刍议信息时代计算机技术对设计教育的影响

从多角度出发论述信息时代计算机技术对设计教育的影响,包括对设计本身的影响以及对设计教育的学科建设、教学方法、教育普及等的影响.     

《计算机组成原理》课程教学改革的探讨

针对《计算机组成原理》这门课程的特性及其在教与学方面的难点 ,应认真进行教学内容、教学方法的改革 ,以使教学得到较满意的效果     

基于差影技术的乳腺微钙化点检测方法

目的协助医生进行诊断,避免医生因大量阅片引起疲劳而造成误诊,提高乳腺癌早期诊断的效率和准确率。方法先对乳腺钼靶 X 线照片数字化；再对数字化的乳腺影像归一化；然后从中选取感兴趣区域；最后利用差影技术检测出微钙化点并标示于影像中。结果对于16幅(其中13幅含有微钙化)经过病理解剖确诊的乳腺钼靶片进行实验,利用本文方法共检测出14幅钙化图像。结论该方法检出率高。微钙化点定位准确,值得进一步研究。     

民族文字古籍在现代化条件下的整理与利用

在中华民族源远流长的民族文化历史长河中 ,有不可缺少的少数民族的古代文化遗产 ,在这些少数民族的文化典籍中 ,同样蕴藏着与现代生活息息相通的东西 ,汉文古籍整理与民族文字古籍整理之比较 ;如何利用现代科技手段整理民族古籍 ,这包括编制各种索引 ,校勘 ,今译 ,注释。整理民族文字古籍是一项艰巨而光荣的任务。     

计算机集成制造与成组技术

成组技术(GT)和计算机集成制造(CIM)是两种改变传统的机械制违中多品种、小批量制造企业落后面貌的先进技术和方法。本文探讨了这两种技术之间的关系,着重说明以下问题:GT通过对系统的简化而成为CIM的基础;以CIM思想为指导开发GT系统,不仅可取得较好的近期效益,而且随着企业计算机应用水平的提高,可在GT系统的基础上建立起CIM系统。本文最后对一个实际工厂目前正在实施的GT系统和正在规划的CIM系统的关系作了探讨。     

电影艺术的"最终幻想"与人类科技进步

电影是科技进步的产物,电影技术的革新是科技进步的结果。电脑特效只能作为一种制作电影的辅助手段,其意义在于完善视觉效果,创造“银幕奇观”。     

在本科平台上打造培正品牌——培养能力型计算机人才 实施模块化教学改革

本文实事求是地全面总结了该系近年来的经验,从实际出发,明确地提出了"培养能力型计算机人才,实施模块化教学改革"的方向,实现在本科平台上打造计算机专业的"培正品牌"的目标。     

eHealth recruitment challenges

Little is known about effective eHealth recruitment methods. This paper presents recruitment challenges associated with enrolling African-American girls aged 8–10 years in an eHealth obesity prevention program, their effect on the recruitment plan, and potential implications for eHealth research.Although the initial recruitment strategy was literature-informed, it failed to enroll the desired number of girls within a reasonable time period. Therefore, the recruitment strategy was reformulated to incorporate principles of social marketing and traditional marketing techniques. The resulting plan included both targeted, highly specific strategies (e.g., selected churches), and more broad-based approaches (e.g., media exposure, mass mailings, radio advertisements).The revised plan enabled recruitment goals to be attained. Media appeared to be particularly effective at reaching the intended audience. Future research should identify the most effective recruitment strategies for reaching potential eHealth audiences.     

A Bayesian Meta-Modeling Approach for Gaussian Stochastic Process Models Using a Non Informative Prior

In this article, an efficient Bayesian meta-modeling approach is proposed for Gaussian stochastic process models in computer experiments. Different prior densities and particularly, a non informative hyper prior have been employed on the parameters involved in the correlation matrix. And the estimation of related parameters is obtained by the expectation-maximization algorithm. Compared with the recent work of Li and Sudjianto (2005 Li , R. , Sudjianto , A. ( 2005 ). Analysis of computer experiments using penalized likelihood in Kriging models . Technometrics 47 : 111 – 120 .[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]), the proposed approach is not only of higher prediction accuracy but also of lower computational cost, due to the utilization of the non informative prior and the absence of tuning parameters. Experimental results demonstrate that our approach yields state-of-the-art performance.     

Semiparametric Smooth Coefficient Stochastic Frontier Model With Panel Data

ABSTRACT

We investigate the semiparametric smooth coefficient stochastic frontier model for panel data in which the distribution of the composite error term is assumed to be of known form but depends on some environmental variables. We propose multi-step estimators for the smooth coefficient functions as well as the parameters of the distribution of the composite error term and obtain their asymptotic properties. The Monte Carlo study demonstrates that the proposed estimators perform well in finite samples. We also consider an application and perform model specification test, construct confidence intervals, and estimate efficiency scores that depend on some environmental variables. The application uses a panel data on 451 large U.S. firms to explore the effects of computerization on productivity. Results show that two popular parametric models used in the stochastic frontier literature are likely to be misspecified. Compared with the parametric estimates, our semiparametric model shows a positive and larger overall effect of computer capital on the productivity. The efficiency levels, however, were not much different among the models. Supplementary materials for this article are available online.