Cognitive-inspired domain adaptation of sentiment lexicons     

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   

书刊市场 数码印刷的巨大商机     

Frank D.Steenburgh 《桌面出版与设计》2008,(3):68-69

有关书刊市场,最重要的莫过于它为胶印和数码印刷提供的市场机遇了。胶印在这个市场机遇中占据着最大的份额,而数码印刷则面临着实实在在的增长机遇。  相似文献   

数码照片市场一个真正的大机遇     

Frank D.Steenburgh 《桌面出版与设计》2008,(4):78-79

上个月,我参加了在美国内华达州拉斯维加斯举行的国际影像器材及电子贸易博览会。有2万多人参观了这次展会,他们中包括许多专业摄影师和数码印刷商。  相似文献   

与营销及设计人员一起促进业务增长     

Frank D.Steenburgh 《桌面出版与设计》2008,(5):64-65

增加数码印刷收入最有效的方法是与客户的营销人员和设计人员形成伙伴关系．正如施乐公司所绘制的图1所示。  相似文献   

An Historical Sketch of the American Medical Association     

Frank Billings 《Journal of the Medical Library Association》1904,2(2):81-91

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对佛教体验的再思考:皈依与神迹--佛教体验的"家族相似性"特征     

弗兰克·J·霍夫曼  刘玉梅 《华中科技大学学报(社会科学版)》2005,19(6):16-24

佛教中的体验与“家庭相似性”关联何在,为之辩护的论题包括两部分：（1）与其他方式相比,把皈依概念和神迹概念纳入体验概念可以使我们对佛教体验形成一种更为恰当的观点,而这一观点能够表明佛教的宣称与科学的经验主义的宣称之间的区别（前提1-10）;（2）关于界定体验之所是的“家族相似性”理念,本文结论是,皈依与神迹是对佛教中的体验所作出的非实在论的“家族相似性”定义中的两个要素（前提11-13）.  相似文献   

Afterword: inexhaustible cultural learning     

Frank Simon 《Paedagogica Historica: International Journal of the History of Education》2017,53(3):342-346

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We game on skyscrapers: the effects of an equity-informed game design workshop on students’ computational thinking skills and perceptions of computer science     

Çakır  Nur Akkuş  Çakır  Murat Perit  Lee  Frank J. 《Educational technology research and development : ETR & D》2021,69(5):2683-2703

Educational technology research and development - This paper presents a game-design workshop built around a digital art installation featuring video games displayed over a real-world skyscraper to...  相似文献   

From Parent to Child to Parent: Associations Between Parent and Offspring Psychopathology     

Yllza Xerxa  Leslie A. Rescorla  Jan van der Ende  Manon H.J. Hillegers  Frank C. Verhulst  Henning Tiemeier 《Child development》2021,92(1):291-307

Parental psychopathology can affect child functioning, and vice versa. We examined bidirectional associations between parent and offspring psychopathology in 5,536 children and their parents. We asked three questions: (a) are parent-to-child associations stronger than child-to-parent associations? (b) are mother-to-child associations stronger than father-to-child associations? and (c) do within- and between-person effects contribute to bidirectional associations between parent and offspring psychopathology? Our findings suggest that only within-rater bidirectional associations of parent and offspring psychopathology can be consistently detected, with no difference between mothers and fathers. Child psychopathology was hardly associated with parental psychopathology. No evidence for cross-rater child-to-parent associations was found suggesting that the within-rater child-to-parent associations reflect shared method variance. Moreover, within-person change accounted for a part of the variance observed.  相似文献   

An Illusion of Self-Sufficiency for Learning About Artifacts in Scaffolded Learners,But Not Observers     

Emory Richardson  Mark Sheskin  Frank C. Keil 《Child development》2021,92(4):1523-1538

Two studies ask whether scaffolded children (n = 243, 5–6 years and 9–10 years) recognize that assistance is needed to learn to use complex artifacts. In Study 1, children were asked to learn to use a toy pantograph. While children recognized the need for assistance for indirect knowledge, 70% of scaffolded children claimed that they would have learned to use the artifact without assistance, even though 0% of children actually succeeded without assistance. In Study 2, this illusion of self-sufficiency was significantly attenuated when observing another learner being scaffolded. Learners may fail to appreciate artifacts’ opacity because self-directed exploration can be partially informative, such that learning to use artifacts is typically scaffolded instead of taught explicitly.  相似文献