FLASH模拟教学浅析

开展FLASH模拟教学是培养技能应用型人才的基本途径,这种教学模式要求针对FLASH的课程特征作好课程定位,主要采用模拟情境的教学方法,同时构建完善的评价体系。     

Dealing with big data: comparing dimension reduction and shrinkage regression methods

In the past decades, the number of variables explaining observations in different practical applications increased gradually. This has led to heavy computational tasks, despite of widely using provisional variable selection methods in data processing. Therefore, more methodological techniques have appeared to reduce the number of explanatory variables without losing much of the information. In these techniques, two distinct approaches are apparent: ‘shrinkage regression’ and ‘sufficient dimension reduction’. Surprisingly, there has not been any communication or comparison between these two methodological categories, and it is not clear when each of these two approaches are appropriate. In this paper, we fill some of this gap by first reviewing each category in brief, paying special attention to the most commonly used methods in each category. We then compare commonly used methods from both categories based on their accuracy, computation time, and their ability to select effective variables. A simulation study on the performance of the methods in each category is generated as well. The selected methods are concurrently tested on two sets of real data which allows us to recommend conditions under which one approach is more appropriate to be applied to high-dimensional data.     

基于GSMSMS的智能公交系统设计

城市交通的智能管理是对提高城市的综合管理水平起到至关重要的作用,采用GSMSMS的智能公交管理系统,可根据交通状况适时的对公交车辆进行调度,并通过站点端LCD显示屏及时准确地向乘客提供下一班车辆的预计到达时间和各种路况信息。对提高公交的运输效率有显著效果。     

FLASH软件应用基础知识初探

作为一门新兴的动画制作工具,FLASH动画堪称技术和艺术的完美结合。FLASH动画简单易用,并且体积比较小。目前使用FLASH制作的动画、MTV、网站、游戏等层出不穷。以下我们就共同来了解下FLASH软件的基础知识。