this paper mainly propose a service of network security defense provide by the network service provider, and the service system is built on the original ISP network structure, the security decisions center build on th...
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the paper is concerned withparallel global optimization techniques that can be applied to solve complex optimization problems, and are widely used in applied science and in engineering. We describe an integrated soft...
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ISBN:
(纸本)9783642281501
the paper is concerned withparallel global optimization techniques that can be applied to solve complex optimization problems, and are widely used in applied science and in engineering. We describe an integrated software platform EPOCS (Environment for parallel Optimization of Complex Systems) that provides the framework and tools which allow to solve complex optimization problems on parallel and multi-core computers. the composition, design and usage of EPOCS is discussed. Next, we evaluate the performance of methods implemented in the EPOCS library based on numerical results for a commonly used set of functions from the literature. the case study - calculating the optimal prices of products that are sold in the market is presented to illustrate the application of our tool to a given real-life problem.
Some typical memory access patterns are provided and programmed in C, which can be used as benchmark to characterize the various techniques and algorithms aim to improve the performance of NUMA memory access. these ac...
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the proceedings contain 56 papers. the topics discussed include: should I stay or should I go? maximizing lifetime with relays;network lifetime maximization in delay-tolerant sensor networks with a mobile sink;achievi...
ISBN:
(纸本)9780769547077
the proceedings contain 56 papers. the topics discussed include: should I stay or should I go? maximizing lifetime with relays;network lifetime maximization in delay-tolerant sensor networks with a mobile sink;achieving high lifetime and low delay in very large sensors networks using mobile sinks;efficient mobile data collection with mobile collect;throughput maximization in mobile WSN scheduling with power control and rate selection;coverage estimation in heterogeneous visual sensor networks;adaptive synchronization control with multi-level buffer in wireless multimedia sensor networks;timely report delivery in social swarming applications;personal marks and community certificates: detecting clones in wireless mobile social networks;a ubiquitous publish/subscribe platform for wireless sensor networks with mobile mules;and distributed subspace projection in wireless sensor networks using computational codes.
A denial-of-service (DoS) / distributed-denial-of-service (DDoS) attack may result in rapid resource depletion along the attack path. For steppingstone and masquerading techniques typically used in DoS/DDoS attacks su...
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network alignment is an optimization problem to find the best one-to-one map between the vertices of a pair of graphs that overlaps as many edges as possible. It is a relaxation of the graph isomorphism problem and is...
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ISBN:
(纸本)9781467308052;9781467308045
network alignment is an optimization problem to find the best one-to-one map between the vertices of a pair of graphs that overlaps as many edges as possible. It is a relaxation of the graph isomorphism problem and is closely related to the subgraph isomorphism problem. the best current approaches are entirely heuristic and iterative in nature. they generate real-valued heuristic weights that must be rounded to find integer solutions. this rounding requires solving a bipartite maximum weight matching problem at each iteration in order to avoid missing high quality solutions. We investigate substituting a parallel, half-approximation for maximum weight matching instead of an exact computation. Our experiments show that the resulting difference in solution quality is negligible. We demonstrate almost a 20-fold speedup using 40 threads on an 8 processor Intel Xeon E7-8870 system and now solve real-world problems in 36 seconds instead of 10 minutes.
Massively parallel DNA sequencing platforms have become widely available, reducing the cost of DNA sequencing by over two orders of magnitude, and democratizing the field by putting the sequencing capacity of a major ...
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Peer-to-peer conference is an interactive multi-users conferencing application that improves the issues of concentrated loading, single-point failure and expensive infrastructure cost for the traditional centralized c...
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Current multicore system technology enables implementation of particular program functions like library operations, special functions generation, optimized data search etc. using dedicated computing units to increase ...
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ISBN:
(纸本)9783642281501;9783642281518
Current multicore system technology enables implementation of particular program functions like library operations, special functions generation, optimized data search etc. using dedicated computing units to increase overall program performance. A parallel system can be equipped with a set of such units to speed up execution of applications, which use such functionality. To properly model and schedule programs using such functions running on a dedicated hardware, a proper program representation must be introduced. the paper presents special scheduling algorithm for programs represented as graphs, based on a modified ETF heuristics. the algorithm is meant for a modular architecture composed of many CMP modules interconnected by a global data communication network. the assumed architecture of dedicated CMP modules enables personalized fully synchronous program execution, which uses communication on the fly to strongly reduce inter-core communication overheads.
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