• The Korean Journal of Applied Statistics
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• v.33 no.2
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• pp.171-184
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• 2020

Major League Baseball (MLB) records and releases the trajectory data for every baseball pitch, called the PITCHf/x, using three high-speed cameras installed in every stadium. In a previous study, the quality of the pitch was assessed as the expected number of bases yielded using PITCHf/x data. However, the number of bases yielded does not always lead to baseball scores, or runs. In this paper, we assess the quality of a pitch by combining baseball analytics metric Run Expectancy and Run Value using a Random Forests model. We compare the quality of pitches evaluated with Run Value to the quality of pitches evaluated with the expected number of bases yielded.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.3
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• pp.1204-1212
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• 2011

This article analysis the obstacles and motivating factors of joint ventures between South Korean and German companies. As a theoretical frame is used the resource based view to explain motivating as well as hindering factors that influence joint ventures between Korean and German firms. The theoretical findings are tested with a sample of approximately 200companies that operate in the machinery industry. The data were provided by the German Machinery Industry Association and the Korean Association of Machinery Industry. The results of the findings are used to derive implications for governmental policy makers.

• Korean Journal of Construction Engineering and Management
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• v.5 no.1 s.17
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• pp.80-87
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• 2004

This paper presents an analysis of construction project management from supply chain management perspective to gain insight from all constituents and to identify areas of improvement. In order to suggest opportunities for improvement, interviews with the members of a typical urban office building project in US were held. Based on that, a qualitative analysis of construction projects is presented. Focusing on electrical and mechanical sub-systems, this study illustrates the roles of subcontractors, suppliers, distributors, and manufacturing representatives as well as the complexity that a general contractor fares in managing its supply chain. The author$^{\circ}\phi$s recommendations are focused on process restructuring and automation, which include some quantifiable performance measures, incentives, and their alignment with each other

• Journal of Korean Library and Information Science Society
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• v.40 no.4
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• pp.311-326
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• 2009

This study is to identify the concept of the digital curation, archiving and preservation resulted in the development of digital information resources, and is to suggest the roles and strategies of the digital curation in university library based on the lifecycle information process of the digital information resources and the examples of the digital curation from domestic and aborad. I have designed a curation model and the preservation of the digital resources in university library by using creators, curators, and users who stand on the basis of the lifecycle. As a result, I have built up a system that is to be a basis to share resources and cooperation among universities.

• Journal of Korean Library and Information Science Society
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• v.43 no.4
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• pp.183-199
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• 2012

This study is to develop an operating model of Conspectus for online resources by using mechanistic quality factor. Based on some empirical statistics about resource use behaviour such as collection rate, use rate, search rate, the mechanistic quality factor was calculated and applied to each subject by adjusting its acquisition level of Conspectus. according to the result of this study, Acqusition levels of the subject such as technical science which shows higher in use rate, and those such as history and social science which show higher in search rate, should be adjusted to a higher acquisition level, and those of others to the same or a lower level.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.2
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• pp.485-500
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• 2018

As the size of the system and network environment grows and the network structure and the system configuration change frequently, network administrators have difficulty managing the status manually and identifying real-time changes. In this paper, we suggest a system that scans dynamic network information in real time, scores vulnerability of network devices, generates all potential attack paths, and visualizes them using attack graph. We implemented the proposed algorithm based attack graph; and we demonstrated that it can be applicable in MTD concept based defense system by simulating on dynamic virtual network environment with SDN.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.06a
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• pp.281-283
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• 2014

국제수로기구는 항해안전과 수로정보 활용 증진을 위해 S-57 표준을 한계점을 개선하고 최신 GIS 표준을 반영하여 S-100 표준을 개발한 바 있다. 해사안전과 관련된 각 국제기구와 표준그룹에서는 S-100 표준을 기반으로 다양한 수로데이터 제품표준(S-10X) 개발을 논의 중에 있으며 가시적인 결과를 도출하고 있으므로, 이를 기반으로 하는 차세대 ECDIS에서는 기존의 자료 구조와 주요 기능의 변경이 예상되고 있다. 한편, 국제해사기구에서 추진하고 있는 e-Navigation 전략에서 e-Nav 정보표준(CMDS) 개발 시작점으로 S-100이 선정됨에 따라, S-100의 핵심 개념이 e-Nav 정보엔진 설계에 반영될 것으로 예상되므로, 본 연구에서는 S-10X 사례 분석을 통한 e-Navigation 정보엔진 구조를 설계하고자 하였다. 현행 전자해도 시스템 구조를 분석하여 주요 특징을 정리 하였으며, 각 국제기구에서 논의하고 있는 S-10X 표준 내역을 분석하여 e-Navigation 정보엔진에서 고려되어야 하는 자료의 유형과 종류를 벡터형 데이터, 그리드형 데이터, TIN형 데이터, 이미지형 데이터로 정리 하였고, 이를 토대로 e-Navigation 정보엔진 구조설계안을 도출하였다.

• The Journal of the Korea Contents Association
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• v.8 no.7
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• pp.112-119
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• 2008

Today, changing to knowledge information society, creativity education is thought important in each educational institution according as the importance of creativity is emphasized more. But it focused on development of intelligence that put special stress on scholastic subject. Therefore, this paper wished to present direction of development of educational game that can develop creativity and synthetic ability to solve problem through learner's voluntary interest and participation. As a result, the researcher drew element of fun and component of storytelling of educational game that was based on design of leaning for development of creativity, a previous research, that was based on the concept of creativity and theory of multiple intelligence, and presented a development example with storyboard, interface design and element of graphic for the production of prototype of educational game, after design game structure.

• The Journal of the Korea Contents Association
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• v.14 no.11
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• pp.575-583
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• 2014

Roland Barthes views a myth as a chain of connotative concepts that are mutually connected. For him, a myth appears through a chain connotation that is mutually related, due to the first-stage signification system. In other words, the connotation of a particular scene is already inherent in a culture in the form of social convention or social values before it is made. In the case of Disney animation, as mentioned Barthes, it has also two layers of denotation and connotation for signification. However, Disney animation shows the tendency that seek the denotative representation and the direct communication, based on the typified character, to the representation and delivery of the myth that is inherent. Therefore, the tendency of denotative signification is seen Disney animation can be said as a branch of research methodology for the approach to the aesthetics of Disney animation.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.35 no.7
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• pp.575-580
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• 2007

During the conceptual design phase of a canard type high maneuverable aircraft, the low speed small scale wind tunnel test was conducted to investigate the high angle-of-attack static stability of the aircraft. In this study, 1/50th scale generic canard-body-wing model was used for the small scale wind tunnel test. For the analysis of static stability including high angle-of-attack nonlinear characteristics, the vertical tail effects were studied due to canard deflections. In addition, the nose chine effects were studied at high angle-of-attack. Based on the results obtained from the experimental study, the configuration change effects for canard type aircraft on high angle-of-attack static stability have been able to analyze.