• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.335-337
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• 2014

최근에 디지털융합에 대한 연구가 활발히 진행되면서 디지털융합의 한 분야인 전자문화지도는 연구자들의 학문연구방법으로도 활용되고 있다. 전자문화지도는 특정지역의 문화를 나타내기 위해 지도를 인터페이스로 활용하여 점, 선, 면 등 다양한 방법으로 지도위에 정보화된 데이터를 나타낸다. 본 논문에서는 지도의 특성을 효율적으로 활용할 수 있도록 특정지역연구를 위한 연구방법으로 활용할 수 있는 지식지도시스템을 설계한다. 세부적으로 해외지역 가운데 지중해지역을 중심으로 시스템을 설계하며 지중해지역과 관련된 연구결과물에 대한 요약정보를 주제, 지역, 시간값의 매핑을 통해 제공한다. 본 시스템은 학문동향에 관한 정보를 효율적으로 제공함으로써 인문 지역학 연구자들의 연구방법으로 활용하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.445-447
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• 2016

SQLite, Realm, etc. are database engines which are suitable for small devices that have large resource restriction and are used a lot in mobile devices based on Linux. These engines are open source programs and have advantages which are lighter weight and faster speed than general purpose databases. This paper implements performance test program and performs performance experiment of SQLite database to test search efficiency in Linux environments. The experiment is processed by comparison with the results of a Oracle database working out at the same environment.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.431-433
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• 2014

최근에 IT융합에 대한 관심이 높아지는 시점에서 문화지도DB, 전자문화지도와 같이 학제 간 연구의 성격을 띠는 학문에 대한 연구 또한 활발하다. 전자문화지도는 기본적으로 다양한 문화적 양상을 점, 선, 면, 기호 등을 활용해 지도위에 나타내며 사용자는 주제, 공간, 시간 값의 조작을 통해 세 가지 값이 연계된 정보를 획득할 수 있다. 본 논문에서는 전자문화지도 기반의 학술지도를 구현한다. 본 시스템은 효율적인 학문동향 파악 및 학술 정보제공 시스템으로 활용 가능할 것으로 판단되며 세부적으로 인문, 지역학을 연구할 수 있는 방안으로 활용하고자 한다.

• Iberoamérica
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• v.14 no.2
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• pp.119-145
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• 2012

This paper deals with the study of how the 'birth' of Brazil happened and how the European utopianism was represented in Brazilian Informative Literature of the sixteenth century, that is, the first literary manifestations of Brazil. There were at that time the Renaissance humanism and the scientific development that encouraged dozens of illustrious navigators for new discoveries ultra-seas, like Christopher Columbus who discovered America. Writings such as Letter to King Manuel of Pero Vaz de Caminha, had mostly an intention to inform Europeans about climates, indians and possibility to discover gold or silver. Main narrative characteristics were uncertainty and exageration, which ironically helped to attract more discoveries and explorations in the New World. Americo Vespucio's Mundus Novus inspired Thomas More to write Utopia, in which the author described through a Portuguese sailor the ideal but unrealizable society. Utopianism regarding the imaginary island of 'Brazi', well known among Europeans since long ago, may have influenced the current name of the country: 'Brazil'. On the other hand, utopianism shown in Brazilian Informative Literature worked as a justification for Europeans to explore and colonize the New World.

• Iberoamérica
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• v.13 no.1
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• pp.1-39
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• 2011

O presente estudo tem como objetivo principal analisar a influência de vocabulários de origem africana em uso no português brasileiro(PB). A fim disso, observamos os tipos e as características das línguas africanas. E ainda, para compreender a situação atual de uso desses termos no Brasil, apresentamos um panorama do registro dos vocábulos de origem africana no PB, e organizamos os vocabulários em três categorias, especialmente, nos registros dos séculos XIX e XX. Em primeiro, a categoria 1 pode ser usada em qualquer interação social, contrastando com as outras duas categorias. Em segundo, a categoria 2 é constuída de termos informais, de uso coloquial que, eventualmente, dependendo da situação, são substituídos por outras. Por último, a categoria 3 é de termos marcadamente informais, de uso restrito. Através disso, comparamos os registros anteriores com os dados obtidos da nossa pesquisa. Com os resultados, podemos reconhecer a estabilidade e o dinamismo do uso desses termos hoje no PB.

• International Area Studies Review
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• v.21 no.2
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• pp.197-218
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• 2017

The research ais to examine the relationship among service factors, customer's consumption value and revisit intentions in the multiplex cinema industry focusing on multiplex cinema service in Korea and Vietnam. This research also aims to compare the influence of service factors on consumption values and revisit intention between customers in Vietnam and Korea. Data using for this research were collected in Ho Chi Minh, Vietnam and Seoul, Korea through both offline and online survey. Research findings suggest that service factors significantly influence utilitarian values and hedonic values, then both hedonic and utilitarian value have a significant influence on customer's revisit intention in multiplex cinema. Specifically, utilitarian value shows a greater influence on revisit intention in Korea whereas hedonic value shows a greater influence on revisit intention in Vietnam.

• The Journal of the Korea Contents Association
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• v.21 no.9
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• pp.164-175
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• 2021

The purpose of this study is to develop the 'Kkondae Scale' and verify its validity. For this purpose, three constructive concepts (attribution error, cognitive rigidity, and one-way communication) were derived through expert interviews, prior research and literature analysis, and 15 preliminary questions were selected. In addition, a preliminary scale was developed by modifying or adding items to conform to each constructive concept through expert content validity evaluation. Next, as a result of the exploratory factor analysis of about 250 adults, a three-factor structure model was derived. As a result of the confirmatory factor analysis on the preliminary scale for about 401 adults, it was confirmed that the fit of the three-factor structure was good. As a result of convergence and discriminatory validity analysis, it was confirmed that the developed scale was a valid tool to measure Kkondae by showing appropriate correlations with listening attitude, empathy, acceptance of others, and intellectual humility. Finally, based on the results of this study, the significance, limitations, and future research direction of the study were discussed.

• The Korean Journal of Applied Statistics
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• v.32 no.1
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• pp.139-148
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• 2019

This study proposed a multiple intervention time series model to predict KTX passenger demand. In order to revise the research of Kim and Kim (Korean Society for Railway, 14, 470-476, 2011) considering only the intervention of the second phase of Gyeong-bu before November of 2011, we adopted multiple intervention seasonal ARIMA models to model the time series data with additional interventions which occurred after November of 2011. Through the data analysis, it was confirmed that the effects of various interventions such as Gyeong-bu and Ho-nam 2 phase, outbreak of MERS and national holidays, which affected the KTX transportation demand, are successfully explained and the prediction accuracy could be quite improved significantly.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.1
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• pp.29-35
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• 2023

In this paper, we propose a SW-EDU bot, a chatbot learning model for coding education by using a chatbot system. The same scenario-based models are created on the basis of Dialogflow and Kakao i Open Builder, which are representative chatbot builders. And then a SW-EDU bot is designed and implemented by selecting the builder more appropriate to our purpose. The implemented chatbot system aims to learn effective learning methods while encouraging self-direction of users by providing learning type selection, concept learning, and problem solving by difficulty level. In order to compare the usability of chatbot builders, five indicators are selected, and based on these, a builder with a comparative advantage is selected, and SW-EDU bot is implemented based on these. Through usability evaluation, we analyze the feasibility of SW-EDU bot as a learning support tool and confirm the possibility of using it as a new coding education learning tool.

• KIPS Transactions on Computer and Communication Systems
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• v.8 no.3
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• pp.65-72
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• 2019

HPC(High Performance Computing) is the computing system that connects a number of computing nodes with high performance interconnect network. In the HPC, interconnect network technology is one of the key player to make high performance systems, and mainly, Infiniband or Ethernet are used for interconnect network technology. Nowadays, PCIe interface is main interface within computer system in that host CPU connects high performance peripheral devices through PCIe bridge interface. For connecting between two computing nodes, PCIe Non-Transparent Bridge(NTB) standard can be used, however it basically connects only two hosts with its original standards. To give cost-effective interconnect network interface with PCIe technology, we develop a prototype of interconnect network system with PCIe NTB. In the prototyped system, computing nodes are connected to each other via PCIe NTB interface constructing switchless interconnect network such as ring network. Also, we have implemented prototyped data sharing mechanism on the prototyped interconnect network system. The designed PCIe NTB-based interconnect network system is cost-effective as well as it provides competitive data transferring bandwidth within the interconnect network.