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排序方式: 共有1173条查询结果,搜索用时 15 毫秒
1.
Fernandez Frank Baker David P. Fu Yuan-Chih Muñoz Ismael G. Ford Karly Sarita 《Minerva》2021,59(1):79-98
Minerva - Over the course of the 20th century, unprecedented growth in scientific discovery was fueled by broad growth in the number of university-based scientists. During this period the American... 相似文献
2.
Frank Z. Xing Filippo Pallucchini Erik Cambria 《Information processing & management》2019,56(3):554-564
Sentiment lexicons are essential tools for polarity classification and opinion mining. In contrast to machine learning methods that only leverage text features or raw text for sentiment analysis, methods that use sentiment lexicons embrace higher interpretability. Although a number of domain-specific sentiment lexicons are made available, it is impractical to build an ex ante lexicon that fully reflects the characteristics of the language usage in endless domains. In this article, we propose a novel approach to simultaneously train a vanilla sentiment classifier and adapt word polarities to the target domain. Specifically, we sequentially track the wrongly predicted sentences and use them as the supervision instead of addressing the gold standard as a whole to emulate the life-long cognitive process of lexicon learning. An exploration-exploitation mechanism is designed to trade off between searching for new sentiment words and updating the polarity score of one word. Experimental results on several popular datasets show that our approach significantly improves the sentiment classification performance for a variety of domains by means of improving the quality of sentiment lexicons. Case-studies also illustrate how polarity scores of the same words are discovered for different domains. 相似文献
3.
Klingner Stephan Miller Mihail Becker Michael Schumacher Frank 《Journal of Cultural Economics》2021,45(4):633-670
Journal of Cultural Economics - In the competitive, increasingly international music business, publishers are developing new ways to increase effectiveness and efficiency of the monetization of the... 相似文献
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The bounded-input bounded-output stability, finite time stability and settling time of a single-loop feedback system consisting of a nonlinear time-varying gain followed by a linear time-invariant system are investigated via a nonlinear integral inequality. The gain has the form k0+k1(t)+k2(t)g(bd) where g(bd) is a monotonic increasing function. The system is bounded-input bounded-output stable provided the time-varying gains are L1(0, t8) functions and is finite time stable for bounded gains. The nonlinear integral inequality, which is used to obtain explicit and useful bounds on the output of the system, is also employed to determine the settling time. 相似文献
9.
Self‐efficacy of prospective Austrian and German primary school teachers regarding the implementation of inclusive education 下载免费PDF全文
Susanne Schwab Frank Hellmich Gamze Görel 《Journal of Research in Special Educational Needs》2017,17(3):205-217
This study examined the psychometric properties of the German version of the Teacher Inclusive Education Self‐Efficacy Scale (TIESES). Five hundred and nineteen teacher education students from Austria and 765 teacher education students from Germany participated in the study. Results of a multiple‐group confirmatory factor analysis (for the two countries) confirmed a single factor structure of the scale with partial scalar measurement invariance. Regression analysis showed that self‐efficacy when implementing inclusive education was explained by the motivation to deal with inclusive education during their studies, previous experience with inclusive education in internships, study interest and the country in which the students went to university. 相似文献
10.
The Use of Flexible Learning Resources for Geographically Distributed Rural Students 总被引:1,自引:0,他引:1
Frank Rennie 《Distance Education》2003,24(1):25-39
The focus of this paper is to describe and explain the evolution of teaching resources and tuition on the Rural Development Studies undergraduate degree programme at the UHI Millennium Institute. This degree was selected for development in a flexible style of delivery due to the curriculum contents and its delivery to a very scattered student population over a wide rural area. The degree has a multi-disciplinary approach with a variety of tuition styles, assessment mechanisms, and student support that have been tutored in both face-to-face and remote delivery, and this illustrates well the changing nature of information and communications technologies (ICTs) in student-tutor interaction. Increasing emphasis is on the simplicity of the application of new technologies to facilitate interactivity between students and tutors but, most importantly, on improving the optimum mixture of the different teaching media used. The emphasis is on consistency and quality in distributed learning to encourage the sustainable delivery of formal education in rural and remote areas where it is not normally readily available. Current course research is investigating the sense of online community identity exhibited by groups of students on different levels, different study modules, and using different blends of resources for tutor-student-student communication. 相似文献