Web mining based on Growing Hierarchical Self-Organizing Maps: Analysis of a real citizen web portal

This work is focused on the usage analysis of a citizen web portal, Infoville XXI (http://www.infoville.es) by means of Self-Organizing Maps (SOM). In this paper, a variant of the classical SOM has been used, the so-called Growing Hierarchical SOM (GHSOM). The GHSOM is able to find an optimal architecture of the SOM in a few iterations. There are also other variants which allow to find an optimal architecture, but they tend to need a long time for training, especially in the case of complex data sets. Another relevant contribution of the paper is the new visualization of the patterns in the hierarchical structure. Results show that GHSOM is a powerful and versatile tool to extract relevant and straightforward knowledge from the vast amount of information involved in a real citizen web portal.     

远程教学网格门户的设计

远程教学网格是网格计算技术在远程教育中的应用。文章从需求分析、体系结构、功能、用户界面、开发工具的选用等多个方面，阐述了远程教学网格门户的设计思想。     

浅议广州石化信息资源管理

分析了广州石化信息资源管理存在的问题。企业内部信息资源是管理的难点，需要从控制信息发布作为信息资源管理的切入点。信息资源管理的目的是提高信息服务的水平，信息资源管理中需加强信息服务，提高企业的竞争力。     

Comprehensive analysis of thin film nanoindentation data via internetportal—A principal feasibility study

Due to new analysis techniques which apply the concept of the effectively shaped indenter, a much more comprehensive analysis of nanoindentation data of thin films is possible. Even in the case of very thin coatings well below 100 nm thickness, important physical mechanical parameters like Young's modulus, critical stresses for phase transition and yield strength can be determined. Theoretically, also fracture toughness (critical stresses for cracks of various fracture modes) and intrinsic stresses should in principle be determinable. However, as the mathematical apparatus for such analysis is rather complex and the performance of the evaluation very cumbersome and difficult to learn, it seems reasonable to provide this type of calculation as a service within the internet. The present contribution is about the feasibility of such a remote analysis service and the state of its realisation.     

企业信息门户及其在水利领域中的应用

采用企业信息门户技术来实现企业不同应用系统的集成,是企业信息化建设的一个最佳方案。该文介绍,企业信息门户的主要技术,针对“数字黄河”建设工程中面临的问题,提出了水利信息门户的概念,并用来设计和实现一个原型系统。     

英威腾CHV190变频器在门座式起重机中的应用

分析了门座式起重机的运行特点,详细阐述了英威腾CHV190起重机专用变频器用于门座式起重机调速时的电动机、变频器及其制动方式的选型原则和变频器周边设备的容量计算方法,并列举了CHV190变频器在门座式起重机中的应用案例。     

网络准入控制技术与设计

网络准入控制技术是通过使用用户身份认证手段,对用户的接入设备进行状态评估,实现对用户属性、在线状态、流量限制的全面管理与掌握。论文首先分析了网络准入控制技术,深入理解该技术的工作原理,并根据工作流程展开系统部署以及组网方式。     

基于EIP的电信行业管理信息系统集成探讨

本文从我国电信行业信息化建设所面临的分散建设、信息不能共享的现状出发,分析了电信行业管理信息系统集成的必要性,并提出了在SOA体系架构下,基于EIP的电信行业管理信息系统集成的应用方式,以期有效地解决如今电信行业管理信息系统集成难的问题,满足电信行业管理信息系统松散耦合、灵活集成的需求.     

临时支护条件下盾构吊出的设计与施工

对广州某地铁车站工程实例,通过对原方案进行优化设计,实现了盾构在临时支护条件下进站吊出,为今后类似工程提供借鉴和参考。     

冷弯薄壁型钢门式刚架蒙皮效应研究

采用ANSYS软件对冷弯薄壁型钢门式刚架的蒙皮效应作了探讨性研究.对比分析了无蒙皮门式刚架和有蒙皮门式刚架的顶点竖向位移与柱顶水平位移.计算结果表明,蒙皮效应对刚架整体竖向和水平位移都有很大的限制作用.设计时,可以考虑适当放松按平面刚架计算的刚架柱顶水平位移值,来考虑蒙皮效应.