The Director-General of UNESCO     

Matsuura  Koïchiro 《Prospects》2002,32(2):123-124

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A flexible approach to reassembling thin artifacts of unknown geometry     

Geoffrey Oxholm  Ko Nishino 《Journal of Cultural Heritage》2013,14(1):51-61

We present a novel 3D reassembly method for fragmented, thin objects with unknown geometry. Unlike past methods, we do not make any restrictive assumptions about the overall shape of the object, or its painted texture. Our key observation is that regardless of the object's shape, matching fragments will have similar geometry and photometry along and across their adjoining regions. We begin by encoding the scale variability of each fragment's boundary contour in a multichannel, 2D image representation. Using this multichannel boundary contour representation, we identify matching sub-contours via 2D partial image registration. We then align the fragments by minimizing the distance between their adjoining regions while simultaneously ensuring geometric continuity across them. The configuration of the fragments as they are incrementally matched and aligned form a graph structure that we use to improve subsequent matches. By detecting cycles in this graph, we identify subsets of fragments with interdependent alignments. We then minimize the error within the subsets to achieve a globally optimal alignment. We leverage user feedback to cull the otherwise exponential search space; after each new match is found and aligned, it is presented to a user for confirmation or rejection. Using ceramic pottery as the driving example, we demonstrate the accuracy and efficiency of our method on six real-world datasets.  相似文献   

The Development of Chinese Martial Arts in Taiwan since 1949     

Ling-Mei Ko  Meng-Chi Ting 《国际体育史杂志》2013,30(15):1603-1616

Abstract

In Taiwan, the historical development of traditional Chinese martial arts, or kuoshu and wushu as they are called today, has been quite diverse. This paper examines the development of Chinese martial arts from 1949 to 2017 in the context of Taiwan based on available historical evidence and in-depth interviews. The results show that there were three major historical periods in the development of Chinese martial arts. The foundation period was inaugurated when Chinese martial artists fled to Taiwan with the Nationalists. During this period, martial arts studios spread throughout the country and people began learning the traditional Chinese martial arts skills together with the national physical education curriculum incorporated martial arts in schools. Chinese martial arts in Taiwan then entered the competitive sports period when the Chinese government to promote competitive martial arts internationally and to standardize the practice and grading system required for competitions. During this period, standardized rules for nationwide competition were established, and sports instructors and athletes were trained to participate in international wushu competitions. Currently, the Chinese martial arts have been modernized and being practised to build confidence, mental discipline, and physical strength as well as for self-defence, recreational pursuits, and competition.  相似文献   

Children's stroke sequence errors in writing Chinese characters     

Law  Nancy  Ki  W.W.  Chung  A.L.S.  Ko  P.Y.  Lam  H.C. 《Reading and writing》1998,10(3-5):267-292

Each Chinese character is a two dimensional logograph and if character writing is seen as drawing a diagram, then there is no obvious correct sequence in the writing process. However, over the ages and to this day, Chinese children have been taught the proper stroke sequence for forming the characters based on some calligraphic rules when they begin to learn to write in Chinese. The rationale for the teaching of stroke sequence has traditionally been argued on the basis of facilitating better calligraphy and as a memory aid for the exact reproduction of the correct form of the character. This paper reports on a study that tries to determine how far young children can master the correct stroke sequences in writing and the common kinds of errors children made. It further explores the importance of and the possible educational implications for the teaching of stroke sequences in the teaching of handwriting based on the empirical results.  相似文献   

Predictors of self-reported and peer-reported victimization and bullying behavior in early adolescents: the role of school,classroom, and individual factors     

Košir  Katja  Klasinc  Lucia  Špes  Tanja  Pivec  Tina  Cankar  Gašper  Horvat  Marina 《European Journal of Psychology of Education - EJPE》2020,35(2):381-402

European Journal of Psychology of Education - The purpose of the present study was to examine individual and contextual predictors of victimization and bullying on a sample of early adolescents....  相似文献   

Psychological Maladjustment and Academic Achievement: A Cross-Cultural Study of Japanese, Chinese, and American High School Students     

David S. Crystal  Chuansheng Chen  rew J. Fuligni  Harold W. Stevenson  Chen-Chin Hsu  Huei-Jen Ko  Seiro Kitamura  Susumu Kimura 《Child development》1994,65(3):738-753

American, 1,633 Chinese, and 1,247 Japanese eleventh-grade students, 5 indices of maladjustment included measures of stress, depressed mood, academic anxiety, aggression, and somatic complaints. Asian students reported higher levels of parental expectation and lower levels of parental satisfaction concerning academic achievement than their American peers. Nevertheless, Japanese students reported less stress, depressed mood, aggression, academic anxiety, and fewer somatic complaints than did American students. Chinese students reported less stress, academic anxiety, and aggressive feelings than their American counterparts, but did report higher frequencies of depressed mood and somatic complaints. High academic achievement as assessed by a test of mathematics was generally not associated with psychological maladjustment. The only exception was in the United States, where high achievers indicated more frequent feelings of stress than did low achievers.  相似文献   

The effect of student teaching experience and teacher beliefs on pre-service teachers’ self-efficacy and intention to use technology in teaching     

Insook Han  Yujung Ko 《Teachers and Teaching》2017,23(7):829-842

The student teaching experience has been considered important in establishing pre-service teachers’ beliefs and attitudes towards their teaching. However, few studies have investigated the effect of student teaching experiences as an educational intervention for increasing technology integration – especially pre-service teachers’ pedagogical beliefs as an internal barrier to technology integration. Thus, this study examined how technology-centred student teaching experiences differently affect pre-service teachers with different teaching beliefs with regard to self-efficacy and intention to use technology. Participants were 55 pre-service teachers in a student teaching practicum. The findings revealed that technology-centred student teaching experiences increased pre-service teachers’ self-efficacy regardless of their teacher beliefs. Additionally, pre-service teachers with traditional teacher beliefs had a low level of intention at the outset but significantly increased their intention after experiencing technology-centred student teaching; however, those with constructivist teacher beliefs showed no meaningful differences in their intention levels. Implications for teacher education and the limitations of this study are discussed.  相似文献   

Solfeggio learning and the influence of a mobile application based on visual,auditory and tactile modalities     

Matjaž Debevc  Jernej Weiss  Andrej Šorgo  Ines Kožuh 《British journal of educational technology : journal of the Council for Educational Technology》2020,51(1):177-193

Traditional methods of learning solfeggio (music theory) generally do not take advantage of computer-based support, meaning that, when learning individually, students cannot receive instantaneous feedback on their activities. The aim of this study is to examine the effectiveness of an interactive mobile application, mySolfeggio, for learning solfeggio. Using a mobile device, students can take advantage of visual, auditory and tactile modalities to recognise musical notes. Students can also practice and learn notation, rhythm and melody, for which the mobile application provides corrective feedback. To evaluate students’ perceptions of the mobile application and its effect on knowledge, we conducted an experiment with 42 students, from 9 to 13 years old. After learning a particular song during a regular lesson, one group of students practiced it individually with only the musical notation, while the other group used both the musical notation and the mobile application. The results of the experiment illustrated only a small effect on students’ performance in singing and tapping when using the mobile application. However, they demonstrated higher scores in terms of musical intervals and rhythmic accuracy when compared to students in the control group. The students did not find the use of the application difficult, thus allowing it to be used as a tool for improvement of their homework practice.  相似文献   

Using the revised EM algorithm to remove noisy data for improving the one-against-the-rest method in binary text classification     

Hyoungdong Han  Youngjoong Ko  Jungyun Seo 《Information processing & management》2007

Automatic text classification is the problem of automatically assigning predefined categories to free text documents, thus allowing for less manual labors required by traditional classification methods. When we apply binary classification to multi-class classification for text classification, we usually use the one-against-the-rest method. In this method, if a document belongs to a particular category, the document is regarded as a positive example of that category; otherwise, the document is regarded as a negative example. Finally, each category has a positive data set and a negative data set. But, this one-against-the-rest method has a problem. That is, the documents of a negative data set are not labeled manually, while those of a positive set are labeled by human. Therefore, the negative data set probably includes a lot of noisy data. In this paper, we propose that the sliding window technique and the revised EM (Expectation Maximization) algorithm are applied to binary text classification for solving this problem. As a result, we can improve binary text classification through extracting potentially noisy documents from the negative data set using the sliding window technique and removing actually noisy documents using the revised EM algorithm. The results of our experiments showed that our method achieved better performance than the original one-against-the-rest method in all the data sets and all the classifiers used in the experiments.  相似文献   

海桑属的新分类群     

高蕴璋 《中国科学院研究生院学报》1985,23(4):311-314

Sonneratia, a small genus of Sonneratiaceae, is widely distributed throughout SE. Asia, E. Africa and N. Australia, extending from 18˚S. to 20˚N. and from 45˚ to 150˚E. In China it occurs only in the Hainan Island. In this paper,  two new sections areproposed and six species are recognized, of which one is described as new.  相似文献