• Korean Journal of Remote Sensing
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• v.37 no.5_1
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• pp.1187-1198
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• 2021

Sea wind isrecently drawing attraction as one of the sources of renewable energy. Thisstudy describes a new method to produce a 10 m resolution sea wind field using Sentinel-1 images and low-resolution NWP (Numerical Weather Prediction) data with artificial intelligence technique. The experiment for the South East coast in Korea, 2015-2020,showed a 40% decreased MAE (Mean Absolute Error) than the generic CMOD (C-band Model) function, and the CC (correlation coefficient) of our method was 0.901 and 0.826, respectively, for the U and V wind components. We created 10m resolution sea wind maps for the study area, which showed a typical trend of wind distribution and a spatially detailed wind pattern as well. The proposed method can be applied to surveying for wind power and information service for coastal disaster prevention and leisure activities.

• KIPS Transactions on Software and Data Engineering
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• v.8 no.8
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• pp.323-330
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• 2019

In order to improve the level of the IT organization, CMMi played a lot of roles in improving the IT efficiency and quality step by step. In a university organization if you use a customized IT governance framework for the concept of CMMi, it will be a university IT governance to realize the vision of the university. In this paper, we propose Staged Framework for the university developed for applying to university with reference to this staged model of CMMi. The university has applied its own process step by step and it can be uses in the university field. So it can be applied to university IT plan and budget in compliance with not only the person in charge of IT service center but the person in charge of university headquarters. The staged framework is classified into the maturity and process of university IT project and suggests ways to apply it to the improvement of university IT system levels.

• Journal of Korea Spatial Information System Society
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• v.11 no.1
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• pp.157-168
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• 2009

Geospatial information, which deeply has an effect on our life, have been evolved as intelligent geospatial information in Ubiquitous era. Also, Various services are introduced using the intelligent geospatial information. However, there is no classification system, for understanding the intelligent geospatial information services, considering any developers and users. It needs to be classification system to classify these services. In this paper, we introduced a concept of intelligent geospatial information and developed a service classification matrix regarding to the features of the services. This service classification matrix has three scales; service domain, service intelligent level, and geo-location accuracy. The propose of this matrix can be utilized in two aspects. First, the matrix can improve the reality that doesn't reflect actual demands for the services. Second, the matrix can present the goal of the new services or the development direction. The matrix can be utilized to the geospatial industry as creating the new blue ocean services. However, the service classification matrix needs to modify and complement to have no anything wrong when the various services are applied to the matrix. In the long run, the matrix has to be utilized as a material to make out a service roadmap or TRM(Technical Reference Model).

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2006.05a
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• pp.153-158
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• 2006

The emergence of ubiquitous autonomic computing and network environment will change the service architecture information system which will be a new application area in SCM/logistics systems. In this study we surveyed the technical trend map of ubiquitous and its application in SCM/logistics support system design. We described the evolutional model of ubiquitous computing community for SCM/logistics system. It is consisted of three view points; self-growing, autonomic, and context-aware, which will allow the decision makers to be benefited from web and mobile technology and are useful for proactive SCM/logistics support system. Finally, we suggested a cooperative research planning for the development ubiquitous system between the government research center, university, and industry research activities.

• Journal of Ocean Engineering and Technology
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• v.11 no.4
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• pp.221-226
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• 1997

This study was carried out for the hull form development of G/T 340ton class high speed fishery patrol ship by Chosun University at the Circulating Water Channel cooperatively with Korea Maritime Service. Same size of 15knots class fishery patrol ship was selected as a parent form (Model number : CU-015), and modified fore and after body to be suitable for the operation at 20 knots. To minimize the breaking wave in the vicinity of fore body at high speed zone, high bulb nose and slender fore body hull form was chosen as an initial condition. Meanwhile, to ensure the engine room space keeping high resistance-propulsion performance, U-type stern hull form was developed.

• Proceedings of the KSRS Conference
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• 2007.10a
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• pp.317-320
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• 2007

This research focuses on a network based data distribution and visualization system of Multi-functional Tran-port SATellite (MTSAT). Institute of Industrial Science (IIS) and Institute of Earthquake Research Institute (ERI) both at University of Tokyo have been receiving, processing, archiving and distributing of MTSAT imagery with a direct receiving of High Rate Information Transmit (HRIT) since October 2006. A software package, mtsatgeo, is developed including radiometric correction, geometric correction and spatial subset, and they are available on a web-based data distribution and processing service accessed at http://webgms.iis.u-tokyo.ac.jp/.

• Proceedings of the KAIS Fall Conference
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• 2008.11a
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• pp.281-283
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• 2008

오늘날 대학환경은 과거에 비해 급변해 가고 있다. 특히, 대학경영의 어려움을 극복하기 위해서 대학경쟁력 강화 방안과 대학 이미지 제고와 같은 중장기 발전계획을 수립하고 있다. 특히, 학생 및 대학에서는 취업률 목표에 사활을 걸고 이는 실정이다. 기존의 취업안내 및 공지하던 형태에서 학생에게 맞는 맞춤형 취업 서비스 모델이 요구되는 실정이다. 이에 많은 대학에서는 유비쿼터스 캠퍼스 (u-Campus) 구축을 통해 대외적인 대학이미지 제고와 학생에게 보다 편리한 서비스를 제공하기 위해 노력하고 있다. 그러나, 현재 구축되고 있는 유비쿼터스 캠퍼스의 서비스 환경은 학생들을 위한 효율적인 서비스가 제공되지 못하고 있으며 신기술의 도입이나 연구개발을 통한 기술적 성격이 짙은 형태로 구축되고 있는 현실이다. 이에 본 논문에서는 유비쿼터스 캠퍼스를 구성하는 가장 중요한 요소인 모바일을 이용한 학생 중심의 맞춤형 취업 서비스 모델을 제안한다. 제시한 모델을 기반으로 유비쿼터스 캠퍼스의 여러 서비스 등에서도 활용할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.1298-1301
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• 2012

국내 유시티 개발에 있어서는 다양한 교통정보서비스들을 계획하고 구축하고 있다. 그러나 표준화된 서비스 모델이 제시되어 있지 않아서 서비스 내용이 중복되거나 각 서비스간 연계에 있어서 효율적으로 이루어지지 않고 있다. 본 연구에서는 기존 유시티 구축사례들을 중심으로 실시간 교통서비스들을 조사 분석하여 효과적인 실시간교통서비스 통합모델을 제시하였다. 아울러 그에 따른 장비선정 및 구축 가이드라인을 제안하였다. 이에 따라 추후 유시티를 구축할 때 표준화된 서비스 모델에 따라 비용효과 및 연계의 효율성을 기대할 수 있다.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.3
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• pp.42-49
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• 2021

As cyber attacks become more intelligent, there is difficulty in detecting advanced attacks in various fields such as industry, defense, and medical care. IPS (Intrusion Prevention System), etc., but the need for centralized integrated management of each security system is increasing. In this paper, we collect big data for intrusion detection and build an intrusion detection platform using deep learning and CNN (Convolutional Neural Networks). In this paper, we design an intelligent big data platform that collects data by observing and analyzing user visit logs and linking with big data. We want to collect big data for intrusion detection and build an intrusion detection platform based on CNN model. In this study, we evaluated the performance of the Intrusion Detection System (IDS) using the KDD99 dataset developed by DARPA in 1998, and the actual attack categories were tested with KDD99's DoS, U2R, and R2L using four probing methods.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1158-1161
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• 2011

고령화 사회로 진입하고 있는 시점에 고령인구에 대한 복지정책 및 사회전반적인 대응 방안이 모색되어져야할 시기이다. 특히, 고령인구 특성상 의료문제를 해결할 수 있는 효과적인 방법들의 연구가 시급하다. 그러한 문제를 해결하는 방안으로 U-헬스분야와 IT 분야 및 건설분야의 융합을 통한 효율적인 헬스케어 서비스 모델 개발이 요구되고 있다. 본 연구에서는 융합모델의 성공적인 결과 도출을 위한 모델의 구성과 추진 전략 등을 제안하였다.