Fuzzy linear programming approach to multiattribute decision making with multiple types of attribute values and incomplete weight information

In the classical Linear Programming Technique for Multidimensional Analysis of Preference (LINMAP), the decision maker (DM) gives the pair-wise comparisons of alternatives with crisp truth degree 0 or 1. However, in the real world, DM is not sure enough in all comparisons and can express his/her opinion with some fuzzy truth degree. Thus, DM's preferences are given through pair-wise comparisons of alternatives with fuzzy truth degrees, which may be represented as trapezoidal fuzzy numbers (TrFNs). Considered such fuzzy truth degrees, the aim of this paper is to develop a new fuzzy linear programming technique for solving multiattribute decision making (MADM) problems with multiple types of attribute values and incomplete weight information. In this method, TrFNs, real numbers, and intervals are used to represent the multiple types of decision information. The fuzzy consistency and inconsistency indices are defined as TrFNs due to the alternatives’ comparisons with fuzzy truth degrees. Hereby a new fuzzy linear programming model is constructed and solved by the possibility linear programming method with TrFNs developed in this paper. The fuzzy ideal solution (IS) and the attribute weights are then obtained. The distances of alternatives from the fuzzy IS can be calculated to determine their ranking order. The implementation process of the method proposed in this paper is illustrated with a strategy partner selection example. The comparison analyzes show that the method proposed in this paper generalizes the classical LINMAP, fuzzy LINMAP and possibility LINMAP.     

A novel micro-fluidic biosensor for the rapid and sequence-specific detection of DNA with electrophoretic driving mode and laser-induced fluorescence detector

A novel DNA biosensor, which combines the merits of micro-fluidic chips, the electrophoretic driving mode, paramagnetic beads amplification, and laser-induced fluorescence detection was developed for the rapid and sequence-specific detection of DNA in this study. The proposed DNA biosensor has much higher discrimination ability for the detection of single-base mismatch and much stronger resistibility to the complex matrixes of real samples in comparison with previous biosensors. These features, as well as its ease of fabrication (the fabrication of the sensor takes only 10 min except the fabrication of micro-fluidic chip), operation convenience, stability, better re-usability (micro-fluidic chip can be reused without any extra treatment) and short analysis time (one determination only takes 15 min), make it a promising alternative to rapid detection of DNA in clinical diagnosis. With the help of the biosensor, we successfully determined DNA, which related to oral cancer, in a saliva sample without any pre-separation or dilution with a detection limit of 4.2 × 10^?11 M and a relative standard deviation (n = 5) <5 %. The success in the present biosensor served as a significant step toward the practical application of the biosensor in clinical diagnosis.     

红外图像统计闭值分割方法

经典的统计阈值方法采用某种形式的类方差和作为阈值选择的准则,未考虑实际图像的特性,对目标和背景具有相似统计分布的图像的分割效果不甚理想。为此,利用阈值分割后两个类的标准偏差定义了一个新的阈值选择准则,并通过最小化此准则选择出最佳分割阈值。通过一系列实际图像上的实验结果表明,与现有的几种经典阈值分割方法相比,本方法分割图像的效果更好,尤其是对红外图像分割的效果更为明显。     

城市道多路口交通信号实时控制仿真设计

在单路口交通灯实时控制的基础上对城市道路多路口交通灯实时控制进行了研究。提出了一种双层次子区域的智能划分方法并应用于区域交通信号的实时控制,在子区域基础上建立多交叉口数学模型;运用指数平滑预测模型为BP神经网络模型提供学习所需数据,并将得到的混沌交通流序列与改进泊松函数得到的泊松分布断面发车随机数进行比较。通过上述模型及算法最终得到区域交通路口实时配时方案。     

行政生态视角下政府组织模式的创新研究

随着信息时代的到来,行政生态环境发生了深刻的变化,传统的政府组织模式难以适应新时代的要求,组织模式变革成为政府改革的重要环节。本文从信息社会这一行政生态环境出发,探讨了电子化政府组织模式的管理理念、创新的管理方法,并对我国电子化政府组织模式的构建提出了相关的建议。     

基于词内部模式的新词识别

提出一种基于词内部模式的新词识别算法,该算法在重复串查找的基础上,结合词内部模式的特征提出改进位置成词概率和首尾单字成词概率的加权,依次判断互信息、邻接类别等统计量,对新词进行识别。通过不同的实验对比发现,该算法在一定程度上能有效提取新词。     

台风综合预报GDSS的研究

以会商式台风综合预报为背景,首先,分析了传统会商式台风综合预报存在的不足。其次,针对这些不足提出了改进意见：针对参与者意见的集结问题,提出了融合有序综合评价和专家权值的群体偏好集结算法;针对会商要求参与者坐在PC前面的问题,引入了基于J2ME的手机专家;针对会商结论受主观因素影响较大的特点,引入了以各种客观预报方法为基础的客观专家。最后,给出了改进后的台风综合预报GDSS整体流程,设计并实现了原型系统。     

基于SharePoint的一种企业在线文档管理解决方案设计

本文针对现有企业文档管理中存在的问题和需求,设计了一种基于网络的、分布式的文档在线管理方案。以微软新产品SharePoint Server 2007为该解决方案的设计平台,研究了SharePoint Server 2007为文档管理提供的几个重要的功能并在此基础上设计了一个实际的案例。     

游戏程序设计中若干问题的探讨

游戏编程是当今程序设计的一个热点,开发过程会遇到各种各样的问题。通过限制构造函数和拷贝函数,设计一个单体全局管理类,可以避免不合适的调用。采用分块技术加栽地图,可以在时空性能上优化游戏。阐述了D3D的空间坐标变换。分析了万向节死锁问题发生的原因,并提出了解决办法。     

随机时延网络控制系统的H∞输出反馈控制器设计

研究了一类具有随机通讯时延的网络控制系统的控制器设计问题.同时考虑了控制器和执行器之间,控制器和传感器之间这两类由于有限网络带宽而出现的随机传输时延.采用满足Bernoulli分布的二进制序列来描述数据传输的随机时延.利用矩阵不等式方法给出了动态输出反馈控制器存在的充分条件,所设计的控制器使得闭环系统是均方意义下指数稳定并具有给定的H∞性能.采用SLPMM(sequentially linearprogramming matrix method)给出了控制器的求解算法.仿真算例说明该方法的有效性.