Equitone Predicate Algebras and Their Applications

Predicates that preserve their values on a larger (extended) body of data are called equitone. An algebra of such predicates is constructed, a system of its generators is specified, and a complete system of transformations of identities is defined. The results obtained are used for construction and investigation of complete classes of compositions of various types and levels of abstractions that are used in logics of partial predicates.     

Quantum inspired method of feature fusion based on von Neumann entropy

One mission of feature fusion is to obtain a complete yet concise presentation of all existing feature data by detecting and fusing the duplicate feature data. In contrast to the already developed feature fusion methods which have shown their limitations, this paper applies the theories of quantum information to feature fusion. Further, a novel and effective step-wise quantum inspired feature fusion method, which detects the duplicate feature data based on maximum von Neumann mutual information and fuses the duplicate feature data using the operations on quantum state, is developed. This same idea is also used for feature dimensionality reduction, and the corresponding models are investigated. For comparison, another quantum inspired feature fusion method based on average quantum phase is presented here. The experimental results show that the quantum inspired feature fusion method based on von Neumann entropy gives better results on completeness and conciseness than the method based on average quantum phase.     

虚拟试验仪器及其类同功能集成

通过使用软件方法集成虚拟试验仪器和它们的类同功能,达到了便于操作、集中统一管理和方便维护的目的,提高了实验的效率.     

Kepler,von Neumann and God (More rounding-off error visualizations)

Today, both fundamental and applied research relies heavily on computers. We recall that the numerical study of nonlinear models by means of these machines depends on programs, for the associative property of the multiplicative operator is lost. TheN-body problem is used to display the sensitivity to numerical accuracy.     

基于通用仪器的集成测试系统的研究

针对传统测试设备功能专、研制周期长及造价高等缺点,设计并实现了基于通用仪器如示波器、信号源等的集成测试系统;系统突出通用性特点,根据不同的测试指标,分析了系统的总线选型、精度分析和可靠性,并给出了系统总体硬件设计和软件设计的方法;结合理论研究成果对实际项目进行了应用开发,实际应用结果表明:该系统能够满足某型空空导弹的舵机性能测试要求,与以往仅利用集成板卡组建的测试系统相比具有更高的测试精度,并且具备了通用性特点,提高了设备可复用性.     

当代市场经济中网络营销的安全及对策

随着国际互联网技术的日益成熟,网络营销在我国市场经济中发挥着越来越重要的作用。该文主要分析了网络营销在当代市场经济中的作用,探讨了网络营销所面临的两类安全问题,并分别对症下药,提出相应的解决办法。     

The Dirichlet and Neumann Problems for Elliptical Equations with Conjugation Conditions and High-Precision Algorithms of Their Discretization

New Dirichlet and Neumann boundary-value problems for elliptic equations with conjugation conditions are considered and existence and uniqueness of their solutions are studied. High-precision discretization algorithms are constucted based on the classes of discontinuous admissible functions.     

Book Review: John von Neumann,The Computer and the Brain, 2nd edition

Minds and Machines -     

Exploring the Use of Speech Features and Their Corresponding Distribution Characteristics for Robust Speech Recognition

The performance of current automatic speech recognition (ASR) systems often deteriorates radically when the input speech is corrupted by various kinds of noise sources. Several methods have been proposed to improve ASR robustness over the last few decades. The related literature can be generally classified into two categories according to whether the methods are directly based on the feature domain or consider some specific statistical feature characteristics. In this paper, we present a polynomial regression approach that has the merit of directly characterizing the relationship between speech features and their corresponding distribution characteristics to compensate for noise interference. The proposed approach and a variant were thoroughly investigated and compared with a few existing noise robustness approaches. All experiments were conducted using the Aurora-2 database and task. The results show that our approaches achieve considerable word error rate reductions over the baseline system and are comparable to most of the conventional robustness approaches discussed in this paper.     

论黑客及其刑事责任

黑客是信息时代的一股逆流,他们对网络社会具有严重的危害性.作者通过对黑客活动规律及特点的研究,引导人们历史地对待黑客,并从技术和法律上采取有效的预防、扼制措施,从而促进网络社会的健康发展.同时,对黑客及其刑事责任的研究,也是刑法学的重要课题.     

基于ActiveX的网络化虚拟仪器的设计与实现

基于ActiveX的网络化虚拟仪器主要是针对基于B/S架构的网络化测试系统.通过将客户端封装在ActiveX组件中,使用时被客户端下载到本地运行,使得网络负载得到有效控制,解决了B/S架构的网络化测试系统测试实时性差的问题。     

关于铁路售票系统的故障分析及改进策略

对近期的铁路旅客列车互联网售票系统出现故障的原因,从事务处理、数据库、数据接口与软件架构等方面进行了技术层面的分析,并且针对这些原因,对铁路旅客列车互联网售票系统进行优化提出了几点考虑,最后,总结了在软件开发过程中应该需要综合注意的一些因素。     

基于MODBUS协议的PLC与智能仪表的通信

通过实例介绍了一种基于MODBUS协议的西门予S7-300系列PLC与数字智能仪表间的通信方式及其设计与实现过程。实践证明,该通信方式简单可靠,效费比较高,具有一定的推广价值。     

基于多功能采集卡的2FSK调制与解调

利用NI多功能采集卡实现2FSK信号的调制与解调,通过LabWindows/CVI编程实现,充分发挥虚拟仪器“软件就是仪器”的优势。其中解调算法是对过零检测法的改进,不需要传统过零检测法复杂的滤波电路,通过搜索3个参数适用于解调不同频率的2FSK解码,克服了常规解调器只能解调固定2FSK信号的问题。调制算法在已知通信协议的基础上,通过对数据进行编码生成相位连续2FSK信号,利用采集卡的D/A通道定时发送,模拟通信系统的正常通信。本文的算法已经在作者研究的三套通信系统中经过检验,效果较好。     

彩色地图影像分割方法及其实现

利用统计模式识别的方法,通过提供强大的图像分析功能和方便的人机交互界面,在MAPGIS二次开发平台上实现了彩色地图影像的分割,能够解决绝大多数彩色套印地图的分层分色问题。     

关于计算机远程控制技术及相应软件应用分析

本文主要从计算机远程控制技术优势和一些常用远程控制技术软件两个方面对远程控制技术和应用软件进行探讨。     

浅析局域网故障排查及解决方法

通过对计算机局域网常出现的故障问题进行解析,减少管理员对网络故障的盲目操作性,帮助管理员找到解决局域网故障的适当方法,使整个网络畅通,提高整个网络管理的效率,并进一步优化网络。