• Title/Summary/Keyword: Representations

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Way to the Method of Teaching Korean Speculative Expression Using Visual Thinking : Focusing on '-(으)ㄹ 것 같다', '-나 보다' (비주얼 씽킹을 활용한 한국어 추측 표현 교육 방안 : '-(으)ㄹ 것 같다', '-나 보다'를 대상으로)

  • Lee, Eun-Kyoung;Bak, Jong-Ho
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.5
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    • pp.141-151
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    • 2021
  • This study analyzed the meaning and functions of '-(으)ㄹ 것 같다' and '-나 보다' among the various semantic functions depending on the situation, and discussed ways to train speculative expressions more efficiently by expanding them from traditional teaching methods through visualizations applied visual thinking at real Korean language education. The speculative representation, which is the subject of this study, represents the speaker's speculation about something or situation, with slight differences in meaning depending on the basis of the speculation and the subject of the speculation. We propose a training method that can enhance the diversification and efficiency of teaching-learning through visualization of information or knowledge, speculative representations that exhibit fine semantic differences in various situations. Utilizing visual thinking in language education can simplify and provide language information through visualization of language knowledge, and learners can be efficient at organizing and organizing language knowledge. It also has the advantage of long-term memory of language information through visualization of language knowledge. Attempts of various educational methods that can be applied at the Korean language education site can contribute to establishing a more systematic and efficient education method, which is meaningful in that the visual thinking proposed in this study can give interest and efficiency to international students.

Depictions of Scientists and Teachers' Perceptions of the 2015 Revised Elementary School Science Authorized 3rd-4th Grade Textbooks from the Perspective of Gender Equality (양성평등의 관점에서 살펴본 2015 개정 초등학교 과학과 3~4학년군 검정 교과서의 과학자 제시 실태 및 교사의 인식)

  • Chae, Heein;Noh, Sukgoo
    • Journal of Korean Elementary Science Education
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    • v.41 no.4
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    • pp.770-782
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    • 2022
  • This study analyzes the depictions of scientists and teachers' thoughts on the 2015 revised elementary school science authorized 3rd-4th grade textbooks from the perspective of gender equality, and suggest improvements for the 2015 elementary school science authorized 5th-6th grade textbooks as well as a 2022 revised elementary school science curriculum. The data consist of representations of scientists found in seven elementary science textbooks provided to 3rd- and 4th-grade students in 2022 as well as in-depth interviews conducted with three elementary school teachers and responses from 32 teachers in Gyeonggi-do. Of the 23 scientists depicted in the textbooks, three (13.0%) are female and 10 (43.5%) worked in the inquiry domain, which was the largest group. When the teachers were asked about their perceptions of the gender ratio of scientists in the textbooks, their answers revealed that they had lower perceptions of female scientists compared to male scientists; moreover, they had no or very little teaching experience concerning female scientists. Furthermore, the teachers' thoughts on improving the gender ratio of scientists depicted in the textbooks differed considerably by the teachers' gender. Based on these findings, it was concluded that during the process of producing textbooks, writers and members of society need to agree on the gender ratio of scientists to be represented, and a social consensus is needed to identify and introduce the achievements of previously unknown female scientists towards gender equality.

Insights from edTPA in the United States on assessing professional competencies of preservice mathematics teachers (미국 edTPA 평가에서 요구하는 예비 수학 교사의 전문적 역량 분석)

  • Kwon, Oh Nam;Kwon, Minsung;Lim, Brian S.;Mun, Jin;Jung, Won;Cho, Hangyun;Lee, Kyungwon
    • The Mathematical Education
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    • v.62 no.2
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    • pp.211-236
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    • 2023
  • The purpose of this study is to derive implications of preservice mathematics teacher education in Korea by analyzing the case of edTPA used in the preservice teacher training process in the United States. Recently, there has been a growing interest in promoting professional competencies considering not only the cognitive dimension related to knowledge development of preservice mathematics teachers but also the situational dimension considering reality in the classroom. The edTPA in the United States is a performance-based assessment based on lessons conducted by preservice teachers at school. This study analyzes the professional competencies required of preservice mathematics teachers by analyzing handbooks that described the case of edTPA in which preservice mathematics teachers in the United States participate. The edTPA includes planning, instruction, and assessment tasks, and continuous tasks are performed in connection with classes. Thus, the analysis is conducted on the points of linkage between the description of evaluation items and criteria in the planning, instruction, and assessment tasks, as well as the professional competencies required from that linkage. As a result of analyzing the edTPA handbooks, the professional competencies required of preservice mathematics teachers in the edTPA assessment were the competency to focus on and implement specific mathematics lessons, the competency to reflectively understand the implementation and assessment of specific mathematics lessons, and the competency to make a progressive determination of students' achievement related to their learning and their uses of language and representations. The results of this analysis can be used as constructs for competencies that can be assessed in the preservice in the organization of the preservice mathematics teacher curriculum and practice training semester system in Korea.

Affective Representations of Basic Tastes and Intensity using Multivariate Analyses (다변량분석방법을 이용한 미각 자극의 기본 맛과 강도에 따른 정서표상 )

  • Chaery Park;Inik Kim;Jongwan Kim
    • Science of Emotion and Sensibility
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    • v.26 no.2
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    • pp.39-52
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    • 2023
  • According to the core affect theory, affect consists of two independent dimensions of valence and arousal. Previous studies have found that various types of stimuli, such as pictures, videos, and music, are mapped onto the core affect space. However, the research on affect using gustatory stimuli has not been explored sufficiently. This study investigated whether the affects elicited by tastes could be mapped onto the core affect space. Stimuli were selected based on two factors (taste types and intensity). Participants were presented with each stimulus, evaluated the tastes, and rated their affective responses on taste and emotion scales. The data were analyzed using repeated-measures ANOVAs and multivariate analyses (multidimensional scaling and classification). The results of univariate analyses indicated that participants felt positive for sweet stimuli but negative for bitter and salty. Furthermore, participants reported high arousal with high intensity. Multidimensional scaling revealed that taste stimuli are also represented on the core affect dimensions. Specifically, it was confirmed that in the first dimension, sweetness was represented as a positive affect, while bitter and salty tastes were represented as a negative affect. In the second dimension, bitterness was represented as low arousal and sourness as high arousal. Classification analyses confirmed that the taste was identified consistently based on the affective responses within and across participants. This study showed that the taste stimuli in daily life are also located on core affect dimensions of valence and arousal.

Content-based Korean journal recommendation system using Sentence BERT (Sentence BERT를 이용한 내용 기반 국문 저널추천 시스템)

  • Yongwoo Kim;Daeyoung Kim;Hyunhee Seo;Young-Min Kim
    • Journal of Intelligence and Information Systems
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    • v.29 no.3
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    • pp.37-55
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    • 2023
  • With the development of electronic journals and the emergence of various interdisciplinary studies, the selection of journals for publication has become a new challenge for researchers. Even if a paper is of high quality, it may face rejection due to a mismatch between the paper's topic and the scope of the journal. While research on assisting researchers in journal selection has been actively conducted in English, the same cannot be said for Korean journals. In this study, we propose a system that recommends Korean journals for submission. Firstly, we utilize SBERT (Sentence BERT) to embed abstracts of previously published papers at the document level, compare the similarity between new documents and published papers, and recommend journals accordingly. Next, the order of recommended journals is determined by considering the similarity of abstracts, keywords, and title. Subsequently, journals that are similar to the top recommended journal from previous stage are added by using a dictionary of words constructed for each journal, thereby enhancing recommendation diversity. The recommendation system, built using this approach, achieved a Top-10 accuracy level of 76.6%, and the validity of the recommendation results was confirmed through user feedback. Furthermore, it was found that each step of the proposed framework contributes to improving recommendation accuracy. This study provides a new approach to recommending academic journals in the Korean language, which has not been actively studied before, and it has also practical implications as the proposed framework can be easily applied to services.

A Study on 'Mirror' and 'Cage' Motifs Repeatedly Displayed in Korean Female Movies (한국 여성영화에 반복적으로 나타난 '거울'과 '새장' 모티프 연구)

  • Kim, Nam-Seok
    • (The) Research of the performance art and culture
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    • no.40
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    • pp.37-69
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    • 2020
  • This study was designed to investigate the characteristics, aesthetics, similarities and differences through the flow of Korean female movies. In order to carry out this study, four movies with representations of each age had to be selected. These four films are respectively Sweet Dream produced during the Japanese colonial period, Madame Freedom which prompted the debate on feminism in the 1950s, The Silver Stallion Will Never Come which combines the devastated lives of women in the 1990s with anti-malevolent views, and A Good Lawyer's Wife which presents a futuristic selection of Korean feminist films. Especially, these works are noteworthy in that they guarantee the typicality and representative of Korean films in each period. Based on this, two common motifs appearing in these works have been intensively studied. One is a 'cage' motif that symbolizes women's detention and the other is a 'mirror' motif that women need to be aware of their situation and check the current situation. Korean women's films have not only shared some of the motifs of 'Cage' and 'Mirror', but also have focused on conveying the author's message that ultimately aimed at linking these motifs.

A Study on the Abstraction of Movements Based on Laban's Space Theory "Choreutics" (라반의 공간조화이론 "코레우틱스(Choreutics)"를 활용한 움직임의 추상적 시각화 연구)

  • Kim, Hyeran;Lee, Sang Wook
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.3
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    • pp.371-381
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    • 2017
  • This paper presents a methodology for creating abstract animation based on the human movement theories originating from the work of dance theorist Rudolf von Laban. Laban Movement Analysis is a method and language for describing, visualizing, interpreting and documenting all varieties of human movement, and Choreutics is based on universal patterns of nature and of human as part of a universal design. Laban defines the space of movements in a profoundly dualistic way. Outwardly, his objective and scientific definitions provide a concrete base for generating human movements in computer graphics in terms of geometric and motion primitives such as points, lines, planes, polygons, linear and nonlinear movements. On the other hand, he also offers a system for understanding the subtle characteristics about the way a movement is dynamically done with respect to inner intention. Laban's interpretations of human motion can be utilized potentially in plastic arts and computer arts. Our work was inspired by those physical and psychological analyses and computer algorithms have been developed for creating abstract animation. We presented our computer animation works entitled "Choreography" in the exhibitions: a special section in "2015 Craft Trend Fair" and "Make Your Movement" held in the Korean Cultural Centre in UK, 2016. In this paper, we describe our ideas and methods for creating abstract object movements based on the Laban's motion representations.

Assessment of Perceived Naturalness of Local Ecological Assets from the Perspective of Cultural Ecosystem Services (생태계문화서비스 관점에서 지역생태자산의 인지된 자연성 평가)

  • Kim, Do-Eun;Kwon, Hyuk-Soo;Son, Yong-Hoon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.51 no.3
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    • pp.107-121
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    • 2023
  • The assessment of perceived naturalness aims to elucidate the human perception and explain the interaction between natural environments and humans. The perception of ecological assets that exhibit distinct characteristics within a specific region can manifest in various representations. Based on the users' perceptions and interviews regarding ecological assets, this study assessed the perceived naturalness from a cultural services perspective. Specifically, the discussions on Ansan City's ecological assets and revolved around the inherent value of naturalness in dimensions, such as the necessity for conservation and the sustainable development of ecological assets, the perception of ecosystem benefits, the representativeness as a local asset, and usability. Subsequently, the Q method was employed to present 25 representative ecological assets to 25 users. As a result, user groups with different value systems for each question were identified, and hypothetical personas for cultural service enjoyment were distinguished. The most representative persona among the 25 users was identified as AWP (a type that values the conservation of aquatic ecosystems, prefers waterfront landscapes, and enjoys walking). Since perceived naturalness is conceptually similar to the "benefits perceived by users" in evaluating ecosystem services, it can provide more practical evaluation criteria for cultural services.

Research Trends in Record Management Using Unstructured Text Data Analysis (비정형 텍스트 데이터 분석을 활용한 기록관리 분야 연구동향)

  • Deokyong Hong;Junseok Heo
    • Journal of Korean Society of Archives and Records Management
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    • v.23 no.4
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    • pp.73-89
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    • 2023
  • This study aims to analyze the frequency of keywords used in Korean abstracts, which are unstructured text data in the domestic record management research field, using text mining techniques to identify domestic record management research trends through distance analysis between keywords. To this end, 1,157 keywords of 77,578 journals were visualized by extracting 1,157 articles from 7 journal types (28 types) searched by major category (complex study) and middle category (literature informatics) from the institutional statistics (registered site, candidate site) of the Korean Citation Index (KCI). Analysis of t-Distributed Stochastic Neighbor Embedding (t-SNE) and Scattertext using Word2vec was performed. As a result of the analysis, first, it was confirmed that keywords such as "record management" (889 times), "analysis" (888 times), "archive" (742 times), "record" (562 times), and "utilization" (449 times) were treated as significant topics by researchers. Second, Word2vec analysis generated vector representations between keywords, and similarity distances were investigated and visualized using t-SNE and Scattertext. In the visualization results, the research area for record management was divided into two groups, with keywords such as "archiving," "national record management," "standardization," "official documents," and "record management systems" occurring frequently in the first group (past). On the other hand, keywords such as "community," "data," "record information service," "online," and "digital archives" in the second group (current) were garnering substantial focus.

Diagnosis of Scoliosis Using Chest Radiographs with a Semi-Supervised Generative Adversarial Network (준지도학습 방법을 이용한 흉부 X선 사진에서 척추측만증의 진단)

  • Woojin Lee;Keewon Shin;Junsoo Lee;Seung-Jin Yoo;Min A Yoon;Yo Won Choi;Gil-Sun Hong;Namkug Kim;Sanghyun Paik
    • Journal of the Korean Society of Radiology
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    • v.83 no.6
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    • pp.1298-1311
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    • 2022
  • Purpose To develop and validate a deep learning-based screening tool for the early diagnosis of scoliosis using chest radiographs with a semi-supervised generative adversarial network (GAN). Materials and Methods Using a semi-supervised learning framework with a GAN, a screening tool for diagnosing scoliosis was developed and validated through the chest PA radiographs of patients at two different tertiary hospitals. Our proposed method used training GAN with mild to severe scoliosis only in a semi-supervised manner, as an upstream task to learn scoliosis representations and a downstream task to perform simple classification for differentiating between normal and scoliosis states sensitively. Results The area under the receiver operating characteristic curve, negative predictive value (NPV), positive predictive value, sensitivity, and specificity were 0.856, 0.950, 0.579, 0.985, and 0.285, respectively. Conclusion Our deep learning-based artificial intelligence software in a semi-supervised manner achieved excellent performance in diagnosing scoliosis using the chest PA radiographs of young individuals; thus, it could be used as a screening tool with high NPV and sensitivity and reduce the burden on radiologists for diagnosing scoliosis through health screening chest radiographs.