一种USB-HOST在嵌入式系统中的实现爱国者USB移动存储转接王(嵌入式)

本文提出了国内知名移动存储厂商北京华旗资讯科技发展有限公司自主设计的USB Host解决方案－－爱国者USB移动存储转接王（嵌入式）产品，具有MemMaster模块，该模块遵守USB 1．1协议规范，可用于作为嵌入式设备的数据输入输出模块，将数据以文件的形式和作为Slave端的基于USB接口的移动存储器进行交换。     

配比加香时滞控制系统设计及其实现

本文将常规控制理论、配比加香控制系统的基本特点以及PLC编程的技巧进行有机结合，提出了一整套简单可行的控制算法，通过延时送数，累计量配比、实时补偿等控制策略，有效的实现了这类大滞后系统的高精度参配控制问题，末尾给出了该控制算法在制丝线的一些实际应用情况，应用情况验证了控制算法的有效性。     

序列关联并行挖掘算法研究

Ming sequential associations is becoming increasing essential in many scientific and commercial domains Developing parallel algorithm becomes quite challenging depending on enormous size of available dataset and possibly large number of mined associations ,the nature of input data and the timing constraints imposed on the desired associa-tions. In this paper , we discuss several different parallel algorithms that cater to various situations to speed up thecurrent mining process.     

采用移动代理技术建立数据仓库的研究

The thesis sets forth for the policy maker a way of achieving the aim of building model data warehouse based on relation model distributed database by using Mobile Agent technology. According to the design principal of data warehouse and the standard technology,author puts forward forming metadatas by tree pattern or forests strctur-e,giving the definition of metadata. Model and the general principal of combining metadatas to form data warehouse and showing a picture tool of data warehouse designing system. It creates a Mobile Agent orieinal form that can realize the constrction of data warehouse based on relation model distributed database.     

KDD中知识的自动评价系统

How to automatically evaluate the discovered knowledge is very important in KDD,but the research on this problem is very little. The paper gives one automatic system for evaluating the knowledge, and provides many solutions. First some relative concepts are described,and the construction of this system is given,and uses the case to prove it.     

数据仓库中的元数据与CWM规范

Metadata plays a very important role in data warehouse. Metadata helps developers and administrators develop, maintain and manage data warehouse, it also helps end users understand, acquire and analyze data. In this paper contents and functions about metadata are introduced,and CWM specification advanced by OMG is discussed.     

公共数据库中可信记录的认证码的研究

在用户享有授权可自由添加记录的公共数据库中，数据良莠难分。为提高公共数据库的可信度，推广了敏感数据的完整性锁的概念，提出了一种对经由领域专家验证的可靠记录作标记的方法，且称所作标记为认证码。讨论了认证码的生成准则，并借助于MD5算法、DES密码算法中的S盒和RSA密码体制，设计了一个认证码的生成方案，最后还指出所生成的认证码能有效地抵抗伪造攻击和替伐攻击。     

基于数据流的近似查询计算及其应用研究

通过分析基于实化聚集视图的查询重写方法，将相关的查询计算理论与数据流的查询相结合，针对数据流的特征，给出了一种具有广泛应用前景的基于数据流的近似查询计算方案。     

基于小波多分辨率分析的多通道遥感图像数据融合方法及实现

对同一目标的多波谱遥感图像进行融合、是富集有用信息、提高图像空间分辨率和解释水平的有效手段，本文提出了基于小波多分辨率分析的多通道遥感图像数据融合的原理、方法及实现过程，实例分析其结果良好。     

数据挖掘技术在教学评价中的应用

数据挖掘技术是在海量数据中提取有用信息的有效手段,它被广泛应用于经济效益巨大的金融、商业等领域,而在教学评价中应用较少,这使得一些对教学效果有较大影响的因素往往被忽视。该文介绍了把数据挖掘技术引入网上教学评价中的有益尝试。