• Proceedings of the Korea Information Processing Society Conference
• /
• 2020.11a
• /
• pp.69-72
• /
• 2020

Log Structured Merged Tree(LSM-Tree)구조를 사용하여 빠른 데이터 쓰기 성능을 보유한 RocksDB에는 쓰기 증폭과 공간 증폭 현상이 발생한다. 쓰기 증폭은 과도한 쓰기 연산을 유발하여 데이터 처리 성능 저하와 플래시 메모리 기반 장치의 수명 저하를 초래하며, 공간 증폭은 데이터 저장 공간 점유로 인한 저장 공간 부족 문제를 야기한다. 본 논문에서는 쓰기 증폭과 공간 증폭 완화를 위해 RocksDB 의 성능에 영향 주는 주요 파라미터를 추출하고, 기계학습 기법인 랜덤 포레스트를 사용하여 추출한 파라미터가 쓰기 증폭과 공간 증폭에 미치는 영향을 분석하였다. 실험결과 쓰기 증폭과 공간 증폭에 영향을 많이 주는 주요 요소를 선별하였고 다른 파라미터에 대비해서 성능 격차가 61.7% 더 나타낸 것을 발견하였다.

• Education of Primary School Mathematics
• /
• v.15 no.3
• /
• pp.177-187
• /
• 2012

The purpose of this study was to analysis the gender differences in the academic achievement and the difference of academic achievement by the residential area in elementary school. Common phenomenon was observed in the result of the differences between male and female students' academic achievement and the ratio of achievement level. Female students' score was higher in 3rd grade elementary school but in 4th and 5the grade this phenomenon was gradually weakened. The following are the results of analysis of elementary school students' mathematics academic achievement in three areas(big city, small city and rural area). In the result was proved that the problem of the gap between the urban and rural areas has continued in the 21st century.

• The Journal of the Korea Contents Association
• /
• v.21 no.11
• /
• pp.56-63
• /
• 2021

To solve the digital divide of the elderly, various institutions are educating how to use various smart devices for the elderly. However, it cannot be expected to have a great effect due to the disadvantages of instructor-to-face education and the learning characteristics of the elderly. Accordingly, educational contents using digital devices using robots for the elderly were developed. In this study, Evaluation Indicators were developed to evaluate the usability of digital education using robots. Also, by using usability evaluation based on the developed Evaluation Indicators, we tried to verify the usability of education using robots and to confirm the possibility of expanding the application area. In order to successfully apply the developing robot technology to various fields, it is essential to verify the usability of contents using robots, and this study on Evaluation Indicators and Evaluation methods is expected to serve as a foundation.

• Journal of The Korean Association of Information Education
• /
• v.14 no.3
• /
• pp.417-425
• /
• 2010

According to the increasing education concerns for students of multi-cultural family, it has been focused about the multi-cultural education's Model and the study of teaching way, something like that. However, the study of computer education is very rare and not continued. But Multi-culture students' information gap is remarkably high as compared with common students. So, the measures for reducing the information gap is needed for their future study and future life. Therefore, this thesis will be suggested computer education as an additional education process for the students of multi-cultural family to be easily accustomed to Korean education currents and reduce the information gap for students of multi-cultural family. To verify the validity, I will conduct the survey for multi-cultural experts. After that, the quality of education in stages will be constructed.

• 한국정보교육학회:학술대회논문집
• /
• 2021.08a
• /
• pp.239-245
• /
• 2021

In order to analyze the educational effect of learning mentoring conducted for 4 weeks by the Korea Educational Broadcasting System(EBS) for elementary school students, the changes in self-directed learning skills and emotional stability were analyzed through pre-test and post-test for 27 students who participated in the EBS learning mentoring. As a result, it was found that students' self-directed learning ability and emotional stability were both improved. In addition, the students showed high satisfaction with the mentor who guided their learning and taught them. Therefore, in order to reduce the learning gap of underprivileged students in the distance learning situation, the EBS learning mentoring project should be continuously promoted, and the mentoring period and the number of students and teachers participating in mentoring should be significantly increased.

• 한국정보교육학회:학술대회논문집
• /
• 2004.08a
• /
• pp.397-405
• /
• 2004

선진 각국에서는 지식기반 정보사회로의 급속한 이행과 사이버 공간의 확장에 따라 사이버 교육에 대한 법적 제도적 근거를 마련함은 물론 이의 적극적인 활용을 모색하고 있다. 우리나라에서는 교육혁신과 인적자원개발을 위한 2단계 교육정보화종합발전 방안을 마련 및 교육과정의 개편, 실행에 옳기고 있다. 새로운 이론인 구성주의에 근거 마련된 제7차 교육과정에서는 교수 학습시 ICT의 활용을 적극 권장하는 바, 훈련 받은 교사에 의한 아동의 교수 학습 효과가 현저하여 교사의 ICT활용 관련 기회의 요청이 요구되고 있다 본 연구에서는 전국규모의 교육용소프트웨어 공모전에 참여하는 경북지역 교사들의 ICT 활용 능력과 학교급별, 지역별, 저작도구별, 분과, 분야별, 저작인수별 실태를 파악하기 위하여 당해연도 경북도 대회 2등급 이상 상위 입상작 48편에 대한 분석 및 고찰을 실시한 결과, 교원의 ICT활용 능력 신장, 지역간 정보격차 해소, 교수 학습 방법 개선 지원을 강화할 필요가 있는 등 다수의 유의미한 결과를 얻었다.

• Journal of the Korean earth science society
• /
• v.25 no.7
• /
• pp.558-564
• /
• 2004

This research investigated the connection between science textbook contents in Democratic People's Republic of Korea (DPRK) and those in Republic of Korea (ROK). Both text books in the field of earth science were analyzed and classified into 70 categories based on the Third International Mathematics and Science Study (TIMSS). Comparison was specifically made between the elementary and middle school text books of both countries; the result are as follows: First, the scope and the level of the textbooks' contents are quite different between DPRK and ROK. Text books in the South are much limited in concepts and terms than those in the North. In contrast, textbooks in DPRK are written mainly to explain concepts. Second, there are many common contents of the textbooks in DPRK and Republic of Korea. The level and scope of the contents in Republic of Korea are more inquisitive, quantitative and detailed than those in DPRK. Third, we found content connections in science textbooks between primary and secondary schools in both countries: 27 items (38.5%) are related in ROK and 19 items (27.1%) in DPRK.

• Journal of the Korean Society for Library and Information Science
• /
• v.40 no.1
• /
• pp.217-239
• /
• 2006

21st century is a knowledge and information society. Keeping pace with this global environment change. people demand various roles from a library First, they demand to play a role of an 'Information Connector' rather than a traditional role of a 'Book Container'. Second, they demand to be the place of the social integration for a solution to the information and learning gap and the place for a life-long learning for HRD(Human Resources Development) by the community unit. In addition, not only introducing a system of 'Deputy Prime Minister and Minister of Education & HRD' for national HRD and 'Five-Day Week' but the advent of 'an Aging Society' demand a change of a library. This study researches roles of a library inseparably related to such new paradigms in the life-long learning society as the knowledge. information, five-day week. aging and HRD, and shows the right direction of a library to pursue in the future.

• Journal of The Korean Association of Information Education
• /
• v.21 no.5
• /
• pp.497-507
• /
• 2017

Research on software education and linking and convergence of other subjects has been mainly focused on mathematics and science subjects. The dissatisfaction of various preferences and types of learning personality cause to learning gap. In addition, it is not desirable considering the solution of various fusion problems that can apply the computational thinking. In this way, it is possible to embrace the diverse tendencies and preferences of students through the linkage with the English subject, which is a linguistic approach that deviates from the existing mathematical and scientific approach. By combining similarities in the process of learning a new language of English education and software education. For this purpose, based on the analysis of teaching - learning model of elementary English subject and software education, we developed a class model by modifying existing English subject and software teaching - learning model to be suitable for linkage. Then, the learning elements applicable to software education were extracted from the contents of elementary school English curriculum, and a program applied to the developed classroom model was designed and the practical application method of learning was searched.

• The Journal of the Korea Contents Association
• /
• v.13 no.7
• /
• pp.484-496
• /
• 2013

With diffusion of various mobile devices, mobile learning has been one of the dominant learning styles in education fields. The purpose of this research is to examine the difference between students' perceived importance-performance of mobile learning satisfaction. The researchers reviewed the literature looking for variables which affect influential factors of students' mobile learning satisfaction such as system, contents, service, use, and outcome. As a result of t-test, the performance is lower than the importance of all the influential factors. Also, according to the result of Importance-Performance Analysis(IPA) matrix, it was noted that system factor is the most crucial factor in improving mobile learners' satisfaction. This result implies that offering technical support and simplifying the navigation design for mobile learning are urgently required.