基于SOA的智能交通综合信息平台集成研究

分析了当前各ITS子系统的状况,以及建设智能交通综合信息平台的重要性和必要性;介绍了SOA和WebServices计算技术;提出了基于SOA的智能交通综合信息平台的集成架构、优势、集成的重点和难点;并对该平台的实现作了分析。     

一种基于磁盘块的持续数据保护系统

数据重要性不断提高,对数据保护提出了越来越高的要求。基于数据的细粒度保护,以最小的时间代价和存储代价来保护数据,并以最少的数据损失量来恢复数据,则是数据保护的追求目标。针对此需求,提出并设计实现了一套基于磁盘块的持续数据保护系统。该系统高效而灵活地实现了Windows操作系统下的磁盘数据的保护。测试表明,该系统在使用时对正常的业务影响很小;在灾难发生后可以在较短的时候内将数据恢复至可用状态。     

Color segmentation robust to brightness variations by using B-spline curve modeling

Color segmentation takes a great attention because color is an effective and robust visual cue for characterizing an object from the others. However, color segmentation suffers from color variations incurred by irregular illumination changes. We propose a reliable color modeling approach in hue–saturation–intensity (HSI) color space while considering intensity information by adopting the B-spline curve fitting to make a mathematical model for statistical characteristics of a color with respect to intensity. It is based on the fact that color distribution of a single-colored object is not invariant with respect to brightness variations even in the HS (hue–saturation) plane. The statistical characteristics contain the mean and standard deviation of hue and saturation with respect to intensity. They are mathematically expressed as four bar graphs. In order to fit the bar graphs to continuous curves, we use B-spline curve fitting procedure. From several experimental results, we verify that the proposed algorithm is successfully applied to color segmentation under various illumination conditions.     

Interpersonal perception in bulletin board systems among Chinese Internet users

A study investigating the accuracy of interpersonal perception in Internet Bulletin Board Systems (BBS) and the variables that affect the accuracy were conducted in two phases: in the phase one, 58 participants were selected from the BBS which was built on the Internet in advance. During the phase two, participants were requested to complete the Myers–Briggs Type Indicator (MBTI) to assess their personalities, and to choose another member in the BBS as their “target”. The assessment packets were then administered to the participants in the following order: the demographic and Internet use survey, the MBTI used by the judge to assess their target’s personality, and the relationship survey between judge and target. The results showed that 76.7% participants made the correct judgment on two to three out of four dimensions of the personality type. The correlation analysis indicated that the variables affected the accuracy were from four aspects: judge, target, relationship and similarity. The binary logistic regression analysis showed that the target’s personality, the judge’s education level, the similarity between them, the stereotypes and projection played important roles on the accuracy. Possibilities for future research on this issue are also briefly discussed.     

校园网业务系统数据整合设计与研究

校园网业务系统数据整合目的在于使得业务系统数据的利用率达到最佳,消除由于异构数据源引起的信息孤岛。它对基于Java语言的Hibernate框架进行业务系统的数据整合技术进行了分析和研究,并与现有的结构进行了对比。通过对现有的整合平台和整合技术的对比,从而结合Java语言自身的优势和特点提出基于Hibernate框架结构的整合技术,并实现了数据整合的目的。     

基于VB与MATLAB编程模拟光栅光谱分析系统

该仿真软件将Matlab的计算优势与Visual Basic图形用户界面开发方面的优势结合起来仿真模拟了单色光单缝衍射和光栅衍射实验,实验结果的图样细致逼真,结合3D动画演示使整个物理过程变得直观,为光学的理论分析和实验教学提供了新的途径。     

高性能计算机在地震资料处理中的应用

本文简要介绍了高性能计算机,并描述了石油勘探基本原理和地震资料处理中叠前偏移等应用对高性能计算机在运算量和存储方面的需求,针对地震资料处理中的应用,讨论了高性能计算机几个关键技术的现状并对未来进行展望。实际情况表明,地震资料处理依赖于高性能计算机等信息技术,同时高性能计算机等信息技术也限制着许多地震资料处理新方法新技术的普遍应用。     

一种移动机器人在三维动态环境下的路径规划方法

提出一种基于遗传算法的三维动态环境下的路径规划方法,通过对机器人的运动行为进行编码,将各种约束条件融入到遗传算法当中,规划出可实际应用的避障路径,仿真研究表明该方法是简单有效的.     

Logic Programs,Compatibility and Forward Chaining Construction

Logic programming under the stable model semantics is proposed as a non-monotonic language for knowledge representation and reasoning in artificial intelligence. In this paper, we explore and extend the notion of compatibility and the Λ operator, which were first proposed by Zhang to characterize default theories. First, we present a new characterization of stable models of a logic program and show that an extended notion of compatibility can characterize stable submodels. We further propose the notion of weak auto-compatibility which characterizes the Normal Forward Chaining Construction proposed by Marek, Nerode and Remmel. Previously, this construction was only known to construct the stable models of FC-normal logic programs, which turn out to be a proper subclass of weakly auto-compatible logic programs. We investigate the properties and complexity issues for weakly auto-compatible logic programs and compare them with some subclasses of logic programs.     

会计电算化局域网共享资源的安全管理研究

通过对会计电算化局域网主要功能和特点的分析,有针对性地提出了会计电算化局域网共享资源的安全管理技术和解决方案.