A new improvement of TCP based on adaptive filtering

On the basis of studying the standard TCP retransmission mechanism,this paper proposes a method to adopt the theory of adaptive filtering in the field for the estimation of round trip time (RTT).Then t...     

双核金属钌羰基-亚硝基配位化合物Ru_2（NO）_2（CO）_n（n=8,7,6,5）的量子化学计算

采用BP86和MPW1PW91两种密度泛函理论方法对双核金属钌羰基-亚硝基配位化合物Ru2（NO）2（CO）n（n=8,7,6,5）进行了量子化学理论计算,优化后得到了19个单态和三态异构体,讨论了它们的结构和键的性质。得到的Ru2（NO）2（CO）8,Ru2（NO）2（CO）7,Ru2（NO）2（CO）6和Ru2（NO）2（CO）5的基态分别是C2v,C1,C2v和C1构型的单态。将Ru2（NO）2（CO）n（n=7,6,5）与同族铁的配合物Fe2（NO）2（CO）n（n=7,6,5）进行比较,发现二者的稳定构型特点不一致。     

基于机器学习的Cortex-M监控视频车型识别

为了解决高速公路环境下监控视频图像车型识别需要将海量视频数据上传计算机服务器中心,对所有的视频流图像进行结构化处理和车型识别,造成服务器中心数据压力大、计算任务重,对服务器性能要求高的问题。对此,提出一种基于机器学习的Cortex-M监控视频车型识别的方法。首先,将训练机训练好的六种车型的权值矩阵文件移植到前端Cortex-M核系列开发板上,采用开发板内嵌的CMSIS-NN网络函数库搭建与训练机相同的网络模型结构;同时采用开发板内嵌的CMSIS-DSP库加快图像处理速度,并对选择处理监控视频图像实现车型识别;实验结果表明,该方法平均识别率达到94.6%以上,与采用计算机进行识别相同,可见该方法能够缓解大量视频上传给服务器中心造成的压力,为高速公路环境下监控视频图像车型识别研究提供了一种可选择的方案。     

铁路突发事件应急资源调配的优化与决策

优化铁路应急救援资源的调配是降低突发事件人员伤亡、减少财产损失的重要途径。基于应急资源调配的特点及要求,建立应急资源调配时间最短的单目标模型,以及调配时间最短,且应急出救点最少的双目标模型;并运用分层序列法进行求解。研究表明,双目标模型优化可以减少应急出救点、节约救援成本。利用Matlab软件设计应急资源优化调配的决策程序,实现资源调配决策的快速化、科学化;并以南昌铁路局为例进行实证分析。研究成果为铁路突发事件的科学应急救援,减少事故救援时间和成本提供参考。     

AN EXTENSION OF TOPSIS FOR FUZZY MCDM BASED ON VAGUE SET THEORY

1.Introduction The multicriteria decision-making problem(Kickert1978)is a kind of problem that all the alternatives in the choice set can be evaluated according to a number of criteria.A MCDM problem can be concisely expressed in matrix format as C1C2C n11112122122212nnm m m mnA x x xMA x x xA x x x=W={w1,w2,,wn}where A1,A2,,Am are possible alternatives among which decision-makers have to choose,C1,C2,,C n are the criteria with which alternative performance are measured,xi j is the rati…     

VIEWING URBAN DISRUPTIONS FROM A DECISION INFORMATICS PERSPECTIVE

1. Introduction Urban infrastructures are the focus of terrorist acts because, quite simply, they produce the most visible impact, if not casualties. From the September 11, 2001 (i.e., “9/11”) attack on New York City’s World Trade Center to the more recent March 11, 2004, attack on Madrid’s commuter trains, it is obvious that urban centers are indeed vulnerable to such hideous acts. A systemic or holistic approach to securing the infrastructure systems that underpin an urban center isr…     

MODELING COMMERCIAL PROCESSES AND CUSTOMER BEHAVIORS TO ESTIMATE THE DIFFUSION RATE OF NEW PRODUCTS

1. Introduction In his famous seminal book (Rogers 1962), Rogers introduced and popularized a generic framework for analyzing and describing how the mechanism of diffusion of innovations works inside a given population. In this general approach, “innovation” can of course be understood in a large way: it may indeed referto various contexts such as the learning of a new practice, the use of a new tool, the launch of a new product, etc. The strength of Rogers' point of view comes from the fac…     

AGENT-BASED SIMULATION FOR KANSEI ENGINEERING： TESTING A FUZZY LINEAR QUANTIFICATION METHOD IN AN ARTIFICIAL WORLD

This paper argues that agent-based simulation can be used as a way for testing Kansei Engineering methods which deal with the human reaction from sensory to mental state, that is, sensitivity, sense, sensibility, feeling, esthetics, emotion affection and intuition. A new fuzzy linear quantification method is tested in an artificial world by agent-based modeling and simulations, and the performance of the fuzzy linear method is compared with that of a genetic algorithm. The simulations can expand people＇s imagination and enhance people＇s intuition that the new fuzzy linear quantification method is effective.     

ORGANIZATIONAL LEARNING AND VENDOR SUPPORT QUALITY BY THE USAGE OF APPLICATION SOFTWARE PACKAGES： A STUDY OF ASIAN ENTREPRENEURS

In this paper we study how organizational learning impacts organizational behavior, and howvendor support quality enhances product adoption and usage behavior.These constructs were verifiedusing Application Software Packages(ASP)-a prewritten, precoded, commercially available set ofprograms that eliminates the need for individuals or organizations to write their own softwareprograms for certain functions. The relationship between ASP usage, usage outcomes and useprocesses were also investigated. Two hundred and ninety-five Chinese, Indian, and Malayentrepreneurships were studied. It was found that usage outcome strongly determines usage, while useprocess has only an indirect relationship (via outcome) on usage. The impact of organizational learningand vendor service quality on usage, usage outcome, and use process were robust. Theoretical andpractical implications of the research are discussed.     

具有振动位势的二阶非线性常微分方程的区间强迫振动判别准则

给出具有振动位势的二阶非线性常微分方程(r(t)y′(t))′ p(t)y′(t) Q(t,y(t))=g(t)区间强迫振动的判别准则和实例。