全文获取类型
| 收费全文 | 265篇 |
| 免费 | 5篇 |
专业分类
| 教育 | 203篇 |
| 科学研究 | 20篇 |
| 各国文化 | 3篇 |
| 体育 | 16篇 |
| 信息传播 | 28篇 |
出版年
| 2020年 | 7篇 |
| 2019年 | 2篇 |
| 2018年 | 12篇 |
| 2017年 | 17篇 |
| 2016年 | 8篇 |
| 2015年 | 8篇 |
| 2014年 | 10篇 |
| 2013年 | 57篇 |
| 2012年 | 7篇 |
| 2011年 | 7篇 |
| 2010年 | 9篇 |
| 2009年 | 10篇 |
| 2008年 | 6篇 |
| 2007年 | 6篇 |
| 2006年 | 3篇 |
| 2005年 | 8篇 |
| 2004年 | 3篇 |
| 2003年 | 14篇 |
| 2002年 | 4篇 |
| 2001年 | 3篇 |
| 2000年 | 4篇 |
| 1999年 | 2篇 |
| 1998年 | 7篇 |
| 1997年 | 3篇 |
| 1996年 | 3篇 |
| 1995年 | 2篇 |
| 1994年 | 2篇 |
| 1993年 | 4篇 |
| 1992年 | 5篇 |
| 1990年 | 4篇 |
| 1988年 | 2篇 |
| 1985年 | 1篇 |
| 1984年 | 3篇 |
| 1983年 | 3篇 |
| 1982年 | 3篇 |
| 1981年 | 1篇 |
| 1980年 | 2篇 |
| 1979年 | 1篇 |
| 1978年 | 3篇 |
| 1977年 | 1篇 |
| 1968年 | 1篇 |
| 1945年 | 1篇 |
| 1938年 | 1篇 |
| 1919年 | 2篇 |
| 1902年 | 1篇 |
| 1900年 | 1篇 |
| 1899年 | 1篇 |
| 1898年 | 1篇 |
| 1867年 | 1篇 |
| 1838年 | 1篇 |
排序方式： 共有270条查询结果，搜索用时 19 毫秒
51.
Emotional expression and understanding are normal instincts of human beings, but automatical emotion recognition from speech without referring any language or linguistic information remains an unclosed problem. The limited size of existing emotional data samples, and the relative higher dimensionality have outstripped many dimensionality reduction and feature selection algorithms. This paper focuses on the data preprocessing techniques which aim to extract the most effective acoustic features to improve the performance of the emotion recognition. A novel algorithm is presented in this paper, which can be applied on a small sized data set with a high number of features. The presented algorithm integrates the advantages from a decision tree method and the random forest ensemble. Experiment results on a series of Chinese emotional speech data sets indicate that the presented algorithm can achieve improved results on emotional recognition, and outperform the commonly used Principle Component Analysis (PCA)/Multi-Dimensional Scaling (MDS) methods, and the more recently developed ISOMap dimensionality reduction method. 相似文献
52.
Paul Hart 《Environmental Education Research》2000,6(1):37-46
In response to an invitation to explore the idea that potential guidelines be considered for qualitative inquiry in environmental education research, this article argues that prerequisite understanding of the nature and scope of qualitative inquiry required for such a task will reveal the problem inherent in it. Understanding the diverse complexities, the requisite variety, of qualitative inquiry not only challenges the methodological uniformity necessitated by this task philosophically; it unmasks the epistemological and ontological limits of such an endeavor, however well intentioned. 相似文献
53.
54.
55.
56.
57.
58.
59.
随着交叉学科的渗入,教学对林化专业学生知识背景和能力提出了新的要求。从本专业教学改革、提高本科生科研素养、生产实践和课程设计等方面探讨了对创新人才培养的作用。在新的历史时期下,要更新教育理念,强化教学实践环节,鼓励和引导学生参加科技创新实验,提高创新能力。 相似文献
60.
Tom Buchanan Matt St. Charles Michelle Rigler Charles Hart 《International Journal of Disability, Development & Education》2010,57(4):351-369
The presence of university students in the United States with disabilities is not a new phenomenon. However, little is known about the attitudes of university faculty concerning less visible disabilities such as attention‐deficit hyperactivity disorder (ADHD). Using a sample of faculty at a university in the United States (n = 136), the impact of age on faculty’s acceptance of ADHD was examined. Results indicated a higher percentage of older faculty members, compared with middle‐aged and younger faculty, selected ADHD as a condition worthy of special instructional accommodations. Irrespective of age of the respondents, ADHD had the lowest acceptance as a condition deserving special accommodations. Finally, fewer middle‐aged and older faculty attributed difficulties experienced by a student with ADHD symptoms to “bad” character, a lack of discipline or a lack of motivation. These findings suggest more emphasis should be placed on disability‐related education and training for faculty members during early stages of their careers. 相似文献