TWO TECHNIQUES FOR FAST COMPUTATION OF CONSTRAINED SHORTEST PATH

Abstract: Computing constrained shortest paths is fundamental to some important network functions such as QoS routing, MPLS path selection, ATM circuit routing, and traffic engineering. The problem is to find the cheapest path that satisfies certain constraints. In particular, finding the cheapest delay-constrained path is critical for real-time data flows such as voice/video calls. Because it is NP-complete, much research has been designing heuristic algorithms that solve the ....etc

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ABSTRACT
Efficient key distribution is an important problem for secure group communications. The communication and storage complexity of multicast key distribution problem has been studied extensively. In this paper, we propose a new multicast key distribution scheme whose complexity is significantly reduced. Instead of using conventional encryption algorithms, the scheme employs MDS codes, a class of error control codes, to distribute multicast key dynamically. This scheme drastically reduces computation load of each group member comp ....etc

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Two Techniques for Fast Computation of Constrained Shortest Paths

abstract:
Computing constrained shortest paths is fundamental to some important network functions such as QoS routing, MPLS path selection, ATM circuit routing, and traffic engineering. The problem is to find the cheapest path that satisfies certain constraints. In particular, finding the cheapest delay-constrained path is critical for real-time data flows such as voice/video calls. Because it is NP-complete, much research has been designing heuristic algorithms tha ....etc

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This article is presented by: Bin Cui, Senior Member, IEEE, Lijiang Chen, Student Member, IEEE, Linhao Xu,
Hua Lu, Member, IEEE, Guojie Song, and Quanqing Xu



ABSTRACT


PEER-TO-PEER (P2P) computing systems have been thought of as a powerful paradigm for data sharing, and peerbased data management has attracted increasing interest from the database and information retrieval communities recently. Due to its desirab ....etc

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Two Techniques For Fast Computation of Constrained Shortest Paths
A major obstacle against implementing distributed multimedia applications such as web broadcasting, video teleconferencing and remote diagnosis, is the difficulty of ensuring quality of service (QoS) over the Internet. A fundamental problem that is present in many important network functions such as QoS routing, MPLS path selection and traffic engineering is to find the constrained shortest path that satisfies a set of constraints. For interactive real time traffic, t ....etc

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Numerical simulation of rotor stator interaction is crucial for turbo machinery improvement since it allows the optimization of blade path design In addition the numerical simulation of rotor stator interaction makes it possible to predict the location and variation of hot spots on blades which is extremely useful in the turbine thermal design However simulation of rotor stator interaction is notorious for being computationally expensive To reduce the turnaround time and cost MFLOP a parallel code based on the message passing interface l ....etc

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Introduction
The seminar aims at introducing various other forms of computation methods. Concepts of quantum computing, DNA computing have been introduced and discussed, Particular algorithms (like the Shor's algorithm) have been discussed. Solution of Traveling alesman problem using DNA computing has also been discussed. In the seminar aims opening windows to topics that may become tomorrow's mainstay in computer science. Richard Feynman thought up the idea of a 'quantum computer', a computer that uses the effects of quantum mechanics to ....etc

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What is ToC?
What can or cannot be computed efficiently with given resources

Can it be computed?- Computability Theory

Can it be computed quickly? – Complexity Theory

Computability Theory

Problems
Solvable
Not solvable
Complexity Theory

Computationally Hard Problems

Computationally Easy Problems
Defining ToC
Fundamental ideas & Models on Computing
The branch of computer science and mathematics that deals with how efficiently problems can be solved on a model of computation, ....etc

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ABSTRACT

In this paper a generalized algorithm has been developed to find the shortest path in a transmission line network. The selected network or graph for the proposed algorithm has the ability to traverse a network or graph with any complex structures, with any number of nodes and with any number of paths this algorithm has been developed by considering the source node as the starting node and designation node as the end node.

Dijikstrasâ„¢s algorithm is used to find the closest node from the source node. The proposed software i ....etc

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I need a java code and report about dynamic scheduling using grid computing, about how jobs are scheduled and assigned to the system for execution in grid environment..
shouibmohd ....etc

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