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   39452篇
  免费   98篇
  国内免费   101篇
教育   34232篇
科学研究   2740篇
各国文化   50篇
体育   277篇
综合类   1629篇
文化理论   10篇
信息传播   713篇
  2024年   4篇
  2023年   57篇
  2022年   130篇
  2021年   406篇
  2020年   590篇
  2019年   429篇
  2018年   171篇
  2017年   209篇
  2016年   226篇
  2015年   1381篇
  2014年   3168篇
  2013年   2777篇
  2012年   4455篇
  2011年   4004篇
  2010年   2732篇
  2009年   2450篇
  2008年   2597篇
  2007年   3038篇
  2006年   2637篇
  2005年   2148篇
  2004年   1705篇
  2003年   1555篇
  2002年   1164篇
  2001年   859篇
  2000年   471篇
  1999年   118篇
  1998年   50篇
  1997年   37篇
  1996年   34篇
  1995年   15篇
  1994年   10篇
  1993年   8篇
  1992年   5篇
  1991年   5篇
  1989年   3篇
  1985年   1篇
  1984年   1篇
  1982年   1篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
本文综述网络语言的研究现状,分别论述网络词汇的收集整理、性质、类型、来源、词汇义、规范问题的研究现状,并提出对未来网络语言研究的展望。  相似文献   
992.
田鑫 《科教文汇》2011,(14):146-146
随着经济社会的发展,英语教学对学生的综合素质提出了越来越高的要求,而多媒体的运用为教育教学活动提供了内容丰富的教学资源。然而,边远地区的多媒体教学存在思想落后、资金匮乏、技术薄弱等问题。本文着重讨论多媒体教学在边远地区英语基础教育中运用所产生的积极教学效果及其存在的一系列问题。  相似文献   
993.
陈学武 《科教文汇》2011,(14):152-153
情感因素中的焦虑与二语习得之间存在着一定的相关性,许多外语专家认为焦虑会给外语学习带来负面影响。因此,降低学生的学习焦虑可以提高学生的学习效果和成绩。在本文中,笔者从揭示焦虑对初中生英语听力效果与成绩的影响入手,通过对这些影响进行分析,笔者得出一些提高学生听力能力的教学启示。  相似文献   
994.
情报检索语言的词汇控制问题   总被引:4,自引:0,他引:4  
柴省三 《情报科学》2000,18(7):627-630
本文在情报检索语言和自然语言原理、交流方式等简要比较的基础上,对情报检索中词汇控制的必要性,词汇控制的内容,原则以及词汇控制对检索效率的影响,进行了探讨。  相似文献   
995.
图书馆态势语的隐性知识   总被引:1,自引:0,他引:1  
杨扬 《现代情报》2010,30(4):123-125
本文从态势语对图书馆读者服务工作的影响层面切入,解读了什么是态势语和隐性知识,并详细介绍了在读者服务工作中应如何运用态势语和提高运用的途径。  相似文献   
996.
Structured sentiment analysis is a newly proposed task, which aims to summarize the overall sentiment and opinion status on given texts, i.e., the opinion expression, the sentiment polarity of the opinion, the holder of the opinion, and the target the opinion towards. In this work, we investigate a transition-based model for end-to-end structured sentiment analysis task. We design a transition architecture which supports the recognition of all the possible opinion quadruples in one shot. Based on the transition backbone, we then propose a Dual-Pointer module for more accurate term boundary detection. Besides, we further introduce a global graph reasoning mechanism, which helps to learn the global-level interactions between the overlapped quadruples. The high-order features are navigated into the transition system to enhance the final predictions. Extensive experimental results on five benchmarks demonstrate both the prominent efficacy and efficiency of our system. Our model outperforms all baselines in terms of all metrics, especially achieving a 10.5% point gain over the current best-performing system only detecting the holder-target-opinion triplets. Further analyses reveal that our framework is also effective in solving the overlapping structure and long-range dependency issues.  相似文献   
997.
The spread of fake news has become a significant social problem, drawing great concern for fake news detection (FND). Pretrained language models (PLMs), such as BERT and RoBERTa can benefit this task much, leading to state-of-the-art performance. The common paradigm of utilizing these PLMs is fine-tuning, in which a linear classification layer is built upon the well-initialized PLM network, resulting in an FND mode, and then the full model is tuned on a training corpus. Although great successes have been achieved, this paradigm still involves a significant gap between the language model pretraining and target task fine-tuning processes. Fortunately, prompt learning, a new alternative to PLM exploration, can handle the issue naturally, showing the potential for further performance improvements. To this end, we propose knowledgeable prompt learning (KPL) for this task. First, we apply prompt learning to FND, through designing one sophisticated prompt template and the corresponding verbal words carefully for the task. Second, we incorporate external knowledge into the prompt representation, making the representation more expressive to predict the verbal words. Experimental results on two benchmark datasets demonstrate that prompt learning is better than the baseline fine-tuning PLM utilization for FND and can outperform all previous representative methods. Our final knowledgeable model (i.e, KPL) can provide further improvements. In particular, it achieves an average increase of 3.28% in F1 score under low-resource conditions compared with fine-tuning.  相似文献   
998.
Few-Shot Event Classification (FSEC) aims at assigning event labels to unlabeled sentences when limited annotated samples are available. Existing works mainly focus on using meta-learning to overcome the low-resource problem that still requires abundant held-out classes for model learning and selection. Thus we propose to deal with the low-resource problem by utilizing prompts. Further, existing methods suffer from severe trigger biases that may result in ignorance of the context. That is, the correct classifications are gained by looking at only the triggers, which hurts the model’s generalization ability. Thus, we propose a knowledgeable augmented-trigger prompt FSEC framework (AugPrompt), which can overcome the bias issues and alleviates the classification bottleneck brought by insufficient data. In detail, we first design an External Knowledge Injection (EKI) module to incorporate an external knowledge base (Related Words) for trigger augmentation. Then, we propose an Event Prompt Generation (EPG) module to generate appropriate discrete prompts for initializing the continuous prompts. After that, we propose an Event Prompt Tuning (EPT) module to automatically search prompts in the continuous space for FSEC and finally predict the corresponding event types of the inputs. We conduct extensive experiments on two public English datasets for FSEC, i.e., FewEvent and RAMS. The experimental results show the superiority of our proposal over the competitive baselines, where the maximum accuracy increase compared to the strongest baseline reaches 10.8%.  相似文献   
999.
结合多个灯光设计案例,阐述对专业化舞台灯光的认识,包括如何推动高品质、高质量的专业化舞台灯光发展,当代灯光技术进步对灯光设计师提出的新要求、对灯光设备及灯光厂家的要求等。  相似文献   
1000.
徐育新  崔雪红 《科教文汇》2020,(11):185-186
经济新常态下,社会发展对于人才的需求不断提高,应用型人才开始在各个领域崭露头角,迅速成为高校乃至职业院校人才培养的重点。从应用型人才培养的角度,实用英语修辞学教育有着非常积极的作用,应该得到足够的重视。本文从应用型人才以及实用英语修辞学课程的内涵出发,就基于应用型人才的实用英语修辞学教学策略进行了分析和讨论,希望能够促进教学水平的提高。  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