公共图书馆虚拟参考咨询服务问题与对策

论文通过对我国公共图书馆的虚拟参考咨询服务现状的分析研究，揭示了目前存在的各种问题，并且提出了一些解决问题的建议和对策。     

西方公共借阅权概述

文章就西方公共借阅权的发展历程和各国公共借阅权制度的异同比较，简要介绍了西方公共借阅权的概况。     

技术和制度哪个更重要?--关于图书馆制度的思考

对图书馆发展来说,技术和制度两者都重要,但制度高于技术。图书馆制度包括宏观、中观和微观三个层面。当今中国图书馆建设水平的落后,其主要根源在于制度的落后。     

政府为什么不重视图书馆事业

分析和论述我国各级政府为什么不重视图书馆事业的多种可能原因。     

图绘新闻:信息可视化与编辑室内的理念冲突

文章通过对相关学术文献中关于可视化新闻生产的话语构成的检视,以及对瑞士五家新闻机构的可视化编辑的深度访谈,全面勾勒数字化新闻生产与传统新闻生产之间存在的理念冲突,以及这种冲突对于新闻业发展变迁路径的潜在影响.研究发现,可视化新闻生产逻辑将"真实"界定为再现层面上的操作性概念,主张将美学的维度纳入新闻专业主义体系,同时提出了重构新闻价值标准的要求,这对传统新闻理念的权威性构成了显而易见的挑战.文章进而提出可视化新闻生产所遵循的"科学-艺术"观念结构有可能导致整个社会公共空间和文化结构的变迁.     

The powerful image and the imagination of power: the ‘new visual turn’ of the CPC’s propaganda strategy since its 18th National Congress in 2012

This paper adopts the academic tool of discourse analysis to examine the ‘new visual turn’ of the Communist Party of China’s propaganda work since the 18th CPC National Congress when Xi Jinping was inaugurated as the leader of Chinese Communists. A thorough review of the new visual means the Party uses for photojournalism, TV news, animated cartoons and online promotional videos points to three developments markedly different from traditional discursive strategies: a full embrace of Confucian ethics, articulation of the Internet-based popular culture and subcultures, and an effort to fortify Xi’s personal authority as a political idol. The paper concludes that the ‘new visual turn’ of CPC propaganda after the 18th Party Congress suggests that the Communist discourse has evolved to a new stage where sophisticated manipulation of sleek technological tools substantiates a rigorous, dynamic CPC discursive system more at ease with itself and more powerful than ever in shaping the mainstream political culture in China.     

Solid-state intramolecular motions in continuous fibers driven by ambient humidity for fluorescent sensors

One striking feature of molecular rotors is their ability to change conformation with detectable optical signals through molecular motion when stimulated. However, due to the strong intermolecular interactions, synthetic molecular rotors have often relied on fluid environments. Here, we take advantage of the solid-state intramolecular motion of aggregation-induced emission (AIE) molecular rotors and one-dimensional fibers, developing highly sensitive optical fiber sensors that respond to ambient humidity rapidly and reversibly with observable chromatic fluorescence change. Moisture environments induce the swelling of the polymer fibers, activating intramolecular motions of AIE molecules to result in red-shifted fluorescence and linear response to ambient humidity. In this case, polymer fiber provides a process-friendly architecture and a physically tunable medium for the embedded AIE molecules to manipulate their fluorescence response characteristics. Assembly of sensor fibers could be built into hierarchical structures, which are adaptive to diverse-configuration for spatial-temporal humidity mapping, and suitable for device integration to build light-emitting sensors as well as touchless positioning interfaces for intelligence systems.     

数字图书馆的信息构成及其发布方式

数字图书馆不是一个机构，而是一个概念，它是一种环境，将收藏、服务、人结合起来以支持数据、信息和知识的产生、传播、利用、保管的全过程。“收藏”（collections）数据化是这一概念的核心内涵或本体，图书馆因而应最大限度地摆脱文献形式的束缚，直接对馆藏信息包括本馆通过网络所能获取的数字文献进行数字化处理，以及运用相关技术手段将所处理后的数字信息通过多种电子方式发布。     

无词典中英文混合术语抽取及算法研究

中英文混合术语可作为未登录词处理、加权处理和歧义消解等的辅助信息,并有助于提高中文信息处理的质量。依据长度递减与串频统计思想,本文提出了一种中英文混合术语的抽取方法。该方法不需要词典,不需要事先进行语料库的学习,不需要建立字索引,而是依靠统计信息,抽取出支持度大于等于阈值的中英文混合术语。该算法能够有效地抽取出文本中新涌现的通用词、专业术语及专有名词。实验显示该方法不受语料限制,能够快速、准确地进行中英文混合术语的抽取。     

微博信息可信度分析研究综述

简述微博信息可信度研究的背景和意义,并对微博信息可信度分析等相关概念进行界定;对微博信息可信度的研究成果进行梳理,指出这些研究的不足,并认为微博信息可信度分析的关键问题是微博信息特征的提取和可信度分析方法的设计;结合微博信息的特点及已有研究成果,指出微博信息可信度分析的核心技术包括自然语言处理、社会网络分析、机器学习与数据挖掘等;最后总结全文,对微博信息可信度分析的未来发展方向进行展望,为进一步研究提供参考。