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FrameBase: Representing N-ary Relations using Semantic Frames
FrameBase Representing N-ary Relations Semantic Frames
2016/1/22
Large-scale knowledge graphs such as those in the Linked Data cloud are typically represented as subject-predicate-object triples. However, many facts about the world involve more than two entities. W...
针对骨干网上异常检测的特殊要求，提出了一种基于Filter-ary-Sketch数据结构的异常检测方法。该方法通过Filter-ary-Sketch实时记录网络流量信息，然后每隔一定周期进行基于多维熵值的异常检测。如果出现异常则根据Filter-ary-Sketch记录的流量信息进行异常点定位，最后利用Bloom Filter中记录的源IP信息进行恶意流量阻断。该方法能够检测多种类型的网络攻击，且...
针对M-ary支持向量机(SVM)多类分类算法结构简单,但泛化能力较弱的特点,提出了与纠错编码理论相结合的改进的M-ary SVM算法。首先,将原始类别信息编码作为信息码;然后结合纠错编码理论及期望的纠错能力,产生一定程度上性能最佳的编码,作为分类器训练的依据;最后,对于识别阶段输出编码中的错误分类利用检错纠错原理进行校正。实验结果表明,改进的算法通过引入尽可能少的冗余子分类器增强了标准M-ary...
Performance Improvement by Fibre Nonlinearity Compensation in 112 Gb/s PM M-ary QAM
Coherent communications Nonlinear optics fibers
2015/5/26
We demonstrate that digital back-propagation offers up to six-fold enhancement in transmission reach when nonlinear fibre impairments are compensated in coherently-detected 112 Gb/s PM m-ary QAM, with...
4096-ary OCDM at 2.5 Gbit/s using multidimensional PSK codes with a single multi-port encoder/decoder
4096-ary OCDM multidimensional PSK code encoder/decoder
2015/5/15
A record 4096 (=16X16X16)-ary OCDM system at 2.5Gbps using multidimensional phase shift keying (PSK) codes with a single multi-port optical encoder/decoder has been demonstrated for the first time. An...
Demonstration of 11-Gb/s, 20-km Reach WDM PON using Directly-Modulated RSOA with 4-ary PAM Signal
Fiber optics links subsystems Semiconductor optical amplifiers
2015/6/10
We demonstrate the error-free transmission of 11-Gb/s 4-ary PAM signal obtained by using a directly modulated RSOA over 20 km of SMF for the cost-effective realization of high-speed WDM PONs.
Demonstration of Multi-Rate Thresholded Preamplified 16-ary Pulse-Position-Modulation
Optical communications Free-space optical communication
2015/6/9
Sensitive multi-rate optical communication is experimentally investigated on static and fading channels at data rates from 52 Mbps to 311 Mbps using 16-ary pulse-position-modulation,channel coding and...
Experimental demonstration of secure 16-ary, 2.5Gbit/s OCDMA using single multi-port en/decoder
OCDMA single multi-port en/decoder
2015/8/3
Secure 16ary OCDMA is experimentally demonstrated by encoding four serial bits at 2.49Gbps into 16optical codes via serial-to-parallel conversion and decoding by a multiport optical encoder/decoder.
双工k-ary n-mesh的虫孔路由分析
双工k-ary n-mesh互联网 虫孔路由流控制 M/G/1模型 倒推算法 模拟器
2007/12/28
现代多处理机系统的互联网络多采用虫孔路由流控制.该文针对虫孔路由流控制和确定性路由算法下的双工k-ary n-mesh计算机互联网,采用倒推算法建立了求解消息平均传输延迟的分析模型,并建立了仿真模型.理论分析与仿真结果基本吻合,表明该分析模型<具有较好的精确度.
k-ary n-cube网络中高速开关TH-Switch的设计与路由算法
网络并行计算 互联网络 路由算法.
2007/12/26
随着处理器速度的不断提高,互联网络逐渐成为限制网络并行计算系统性能发挥的主要瓶颈.本文中所介绍的TH-GBNet是基于动态crossbar开关的可扩展高速互联网络.TH-GBNet系统以TH-Switch为基本开关单元,具有很强的扩展能力.其中的TH-Switch开关单元具有8个双向端口, 单向的数据传输率能够达到1.056Gbps.本文主要介绍了高速开关TH-Switch的结构及其在k-ary ...
利用虚跨步切换技术中消息的依存关系只与相邻缓冲区队列相关的特点，设计了一种称为维度气泡流控(DBFC)的新型流控策略.该流控策略建立在虚跨步(VCT)切换和信约流控机制之上，通过分析端口信约值和路由信息实现点点间的流控.在无边带k-ary n-cube网络中，如果采用DBFC流控策略，即使网络中存在环相关，设计的自适应维度气泡路由(ADBR)算法仍可实现无死锁的最短距离的路由.对于以上结论，文中提...