面向军事行动的后勤保障系统架构与关键技术

为了解决传统系统忽略后勤保障与军事行动间交互作用的局限性,从后勤保障对军事行动的感知与响应视角,对面向军事行动的后勤保障系统进行研究.在分析系统需求的基础上,构建响应灵敏和柔韧健壮的系统架构,给出系统实现关键技术,动态捕捉后勤保障对军事行动的协同效应.该系统的研究可为后勤保障提供决策信息,对于提高后勤保障力度具有重要作用.     

A note on semidefinite relaxation for 0-1 quadratic knapsack problems

We investigate in this note solution properties of semidefinite programming (SDP) relaxation for 0-1 quadratic knapsack problem (QKP). In particular, we focus on the issue of uniqueness of the optimal solution to the SDP relaxation for QKP. We first give a counterexample which shows that the optimal solution to the SDP relaxation for QKP could be non-unique. This is in contrast with the case of unconstrained 0-1 quadratic problems. A necessary and sufficient condition is then derived to ensure the uniqueness of the optimal solution to the SDP relaxation for QKP.     

A hierarchical dense deformable model for 3D face reconstruction from skull

3D face reconstruction from skull has been investigated deeply by computer scientists in the past two decades because it is important for identification. The dominant methods construct 3D face from the soft tissue thickness measured at a set of landmarks on skull. The quantity and position of the landmarks are very vital for 3D face reconstruction, but there is no uniform standard for the selection of the landmarks. Additionally, the acquirement of the landmarks on skull is difficult without manual assistance. In this paper, an automatic 3D face reconstruction method based on a hierarchical dense deformable model is proposed. To construct the model, the skull and face samples are acquired by CT scanner and represented as dense triangle mesh. Then a non-rigid dense mesh registration algorithm is presented to align all the samples in point-to-point correspondence. Based on the aligned samples, a global deformable model is constructed, and three local models are constructed from the segmented patches of the eye, nose and mouth. For a given skull, the globe and local deformable models are iteratively matched with it, and the reconstructed facial surface is obtained by fusing the globe and local reconstruction results. To validate the presented method, a measurement in the coefficient domain of a face deformable model is defined. The experimental results indicate that the proposed method has good performance for 3D face reconstruction from skull.     

安钢SAP预留系统的开发与应用

本文简述了安钢信息化建设概况,介绍了安钢信息化建设中开发SAP预留系统的设计流程,阐述了预留系统实现的功能.     

配电网自动化系统线路故障自动隔离功能

馈线自动化是配电网自动化系统一个非常重要的功能,在国内目前这方面的技术还不够成熟.本文探讨了配电网故障自动查找并隔离的方法.     

用于视觉传感器的有理系数小波滤波器的设计

有理系数小波滤波器的设计可以通过降低小波函数消失矩阶数来实现,但设计方程中出现的自由变量的取值需要在一定的范围之内,因为需要满足Daubechies紧支集条件。归纳总结了有理系数小波滤波器的设计过程,并以长度为4的有理系数小波滤波器设计为例,对如何确定设计方程中自由变量的取值范围进行了讨论,以得到适用于视觉传感器图像处理算法硬件实现的有理系数小波滤波器。     

基于关联规则的商品推荐系统

关联规则是数据挖掘中的一个重要问题,本文在研究关联挖掘的基础上,通过对过去客户的交易记录进行分析,建立关联规则,为客户提供商品推荐,从而也为电子商务网站店主提供正确的盈利导向。     

Solution to Generalized Sylvester Matrix Equations

An explicit solution to the generalized Sylvester matrix equation AX+BY= EXF is established. This solution is expressed in terms of the R-controllability matrix of (E, A, B), a generalized symmetric operator matrix and an observability matrix. Moreover, based on this solution, solutions to some other matrix equations are also derived. The results may provide great convenience for the analysis and synthesis problems related to these equations.     

基于译码表的字符预处理技术及其在协议识别中的应用

本文提出一种利用FPGA内部存储器构造译码表实现字符预处理来简化模式匹配电路的方法,并将其应用于高速链路的应用层协议识别。该方法利用共享的译码表对正则表达式的文字进行预译码,并将常见的应用层协议模式映射成简化的逻辑电路,再将电路并行化,从而用较少的硬件资源来达到最大的吞吐量,为当今高速主干链路的流管理提供了一种可行的解决方案。