AN EMPIRICAL ASSESSMENT OF COMPUTER-ASSISTED DECISION ANALYSIS*

Decision analysis tools often are used in semistructured and ill-structured situations. While some researchers have argued that computerized decision analysis programs may improve decision quality in such situations, research support for this assertion is weak. In this laboratory study, business students used a computerized decision-analysis program with short strategic-management cases to prepare decision reports. Independent raters' perceptions of aided and unaided decision performance were contrasted, attitudes of students toward the program were assessed, individual differences were correlated with attitudes, and the program's impact on students' perceptions of their decision processes and performance was examined. Student attitudes toward the computerized aid were favorable, and individual differences in reactions generally were as predicted. However, the program did not improve the independent ratings of students' decision reports and recommendations. These findings suggest that computerized decision aids should be adopted cautiously. If such aids result in positive user affect and heightened decision confidence without corresponding improvements in decision quality, they may be dysfunctional. Rigorous research methodologies which incorporate independent evaluations of analyses and decisions are recommended for use in future research on computerized decision-analysis programs.     

项目法施工成本辅助管理系统的开发研究

以项目法施工为基础,结合公路工程施工的实际情况,对项目法施工成本辅助管理系统进行了研究开发,通过规范化、标准化的数据录入和系统化的分析处理,将资源消耗管理、成本管理和企业效益评价等工程项目管理中的关键环节联成一个有机的管理系统,如实反映企业的管理水平,实现了工程项目施工成本的动态化和智能化管理。     

An Application of Markov Chain Analysis to the Game of Squash*

If the score in a squash game is tied late in the game, one player has a choice of how many additional points (from a prespecified set of possibilities) are to be played to determine the winner. This paper constructs a Markov chain model of the situation and solves for the optimal strategy. Expressions for the optimal strategy are obtained with a symbolic algebra computer package. Results are given for both international and American scoring systems. The model and analysis are very suitable for educational purposes. The resulting Markov chain is small enough that it can be easily presented in a classroom setting, yet the model is sufficiently complex that algebraic manipulation is nearly hopeless. The final results illustrate the power of the combination of mathematical and computer modeling applied to a problem of practical interest.     

An E-learning outreach program for public schools: Findings and lessons learned based on a pilot program in Makati City and Cabuyao City,Laguna, Philippines

The E-Learning Outreach Program (ELOP) is a multisectoral, collaborative, and commitment-driven action research that focuses on providing relevant and useful computer and Internet literacy short courses for public elementary students. This study presents the critical action plans of setting up a pilot e-Learning station in Hen. Pio del Pilar Elementary School in Makati City and in Pulo Elementary School in Cabuyao City, Laguna, Philippines. The school’s computer laboratory was converted to an E-Learning station with additional devices and technical support from De La Salle University (DLSU). The study aims to account for a process-based heuristic approach in laying down the different phases of the program, specifically to: (1) coordinate and orient parents, pupils, teachers and school administrators, (2) set-up an e-Learning environment (3) design and write course modules (4) assess learning skills and experience of pupils, and (5) evaluate the program based on research team’s observation and results of the focus group discussion (FGD) with teachers and student-participants. In Pulo Elementary School, a pretest and posttests were conducted with results showing that the program has improved participants’ e-Learning knowledge and skills except for advance skills in hardware utilization. The participants also showed a strong positive attitude towards the ELOP.     

On algorithmic construction of maximin distance designs

Maximin distance designs are useful for conducting expensive computer experiments. In this article, we compare some global optimization algorithms for constructing such designs. We also introduce several related space-filling designs, including nested maximin distance designs, sliced maximin distance designs, and general maximin distance designs with better projection properties. These designs possess more flexible structures than their analogs in the literature. Examples of these designs constructed by the algorithms are presented.     

关于如何培养高等师范学生信息素养的探索

信息技术在师范教育中是现代教育技术内容的重要部分。高等师范院校的毕业生,将在今后各学科教学中运用信息技术,发挥信息技术在教育中的作用,许多毕业生还将直接承担中、小学信息技术课程的教学任务。为此,高等师范生必须加强信息技术学习,形成良好的信息素养。     

Windows 2000 Server典型实验在VMware中的实现

Windows 2000 Server的实验需要专门的网络实验室,从而需要很大的设备投入。随着虚拟仿真技术在计算机网络中的应用,可以利用虚拟机软件构造虚拟计算机网络实验平台。VMware是一个功能强大的虚拟机软件,本文介绍VMware环境下Windows2000 Server的多个典型实验的实现原理与方法。     

应用型大学《大学计算机基础》课程教学模式探讨

介绍了《大学计算机基础》课程的基本教学要求和大学新生信息技术基础的差异性,提出在应用型大学内根据国家计算机等级考试大纲逐步引入该课程的教学内容,并充分建设合适的网络平台,帮助学生自学该课程的理论内容。     

论计算机信息及计算机信息交易——美国《统一计算机信息交易法》与美国《统一商法典》相关概念和规则的比较

1930年代,哥伦比亚大学卢埃林认识到,工业革命使工业产品成为社会财富的主要载体,需要新的合同法规则以适应新的经济.其结果就是美国<统一商法典>第2编的制定,该法的核心是"货物买卖".1990年代,信息革命的产生及深入发展,使信息和信息服务成为经济的核心,美国<统一计算机信息交易法>应运而生.该法的核心是"计算机信息许可".尽管存在对该法的诸多批评,该法仍具革命意义,并已在美国马里兰州和弗吉尼亚州实施近十年.我国应尽快建立以信息为标的交易法律制度,对信息进行明确的界定,并以此为基础,建立大众市场许可、信息担保、电子自助等制度.     

Modeling Synergy and Learning under Multiple Advanced Manufacturing Technologies

The advent of the wide variety of new, highly integrated, advanced manufacturing technologies available for acquisition by a firm's managers has brought to light an accompanying set of unexpected issues. These issues include expectations for the benefits and costs of these technologies, determining the appropriate order of implementation and finding a way to justify acquisition when many of the benefits are a function of the technology's learning and synergistic effects on other operations and technologies. We present here a model that captures the interaction effects of these highly integrated technologies and discuss the data requirements for application of the construct. We then illustrate the model's workings with a number of multitechnology examples and show the danger of ignoring the synergistic and learning effects of these technologies when considering their acquisition.