• Title/Summary/Keyword: Evaluation of an article

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Comparison Studies of Hybrid and Non-hybrid Forecasting Models for Seasonal and Trend Time Series Data (트렌드와 계절성을 가진 시계열에 대한 순수 모형과 하이브리드 모형의 비교 연구)

  • Jeong, Chulwoo;Kim, Myung Suk
    • Journal of Intelligence and Information Systems
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    • v.19 no.1
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    • pp.1-17
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    • 2013
  • In this article, several types of hybrid forecasting models are suggested. In particular, hybrid models using the generalized additive model (GAM) are newly suggested as an alternative to those using neural networks (NN). The prediction performances of various hybrid and non-hybrid models are evaluated using simulated time series data. Five different types of seasonal time series data related to an additive or multiplicative trend are generated over different levels of noise, and applied to the forecasting evaluation. For the simulated data with only seasonality, the autoregressive (AR) model and the hybrid AR-AR model performed equivalently very well. On the other hand, if the time series data employed a trend, the SARIMA model and some hybrid SARIMA models equivalently outperformed the others. In the comparison of GAMs and NNs, regarding the seasonal additive trend data, the SARIMA-GAM evenly performed well across the full range of noise variation, whereas the SARIMA-NN showed good performance only when the noise level was trivial.

A Study on the Altmetrics of the Papers of Library and Information Science Researchers Published in International Journals (국제 학술지에 발표된 문헌정보학 연구자 논문의 알트메트릭스에 관한 연구)

  • Jane Cho
    • Journal of Korean Library and Information Science Society
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    • v.53 no.4
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    • pp.143-162
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    • 2022
  • Altmetrics is an alternative impact evaluation index that evaluates the social interest in the research performance of individuals or institutions in universities, research institutions, and research fund support institutions. This study empirically analyzed what kind of attention a papers of domestic library and information science researchers published in an international academic journal was receiving in the international community using Altmetric explorer. As a result of the analysis, 230 papers were tracked. The average Altmetric Attention Score (AAS) was 6.63, but there were 2 papers that received overwhelming attention (over 170 points) as they were mentioned in news report and Twitter. Second, there was a tendency for high AAS to appear in cases where a domestic researcher participated as a co-author and the main author belonged to an overseas institution, and in the case where the research funds were supported by foreign government agencies. In addition to the field of the library information science or information system, the papers classified as the field of public health service and education showed high AAS, and it was confirmed that these papers were published in the journals of various fields such as life science. Finally, it was confirmed that there was a weak correlation of r =0.25 between the AAS and the number of citations of the analyzed paper, but a strong correlation of r =0.68 between the number of Mendeley readers and the number of citations.

Verification of Extended TRW Algorithm for DDoS Detection in SIP Environment (SIP 환경에서의 DDoS 공격 탐지를 위한 확장된 TRW 알고리즘 검증)

  • Yum, Sung-Yeol;Ha, Do-Yoon;Jeong, Hyun-Cheol;Park, Seok-Cheon
    • Journal of Korea Multimedia Society
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    • v.13 no.4
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    • pp.594-600
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    • 2010
  • Many studies are DDoS in Internet network, but the study is the fact that is not enough in a voice network. Therefore, we designed the extended TRW algorithm that was a DDoS attack traffic detection algorithm for the voice network which used an IP data network to solve upper problems in this article and evaluated it. The algorithm that is proposed in this paper analyzes TRW algorithm to detect existing DDoS attack in Internet network and, design connection and end connection to apply to a voice network, define probability function to count this. For inspect the algorithm, Set a threshold and using NS-2 Simulator. We measured detection rate by an attack traffic type and detection time by attack speed. At the result of evaluation 4.3 seconds for detection when transmitted INVITE attack packets per 0.1 seconds and 89.6% performance because detected 13,453 packet with attack at 15,000 time when transmitted attack packet.

Development of Evaluation Framework and Professional Evaluation of Health Information Predictability (건강정보의 예보성 평가준거를 활용한 전문가 평가결과 분석연구)

  • Kang, Min-Sug;Lee, Moo-Sik;Hong, Jee-Young;Kim, Sang-Ha
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.10
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    • pp.2966-2973
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    • 2009
  • In this article, I propose effective strategies for improving the Predictive Health Care. The results of qualitative study on health information show the following order from the highest score: whether health information is scientifically sound ($3.7\pm0.5$), whether people can easily understand health information ($3.6\pm0.5$), and whether health information reflects the public'sconcerns (($3.5\pm0.5$), and whether health information includes enough information to satisfy the public ($2.9\pm0.6$). The most pressing reforms for the effective Predictive Health Care areto provide enough health information and regularly collection of information because the Predictive Health Care has not provided enough information, authoritative information has rarely been offered, and methodological limitations on producing and applying predictive information have not been addressed. Although the Predictive Health Care provides online services like web-based epidemic reporting system, it needs to extend services from the epidemic information to general health information because of lack of promoting the Predictive Health Care and of credibility of information offered so far. Lastly, the Predictive Health Care needs to strengthen efforts to collect information, form common grounds between information and the public's concerns, clarify classification system of information, and offer an easy way for the public to use information.

A study on Issues and Implications of World Heritage Listing through the Case of 'Sacred Island of Okinoshima and Munakata Region' in Japan (일본의 오키노시마 유산군 사례로 본 세계유산 등재의 쟁점 및 시사점)

  • Lee, Chungsun
    • Korean Journal of Heritage: History & Science
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    • v.51 no.3
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    • pp.54-71
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    • 2018
  • This year marks the 40th anniversary of the first inscription of 12 UNESCO World Heritage sites in 1978. Based on an overview of the implementation of the 'Convention Concerning the Protection of the World Cultural and Natural Heritage', this article examines the current issues of the inscription of cultural heritage over the past 40 years. In particular, this paper focuses on the case study of 'Sacred Island of Okinoshima and Munakata Region' nominated by Japan, which was inscribed on the World Heritage List at the 41st World Heritage Committee in 2017. Also, it demonstrates the recent trend and investigates the issues of imbalances in the evaluation and the decisions among relevant actors in the nomination process of World Heritage. Furthermore, this article attempts to derive feasible implications and lessons, and to generate heritage discourse by examining Japan's management in 'heritage diplomacy' of the World Heritage Convention, which is rapidly changing in the course of its nearly half a century of implementation. In conclusion, the research is expected to provide Korea with strategic guidance marking the 30th anniversary of its entry into the Convention, and to steer the future direction for the inscription and conservation of cultural heritage.

A Critical Evaluation on the Pension Privatization Reform in Chile (칠레 연금민영화 개혁에 대한 평가)

  • Cho, Young-Hoon
    • Korean Journal of Social Welfare
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    • v.50
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    • pp.87-108
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    • 2002
  • According to Neo-liberalism, the privatization of social security systems is pivotal for a country's economic growth and the wellbeing of its people, because such systems hinder the full operation of the market, eventually leading the national economy to collapse. The Chilean case of pension privatization is often cited as a good evidence for the Neo-liberal argument. Neo-liberalists say that Chile has experienced a rapid economic growth and retirees have enjoyed a much more pension payment since the national pension system was successfully privatized in 1981. The primary purpose of this article is to provide a critical review on the results of the Chilean pension privatization reform implemented in 1981. This study is intended to give an objective understanding of the reform because the existing evaluations, particularly those from the neo-liberalism, over-emphasize the bright sides of the reform. for this purpose, this article will pay a particular attention to the change in the level of pension payment after the reform. The conclusion of this study is that, contrary to the argument of Neo-liberalism, the pension reform has lowered the level of pension payment and, compared to the old public pension, has made the lives of ordinary retirees less secure. Reorganization of the social security system is more desirable than privatization as a remedy for the current problems of the welfare state.

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Borehole Elemental Concentration Logs: Theory, Current Trends and Next Level (암석구성성분검층: 원리, 연구동향 및 향후 과제)

  • Shin, Jehyun;Hwang, Seho
    • Geophysics and Geophysical Exploration
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    • v.22 no.3
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    • pp.149-159
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    • 2019
  • Borehole elemental concentration logging, measuring neutron-induced gamma rays by inelastic scattering and neutron capture interactions between neutron and formation, delivers concentrations of the most common elements found in the minerals and fluids of subsurface formation. X-ray diffraction and X-ray fluorescence analysis from core samples are traditionally used to understand formation composition and mineralogy, but it represents only part of formations. Additionally, it is difficult to obtain elemental analysis over the whole intervals because of poor core recovery zones such as fractures or sand layers mainly responsible for groundwater flow. The development of borehole technique for in situ elemental analysis plays a key role in assessing subsurface environment. Although this technology has advanced consistently starting from conventional and unconventional resources evaluation, it has been considered as exclusive techniques of some major service company. As regards domestic research and development, it has still remained an unexplored field because of some barriers such as the deficiency of detailed information on tools and calibration facility for chemistry and mineralogy database. This article reviews the basic theory of spectroscopy measurements, system configuration, calibration facility, and current status. In addition, this article introduces the domestic researches and self-development status on borehole elemental concentration tools.

A critical review and implications of the moral-conventional distinction in moral judgment (도덕 판단에서 나타나는 도덕-인습 구분에 대한 논쟁과 함의)

  • Sul, Sunhae;Lee, Seungmin
    • Korean Journal of Cognitive Science
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    • v.29 no.2
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    • pp.137-160
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    • 2018
  • The present article reviews recent arguments on the moral-conventional distinction in moral judgment and discusses the implications for moral psychology research. Traditional research on moral judgment has considered both the evaluation of transgressive actions of others and the categorization of the norms on the moral-conventional dimension. Kohlberg, Piaget, and Turiel (1983) regard moral principles to be clearly distinguished from social-conventional norms and suggested criteria for the moral-conventional distinction. They assume that the moral domain should be specifically related to the value of care and justice, and the judgment for the moral transgression should be universal and objective. The cognitive developmental approach or social domain theory, which has been generally accepted by moral psychology researchers, is recently being challenged. In this article, we introduce three different approaches that criticize the assumptions for the moral-conventional distinction, namely, moral sentimentalism, moral parochialism, and moral pluralism. Moral sentimentalism emphasizes the role of emotion in moral judgment and suggests that moral and conventional norms can be continuously distributed on an affective-nonaffective dimension. Moral parochialism, based on the evidence from anthropology and cross-cultural psychology, asserts that norm transgression can be the object of moral judgment only when the action is relevant to the survival and reproduction of a group and the individuals within the group; judgment for moral transgression can be as relative as that for conventional transgression. Moral pluralism suggests multiple moral intuitions that vary with culture and individual, and questions the assumption of the social domain theory that morality is confined to care and justice. These new perspectives imply that the moral-conventional distinction may not properly tap into the nature of moral judgment and that further research is needed.

Life and Ideology of Jeong, Yeo Rip - Focused on Antagonistic Propensity to Zhu-xi's Ideology (정여립(鄭汝立)의 생애와 사상 - 반주자학적 성향을 중심으로 -)

  • Choi, Young-Sung
    • (The)Study of the Eastern Classic
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    • no.37
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    • pp.307-344
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    • 2009
  • This year of 2009 is the 420th anniversary for the high treason case in the year of ox (year 1589). Until now, there is an endless discussion still progressing about Jeong, Yeo Rip. The evaluation of such individual varies widely according to the viewpoint of each individual. However, the problem is that such confusion or issue is exaggerated under the pretense of his idea's progressivity. The true identity and ideology of Jeong, Yeo Rip will become clear once we review such fact from the origin. This article considered abstract and ideological evaluation of occasion and took its approach thoroughly based on the historical research of literature. Until now, some parts academic world have denied and argued about the fabrication about every details of Jeong, Yeo Rip and event of high treason in the year of ox while accepting the habitual sentence spoken by such individual without a doubt. They have exaggerated Jeong, Yeo Rip as an 'Incompleted Revolutionist' or 'Individual of Revolutionary Ideology'. However, it is imprecise to speak about the terminology of 'Revolutionary'. His ideology is simply elucidating the principal of original Confucianism or a new interpretation of the principle of Confucianism. Jeong, Yeo Rip wanted to contradict the system of national school based on the Zhu-xi's ideology and returned to the principle of original Confucianism. His idea of utopia based on the Confucianism arouse out of the intention of reviving the spirit of original Confucianism. His antagonistic propensity to Zhu-xi's ideology or political idea has transcended the principle of justification based on Sung Confucianism and was also logical and realistic. He was forced on to the deadly circumstance since the society of Joseon Dynasty couldn't accept such logical and progressive idea and deemed him to be nothing more than a disturbing element for the society.

The Development and Implementation of Problem-Based Learning Package in Physical Therapy (물리치료학에서의 PBL 학습교재 개발 및 적용)

  • Hwang, Hyun-Sook;Chung, Jin-Woo;Lim, Jong-Soo
    • Journal of Korean Physical Therapy Science
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    • v.9 no.4
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    • pp.83-94
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    • 2002
  • Within physical therapy education, there has been increased attention to curricula and course that emphasize problem solving, clinical reasoning, and synthesis of information across traditional discipline-specific boundaries. This article describes the development implementation, and outcomes of a problem-based learning course in Physical therapy. The course was designed to help students to integrate the various elements of a physical therapy curriculum and to enhance their abilities to respond to an ever-changing health care environment. An evaluation of the course by the first 50 students who completed it revealed both strengths and weaknesses. Students responded that the course enhanced their professional behavior, including interpersonal communication skills, team work, and follow-through with professional responsibilities. The learning package was developed by the authors and implemented to a college students during three weeks of the first semester of 2001. Most studies which conducted PBL module development were short period or temporary PBL package application and evaluation rather than a whole semester's. While, this study carried on partial integrated PBL curriculum development and application with recomposing content of the two subjects to one subject Physical therapy which includes four PBL packages. This package was developed from a simple concept to complex and partial integrated PBL curriculum application systematically variable learning methods such as discussion, practice, lecture, video. There are 2 classes, each class has 25 students, in the college. Each class has 5 small groups consisting 5 students. Two tutors proceeded discussion charging each class also, they used multiple methods and materials like tutorials, self-directed learning, lecture, and video. The package is 5 grades and 5 hours per week and the rate of discussion, lecture is 4, 1 respectively. One of the most change is the increase of interaction between students and tutors. Whenever students need information and suggestion, they can visit tutors who provide reading materials and guide for the direction of self learning. Therefore, this study describes the PBL package development process and application during one semester recomposing contents of two subjects to Physical therapy concepts. Besides, it will contribute to active application of existing each subject to tutors who intend to convert as PBL methods. The study has significant meaning to show potentiality of partially integrated PBL application, using systematic PBL package development from two subjects contents. However, when students' need of yearning is over the extent of Introduction of Physical therapy and Rehabilitation medicine, tutors should set learning extent. So, there is limitation to attain completely integrated PBL education within one subject, therefore, it is high lighted to proceed development of integrated curriculum to maximize learning effects of PBL. It is exected that partial integrated PBL package development and application will distribute to prosper excellent physiotherapist in practice.

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