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   3552篇
  免费   25篇
  国内免费   1篇
教育   2623篇
科学研究   482篇
各国文化   9篇
体育   79篇
综合类   6篇
文化理论   61篇
信息传播   318篇
  2022年   6篇
  2021年   10篇
  2020年   8篇
  2019年   20篇
  2018年   88篇
  2017年   129篇
  2016年   183篇
  2015年   84篇
  2014年   48篇
  2013年   182篇
  2012年   76篇
  2011年   198篇
  2010年   90篇
  2009年   141篇
  2008年   66篇
  2007年   66篇
  2006年   95篇
  2005年   710篇
  2004年   571篇
  2003年   313篇
  2002年   103篇
  2001年   54篇
  2000年   37篇
  1999年   13篇
  1998年   10篇
  1997年   10篇
  1996年   5篇
  1995年   7篇
  1994年   13篇
  1993年   13篇
  1992年   9篇
  1991年   8篇
  1990年   7篇
  1988年   5篇
  1987年   6篇
  1986年   11篇
  1985年   13篇
  1984年   7篇
  1983年   13篇
  1982年   10篇
  1981年   12篇
  1980年   22篇
  1979年   16篇
  1978年   8篇
  1977年   10篇
  1976年   11篇
  1974年   8篇
  1972年   5篇
  1971年   5篇
  1968年   4篇
排序方式: 共有3578条查询结果,搜索用时 15 毫秒
1.
依托油脂行业 办好《中国油脂》   总被引:3,自引:1,他引:2  
介绍《中国油脂》依托油脂行业,办好期刊的做法和体会。  相似文献   
2.
3.
The Primary and Secondary Handbooks on the National Curriculum for England state that children ‘should learn how to forgive themselves and others’. But what is involved in forgiveness? It is suggested that there is a strict view, which is shown to involve some ethically questionable attitudes, and a more relaxed view. Schools, it is suggested, need to introduce their students to an understanding of the complexities of these notions of forgiveness and other possible attitudes to wrongdoers. In the life and organisation of the school, however, it is argued that the more generous‐spirited attitude should prevail.  相似文献   
4.
期刊编辑工作与情报学理论   总被引:7,自引:1,他引:6  
论述传播学与情报学研究互为基础、相互融合的内在联系,以及情报学理论对期刊编辑工作的指导作用,认为情报学是提高期刊编辑工作水平的理论基础。以文稿学术水平的查新、期刊质量信息的收集、论文关键词的标引和分类号的确定这4项工作为例进一步论证了这一观点。  相似文献   
5.
6.
期刊稿件管理系统方案   总被引:11,自引:3,他引:11  
许书道 《编辑学报》2004,16(5):351-353
介绍期刊稿件管理系统的功能设计和其建档、查询、组版、工具、帮助等5个子系统的功能.试用结果表明,它运行稳定,数据可靠,使稿件管理工作效率有较大提高.  相似文献   
7.
This paper characterizes the methodological foundations of national standardization in the Russian Federation, in particular in the library and information field. The activities of Technical Standardization Committee 191 Scientific and Technical Information, Librarianship, and Publishing are reported.  相似文献   
8.
The basic properties of the blockchain technology are discussed to allow informed decisions on its selection and use in scientific and information activities. Specific examples are given and the efficiency of this technology is analyzed.  相似文献   
9.
This paper explores the information nature of culture. It is represented as an extragenetic and nonorganizational information process and system. Information is regarded as a universal property of matter that is essentially associated with development processes and realizes various forms and ways of storage and circulation at various development stages of global evolution. The socio-cultural principle of exogenous accumulation, transmission, and transformation of information is analyzed in the context of the continuing growth of the information content of material systems on the superhighway of global-universal evolution. It is noted that the information concept of culture evolves into a new area of cultural studies, that is information and cultural studies, advancing our understanding of the nature of culture and cultural genesis.  相似文献   
10.
Automatic detection of source code plagiarism is an important research field for both the commercial software industry and within the research community. Existing methods of plagiarism detection primarily involve exhaustive pairwise document comparison, which does not scale well for large software collections. To achieve scalability, we approach the problem from an information retrieval (IR) perspective. We retrieve a ranked list of candidate documents in response to a pseudo-query representation constructed from each source code document in the collection. The challenge in source code document retrieval is that the standard bag-of-words (BoW) representation model for such documents is likely to result in many false positives being retrieved, because of the use of identical programming language specific constructs and keywords. To address this problem, we make use of an abstract syntax tree (AST) representation of the source code documents. While the IR approach is efficient, it is essentially unsupervised in nature. To further improve its effectiveness, we apply a supervised classifier (pre-trained with features extracted from sample plagiarized source code pairs) on the top ranked retrieved documents. We report experiments on the SOCO-2014 dataset comprising 12K Java source files with almost 1M lines of code. Our experiments confirm that the AST based approach produces significantly better retrieval effectiveness than a standard BoW representation, i.e., the AST based approach is able to identify a higher number of plagiarized source code documents at top ranks in response to a query source code document. The supervised classifier, trained on features extracted from sample plagiarized source code pairs, is shown to effectively filter and thus further improve the ranked list of retrieved candidate plagiarized documents.  相似文献   
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