• Title/Summary/Keyword: learning stance

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Classifying Social Media Users' Stance: Exploring Diverse Feature Sets Using Machine Learning Algorithms

  • Kashif Ayyub;Muhammad Wasif Nisar;Ehsan Ullah Munir;Muhammad Ramzan
    • International Journal of Computer Science & Network Security
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    • v.24 no.2
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    • pp.79-88
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    • 2024
  • The use of the social media has become part of our daily life activities. The social web channels provide the content generation facility to its users who can share their views, opinions and experiences towards certain topics. The researchers are using the social media content for various research areas. Sentiment analysis, one of the most active research areas in last decade, is the process to extract reviews, opinions and sentiments of people. Sentiment analysis is applied in diverse sub-areas such as subjectivity analysis, polarity detection, and emotion detection. Stance classification has emerged as a new and interesting research area as it aims to determine whether the content writer is in favor, against or neutral towards the target topic or issue. Stance classification is significant as it has many research applications like rumor stance classifications, stance classification towards public forums, claim stance classification, neural attention stance classification, online debate stance classification, dialogic properties stance classification etc. This research study explores different feature sets such as lexical, sentiment-specific, dialog-based which have been extracted using the standard datasets in the relevant area. Supervised learning approaches of generative algorithms such as Naïve Bayes and discriminative machine learning algorithms such as Support Vector Machine, Naïve Bayes, Decision Tree and k-Nearest Neighbor have been applied and then ensemble-based algorithms like Random Forest and AdaBoost have been applied. The empirical based results have been evaluated using the standard performance measures of Accuracy, Precision, Recall, and F-measures.

Students' cognition and a teacher's questioning strategies in the error-finding activity of the concept of irrational numbers (무리수 개념의 오류 찾기 활동에서 학생 인식과 교사의 발문 전략)

  • Na, Youn-Sung;Choi, Song Hee;Kim, Dong-joong
    • The Mathematical Education
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    • v.62 no.1
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    • pp.35-55
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    • 2023
  • The purpose of this study is to examine not only students' cognition in the mathematical error-finding activity of the concept of irrational numbers, but also the students' learning stance regarding the use of errors and a teacher's questioning strategies that lead to changes in the level of mathematical discourse. To this end, error-finding individual activities, group activities, and additional interviews were conducted with 133 middle school students, and students' cognition and the teacher's questioning strategies for changes in students' learning stance and levels of mathematical discourse were analyzed. As a result of the study, students' cognition focuses on the symbolic representation of irrational numbers and the representation of decimal numbers, and they recognize the existence of irrational numbers on a number line, but tend to have difficulty expressing a number line using figures. In addition, the importance of the teacher's leading and exploring questioning strategy was observed to promote changes in students' learning stance and levels of mathematical discourse. This study is valuable in that it specified the method of using errors in mathematics teaching and learning and elaborated the teacher's questioning strategies in finding mathematical errors.

Effects of Action Observation Training Combied with Auditory Cueing on Gait Ability in Patients with Stroke: a Preliminary Pilot Study

  • Kim, Hyeong-Min;Son, Sung-Min;Ko, Yu-Min
    • The Journal of Korean Physical Therapy
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    • v.34 no.3
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    • pp.98-103
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    • 2022
  • Purpose: New therapeutic approaches have emerged to improve gait ability in patients with brain damage, such as action observation learning (AOT), auditory cueing, motor imagery etc. We attempted to investigate the effects of AOT with auditory cueing (AOTAC) on gait function in patients with stroke. Methods: The eighteen stroke patients with a unilateral hemiparesis were randomly divided into three groups; the AOTAC, AOT, and control groups. The AOTAC group (n=8) received training via observing a video that showed normal gait with sound of footsteps as an auditory cue; the AOT group (n=6) receive action observation without auditory stimulation; the control group (n=5) observed the landscape video image. Intervention time of three groups was 30 minutes per day, five times a week, for four weeks. Gait parameters, such as cadence, velocity, stride length, stance phase, and swing phase were collected in all patients before and after each training session. Results: Significant differences were observed among the three groups with respect to the parameters, such as cadence, velocity, stride length, and stance/swing phase. Post-hoc analysis indicated that the AOTAC group had a greater significant change in all of parameters, compared with the AOT and control groups. Conclusion: Our findings suggest that AOTAC may be an effective therapeutic approach to improve gait symmetry and function in patients with stroke. We believe that this effect is attributable to the change of cortical excitability on motor related to cortical areas.

Claim Detection and Stance Classification through Pattern Extraction Learning in Korean (패턴 추출 학습을 통한 한국어 주장 탐지 및 입장 분류)

  • Woojin Lee;Seokwon Jeong;Tae-il Kim;Sung-won Choi;Harksoo Kim
    • Annual Conference on Human and Language Technology
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    • 2023.10a
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    • pp.234-238
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    • 2023
  • 미세 조정은 대부분의 연구에서 사전학습 모델을 위한 표준 기법으로 활용되고 있으나, 최근 초거대 모델의 등장과 환경 오염 등의 문제로 인해 더 효율적인 사전학습 모델 활용 방법이 요구되고 있다. 패턴 추출 학습은 사전학습 모델을 효율적으로 활용하기 위해 제안된 방법으로, 본 논문에서는 한국어 주장 탐지 및 입장 분류를 위해 패턴 추출 학습을 활용하는 모델을 구현하였다. 우리는 기존 미세 조정 방식 모델과의 비교 실험을 통해 본 논문에서 구현한 한국어 주장 탐지 및 입장 분류 모델이 사전학습 단계에서 학습한 모델의 내부 지식을 효과적으로 활용할 수 있음을 보였다.

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Analysis about the actual situation of Arabic education and his culture in France and his view (프랑스에서의 아랍어와 아랍문화의 현황과 전망 분석 - Sabhan Rabina Al-Baldhawe의 논문을 중심으로)

  • JUNG, Il Young
    • Cross-Cultural Studies
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    • v.25
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    • pp.107-129
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    • 2011
  • This article aims to observe the role of Arabic and analyze the future of Arabic in France under the base of the Al-Sabhan Rabina Baldhawe's article, published in mettre l'importance sur University Paris 8 in 2007. In the first part, we have focus into the historical analysis: in France, with a few Arabic and French policy has been settled for what were examined. Also enable the use of Arabic in France with regard to trends of Maghreb countries and other Arab countries, is being led by noted. In the second part, we put on the importance about the situation of Arabic in the France's educational institution. And we have analysed the reasons why Arabic became the most important reason for learning the target language: - in order to faciliate the children of immigrants living in Maghreb able to speak French - Due to differences in culture and language experience to relieve the psychological insecurity above sea - By using the Arabic language at home among family members, strengthen solidarity and resolve heterogeneity In the third part, we have recognized that the French education system was looked at in the Journal of Arabic teaching elementary, middle and high school courses, separated by a learning Arabic as the target language. Finally, we have tried to find a way to revitalize Arabic in France in connection with Sabhan Rabina Al-Baldhawe concrete example of the paper were based on a survey. France and the Arab countries' relationship has been long enough to prove the historic aspects and economic cooperation have maintained a relationship even tighter. Arabic, many of the French people also need education and children to learn Arabic in the French educational institution that has shown a positive stance. French students learning Arabic as a future career in choosing the width of the wider benefits it helps to have. Learning Arabic in the course need to be addressed is also true that a lot of points. But the Arabic and various aspects of internal organization is considered a minority in the popular Arabic language training in France has become more competitive in research and analysis to be active stance is required externally, such as the increase of trade agreements and economic systems side at the level of cultural exchange and international co-operation system, strengthening its position as the Arabic language in France.

The Later Wittgenstein' Philosophy and Mathematics Learning (후기 비트겐슈타인 철학과 수학 학습)

  • Cho, Jin Woo;Lee, Kyeong-Hwa
    • Journal of Educational Research in Mathematics
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    • v.25 no.1
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    • pp.59-74
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    • 2015
  • It is an increasing research area to explore mathematics learning from discursive perspectives. However, there have been little studies conducted on why and how discursive perspectives in mathematics learning were adopted and developed. Especially, not much discussion has been done on the later Wittgenstein's philosophical stance in terms of the relationship between language and thought as a background of discursive approach to learning mathematics. This study aims to explore the later Wittgenstein on language to get better understanding about discursive approaches to mathematics learning. For the attainment of this aim, first the later philosophy is compared with the former philosophy in depth. Then the later philosophy is discussed focusing on how his point of view on the world and the language have been changed. After providing an account of his later philosophy, it is clarified that what is discursive approaches to learning mathematics and how this philosophy brace the approaches. This research concludes with implications and limitations, as well as suggestions for future researches.

Effects of Motor Imagery Training and Balance Training on Static Balance: A Quasi-Experimental Study

  • Gim, Mina;Choi, Junghyun;Ga, Heayoung
    • Journal of International Academy of Physical Therapy Research
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    • v.11 no.1
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    • pp.1999-2004
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    • 2020
  • Background: Although studies on physical motor learning through motor imagery training have been conducted in various fields, studies on its effectiveness are still considered insufficient. Objective: To investigate the effect of motor imagery training and balance training on static balance of asymptomatic adults in their 20s. Design: A quasi-experimental study. Methods: Thirty-six adults in their 20s who passed the tandem stance test were randomized to the motor imagery training group (MIG, n=12), motor imagery with balance training group (MIBG, n=12), and balance training group (BG, n=12). Each group underwent their respective interventions three times a week for four weeks, and changes in static balance were analyzed using multivariate analysis of variance. Results: Trace length was significantly lower in the MIBG than in the MIG and BG (P<.05), and a significant reduction in trace length in the MIBG was observed after the intervention as compared to the baseline (P<.05). Furthermore, a significantly lower velocity was observed in the MIBG than in the MIG and BG (P<.05), and a significant reduction of velocity in the MIBG was more observed after the intervention compared to the baseline (P<.05). Conclusion: These results suggest that motor imagery training enhance static balance in healthy college students.

Meaning and Structure of 'Eonji(言志)' as Educational Poetry (교육을 위한 노래, <도산십이곡> '언지(言志)'의 뜻)

  • Suh, Myeong-Hee
    • Journal of Korean Classical Literature and Education
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    • no.32
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    • pp.225-260
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    • 2016
  • This paper aims to shed light on the structure of "Eonji[言志]" to demonstrate that it is a song with educational purposes, which is evident in its meaning and constitution. Based on various records of the epilogue and from the texts handed down several generations, it is clear that is an educational song that describes the life of ascholar and the core of knowledge as considered by Lee-Huang. Therefore, the meaning contained in Eonji[言志] is closely related to Lee-Huang's thoughts and it reflects the Confucian way of life. In the 4thphase, Pimi-ilin[彼美一人] of Eonji[言志] states that self-learning and serving the king can be carried out concurrently. The 5th phase of Eonji[言志] describes the anxiety of the lord for the wiseman and urges people to live a life full of consideration. This shows that one should not disregard the fact that a wise man's scholarship and life can contribute to the politics of the real world, even if the wise one chooses to lead a life of seclusion; even when the wise man enters the word of politics, his behavior and traits must not deviate from the calm course of self-cultivation in nature. The structure of Eonji[言志] and its different phases comprising nature, scholarship, and education deal with the following matters: "the meaning of retirement into nature (1stphase)," "nature+the practice of scholarship (2ndphase)," "scholarship+the practice of education (3rdphase)," "nature+the stance of scholarship (4thphase)," "scholarship+the stance of education (5thphase)," and "the beauty of nature+idea of scholarship and education (6thphase)."

The Study on Applying Ankle Joint Load Variable Lower-Knee Prosthesis to Development of Terrain-Adaptive Above-Knee Prosthesis (노면 적응형 대퇴 의족개발을 위한 발목 관절 부하 가변형 하퇴 의족 적용에 대한 연구)

  • Eom, Su-Hong;Na, Sun-Jong;You, Jung-Hwun;Park, Se-Hoon;Lee, Eung-Hyuk
    • Journal of IKEEE
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    • v.23 no.3
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    • pp.883-892
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    • 2019
  • This study is the method which is adapted to control ankle joint movement for resolving the problem of gait imbalance in intervals where gait environments are changed and slope walking, as applying terrain-adaptive technique to intelligent above-knee prosthesis. In this development of above-knee prosthesis, to classify the gait modes is essential. For distinguishing the stance phases and the swing phase depending on roads, a machine learning which combines decision tree and random forest from knee angle data and inertial sensor data, is proposed and adapted. By using this method, the ankle movement state of the prosthesis is controlled. This study verifies whether the problem is resolved through butterfly diagram.

A Comparison of Quality Assurance Systems in International Students' Education: Australia, Canada, the Netherlands's Cases (외국인 유학생 교육기관 인증제 국제 비교 연구)

  • Byoun, Su-Youn;Byun, Ki-Yong
    • Korean Journal of Comparative Education
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    • v.24 no.1
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    • pp.1-29
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    • 2014
  • The purpose of this case study is to examine and compare the basic characteristics of quality assurance systems of the 3 leading countries in international higher education: Australia, Canada, and the Netherlands. The comparative analysis of the three cases demonstrates that, taking a more commercial stance on the international education service market, quality assurance systems of the 3 countries aim at facilitating effective promotion of student recruitment and enhancing their national brand image as advanced knowledge society. Consequently, rules and regulations of their systems are concerned primarily with strengthening institutional capacities to educate international students effectively, and, ultimately, improving their learning experiences in the host countries. Compared to these foreign cases, the newly-adopted quality assurance system in Korea places too much emphasis on internationalization process itself, thereby neglecting evaluation of educational capabilities of higher education institutions. Further implications for improvement of the Korean International Education Quality Assurance System(IEQAS) are discussed.