图书馆管理工作与创新服务

图书馆是进行思想道德教育,爱国主义传统教育的重要阵地。作为知识的收藏者、储存者、承载者、中转者和传播者,在当今知识就是力量的社会中起着举足轻重的作用。随着图书馆如雨后春笋般出现,图书馆的管理和服务事务变得越来越繁杂,科技日新月异,社会跨步向前,传统的图书馆管理和服务模式已经不能适应社会发展的需求,即满足不了现在人们对图书馆的需要;为了不断满足人们对图书馆的新要求,同时也是作为为思想教育和科研工作提供服务的信息机构,这就要充分利用现有的技术信息、图书、报刊资料等这一既有的优势,开展形式多样的管理和服务模式。在此,结合平时工作,对图书管理工作与创新服务谈几点体会。     

传统录音机和数码录音笔在信道中的差异

语音是重要的法庭证据。随着科学技术的进步,各种各样的语音采集设备出现在人们的日常生活中。从传统的录音机到数字录音笔、手机、MP3,语音采集经历了由模拟信号到数字信号的转换过程。不同的采集设备和方法会造成语音的信道差异。传递语音信号的通道,如：传统录音机和数码录音笔由于各自的频率响应性能不同,对信号施加的影响也不同。传统录音机传递的是连续变化的模拟信号,数码录音笔传递的则是以有限个＂1＂和＂0＂的代码组合成为信息的数字信号,两者是现在普遍应用的两种信号模式。研究表明：信号通道对于语音识别,特别是自动语音识别的影响是明显的,但是对于图谱视觉检验的影响、影响的程度如何还尚待进一步的深入研究。     

Speech Watermarking: An Approach for the Forensic Analysis of Digital Telephonic Recordings*

Abstract: In this article, the authors discuss the problem of forensic authentication of digital audio recordings. Although forensic audio has been addressed in several articles, the existing approaches are focused on analog magnetic recordings, which are less prevalent because of the large amount of digital recorders available on the market (optical, solid state, hard disks, etc.). An approach based on digital signal processing that consists of spread spectrum techniques for speech watermarking is presented. This approach presents the advantage that the authentication is based on the signal itself rather than the recording format. Thus, it is valid for usual recording devices in police‐controlled telephone intercepts. In addition, our proposal allows for the introduction of relevant information such as the recording date and time and all the relevant data (this is not always possible with classical systems). Our experimental results reveal that the speech watermarking procedure does not interfere in a significant way with the posterior forensic speaker identification.     

浅谈数字图像真实性的检验鉴定

随着IT技术的迅速发展,数字图像的采集越来越方便,但通过数码设备形成的数字周像非常容易被篡改。当前国内外均存在照片伪造现象,因案件性质不同,影响的范围也有所差异,但共同的目的都是为了私欲而混淆是非。这就要求我们必须不断提高检验鉴定的水平,还原事实真相。     

Web Content Management Systems: An Analysis of Forensic Investigatory Challenges

With an increase in the creation and maintenance of personal websites, web content management systems are now frequently utilized. Such systems offer a low cost and simple solution for those seeking to develop an online presence, and subsequently, a platform from which reported defamatory content, abuse, and copyright infringement has been witnessed. This article provides an introductory forensic analysis of the three current most popular web content management systems available, WordPress, Drupal, and Joomla! Test platforms have been created, and their site structures have been examined to provide guidance for forensic practitioners facing investigations of this type. Result's document available metadata for establishing site ownership, user interactions, and stored content following analysis of artifacts including Wordpress's wp_users, and wp_comments tables, Drupal's “watchdog” records, and Joomla!'s _users, and _content tables. Finally, investigatory limitations documenting the difficulties of investigating WCMS usage are noted, and analysis recommendations are offered.     

数字政府建设中的政务服务

本文基于新公共管理和新公共服务两大理论的学理分析,剖析了数字政府建设中政务服务效能提升的制约瓶颈并提供了相应的对策建议.分析结果表明:分散的政务服务抑制了服务效能、异向的政务数据影响了业务协同、失衡的供给能力制约了发展水平.研究结论认为,优化政务服务基础平台、完善政务信息共享机制、提高政务服务供给能力是数字政府建设中政...     

Usability and Digital Inclusion: Standards and Guidelines

This article aims at discussing e-government website usability in relation to concerns about digital inclusion. E-government web design should consider all aspects of usability, including those that make it more accessible to all. Traditional concerns of social exclusion are being superseded by fears that lack of digital competence and information literacy may result in dangerous digital exclusion. Usability is considered as a way to address this exclusion and should therefore incorporate inclusion and accessibility guidelines. This article makes an explicit link between usability guidelines and digital inclusion and reports on a survey of local government web presence in Portugal.     

COOPERATIVES FOR THE PERFORMING ARTS: A PROSPECTUS

The author describes research that addresses the problem of organizational change associated with the use of new information and communication technologies. The author focuses on the change processes associated with the use of the World Wide Web by cultural heritage organizations: archives, galleries, libraries, and museums. This research note outlines the research problem and the theoretical perspectives and research methodologies to be used in the research.     

Digital Technology and Cultural Heritage Sites in the City of Tshwane

This article examines the feasibility and sustainability of digital technology to promote cultural heritage sites in the City of Tshwane (CoT), South Africa. Post-Apartheid development imperatives compel the CoT to construct new cultural sites. Over time, the number of visitors to the places declined. The CoT introduced digital technology to collect and repackage information on some of the cultural edifices to add value to them. However, the absence of heritage/digital technology impact analysis and cultural policy in the CoT could compromise the program. The article recommends further introduction of important facilities and services in the sites to increase public interest.