共查询到20条相似文献，搜索用时 62 毫秒
1.
【目的】 科学出版物的语义化过程中产生了大量的语义数据,分析这些语义数据的特征可以为语义出版实践提供参考和借鉴。【方法】 通过收集目前常用的典型科学出版物语义数据,多角度分析这些数据集的类型、组成要素、生成流程及其支持的应用系统功能,总结这些语义数据在开发、开放、发布中的共性。【结果】 目前主流的科学出版物语义数据集具有相似的数据开发与组织流程,偏向于自然科学领域,具有不同的组织粒度及应用特点。【结论】 科学出版物语义数据的生产与应用仍面临诸多挑战,需要在数据的规范使用、数据本身的质量以及基于这些数据的服务上予以重视。 相似文献
2.
【目的】梳理国内外语义出版的理论研究进展,以厘清下一步语义出版的理论研究方向。【方法】 围绕语义出版的对象范畴、表现形式、实现方法、价值功效等理论要素对中外文献进行统计、对比和综合分析,总结现有理论研究的共性特征及其中存在的问题。【结果】 语义出版的研究对象从以学术期刊为载体的论文资源,扩展至图书、学位论文等形式的文献型学术资源,乃至数据型、媒体型、工具型学术资源;表现形式侧重于不同资料、事件、人物、术语、记录等实体对象的抽取、链接和集成,构建科学知识的语义关系及其构成的知识网络;实现方法涉及语义出版框架模型、语义标准、语义技术、语义工具、语义描述等;具有知识价值、商业价值和产业价值。【结论】 理论研究层面的语义出版在概念界定、方法适用性、服务体系等方面还需进一步探讨。 相似文献
3.
【目的/意义】突发事件新闻具有连续性特征,现存的语义模型无法很好地表示这一特征,通过构建突发事
件新闻语义模型可以实现对这些连续性信息的深层次语义描述和利用。【方法/过程】本文根据由表及里的建模思
维,构建了一个突发事件新闻深层次语义描述本体模型。该模型分为元数据和内容语义两部分,内容语义部分以
事件为起点、以连续性情景和动作为核心。在对突发事件新闻案例进行语义描述的基础上,实现了语义检索、语义
推理、语义数据可视化分析等应用。【结果/结论】通过语义标注和应用实验,验证了该模型的可用性。【创新/局限】本
文提出的突发事件新闻本体模型,较好地解决了突发事件新闻连续性信息的语义标注问题。 相似文献
4.
【目的】通过对中国科技期刊语义出版中编辑活动变化的预测,旨在使传统科技期刊编辑了解行业趋势,把握努力方向。【方法】 采用文献分析法,并结合成功案例,在研究当前中国科技期刊语义出版的发展方向的基础上,探讨编辑活动变化趋势。【结果】 出版信息平台呈现智能化,数字出版市场服务由“推”转变为“拉”,中国科技期刊将以学科为基础聚类。其发展会对编辑活动产生较大影响：需要进行期刊信息的语义处理,分析作者（读者）“偏好库”,加强与用户的互动,结合全媒体技术增强读者的阅读体验等。【结论】 语义出版对科技期刊编辑活动的效率和专业性提出更高的要求,除了传统的编校、数字出版平台的操作使用外,也会有新的工作内容出现。作为中国科技期刊的编辑人员有必要认识其发展趋势,从而在各个方面进行逐步调整。 相似文献
5.
微出版及其应用探析 总被引：1，自引：0，他引：1
本文对语义出版中的一种代表性出版模式——微出版（Micropublication）进行了介绍和分析。首先介绍了微出版物的概念及其本体;然后对微出版的应用现状进行述评;最后,尝试将微出版应用于心理学领域,以一篇心理学科学文献为例对其利用微出版模型进行语义化描述,并在此基础上对微出版的应用特点进行了分析。研究结果表明：微出版模型是一种以论证为基础,对科学文献中以文献结论为论点,以陈述、数据、方法等作为证据的论证过程进行语义化表示的语义出版模型,但微出版模型无法表示对科学文献内的具体组块,需要结合其他概念模型实现对科学文献不同程度的语义化描述。 相似文献
6.
【目的/意义】智慧数据是数据资源价值挖掘的承载,其中语义丰富化方法是促成智慧数据的重要手段。语
义丰富化方法及相关实践为智慧数据建设提供参考与借鉴。【方法/过程】从语义丰富化方法的技术角度出发,梳理
语义丰富化与关系型数据库、本体以及关联数据的关系,继而对语义丰富化在医学健康、数字出版、文化遗产等领
域的应用实践展开分析和归纳。【结果/结论】语义丰富化是利用语义网以及文本挖掘、相似度计算等相关技术将数
字资源中隐含的语义关系显性化,并在不同的资源间构建语义链接,促进数字资源的互通、互联与集成。由于数字
资源语义化层次、粒度与面向领域等存在的差异,智慧数据的实现需要语义丰富化诸多方法的有效集成框架。【创
新/局限】本文分析了数据网络中数字资源向数据资源转化的新方法,但仅局限于语义丰富化在部分领域中的应
用,还需丰富和扩展资料,总结语义丰富化的框架和应用分析。 相似文献
7.
【目的/意义】基于互联网海量评论数据进行情报分析,挖掘出影响客户服务评价和满意度的关键因素,了
解客户差评背后的原因,对提升企业客户关系管理水平具有重要意义。【方法/过程】通过词云图、语义网络特征关
联分析、LDA主题模型的特征分析以及基于语义的情感词典方法,基于百度口碑中十家快递企业的客户评论数据
进行了情感计算与分析。【结果/结论】影响客户情感倾向的主要因素为：物流速度、服务态度、电话服务、投诉处理、
物流信息更新、时效性以及收费价格。基于上述结果提出了对策与建议。【创新/局限】基于现实世界真实数据,采
用数据挖掘方法分析客户情感倾向,为客户情感关键影响因素识别提供了数据科学的研究范式。 相似文献
8.
供给侧视域下的学术期刊数字出版发展路径 总被引：1，自引：1，他引：0
【目的】 缓和学术期刊供给侧与需求侧的矛盾,优化传统学术期刊的供给侧改革、使传统学术期刊摆脱枷锁,积极迎接数字出版挑战,把握数字出版机遇。【方法】 从优化学术期刊供给侧改革角度出发,探讨媒体融合、期刊专业化建设、语义出版背景下学术期刊供给属性,分析改革动力。【结果】 学术期刊应该积极借助媒体融合东风,优化资源、人才供给;加大专业化建设力度,积极开展学科化集群平台建设;全力推广语义出版技术,掌握HTML、XML技术,加强体制改革。 【结论】 提出的改革路径可为中国学术期刊数字出版发展的战略制定提供参考。 相似文献
9.
App在医学期刊出版中的应用 总被引：2，自引：1，他引：1
冯秋蕾 《中国科技期刊研究》2015,26(4):370-375
【目的】通过分析App医学期刊数字化出版形式的优势和不足,促进医学期刊的数字化出版。【方法】 以App“中华医学会系列期刊”和 App“医客”为例,深入分析App在医学期刊出版中的应用现状,提出目前存在的问题并探索未来的发展方向。【结果】App作为医学期刊数字化出版的应用形式之一,在价格、时效性、用户需求、阅读体验和功能完善等方面具有显著的优势,但同时在应用过程中也存在一些需要改进的地方。【结论】 App可以成为医学期刊数字化出版的实践形式。推进App的应用,对于医学期刊数字化出版具有较好的实践意义和指导意义。 相似文献
10.
【目的/意义】从海量微博信息中提取准确的主题词,以期为政府和企业进行舆情分析提供有价值的参考。
【方法/过程】通过分析传统微博主题词提取方法的特点及不足,提出了基于语义概念和词共现的微博主题词提取
方法,该方法利用文本扩充策略将微博从短文本扩充为较长文本,借助于语义词典对微博文本中的词汇进行语义
概念扩展,结合微博文本结构特点分配词汇权重,再综合考虑词汇的共现度来提取微博主题词。【结果/结论】实验
结果表明本文提出的微博主题词提取算法优于传统方法,它能够有效提高微博主题词提取的性能。【创新/局限】利
用语义概念结合词共现思想进行微博主题词提取是一种新的探索,由于算法中的分词方法对个别网络新词切分可
能不合适,会对关键词提取准确性造成微小影响。 相似文献
11.
Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
12.
A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
13.
Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
14.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
15.
Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献
16.
Milton Mueller 《The Information Society》2001,17(3):151-163
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP. 相似文献
17.
Prof. Raymond C.K. Chen a neuropsychologist with the CAS Institute of Psychology has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.…… 《中国科学院院刊(英文版)》2008,22(1):15-15
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology. 相似文献
18.
《中国科学院院刊(英文版)》2014,(3)
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence 相似文献
19.
Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels 总被引：1，自引：0，他引：1
《中国科学院院刊(英文版)》2014,(3):267-268
<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese 相似文献
20.
WANG Sijia 《中国科学院院刊(英文版)》2014,(2):192-194
<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages. 相似文献