搜索结果: 76-90 共查到“知识库 计算机网络”相关记录5775条 . 查询时间(1.5 秒)
网络空间大搜索研究范畴与发展趋势
网络空间大搜索 意图理解 意图匹配 智慧解答
2016/1/11
随着网络空间的拓展、网络应用模式的发展及大数据时代的到来，面向网络空间的下一代搜索引擎——“大搜索”已具有迫切的需求。阐述了网络空间大搜索的内涵及其特点，提出了大搜索的研究范畴，包括泛在网络空间信息获取与发掘、知识仓库构建和管理、用户搜索意图准确理解与表示、用户意图高效匹配和推演、大搜索安全可信与隐私保护等方面的内容，并针对上述问题，指出了具有5S特性的网络空间大搜索技术的发展趋势。
为探究页岩气藏水力压裂复杂裂缝网络的形成机理,开展了缝网扩展的数值模拟研究.考虑应力阴影和天然裂缝作用,建立了井筒和裂缝中流体流动模型,利用位移不连续方法求解应力与位移不连续量,然后构建了压力与裂缝宽度的迭代方程,并采用牛顿迭代法求解.通过比较数值解经典模型解析解,验证了模型和迭代解法的正确性.多簇裂缝同步扩展时裂缝间距越小,压裂液分配到各条裂缝越不均匀,靠近井筒跟部的裂缝的分流量越大,从而裂缝宽...
针对复杂激励条件下的振动控制,对Jiles-atherton模型的磁致伸缩作动器在双层隔振系统中的振动主动控制进行了研究,以传统滑模控制为基础,提出了一种柔性神经网络滑模控制算法。用正则化方法设计了控制器的切换矩阵,建立了神经网络权值和柔性映射参数更新学习公式,并将该控制策略应用于双层隔振系统的振动主动控制中。通过单频、多频及随机信号激励进行仿真研究,结果表明：柔性神经网络滑模控制器具有较强的鲁棒...
Dynamics of a ring network of phase-only oscillators
Synchronization Coupled oscillators Networks
2015/8/27
We investigate the existence, stability and bifurcation of phase-locked motions in a ring network consisting of phase-only oscillators arranged in multiple simple rings (sub-rings)which are themselves...
The interseismic velocity field of the central Apennines from a dense GPS network
Solutions combination GPS surveys
2015/8/26
Since 1999, we have repeatedly surveyed the central Apennines through a dense survey-style geodetic network, the Central Apennines Geodetic Network (CAGeoNet). CAGeoNet consists of 123 benchmarks dist...
Detailed Network Measurements Using Sparse Graph Counters: The Theory
Measuring the network traffic network counter memory storage counters
2015/8/21
Measuring network flow sizes is important for tasks like accounting/billing, network forensics and security. Per-flow accounting is considered hard because it requires that many counters b...
Convergence to Equilibrium in Local Interaction Games
Game theory model the network the dynamic modeling
2015/8/21
We study a simple game-theoretic model for the spread of an innovation in a network. The diffusion of the innovation is modeled as the dynamics of a coordination game in which the adoption of a common...
Noisy Network Coding
Compress-forward discrete memoryless network Gaussian network interference relay channel network coding noisy network coding relaying two-way relay channel
2015/8/12
A noisy network coding scheme for communicating messages between multiple sources and destinations over a general noisy network is presented. For multi-message multicast networks, the scheme naturally...
Generalized access control strategies for integrated services token passing systems
Integrated services LAN application factory automation distributed computing multimedia communication
2015/8/12
The demand for integrated services local area networks is increasing at a rapid pace with the advent of many new and exciting applications: office and factory automation, distributed computing, and mu...
We consider the problem of determining optimal wire widths for a power or ground network, subject to limits on wire widths, voltage drops, total wire area, current density, and power dissipation. To a...
Adaptive management of network resources
Power control rate control utility functions optimization and control adaptation
2015/8/11
This paper describes a new adaptive algorithm that smoothly and dynamically adjusts the system resources of link rates and transmitter powers to maximize the performance of the system. Performance is ...
Managing power consumption in networks on chips
Energy management low power regenerative stochastic processes system analysis and design
2015/8/11
In this work we present a new methodology for managing power consumption of NOCs, which we formulate using closed-loop control concepts, by introducing an estimator and a controller that implement the...
Throughput-centric routing algorithm design
Obliviousrouting interconnection networks multicommodityfl ows
2015/8/11
The increasing application space of interconnection networks now encompasses several applications, such as packet routing and I/O interconnect, where the throughput of a routing algorithm, not just it...
MP-DSM: a distributed cross layer network control protocol
network management TCP optimization control QoS cross layer utility functions
2015/8/11
We present a distributed cross layer approach to controlling the network performance under various QoS requirements in interference limited systems. The interaction between the different layers of the...
Analysis and optimization of randomized gossip algorithms
Distributed network gossip constraints the algorithm the iterative sequence markov chain
2015/8/11
We study the distributed averaging problem on an arbitrary network with a gossip constraint, which means that no node communicates with more than one neighbour in every time slot. We consider algorith...