寻医问药系统设计

此项目旨在建设一个为广大群众和职工提供健康咨询,疾病预防保健,寻医问药的健康平台。通过网络平台建设,打破传统就医限制,形成一个资源丰富,实时便捷,操作简便的健康医疗网络信息平台。系统注重职工健康,疾病预防,向职工传播丰富的医疗知识,促进其健康水平不断提高。     

An information push-delivery system design for personal information service on the Internet

As Web-related techniques and equipment grow, the Internet has become popular as a major channel for providing a wide variety of information. However, users face the serious problem of information overload when acquiring increasing amounts of information from the Internet. This problem is one of the most important issues in providing information services to meet users’ requirements in an electronic commerce environment. In this paper, we propose an information push-delivery system, which applies fuzzy information retrieval and fuzzy similarity measurement to avoid the information overload problem. This proposed system is helpful for users to acquire suitable information from the Internet. An empirical investigation of the proposed system is implemented in this study. The results show that the degree of satisfaction for the received information for all participants was as high as 71%, indicating that the proposed system can effectively provide correct and interesting information for users.     

进口铁矿信息系统的设计和实现

面对目前铁矿石纷繁复杂的国际贸易形势,我国尚缺乏有效的战略保护和协调机制,缺乏基础性的综合质量信息平台,在进口铁矿贸易中,我国常处于较为被动的地位,使国家经济利益得不到应有的保障、国内企业遭受巨大的损失。为此,开发进口铁矿石信息系统,通过全面收集、统计、整理和分析进口铁矿质量检验和贸易信息,为不同类型的用户提供功能完备的浏览和查询,满足不同层次的需求。     

项目管理信息系统的通用性设计方案研究

项目过程往往包含两个方面：项目管理过程和产品开发过程,尽管不同领域的产品开发过程千差万别,项目管理的活动却存在着一种通用性,文章以项目管理知识体系为依据,将管理信息系统与项目管理知识体系相融合,研究一种项目管理信息系统的通用性设计方案,为各领域的项目管理信息系统开发提供设计参考。     

青海省气象信息网络系统的设计与实现

论述了青海省气象信息网络系统的设计目标、设备选型、实现的方法、功能及应用效果分析等。     

The effectiveness of query-specific hierarchic clustering in information retrieval

Hierarchic document clustering has been widely applied to information retrieval (IR) on the grounds of its potential improved effectiveness over inverted file search (IFS). However, previous research has been inconclusive as to whether clustering does bring improvements. In this paper we take the view that if hierarchic clustering is applied to search results (query-specific clustering), then it has the potential to increase the retrieval effectiveness compared both to that of static clustering and of conventional IFS. We conducted a number of experiments using five document collections and four hierarchic clustering methods. Our results show that the effectiveness of query-specific clustering is indeed higher, and suggest that there is scope for its application to IR.     

土地规划协同管理信息系统的设计研究

随着当前土地利用总体规划调整完善工作的完成,采用地理信息系统和国土资源空间数据一体化等现代技术对历史和当前产生的土地利用规划成果数据进行管理,对国土资源管理部门传统的规划业务工作模式进行改造已成为大势所趋。文章以国土资源管理部门的土地规划业务工作为研究对象,介绍了基于异构空间数据集成和国土资源空间数据一体化技术,整合GIS和MIS开发技术的土地规划协同管理信息系统开发的设计及功能结构、数据库等方面的系统设计。     

System simplification and control system design: Applications of the two-step iterative algorithm of Shoji

A detailed appraisal of the usefulness of reduced order systems produced by the two-step iterative algorithm of Shoji, J. Franklin Inst., Vol. 310, pp. 155–188, 1980; J. Franklin Inst., Vol. 313, pp. 267-271, 1982, in control system design is presented. In this appraisal, application of the method to four systems is considered and the results compared with those obtained by Marshall Int. J. Control, Vol. 31, pp. 677–690, 1980. Since two of the systems contain complex poles it was found necessary to adapt the Shoji method accordingly.     

New approach to the problem of information system effectiveness evaluation

The object of this paper is to present a new kind of approach to the problem of information system effectiveness evaluation as based on the theory of fuzzy sets. On the basis of this theory, the concepts of relevance and pertinence, which are the basic concepts used in determining the indices of information system effectiveness evaluation, have been defined. Assuming that in evaluating the effectiveness of information systems, one should consider separately the problem of quality evaluation of the transformation of the contents of documents and information requests into their search patterns and the problem of quality evaluation of the process of profile control of a document set of the information system, definitions have been given of parameters of quality evaluation of the transformation of the contents of documents and information requests into their search patterns with regard to a given information request as well as of parameters of quality evaluation of the process with regard to the whole set of information requests under examination. Besides, parameters of quality evaluation of the process of profile control of a document set of the information system have been defined. The parameters of effectiveness evaluation of information systems put forward in this paper take account of the fact that both evaluation of the relevance and evaluation of the pertinence of documents are of a continuous character.     

信息技术在组织设计中的角色

讨论了在现代信息技术条件下可供选择的一系列信息技术变量,利用这些信息技术设计变量,提出了4种组织模型发展趋势：虚拟型、契约型、传统型和纵向一体化型,并进一步讨论了应用信息技术进行组织变革将会面临的潜在困难。     

基于“信息管税”的广西国税网络发票管理系统设计

对于小规模纳税人的税收征管工作,国家税务机关目前采用的是传统的“以票控税”的举措,但由于广西区现行普通发票的防伪手段落后、设计式样不尽合理、制假贩假用假泛滥、拒开或违章开具发票的情况大量存在,已经大大削弱了发票监控税源、稳固税基的作用,发票管理成为了税收征管的一个较为薄弱的环节。文章结合广西区国税系统普通发票管理的实际进行网络发票管理研究。     

On the value of information in system design: A framework for understanding and aiding designers

Computer-based decision support systems for designers are considered. The nature of system design is discussed in terms of alternative philosophies, processes and methods. The design task is characterized as a form of problem solving, which leads to discussion of types of design problem and designer/problem-solver, as well as training of designers/problem-solvers. This general background serves as a basis for analyzing information requirements for design. The value of information is defined as having three attributes: (1) reduction of uncertainty, (2) task relevance and (3) appropriateness of form. These attributes, in conjunction with characterizations of stages/tasks of design and approaches to stages/tasks, are used to determine information requirements and the consequent nature of information seeking. The results of this requirements analysis are employed as a basis for consideration of computer-aided information seeking. Types of information/aiding discussed include: facts, fantasies and feedback, as well as adaptive aiding and training, all of which are espoused as the key elements of flexible systems for computer-aided design and computer-aided engineering.     

Robust state-feedback control design for active suspension system with time-varying input delay and wheelbase preview information

This paper develops a robust state-feedback controller for active suspension system with time-varying input delay and wheelbase preview information in the presence of the parameter uncertainties. By employing system augmentation technique, a multi-objective control optimization model is first established and then this controller design is converted to a static full-state feedback controller design with robust H_∞ and generalized H₂ performance, wherein the model-dependent control gain is evaluated by transforming the related nonlinear matrix inequalities into their corresponding linear matrix inequality forms based on Lyapunov theory, and then LMI (Linear-Matrix-Inequality) technique is applied to solve and obtain the desired controller. A numerical simulation case is finally provided to reveal the effectiveness and advantages of the proposed controller.     

基于Web的高校科研管理信息系统的分析与设计

本文以深圳大学管理学院科研信息系统为例，主要探讨了基于Web的高校科研管理信息系统的研究背景、系统目标、功能设计、系统结构、关键技术、数据库设计、运行环境和应用价值。该系统采用B／S体系结构，运用ASP技术，依托后台数据库，通过Internet对科研信息进行动态发布、实时更新、快捷查询和充分共享，从而有利于实现科研管理的现代化、规范化和高效化。     

用Excel2003构建高校学籍管理信息系统的新思路

本文通过Excel2003工作簿内嵌VBA代码构建高校学籍管理信息系统,用一个工作簿能够实现学籍信息的分散管理、迅速汇总、统计分析的功能,有分级管理数据,安全性高等特点,大大提高了目前我校的学籍信息管理的自动化和信息化水平。文中还公布了一些核心功能的源代码,方便共享和交流。     

Decision-oriented frameworks for management information systems design

Despite the rapid growth in the use of computers in organizations, few of the resulting systems have had a significant impact on the way in which management makes decisions. Frameworks are needed which aid in understanding the structure of management information systems, toward providing focus and improving the effectiveness of systems efforts.This paper surveys recent conceptual and empirical work related to development of decision-oriented frameworks for management information systems design, particularly as related to the improving the management of organizations.     

医院住院管理信息系统的分析与设计

结合当前医院信息化管理进程,对医院的业务系统进行深入分析研究,归纳医院住院管理系统的业务流程,提出医院住院系统的设计思想,从功能模块、关键技术等角度给出医院住院系统的具体实现。     

Developing organized information displays for voluminous works: a study of user clustering behavior

This paper investigates the ways in which people group or categorize documents associated with a voluminous work to guide the construction of organized displays for information retrieval systems (IRSs). Fifty participants completed an unconstrained sorting task in which they were asked to sort into groups 47 documents associated with the voluminous work A Christmas Carol, by Charles Dickens. Participants were asked to group documents based on how similar they were to each other and such that the groups would help them to remember how to find them at a later time. Data collected from the sorting task were summarized using cluster analysis, employed to discover common groupings created by participants. Groupings discovered frequently shared physical format, language, and audience attributes.     

Mathematical models of information system use

This report presents the results from a study of mathematical models relating to the usage of information systems. For each of four models, the papers developed during the study provide three types of analyses: reviews of the literature relevant to the model, analytical studies, and tests of the models with data drawn from specific operational situations. (1) The Cobb-Douglas model: x₀ = ax₁^bx₂^(1?b).This classic production model, normally interpreted as applying to the relationship between production, labor, and capital, is applied to a number of information related contexts. These include specifically the performance of libraries, both public and academic, and the use of information resources by the nation's industry. The results confirm not only the utility of the Cobb-Douglas model in evaluation of the use of information resources, but demonstrate the extent to which those resources currently are being used at significantly less than optimum levels. (2) Mixture of Poissons:

$\text{χ}{}_0\text{=}\text{∑}\text{i=0}\text{n}\text{i}\text{∑}\text{j=0}\text{p}\text{n}{}_{\mathrm{j}}\text{e}{}^{\mathrm{mj}}\text{(m}{}_{\mathrm{j}}\text{)′/i!}$

where x₀ is the usage and (n_j,m_j),j = 0 to p, are the p + 1 components of the distribution. This model of heterogeneity is applied to the usage of library materials and of thesaurus terms. In each case, both the applicability and the analytical value of the model are demonstrated. (3) Inverse effects of distance: x = a e^?md if c(d) = rdx = ad^?m if c(d) = r log(d).These two models reflect different inverse effects of distance, the choice depending upon the cost of transportation. If the cost,c(d), is linear, the usage is inverse exponential; if logarithmic, the usage is inverse power. The literature that discusses the relationship between usage of facilities and the distance from them is reviewed. The models are tested with data from the usage of the Los Angeles Public Library, both Central Library and branches, based on a survey of 3662 users. (4) Weighted entropy:

$\text{S(x}{}_1\text{,x}{}_2\text{,...,x}{}_{\mathrm{n}}\text{)= -}\text{∑}\text{i=1}\text{n}\text{r(x}{}_{\mathrm{i}}\text{P(x}{}_{\mathrm{i}}\text{)}\text{log}\text{(p(x}{}_{\mathrm{i}}\text{)).}$

This generalization of the “entropy measure of information” is designed to accommodate the effects of “relevancy”, as measured by r(x), upon the performance of information retrieval systems. The relevant literature is reviewed and the application to retrieval systems is considered.