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   677篇
  免费   13篇
教育   526篇
科学研究   48篇
各国文化   8篇
体育   43篇
文化理论   7篇
信息传播   58篇
  2023年   5篇
  2022年   4篇
  2021年   14篇
  2020年   6篇
  2019年   24篇
  2018年   33篇
  2017年   34篇
  2016年   30篇
  2015年   22篇
  2014年   20篇
  2013年   161篇
  2012年   15篇
  2011年   19篇
  2010年   16篇
  2009年   14篇
  2008年   16篇
  2007年   18篇
  2006年   16篇
  2005年   14篇
  2004年   7篇
  2003年   16篇
  2002年   12篇
  2001年   12篇
  2000年   11篇
  1999年   10篇
  1998年   7篇
  1996年   6篇
  1995年   9篇
  1994年   5篇
  1993年   8篇
  1992年   9篇
  1991年   4篇
  1990年   3篇
  1989年   3篇
  1988年   3篇
  1987年   5篇
  1985年   4篇
  1982年   3篇
  1980年   4篇
  1979年   6篇
  1977年   4篇
  1976年   3篇
  1974年   4篇
  1971年   7篇
  1969年   3篇
  1968年   3篇
  1934年   2篇
  1868年   3篇
  1866年   2篇
  1865年   3篇
排序方式: 共有690条查询结果,搜索用时 453 毫秒
1.
2.
3.
Book Reviews     
Zuckerman: Scientist Extraordinary by Bernard Donovan BioScientifica, Bristol, 2005, 555pp. ISBN 1‐901978249 £24.95 Negotiating licences for digital resources by Fiona Durrant Facet Publishing, 2006, ISBN 1 85604 586 2 Metadata for Information Management and Retrieval By David Haynes Facet Publishing, 2004, ISBN 1 85604 4890  相似文献   
4.
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   
5.
6.
The use of open and distance learning for non‐formal education is much less canvassed in the literature than for formal education. This paper provides a case study, grounded in practice, of the first open and distance learning for non‐formal education in Mongolia, a developing country undergoing rapid transition in the 1990s from a command to a market economy and from communism to a multi‐party democracy. The paper outlines the project and its context, explains the rationale for it, and analyses its achievements, limitations and lessons. It also identifies the additional problems for Open and Distance Education (ODE) in a context of rapid economic transition.  相似文献   
7.
Amidst global competition in higher education, colleges and universities adopt strategies that mimic and adapt business practices. Branding is now a widespread practice in higher education; multimodal advertisement is a manifestation of emerging branding strategies for universities. While the visibility of brands in higher education has grown substantially in recent years, its empirical study has lagged. This article reports on the findings from a study that employed social semiotic and multimodal analysis to explore text and visual rhetoric as brand construction strategies in publicly displayed university advertisements. After analyzing photographs representing advertising campaigns from 16 different universities displayed in an urban public transportation system, I suggest that universities construct their brand identity through messages that emphasize multiple choices and convenience, but construct success primarily according to corporate standards and values.  相似文献   
8.
9.
The authors examined the experiences of 10 peer‐nominated exemplar counselor advocates using grounded theory methodology (Strauss & Corbin, 1998 ). Analysis by the authors yielded a model of how exemplar counselor advocates develop a social justice interest and provided key insights on how counselor educators can enhance social justice interest in their students. Implications for supervisors and scholars are presented.  相似文献   
10.
The use of videoconferencing enabled teachers, enrolled for in‐service training on three different sites in Northern Ireland, to work together. This not only facilitated educational co‐operation, but also community co‐operation. There are some technical and educational drawbacks, which are discussed.  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