确定性矩阵

college entrance examination

csharp写的一个贪吃蛇游戏程序，一个经典的游戏，适合新手学习csharp-CSharp written procedures for a Snake game, a classic game, suitable for novice learning CSharp

CAJ文件,几种随机接入协议的仿真性能比较分析-caj paper, several random access protocols for a comparative analysis of simulation performance

鼠标移动到图片上，图片自动缩到左上角，右下角出现文字说明，鼠标移走后图片恢复(Mouse moves to the picture, the picture automatically shrinks to the upper left corner, text description appears in the lower right corner, picture recovery after the mouse moves away)

Zigbee的开发资料，包括原理图和PCB图(Development materials of Zigbee, including schematic and PCB diagrams)

说明：  matlab /simulink电力电子仿真经典教程，这个是matlab /simulink电力电子仿真入门教程，简洁明了！！！非常适合初学者，这是我迄今为止见过的最好的入门教程，没有之一！！！(matlab / simulink power electronics simulation classic tutorial, this is matlab / simulink power electronics simulation tutorial, simple and clear! ! ! Very suitable for beginners, this is the best introductory tutorial I have seen so far, no one! ! !)

提出了一种自动构造特定领域本体的方法，该方法应用术语抽取和多重聚类技术。在术语抽取阶段，通过术语在专业语料与背景语料中出现概率的对比，采用LLR公式对术语进行评分，取得了更好的抽取效果。在层级关系发现过程中，采用上下文共现信息结合HowNet中词语的语义相似度，进行术语间相似度度量，力求获得术语间最合理的相关状况。同时改进了k-medoids聚类算法，更准确地发现术语的层级关系，进而构造出特定领域的本体。(This paper presents an approach to mining domain-dependent ontologies using term extraction and relationship discovery technology.There are two main innovations in the approach. One is extracting terms using log-likelihood ratio, which is based on the contrastive probabilityofterm occurrence in domain corpus and background corpus. The other is fusing together information from multiple knowledge sources as evidencesfor discovering particular semantic relationships among terms. In the experiment, traditional k-mediods algorithm is improved for multi-levelclustering. The approach to produce an ontology for the domain of computer science is applied and promising results are obtained.)

本PPT介绍了协方差函数及其计算公式，变异函数及其计算公式，克里格插值方法的过程，最后给了一个基于克里金插值的实例.(This PPT introduces covariance function and its formula for calculating the variation function and its formula, Kriging interpolation process, and finally given an example based Kriging interpolation.)

人员疏散 障碍物 元胞自动机原理 时间计算以及人员行走规律(evacuation Obstacle Cellular automata principle Time calculation and the rule of personnel walking)

SQL Server 导出SQL语句,生成内容包括创建表、约束和数据的语句(create SQL,contains insert and create statament)