首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   15576篇
  免费   88篇
  国内免费   119篇
教育   11113篇
科学研究   2099篇
各国文化   22篇
体育   539篇
综合类   215篇
文化理论   421篇
信息传播   1374篇
  2024年   2篇
  2023年   5篇
  2022年   50篇
  2021年   101篇
  2020年   72篇
  2019年   44篇
  2018年   2215篇
  2017年   2132篇
  2016年   1606篇
  2015年   260篇
  2014年   311篇
  2013年   321篇
  2012年   504篇
  2011年   1009篇
  2010年   1120篇
  2009年   704篇
  2008年   895篇
  2007年   1427篇
  2006年   357篇
  2005年   651篇
  2004年   581篇
  2003年   517篇
  2002年   294篇
  2001年   161篇
  2000年   122篇
  1999年   86篇
  1998年   48篇
  1997年   58篇
  1996年   33篇
  1995年   14篇
  1994年   16篇
  1993年   12篇
  1992年   14篇
  1991年   13篇
  1990年   9篇
  1989年   5篇
  1988年   1篇
  1987年   1篇
  1986年   2篇
  1985年   1篇
  1984年   2篇
  1981年   2篇
  1979年   2篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
介绍本体的基本概念,论述本体的形式化表示和信息源表示,以及影响术语相似度的3个因素(距离,深度和密度),并在阐述如何计算术语相似度的基础上,描述基于本体和相似度检索过程。  相似文献   
52.
杨文祥  付鹏 《图书馆》2005,(3):31-37
图书馆精神与人类的进取精神相一致,是图书馆的本质在人类社会精神形态领域的体现,是在一定社会和历史条件下,人类社会基于对图书馆本质的认识而形成的反映一定图书馆行业观和图书馆价值观的精神形态,是图书馆发挥其社会职能和历史贡献的内在动力。本文分别从图书馆学基础理论研究和人类文明的历史发展两个角度,对这一问题的研究进展进行了简明的综述,对这一问题研究的深化进行了跨学科的系统思考。  相似文献   
53.
我国图书馆立法成就述评   总被引:10,自引:2,他引:10  
付立宏 《图书馆》2005,(3):48-53
本文以《中华人民共和国立法法》的规定和公认的法理为标准,对近一百年来我国图书馆立法的成就进行了总结和梳理。  相似文献   
54.
美、英、加、日、韩、俄等国家的图书情报教育颇有特色,主要表现在:图书情报教育与图书馆职业资格认证制度相辅相成;强调培育自己的专业特色;设计模块化的课程结构;重视儿童与中小学图书馆人才的培养;对研究生的教育方式比较灵活;贯彻“改革、创新”的办学理念。  相似文献   
55.
56.
Analysis of Statistical Question Classification for Fact-Based Questions   总被引:1,自引:0,他引:1  
Question classification systems play an important role in question answering systems and can be used in a wide range of other domains. The goal of question classification is to accurately assign labels to questions based on expected answer type. Most approaches in the past have relied on matching questions against hand-crafted rules. However, rules require laborious effort to create and often suffer from being too specific. Statistical question classification methods overcome these issues by employing machine learning techniques. We empirically show that a statistical approach is robust and achieves good performance on three diverse data sets with little or no hand tuning. Furthermore, we examine the role different syntactic and semantic features have on performance. We find that semantic features tend to increase performance more than purely syntactic features. Finally, we analyze common causes of misclassification error and provide insight into ways they may be overcome.  相似文献   
57.
在高等工程教育中学生自主实践创新教学活动极为重要,而当前高校普遍缺乏创新支撑服务平台及灵活的实践服务模式,学生在自主开展实践教学活动时常常需耗费大量的时间和成本去完成创新项目所需资源的准备;一轮轮的教学实践环境建设,由于多围绕课程、学科的培养体系投入,造成设备利用率低,与学生强烈的创新实践需求形成尖锐矛盾。本文基于当前国家双创示范基地中学生创新中心建设,创造性提出以工具借出、设备借用、远程加工、设计IP撮合等为特点的特色服务模式,持续大量地为学生提供基本器具资源使用和加工服务。围绕学生需求提供"创新实践图书馆"式的服务,为学生创造创新实践的服务环境。本文就设备借出、3D打印等具体工程服务分中心建设的内容、目标和服务模式,阐述了这类创新实践服务中心的建设模式,需要解决的问题和实施思路。实践证明,建设工程服务中心能有效解决设备利用率问题,更好地培养大规模勇于投身实践的创新人才,为高校创新人才培养模式开辟新途径。  相似文献   
58.
There are three models for community archives in China. The first one is where community archives are kept in government-funded/government-established museums or archives. The second is where community archives are kept by scholarly organizations such as universities. The third involves the community establishing its own archive. This last model is very unusual in China. The PiCun Culture and Art Museum of Migrant Labor (PCMML) provides an example of this model as it is the only independent community archives focusing on migrant workers in China. This paper explores the emergence and development of PCMML, its impact on community members and challenges faced including funding and staffing, but also those unique to China—PCMML is greatly influenced by a range of national and local government policies and regulations. Conclusions are that survival strategies for independent community archives in China are dependent on three dimensions: the community itself, society and the government. Cultural consciousness of the community is the premise for the establishment and sustainability of independent community archives, and independent community archives can be the public space to cultivate cultural consciousness of community members and thus activates community members’ agency to document, preserve and disseminate their own history. At the same time, independent community archives also need to engage with broader society to avoid involution and gain support and understanding. Independent community archives are constrained by government policies and regulations, so it is essential for them to develop strategic relationships with government.  相似文献   
59.
Textbook vetting and evaluation process intends to ensure that the materials provided are relevant, of the required quality, suitable ad would enhance learning efficiency and effectiveness. The paper investigates the role of publishers and Tanzania Institute of Education (TIE) in the textbooks vetting and evaluation process; examines factors used to vet, evaluate and approve primary and secondary school textbooks in Tanzania and proposes Strategies that would enhance the textbook vetting, evaluation and process. The study used a mixed method research design. Respondents were selected educational publishers; MoEVT, Baraza la Kiswahili Tanzania, TIE, and Publishers Association of Tanzania. Questionnaire and semi- structured interview were used to collect data which were analysed qualitatively and quantitatively. Major findings of the study were; textbooks vetting and evaluation process is not professionally conducted although standard criteria have been established; there is not well established roles among key players involved in the vetting and evaluation process leading to conflict of interest between TIE and the publishers. The study recommends establishing an independent professional evaluation board and a well-defined timetable and effective communication among various players; enacting a book policy and adopting a limited multiple-textbook publishing system.  相似文献   
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号