwat...

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2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

作者： Sanjay K. Dhurandher Mohammad S. Obaidat Siddharth Goel Abhishek Gupta CAITFS Division of Information Technology Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of Computer Science & Software Engineering Monmouth University NJ USA

This paper looks into the problems faced by Underwater Sensor Networks (UWSNs), with regard to energy optimization and efficient data delivery. A new algorithm is proposed which uses the properties of a "Parabola" in order to transmit data packets from source to destination. The scheme is called the "Parabola-based Routing"(PBR) algorithm. The algorithm is adaptive, and transmits packets in hop-by-hop fashion. Each node in the scenario is aware of its location in the form of its Cartesian coordinates. These coordinates help the nodes in the formation of the parabola for packet sending, as well as in knowing the location of other nodes. The best suited node is selected every time so as to maintain low probability of data transmission failure and optimum energy consumption thereby, using greedy approach every time in selecting the node for packet transmission. In order, to maintain the packet delivery ratio, a hop-by-hop "acknowledgement process" has also been devised. We have validated the efficiency of our algorithm through simulation analysis. The simulation results indicate a better performance of PBR over DSR in both mobile and static scenarios.

关键词： Peer to peer computing Routing Relays Algorithm design and analysis Mobile communication Routing protocols Monitoring

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On comparing the performance of Genetic Algorithm optimized PI and fractional order PI controller for power quality enhancement

On comparing the performance of Genetic Algorithm optimized ...

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International Conference on Power Systems (ICPS)

作者： S. Srivastava Astha Manaktala Kamayani Sadhwani M. Gupta Department of Instrumentation & Control Netaji Subhas Institute of Technology New Delhi India Department of Electrical & Electronics Engineering Maharaja Agrasen Institute of Technology New Delhi India

This paper deals with the application of a optimization technique inspired by natural evolution, namely Genetic Algorithm (GA) for the design of Fractional order Proportional and Integral (FOPI) based DSTATCOM (Distributed Static Compensator) and ELC (Electronic Load Controller). The GA technique helps search efficiently the optimal parameters of the FOPI controller. Conventional controllers use integral order control which is less robust as compared to fractional order control. This paper is based on a novel application of fractional order controller optimized by genetic algorithm for power quality improvement using DSTATCOM and ELC in a power system. With the help of modelling carried out in a MATLAB based environment and a set of simulation results, the superiority of the designed FOPI over PI (Proportional - Integral) based DSTATCOM and ELC controllers used in power distribution system is affirmed and a comparative study in terms of overshoots and undershoots is presented.

关键词： Genetic algorithms Voltage control Artificial neural networks Load management Optimization Power factor correction Frequency control

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Synthesis of New Single CFOA-Based VCOs Incorporating the Voltage Summing Property of Analog Multipliers

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International Scholarly Research Notices 2012年第1期2012卷

作者： S. S. Gupta D. R. Bhaskar R. Senani Department of Industrial Policy and Promotion Ministry of Commerce and Industry Government of India Udyog Bhawan New Delhi 110011 India Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi 110025 Indiajmi.nic.in Division of Electronics and Communication Engineering Netaji Subhas Institute of Technology Sector 3 Dwarka New Delhi 110078 Indiansit.ac.in

Recently, current feedback operational amplifier (CFOA) and analog multiplier-(AM-) based-voltage controlled oscillators (VCOs) have been published in the literature which require 2 CFOAs and 2 AMs for linear tuning law between control voltage and frequency of oscillation. In this paper, a family of eight new voltage-controlled oscillators (VCOs), with linear tuning laws, employing only a single CFOA in conjunction with two analog multipliers (AMs), has been derived through a systematic state-variable methodology. This has been made possible by exploiting the voltage summing property of the multiplier chosen which has never been done in the literature earlier. The workability of the presented VCOs has been verified by experimental results based on AD844 type CFOAs and AD534 type AMs, and the advantages of new circuits over the previously known CFOA-AM-based VCOs have been highlighted.

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AI based controller for three phase three level, soft switched, phase shift PWM dc to dc converter for high power application

AI based controller for three phase three level, soft switch...

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India International Conference on Power Electronics (IICPE)

作者： Himanshu Santosi Prerna Gaur Rahul Virmani A. P. Mittal Bhim Singh Divison of Instrumentation and Control Engineering Netaji Subhas Institute of Technology University of Delhi New Delhi India Department of Electrical Engineering Indian Institute of Technology Delhi New Delhi India

An artificial intelligence controller for three phase three level soft switched, phase shifted PWM(phase shift modulation) dc to dc converter is proposed for high voltage and high power applications. In which, it is analyzed that four switches in a leg where outer switch behaves as a zero voltage switching and inner switch behaves as a zero current switching. The performance is analyzed by simulation in MATLAB/SIMULINK.

关键词： Voltage control DC-DC power converters Mathematical model Switches Artificial neural networks Topology

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