基于FastText的新闻文本多分类研究     

张超超  卢新明 《教育技术导刊》2020,19(3):44-47

在迅速增加的海量数据中,文本形式的数据占很大比重。文本分类作为最常见的文本挖掘技术,可在大量杂乱的文本数据中发现有价值的信息,具有重要意义。文本分类面临的首要问题是如何在确保分类准确率的同时缩短分类时间。提出使用分类模型FastText学习单词特征以解决该问题,同时在数据集上使用停用词处理方法降低噪声数据对分类模型的影响。实验结果表明,使用FastText文本分类模型在数据集上准确率达到96.11%,比传统模型提高近4%,且模型处理每条文本的平均时间为1.5ms,缩短了约1/3。  相似文献   

揭开神秘的面纱--评《神话与现实-〈一千零一夜〉论》     

丁淑红 《南京师范大学文学院学报》2005,(2):53-58

郅溥浩所著《神话与现实-<一千零一夜>论》是我国第一部以多层次、多视角研究阿拉伯民间文学《一千零一夜》的专著。作者首先追本溯源,解析《一千零一夜》的成书之谜;其次在国际民间故事研究的宏大视野下,考察其故事母题和故事类型的特点;再用微观求证的方法,以文化参与的开阔视点深入挖掘文本的丰富文化内涵并探究其双重价值取向;最后在宏观的视野下考察其世界地位。  相似文献   

流媒体课件中流式素材的制作     

陈代武  贺文华 《娄底师专学报》2006,(6):47-49

探讨了流媒体课件中流式素材的制作，主要论述了流式文本、流式音频和流式视频素材的制作方法与制作技巧。给出了具体的制作实例，分析了流化的过程和流式文件的有关属性。  相似文献   

Jack in two boxes: A postmodern perspective on the transformation of persons into portraits   总被引：1，自引：0，他引：1  

Maggie MacLure  Ian Stronach 《Interchange》1993,24(4):353-380

The paper explores issues surrounding portrayal in educational research and interrogates the notion of a life as a textual product, via an analysis of two short biographical narratives which happen to portray the same person — a British primary school head teacher nearing the end of his career. The discrepancies between these two texts point to the problematic nature of the relationship between person and portrait, and make visible some of the textual devices that writers/researchers use in order to achieve coherence and authenticity in biographical narratives.  相似文献   

社会学批评的一种成功实践--王彬彬批评读解     

樊义红 《周口师范学院学报》2006,23(3):51-53

当代著名批评家王彬彬往往以社会学批评方法从事批评实践活动，表现出三方面主要特色：儒宰的入世精神和浩然正气；对道德与人文精神的坚持和对现实的批判；学理性和文学性俱佳的文本形式。他取得了一定的成就，在当代文学批评中自成一家。  相似文献   

影视字幕文本特征及其翻译策略     

李大鹏  郑茗馨 《安顺学院学报》2017,19(2)

论文以当下流行美国影视作品为例,分析了影视字幕的文本特征,总结影视字幕文本的翻译技巧与策略,切实提高影视作品字幕翻译的效率,有效缩短了由语言差异性带来的文化距离.  相似文献   

Improving the precision of the keyword-matching pornographic text filtering method using a hybrid model     

苏贵洋  李建华  马颖华  李生红 《浙江大学学报(A卷英文版)》2004,5(9):1106-1113

With the flooding of pornographic information on the Internet, how to keep people away from that offensive information is becoming one of the most important research areas in network information security. Some applications which can block or filter such information are used. Approaches in those systems can be roughly classified into two kinds:metadata based and content based. With the development of distributed technologies, content based filtering technologies will play a more and more important role in filtering systems. Keyword matching is a content based method used widely in harmful text filtering. Experiments to evaluate the recall and precision of the method showed that the precision of the method is not satisfactory, though the recall of the method is rather high. According to the results, a new pornographic text filtering model based on reconfirming is put forward. Experiments showed that the model is practical, has less loss of recall than the single keyword matching method, and has higher precision.  相似文献   

译者主体的创造性     

李倩 《通化师范学院学报》2004,25(7):110-112

译作为翻译活动的主体，应在翻译中发挥其能动参与和积极的创造性作用。本提出“衍生本”的概念，并从译创造性产生的前提、根源和具体实现方式这三个方面论证了译主体创造性的客观存在，认为只有正视这种创造性的客观存在并对其加以积极运用．才能正确地指导翻译活动的进行。  相似文献   

Personalized learning in iSTART: Past modifications and future design     

Kathryn S. McCarthy  Micah Watanabe  Jianmin Dai  Danielle S. McNamara 《Journal of Research on Technology in Education》2020,52(3):301-321

Abstract

Computer-based learning environments (CBLEs) provide unprecedented opportunities for personalized learning at scale. One such system, iSTART (Interactive Strategy Training for Active Reading and Thinking) is an adaptive, game-based tutoring system for reading comprehension. This paper describes how efforts to increase personalized learning have improved the system. It also provides results of a recent implementation of an adaptive logic that increases or decreases text difficulty based on students’ performance rather than presenting texts randomly. High school students who received adaptive text selection showed increased sense of learning. Adaptive text selection also resulted in greater pre-training to post-training comprehension test gains, especially for less-skilled readers. The findings demonstrate that system-driven, just-in-time support consistent with the goals of personalized learning benefit the efficacy of computer-based learning environments.  相似文献   

基于文本挖掘和技术路线图的技术创新机会发现     

刘兰  赵新力  李艳 《中国软科学》2007,(6):102-105,110

本文在介绍文本挖掘和技术路线图研究情况的基础上，探讨如何将文本挖掘和技术路线图结合起来，通过挖掘隐含在科技信息中的知识和联系，并结合技术领域专家，绘制技术路线图，以帮助技术主管发现技术创新的机会。  相似文献