Discovering Frequent Subtrees from XML Data Using Neural Networks

By rapid progress of network and storage technologies, a huge amount of electronic data such as Web pages and XML has been available on Internet. In this paper, we study a data-mining problem of discovering frequent ordered sub-trees in a large collection of XML data, where both of the patterns and the data are modeled by labeled ordered trees. We present an efficient algorithm of Ordered Subtree Miner （OSTMiner） based on two- layer neural networks with Hebb rule, that computes all ordered sub-trees appearing in a collection of XML trees with frequent above a user-specified threshold using a special structure EM-tree. In this algo- rithm, EM-tree is used as an extended merging tree to supply scheme information for efficient pruning and mining frequent sub-trees. Experiments results showed that OSTMiner has good response time and scales well.     

IA-32计算机技术课程的教学方法设计与应用

深圳职业技术学院计算机应用工程系对原微型计算机原理课程进行改革，经过对三届学生的教学实践，将《IA-32计算机技术》课程的教学方法归纳为“一个平衡点、一条主线、四个支撑”，并对这种教学方法的设计思想和应用情况进行了描述。     

计算机基础课程的探究型教学模式

在计算机基础课程的教学中采用探究型教学模式，对培养学生应用信息技术的能力和创新能力是非常有利的．结合教学实践，对探究型教学模式的3个环节进行了详细的论述，并指出在具体实施过程中应注意的若干问题。     

提高电脑建筑效果图制作效率的措施

对提高电脑效果图制作效率的重要性及常用方法进行了探讨，分析了制图效率低的原因，对合理配置计算机系统、优化计算机系统资源、熟练掌握软件使用技巧等进行了具体论述。     

传感器网络推拉混合模式代码传输方法

代码传输是实现无线传感器网络应用重构的关键技术.首先研究传感器网络环境自适应应用重构(EAAR)模型的两种代码传输模式-拉模式和推模式,并结合两种模式的特点提出一种适用于分簇传感器网络的能量有效代码传输模式-基于簇的混合代码传输(Cluster-based Hybrid Code Transmission, CHCT).在该模式下,簇头节点采用拉方式从基站获取代码,簇内节点采用推方式进行代码传输.仿真实验验证了方法的有效性并讨论了影响CHCT性能的主要参数.     

机房管理中自动配置IP地址和计算机名实现

阐述自动配置IP地址和计算机名实现方案，给出在WINDOWS2000和WINDOWS98下的具体实现。     

试论网络技术在促进消防社会化过程中的应用

根据计算机网络技术的特点,文章从消防设施、消防宣传、消防教育、消防行政效能建设等四个方面,阐述了网络技术在促进消防工作社会化过程中的应用前景。     

浅谈铁路运输实践课的教学

通过对铁路车站行车工作细则业务的系统分析和对铁路运输生产和组织管理的理论研究表明:铁路运输实践课为铁路运输专业学生提供了理论联系实际的平台,对培养学生独立分析和解决铁路行车方案问题的能力有着重要的意义。     

Efficient and power-awareness query over sensor networks

Sensor networks consisted of low-cost, low-power, multifunctional miniature sensor devices have played an important role in our daily life. Light and humidity monitoring, seismic and animal activity detection, environment and habitat monitoring are the most common applications. However, due to the limited power supply, ordinary query methods and algorithms can not be applied on sensor networks. Queries over sensor networks should be power-aware to guarantee the maximum power savings. The minimal power consumption by avoiding the expensive communication of the redundant sensor nodes is concentrated on. A lot of work have been done to reduce the participated nodes, but none of them have considered the overlapping minimum bounded rectangle (MBR) of sensors which make them impossible to reach the optimization solution. The proposed OMSI-tree and OMR algorithm can efficiently solve this problem by executing a given query only on the sensors involved. Experiments show that there is an obvious improvement compared with TinyDB and other spatial index, adopting the proposed schema and algorithm.     

有效开发教学资源,合理配置是关键——浅谈我校多媒体教室设备合理配置问题

随着教育改革的不断深入,利用多媒体手段进行教学、科研已是大势所趋。然而,如何充分挖掘和开发多媒体教室设备的各项功能,最大限度的发挥多媒体教室使用效率,以满足教学的最大需要,是一个普遍问题。因此,结合我校的实际情况,探讨我校多媒体教室设备配置问题,使多媒体设备更趋于完善,从而提高使用效率和教学效果。