• 대한원격탐사학회지
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• 제22권5호
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• pp.457-462
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• 2006

Sequential Pattern Mining is the mining approach which addresses the problem of discovering the existent maximal frequent sequences in a given databases. In the daily and scientific life, sequential data are available and used everywhere based on their representative forms as text, weather data, satellite data streams, business transactions, telecommunications records, experimental runs, DNA sequences, histories of medical records, etc. Discovering sequential patterns can assist user or scientist on predicting coming activities, interpreting recurring phenomena or extracting similarities. For the sake of that purpose, the core of sequential pattern mining is finding the frequent sequence which is contained frequently in all data sequences. Beside the discovery of frequent itemsets, sequential pattern mining requires the arrangement of those itemsets in sequences and the discovery of which of those are frequent. So before mining sequences, the main task is checking if one sequence is a subsequence of another sequence in the database. In this paper, we implement the subsequence matching method as the preprocessing step for sequential pattern mining. Matched sequences in our implementation are the normalized sequences as the form of number chain. The result which is given by this method is the review of matching information between input mapped sequences.

• Communications for Statistical Applications and Methods
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• 제26권2호
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• pp.217-238
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• 2019

With the advent of so-called "default" Bayesian hypothesis tests, scientists in applied fields have gained access to a powerful and principled method for testing hypotheses. However, such default tests usually come with a compromise, requiring the analyst to accept a one-size-fits-all approach to hypothesis testing. Further, such tests may not have the flexibility to test problems the scientist really cares about. In this tutorial, I demonstrate a flexible approach to generalizing one specific default test (the JZS t-test) (Rouder et al., Psychonomic Bulletin & Review, 16, 225-237, 2009) that is becoming increasingly popular in the social and behavioral sciences. The approach uses two results, the Savage-Dickey density ratio (Dickey and Lientz, 1980) and the technique of encompassing priors (Klugkist et al., Statistica Neerlandica, 59, 57-69, 2005) in combination with MCMC sampling via an easy-to-use probabilistic modeling package for R called Greta. Through a comprehensive mathematical description of the techniques as well as illustrative examples, the reader is presented with a general, flexible workflow that can be extended to solve problems relevant to his or her own work.

• 한국IT서비스학회지
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• 제20권1호
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• pp.55-65
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• 2021

For smart defense innovation, the key is to apply state-of-the-art technologies of the Fourth Industrial Revolution to national defense. In order to apply state-of-the-art technology to the defense sector, we need to apply and develop technologies to analyze and respond to uncertain future operational environments. To this end, our military is investing a lot of time and effort. To understand future operational environment analysis and to apply and develop our military, we explored the perspectives of operational environment analysis in major countries and studied specific cases of U.S. troops with systematic analysis functions. The U.S. Army has established a cooperative system to analyze future operational environment under the leadership of the Education Command and operates the organization organically. It also utilizes the collective intelligence of expert groups in various fields by utilizing the MSC, and it is time for the Korean military to take the lead in keeping with the era of transformation. To that end, the organization of the U.S. Education Command should be benchmarked and the Korean Future Operation Environment Analysis Organization should be established and operated. Through this study, we have developed an understanding of the future operational environment analysis system of the U.S. Army and presented a plan to apply the ROK MND.

• Asian Journal of Innovation and Policy
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• 제11권3호
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• pp.397-420
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• 2022

This research was conducted by applying a bibliometric analysis to determine the dynamics of research topics from ten percent of research output (international publications) generated by Indonesian scientists from the period of 1945-2021. This study utilizes VOSviewers version 1.6.18 for analysis and visualization of bibliometric networks. The research results indicate that 50.24% of Indonesian international publications are published in the form of articles, with subjects such as: Agricultural and Biological Sciences, Medicine, and Earth and Planetary Sciences as the most dominating subject areas. Regarding the author, Tjia, MO from Bandung Institute of Technology was acknowledged as the top author in terms of the number of publications produced for two periods. The article entitled "Global, regional, and national prevalence of overweight and obesity in children and adults during 1980-2013: A systematic analysis for the Global Burden of Disease Study 2013" (Ng et al., 2014) became the most cited one.

• Asian Journal of Innovation and Policy
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• 제12권1호
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• pp.131-154
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• 2023

This study investigates the productivity of Indonesian social scientists during the COVID-19 pandemic, with a particular concentration on their contributions to COVID-19 prevention and management. By categorizing social science research according to themes such as authors' gender, authors' institution of origin, forms of collaboration, and journal quality, this study examines the patterns and factors that influence research output. Using information from the Scopus database, 1,071 journal articles were analyzed in total. The findings indicate that collaborations with foreign researchers considerably improve productivity and publication quality, with Malaysian and Australian institutions serving as the most active partners. Nevertheless, there are gender disparities, as female authors write and are cited less frequently than male authors. The study stresses the importance of increasing international collaboration among Indonesian authors and implementing affirmative action policies to support and empower female researchers. This study contributes to the existing body of knowledge by providing policymakers, funding agencies, and academic institutions with recommendations for fostering a more inclusive and influential research environment in Indonesia.

• 한국콘텐츠학회논문지
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• 제22권2호
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• pp.665-681
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• 2022

본 논문은 미래 디스토피아 사회에 대한 재앙의 상상력을 구현한 한국 SF 영화 <설국열차>와 <승리호>를 비교·분석했다. 서사 전략을 살펴보면, 두 영화는 공통적으로 미래사회를 지구환경의 위기가 일상화되고 빈부격차가 극단적으로 심화된 자본주의 사회로 재현하고 있다. 인류를 구원함과 동시에 멸망시키는 천재 과학자가 출현하고 과학기술-자본을 독점한 지배권력이 등장한다. 그리고 이에 맞서는 평범한 주체들로 구성된 저항 세력을 내세운다. 하지만 두 영화는 이와 같은 표층서사의 유사성에도 불구하고 기저의 심층 서사에서 미래사회를 바라보는 시각, 특히 자연, 과학기술 그리고 인간-비인간 행위자에 대한 인식 차이를 드러낸다. 본 논문은 이를 작품속 사물(오브제)의 구성방식과 그 내러티브 기능에 대한 분석을 통해 조명했다.

• 한국가구학회지
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• 제27권3호
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• pp.175-184
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• 2016

Art Furniture is a terminology of creative and developed activity related Art in the field of furniture design. In a broad sense, the extent of Art furniture reaches from humanities to technology because Art includes them. Due to Postmodernism, designers who were involving Art furniture started to fuse various studies including high technology to achieve their own goals. To illustrate with the characteristic of high technology, I compare between low technology and high technology. Even though high technology are used both commercial furniture and Art furniture, the latter has been utilized high technology in a more creative and experimental way to develop experimental furniture design. In contrast, in order to earn economic profit, there is no unnecessary risk for commercial furniture. Considering information revolution which is deeply related with high technology, Art furniture designers could get information easily about other fields and make multiple connections of different kinds of people and markets. As a result, a combination between Art furniture and high technology has distinctive features. At first, high technology was applied to craft among Dutch furniture designers. After that, designers began to lay out the method of high technology and pushed the boundary of Art furniture thanks to experts and scientists. In addition, there was a designer who have conducted a series of research as a scientist adopting scientific methodology. In doing so, Joris Laarman could obtain a revolutionized work which could contribute society. In conclusion, combining Art furniture and high technology leads the definition of design from deciding physical shapes to directing and organizing processes.

• 비교문화연구
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• 제22권
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• pp.7-27
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• 2011

This article is devoted to little-studied play of M.A. Bulgakov "Adam and Eve". By the end of 1920's - the beginning of 1930's soviet society is differentiated again, its construction is rebuilded. In the new condition drama is needed as much as possible. Drama on the stage is ideal model for instruction of "Mass". Thereupon soviet society asked "New Hero", "New play", which can rebuild soviet citizen in the new construction of government. Thereby the play of M.A. Bulgakov "Adam and Eve" is created by order of soviet society. In this play typical soviet people are represented: Adam Krasovsky(engineer), Daragan(pilot-terminator), Ponchik-Nepobeda(writer), Zahar Markizov(proletarian-baker). They are different from each other by their occupation and formation, but they have same consciousness and they think identically. Bulgakov makes stand such problems: impersonality and unfreedom of human being in the government of communism. Bulgakov, using Parody, doubt the possibility of realization of utopia of Soviet government. Bulgakov show to us that Adam Krasocsky is not real Adam-first human being. In the play we can see the real Adam is the scientist-intelligent Efrosimov. Bulgakov change the place of Ponchik with the place of Markizov. The idiot and the fool is recognized not Markisov-drinker, tyrant, but Ponchik-writer. After the disaster Markisov, reading a Bible, is changing and by the end of play he started writing his own novel. Indeed if Ponchik wrote hoked-up novel, Markisov writes a real own history. Request of Leningrad Theater for Bulgakov to write about the future war comes from the spirit of the time. But Bulgakov in this play "Adam and Eve" could insist that the "Life" is a supreme value.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2016년도 제50회 동계 정기학술대회 초록집
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• pp.102-102
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• 2016

Water, which is most abundant in Earth surface and very closely related to all forms of living organisms, has a simple molecular structure but exhibits very unique physical and chemical properties. Even though tremendous effort has been paid to understand this nature's core substance, there amazingly still lefts much room for scientist to explore its novel behaviors. Especially, as the scale goes down to nano-regime, water shows extraordinary properties that are not observable in bulk state. One of such interesting features is the formation of nanoscale bubbles showing unusual long-term stability. Nanobubbles can be spontaneously formed in water on hydrophobic surface or by decompression of gas-saturated liquid. In addition, the nanobubbles can be generated during electrochemical reaction at normal hydrogen electrode (NHE), which possibly distorts the standard reduction potential at NHE as the surface nanobubble screens the reaction with electrolyte solution. However, the real-time evolution of these nanobubbles has been hardly studied owing to the lack of proper imaging tools in liquid phase at nanoscale. Here we demonstrate, for the first time, that the behaviors of nanobubbles can be visualized by in situ transmission electron microscope (TEM), utilizing graphene as liquid cell membrane. The results indicate that there is a critical radius that determines the long-term stability of nanobubbles. In addition, we find two different pathways of nanobubble growth: i) Ostwald ripening of large and small nanobubbles and ii) coalescence of similar-sized nanobubbles. We also observe that the nucleation and growth of nanoparticles and the self-assembly of biomolecules are catalyzed at the nanobubble interface. Our finding is expected to provide a deeper insight to understand unusual chemical, biological and environmental phenomena where nanoscale gas-state is involved.

• 대한지구과학교육학회지
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• 제10권2호
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• pp.214-225
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• 2017

지구크기에 대한 최초의 정확한 측정은 기원전 230년, 헬레니즘의 과학자인, 에라토스테네스 (276-195 B.C.)에 의하여 이루어졌다. 역사적으로 수학적 추상화는 유럽의 고대 그리스인의 천재성을 보여주는 좋은 예이다. 그 당시에는 상상하기 어려운 태양이 멀리 떨어져 있기에 태양광선이 평행하게 지구에 입사한다는 전제를 요구하는, 논리적이고 과학적인 기법의 에라토스테네스의 과학적 방법의 성공이었다. 중요한 것은 간단한 수학적 비례식을 성립하기 위해서는 지구가 둥글고, 광선이 지구에 나란하게 들어온다는 가정이 필요하였다. 즉 천상으로부터 지상으로 유클리드 기학학이 연결된다는 내용이다. 그것은 최초로 태양중심을 주장한 아리스타쿠스의 제안을 받아들여야 했고, 아리스토텔레스의 자연관인 우주는 아름답고 우아하다는 사상에 기반을 두어 지구는 구처럼 대칭적이라는 것이다. 우리는 이러한 가정들을 현대가 아닌 그 당시 어떻게 정당화 했는지를 탐색하는 것이다. 또한 실험의 미적 관점에서 에라토스테네스의 지구측정의 중요한 특징은 단순성에 있다는 것을 강조하는 것이다.