• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1638-1641
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• 2015

최근 다양한 공공 데이터가 속속 개방되고 있지만, 지역 내의 범죄 데이터는 통계 데이터 이외에는 공개되지 않고 있다. 이처럼 공공 데이터의 확보가 어려운 경우에는 해당 지역 내의 범죄 관련 모든 온라인 뉴스 기사를 주기적으로 수집하고 범죄 현황에 관한 정보를 자동으로 추출하여 맵(map)에 시각화 하여 보여주는 프레임워크의 개발이 필요하다. 본 논문에서는 프레임워크 개발에 필요한 주요 알고리즘들과 효과적인 시각화 방안을 제안한다. 또한 이미 공개된 군산시의 범죄 발생 통계 자료를 비교하여 제안 시스템의 효용성을 평가한다.

• Korean Journal of Ornithology
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• v.25 no.2
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• pp.101-105
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• 2018

On 22 June 2018, we observed the breeding of the Pied avocet (Recurvirostra avosetta) at landfill sites in Saemangeum, Jeollabuk-do Province. The breeding ground was a temporary swamp, and four juvenile were constantly observed with adult bird. This observation is the first breeding record of Pied avocet (Recurvirostra avosetta) in Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.689-692
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• 2021

This paper is a prior study to improve the efficiency of offloading based on mobile agents to optimize allocation of computing resources and reduce latency that support user proximity of application services in a Fog/Edge Computing (FEC) environment. We propose an algorithm that effectively reduces the execution time and the amount of memory required when extracting optimal moving patterns from the vast set of spatio-temporal movement history data of moving objects. The proposed algorithm can be useful for the distribution and deployment of computing resources for computation offloading in future FEC environments through frequency-based optimal path extraction.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.6
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• pp.576-586
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• 2023

In this study, a numerical particle tracking experiment was conducted to assess the distribution characteristics of freshwater exclusion resulting from the discharge of Gahwa Stream into Sacheon, Jinju, and Gangjin bays, located downstream of the Namgang Dam. The number of particles discharged into Noryang Channel, Daebang Channel, and Changseon Strait was compared by releasing 1000 particles through Gahwa Stream under three discharge conditions: no discharge, discharge during rainfall, and discharge during flood. Evidently, the percentage of particles in the Noryang Channel increased, whereas that in the Daebang Channel decreased as the discharge from the Gahwa Stream increased. Approximately 95% of the material located downstream of the Gahwa Stream generally escaped through the Daebang Channel. However, as the discharge from the Namgang Dam increased due to rainfall, the percentage of particles in the Noryang Channel increased, reaching 45.5% during floods.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.11 no.4
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• pp.133-144
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• 2006

It is investigated using ADCIRC model to find an optimal gate operation in order to maintain target water level of the inner Saemangeum Reservoir. Various developing procedures and river inflows conditions are considered in modeling. For the gate operations, consecutive openings to inflow and outflow, such as once a day, twice a day and once per two days are considered. However water level increases gradually due to river inflows regardless of gate operations. In order to maintain target level 0.0 m, it is recommended to shut down of gate in order to prevent inflows of outer sea water at least once per 6 days for normal riverine inflows and once per 3 days for flood inflows during consecutive operations. Then it is balanced within maximum of ${\pm}0.4m$ of deviations from target level of 0.0 meter.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.4-6
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• 2022

중력식 등표는 내·외적으로 충분한 구조적 안정성을 갖도록 설계되고 있으나, 시공 시 해상공사 특성 상 불가피하게 발생하는 재료 유실은 상당한 구조적 안정성 저해 요소로 작용할 수 있다. 이에 따라, 시공 시 재료 유실을 최소화 할 수 있도록 토목섬유를 활용하는 방안을 제시하였다.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2009.11a
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• pp.268-271
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• 2009

The apartments rapidly has developed since 1960's in South Korea. Nevertheless, peoples take no interest in the exterior colors used in the apartments. For this reason, purpose of this study surveies the colors used in the main buildings, public facilities, playgrounds and the main entrances, and knows differences of each brand and areas in Jeonju and Gunsan. According to the research, YR was higher than any other color, we recognize differences from the brands and the areas. A distinction of brands is variety of materials and colors in the apartments by the small or medium businesses than in those by the big businesses. A difference of area is more diverse both colors and materials in Gunsan than in Jeonju. It is found that Gunsan is more various backgrounds than Joenju. This study researches the harmony of the colors in the apartment complex; however, the cases used in this study are limited numerically.

• Proceedings of KOSOMES biannual meeting
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• 2007.11a
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• pp.77-82
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• 2007

선박의 해난에 의한 해양오염사고 발생시, 해양경찰은 민관 방제세력의 동원 및 방제조치, 방제지원시스템을 운용 등을 통하여 신속하고 체계적인 방제전략을 수립 시행함으로써, 사고로 인한 해양환경 피해를 최소화하고 있다. 본 연구에서는 2006년 7월 전북 군산시 새만금방조제 인근 해상에서 침몰한 700톤급 준설선 GA-P1 호에 대한 선체인양 및 해양오염사고 처리 과정에서 방제지원시스템을 이용한 대응 사례이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.411-413
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• 2022

In this paper, considering the change in the sensing distance according to FoV(Fiele Of View) and the sensing distance according to the reflector, the installation location of the TOF(Time Of Flight) sensor is divided into side part installation and front/rear part installation.

• Journal of Korea Society of Industrial Information Systems
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• v.27 no.4
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• pp.1-10
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• 2022

Attempts to interpret human perspectives using computer vision have been developed in various fields. In this paper, we propose a method for evaluating the walking environment through semantic segmentation results of images from road images. First, the Kakao Map API was used to collect road images, and four-way images were collected from about 50,000 points in JeonJu. 20% of the collected images build datasets through crowdsourcing-based paired comparisons, and train various regression models using paired comparison data. In order to derive the walkability score of the image data, the ranking score is calculated using the Trueskill algorithm, which is a ranking algorithm, and the walkability and analysis using various regression models are performed using the constructed data. Through this study, it is shown that the walkability of Jeonju can be evaluated and scores can be derived through the correlation between pixel distribution classification information rather than human vision.