电子选举：理论、实践与未来

1.引言当今社会,几乎我们身边的每一件事都可以被计算机实现,尤其是随着近几年来WWW的几乎爆炸式的发展,通讯和网络技术的突飞猛进,我们的生活和工作都出现一种不可避免的趋势——无纸化、自动化。选举,作为社会公民所享有的一项基本权利,它的方式本身也不可能在这样一个日新月异的社会环境中停滞不前,因此,电子选举应运而生。电子投票的发展从它在1884年第一次被人提出到现在这近百年并不是一帆风顺的,其主要原因是一个电子投票系统的安全性和公平性是很难得到保证的。直到密码学突破军事应用的限制,在各领域得到广泛的应用以及密码学本身的飞速发展,电子选举才有了可喜的进展。     

景观设计中生态文化理论的实践运用

城市化快速发展使城市空间日益扩张,与此同时生态系统也遭受着严重破坏,这就要求在景观设计中去关注生态关系,合理利用生态文化,为可持续发展创造有利的条件。在景观设计理论研究中对于造园艺术、建筑设计、城市规划等问题的认识上,提倡生态学的思想与观点,构建新型的生态文化设计理念,将是我们科学地认识和处理人地关系的全新课题。如何把这一理念运用到景观设计中去寻求自身的平衡,这将是人们对自然认识的进步,也是人类对自身认识的进步。     

博士CAD系统界面设计理论及实践

论述了图形界面设计的一般原则,并提出了针对博士CAD系统的特点所用的特殊原则.设计及实践了一个完整的基于事件驱动的博士CAD系统界面,并在此基础上进一步论述了如何具体运用这些原则设计美观大方及更人性化的图形界面的技巧.这对CAD系统开发中的界面设计具有一定的理论指导和实践意义.     

博士CAD系统界面设计理论及实践

论述了图形界面设计的一般原则,并提出了针对博士CAD系统的特点所用的特殊原则。设计及实践了一个完整的基于事件驱动的博士CAD系统界面,并在此基础上进一步论述了如何具体运用这些原则设计美观大方及更人性化的图形界面的技巧。这对CAD系统开发中的界面设计具有一定的理论指导和实践意义。     

软件开发中的数据库设计的理论和实践

数据库设计是软件开发中最重要的内容之一.本文通过实例,详细介绍了数据库设计的步骤.     

Face Hallucination: Theory and Practice

In this paper, we study face hallucination, or synthesizing a high-resolution face image from an input low-resolution image, with the help of a large collection of other high-resolution face images. Our theoretical contribution is a two-step statistical modeling approach that integrates both a global parametric model and a local nonparametric model. At the first step, we derive a global linear model to learn the relationship between the high-resolution face images and their smoothed and down-sampled lower resolution ones. At the second step, we model the residue between an original high-resolution image and the reconstructed high-resolution image after applying the learned linear model by a patch-based non-parametric Markov network to capture the high-frequency content. By integrating both global and local models, we can generate photorealistic face images. A practical contribution is a robust warping algorithm to align the low-resolution face images to obtain good hallucination results. The effectiveness of our approach is demonstrated by extensive experiments generating high-quality hallucinated face images from low-resolution input with no manual alignment.     

软件开发中数据库设计理论实践研究

作为一门应用性很强的学科，数据库技术是目前在软件开发中应用越来广泛，软件开发中数据库设计理论实践研究也越来越受到业界人士的注重。本文就这一问题主要对数据库设计及设计理论进行了阐述，介绍了数据库设计的几个原则，并对数据库设计步骤及实例进行了一定的分析。     

“数据库与程序设计”教学研究与实践

VFP是一种用来进行管理信息系统开发的常用工具,是高等学校计算机专业以及非计算机专业的一门主干课。本文结合VFP课程的主要教学内容,分析了该课程的主要特点以及传统教学中存在的主要问题,提出任务驱动教学法是适合VFP课程教学、避免现有教学方式中多种弊端的教学方法,通过探索实践取得了较好的教学效果。     

Commentary: Usability in Theory and Practice

This commentary discusses Noam Tractinsky’s article “The Usability Construct: A Dead End?” (Human–Computer Interaction, 2017). That article debates the conceptual qualities of “usability” as a key concept in human–computer interaction. It provides two main conclusions: (a) the usefulness of the concept of “usability” to human–computer interaction theories has been limited and (b) a notion of “construct” is useful for identifying weaknesses of the concept of “usability” and thereby provides reasons for its limited usefulness. The article is interesting and provides an in-depth analysis of the concept of usability. Unfortunately, the use of this analysis is not convincing. Instead, redefinition of “usability” should be based on a constructive approach.     

浅析软件开发中的数据库设计的理论和实践

本文对软件开发中的数据库设计理论与实践进行了简单分析。首先,简单介绍了软件开发中的数据库设计的重要性;其次,分析了软件开发中的数据库设计的理论;最后,结合实例,分析了软件开发中的数据库设计的实践。     

Computer-mediated Texts and Textuality: Theory and Practice

The majority of humanities computingprojects within the discipline of literaturehave been conceived more as digital librariesthan monographs which utilise the medium as asite of interpretation. The impetus to conceiveelectronic research in this way comes from theunderlying philosophy of texts and textualityimplicit in SGML and its instantiation for thehumanities, the TEI, which was conceived as ``amarkup system intended for representing alreadyexisting literary texts'. This article exploresthe most common theories used to conceiveelectronic research in literature, such ashypertext theory, OCHO (Ordered Hierarchy ofContent Objects), and Jerome J. McGann's``noninformational' forms of textuality. It alsoargues that as our understanding of electronictexts and textuality deepens, and as advancesin technology progresses, other theories, suchas Reception Theory and Versioning, may well beadapted to serve as a theoretical basis forconceiving research more akin to an electronicmonograph than a digital library.     

Querying Big Data: Bridging Theory and Practice

Big data introduces challenges to query answering, from theory to practice. A number of questions arise. What queries are ＂tractable＂ on big data？ How can we make big data ＂small＂ so that it is feasible to find exact query answers？When exact answers are beyond reach in practice, what approximation theory can help us strike a balance between the quality of approximate query answers and the costs of computing such answers？ To get sensible query answers in big data,what else do we necessarily do in addition to coping with the size of the data？ This position paper aims to provide an overview of recent advances in the study of querying big data. We propose approaches to tackling these challenging issues,and identify open problems for future research.     

基于Java的P2P理论、应用和实践

以“六度分隔理论”和“150原则”做为P2P社会化基础理论和群组构建原则,探讨P2P在即时通信、文件分享和网络流媒体等10个领域的应用和前景,并使用Java语言基于JXTA实现了一个P2P即时通信系统原型,期望为现有P2P产品开发者、经营者和准备从事这一行业的单位和个人提供一定前瞻性的实施建议和战略指导。     

Recent Developments in the Theory and Practice of Testable Logic Design*

This paper surveys and summarizes the major contributions to the theory and practice of testable logic design. The first part, dealing with the theoretical procedures, discusses the design of easily testable combinational, sequential, and iterative networks, illustrating major techniques with common running examples. The second part comments on the more practical aspects such as board layout, test point siting, and other facilities for easing the problems associated with testing.