• 한국군사과학기술학회지
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• 제27권2호
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• pp.256-264
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• 2024

In the last 10 years, AI has made rapid progress, and image classification, in particular, are showing excellent performance based on deep learning. Nevertheless, due to the nature of deep learning represented by a black box, it is difficult to actually use it in critical decision-making situations such as national defense, autonomous driving, medical care, and finance due to the lack of explainability of judgement results. In order to overcome these limitations, in this study, a model description algorithm capable of local interpretation was applied to the inception network-derived AI to analyze what grounds they made when classifying national defense data. Specifically, we conduct a comparative analysis of explainability based on confidence values by performing LIME analysis from the Inception v2_resnet model and verify the similarity between human interpretations and LIME explanations. Furthermore, by comparing the LIME explanation results through the Top1 output results for Inception v3, Inception v2_resnet, and Xception models, we confirm the feasibility of comparing the efficiency and availability of deep learning networks using XAI.

• 농촌지도와개발
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• 제15권3호
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• pp.461-497
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• 2008

The objective of the study was to evaluate the impact of the Call System of agricultural extension services in Korea. The respondents were satisfied on the speedy solution (74.5%), consultation (88.4%), and accessibility (79.7%) of the call system. However, satisfaction of farmers on in-depth consultation was higher (74.3%) than the satisfaction rated by the public servants of RDA (48.9%). Both groups replied positively (70.4%) on the need for expansion of the call system. The analyses of the results leads to a conclusion that there is a need to increase marketing on the importance of RDA's Call System to customers of agricultural extension and to improve accessibility through expansion of the system in other areas. These could solve the decreasing number of extension professionals and improve the quality and efficiency of extension services. These analyses may be useful as bases for a nationwide Call System that connects the center with other districts and for planning a renovation of information-oriented agricultural extension services. The issue that needs improvement is to abandon the grounds of agricultural technology information provider and respond to the customers' needs efficiently by building an established Call System which can minimize the side effect of the trends of reforming and downsizing the organization. It is needed to develop a unified management Call System of agricultural technology information that could provide real-time information, and database the results simultaneously for use as feedback to the Rural Development Programs. Related laws and policies need to be improved to establish a nationwide information network that maximizes the current network in agricultural regions to spread information, to provide institutional support, and to encourage development of training system and research and development by concerned institutes.

• 수산해양기술연구
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• 제44권3호
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• pp.218-228
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• 2008

This paper describes on the real-time tracking of ship's dynamic behavior by AIS information in the coastal waters. The AIS data was received at a land station by using the antenna of AIS receiver mounted on the rooftop of the laboratory, Pukyong National University (PKNU), Busan, Korea, and stored as a NMEA format of serial output sentence of VDM(VHF Data-Link Message) and displayed on the ENC(Electronic Navigational Chart) of a PC-based ECDIS. In this study, the AIS receiver was mainly used to obtain the dynamic information that is necessary to evaluate and track the movement situation of training ship "KAYA" of PKNU in the coastal waters. The change of position with time for the ship turning under the rudder angle of port $30^{\circ}$ was correctly tracked with the turning circle of 940 m in diameter on the ENC of a PC-based ECDIS. Then, the dynamic information of the AIS system was updated every 6.29 seconds under the turning situation for the speed of 10.9 knots and every 21.65 seconds under the situation running at the speed of 11.05 knots on the straight line route of $155^{\circ}$, respectively. In case of AIS target tracking in the inshore zone behind large topographical obstructions, such as mountain and apartment buildings, the update rate of dynamic information was irregularly changed by the existence of land obstacles. However, the position tracking by AIS information under the situation existing no sea obstructions was achieved in real or near real-time and the instant presentation of course alternations for the ship was correctly monitored by using a PC-based ECDIS. From these results, we concluded that the PC-based ECDIS technology and methodology combined with the AIS information can be easily extended and applied to the surveillance and management for the fishing operation of fishing vessels in the coastal zone and in the EEZ fishing grounds.

• 한국문헌정보학회지
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• 제50권1호
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• pp.353-375
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• 2016

"디지털 패러독스"가 "조용한 위기"로 우리의 미래 세대를 위협한다는 심각한 우려가 있으나 이미 디지털 문화속에 살고 있는 우리는 디지털 매체들과 기존의 다양한 정보매체들의 차이와 특성을 파악하여 효과적으로 학습에 활용해야 한다. 본 논문의 목적은 정보기반 의미 있는 학습에 대한 이론적 고찰을 통해 이를 적용한 학교도서관 학습 코먼스(Learning Commons)를 제안하는 것이다. 학습을 위해 다양하고 풍부한 정보와 매체들을 다루는 학교도서관의 중요성을 전제하여 정보와 학습의 밀접한 연관성, 매체와 학습의 밀접한 연관성, 정보 활용을 통한 의미 있는 학습의 개념을 살펴보고 학교도서관 프로그램의 초점은 정보열람과 접근이 아닌 학습이어야 한다는 학습 코먼스의 개념을 학교도서관에 적용 및 분석하였다. 본 논문이 디지털 시대의 학교도서관프로그램 핵심인 정보기반 학습에 의미 있는 학습을 위한 학습 코먼스의 설계를 지원하는 이론적 근거가 되기를 기대한다.

• International Journal of Computer Science & Network Security
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• 제22권11호
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• pp.43-50
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• 2022

A comparative analysis of the state and results of the functioning of the education system of Ukraine with the national educational systems of the USA and Great Britain was carried out. Based on which we found out similar and different in the process of developing the system of training specialists in higher education institutions of the USA, Great Britain, and Ukraine. Describing the main quantitative indicators of education in the UK, USA and Ukraine, we found common features and distinctive features. Consideration in the comparative aspect of trends in the development of higher teacher education in the United States, Great Britain and in Ukraine gives grounds for conclusion. For these countries, such groups of norms as types of educational institutions, forms of Education; introduction of a unified system of credit units in order to create conditions for broad mobility of students; availability of different levels of training; study of the best experience of educational activities of other states and its introduction into the educational process in combination with the cultural traditions of Ukraine coincide. Describing the main quantitative indicators of education in the analyzed countries, we found distinctive features.Teacher development systems in the UK, USA and Ukraine are compared. It was found out that the use of methods of Great Britain and the United States on the organization of independent work in the process of professional development of teachers will have a positive impact on training in the system of advanced training of teachers in Ukraine. The article examines the information culture of future specialists, which is based on knowledge about the information environment, the laws of its functioning and development, and the perfect ability to navigate the limitless modern world of information.

• 한국지리정보학회지
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• 제7권3호
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• pp.90-98
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• 2004

연안 양식어장의 정보 관리에 실용적인 지리정보시스템(GIS)을 적용함으로써 어업종사자와 연안 관리자에게 실현 가능한 관리방안을 제시하고 수산업 발전을 위한 유연한 의사결정의 기반을 마련하고자 하였다. 연안 양식어장의 효과적 관리는 경제적 실행 가능성과 운영비용에 영향을 미치며 양식 대상생물의 생산 및 사망률과도 관계가 있으므로 매우 중요하다. GIS는 양식어장 정보의 효율적인 관리도구로서 개인 및 공공분야에서 폭넓게 사용되고 있으며 해양수산 관련분야에서도 활발히 적용되고 있다. 본 연구에서는 진해만을 대상으로 연안 양식장 자료의 3차원 가시화 모듈을 구축하였다.

• 한국환경복원기술학회지
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• 제24권5호
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• pp.35-53
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• 2021

A field survey was carried out targeting 59 pine wilt disease control areas distributed in Andong, and the ecological characteristics of the areas affected by pine wilt disease were analyzed using vegetation information, ecological information, and land use information. Vegetation characteristics of Pine wilt disease affected forest area showed a 3-layer vegetation structure, high percentage of accidental occurrence species (37%) and secondary vegetation species (59.6%), appearing 12 taxa naturalized plants and 3 taxa ecosystem disturbance organisms designated by the Ministry of Environment. Ecological information of Pine wilt affected area showed frequent occurrence of water stress in south and west slopes, low lying grounds in mountains, and in well-drained soils. Also, surrounding the area has been used as roads, tombs, and cultivation where intensive human activities were the cause of disturbance and stress to the pine forest. It was analyzed that the pine forest in Andong city suffered extensive damage due to the onset of pine wilt disease while the pine trees were weakened due to continuous human activities. Conclusively, the spread and onset of pine wilt disease are worsened by artificial factors than natural environmental conditions.

• 인터넷정보학회논문지
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• 제6권1호
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• pp.65-72
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• 2005

플래시 메모리는 이동형 컴퓨팅 환경에서 휴대용 정보기기를 지원하는 우수한 미디어이다. 플래시 메모리는 비휘발성, 낮은 전력소모, 빠른 데이터 접근 속도 등의 특징으로 휴대용 정보기기용 데이터베이스의 핵심 저장 모듈이 되었다. 하지만, 일반 RAM 메모리에 비하여 상대적으로 느린 연산 특성을 고려하여 기존의 트랜잭션 처리 기법을 개선할 필요가 있다. 이를 위하여, 본 논문은 플래시인지 트랜잭션 관리(Flash-Aware Transaction Management: FATM) 기법을 제안한다. FATM은 SRAM과 W-cache를 활용하여 트랜잭션 처리 성능을 높인다. 또한, 성능 검증을 위하여 시뮬레이션 모델을 제안하였으며, 실험 결과 분석을 통하여 FATM이 기존의 트랜잭션 처리 기법보다 우수함을 확인하였다.

• Asian Journal of Business Environment
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• 제10권1호
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• pp.45-50
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• 2020

Purpose: This paper examines the theoretical grounds for the disclosure of the Korea Fair Trade Commission. Three central measures of the disclosure are scrutinized: The interconnected status of affiliate companies, the important matters of private affiliates, and the large internal transactions. Contemplating on three measures, respectively, we review the rationale and derive policy implications. Research design, data, and methodology: Collecting the data of violation rates and remedial measures, we analyze the intensity of the disclosure enforcement. These statistics are critically reviewed by the economic literature of mandatory disclosure. Results: Statistics evince that the Korea Fair Trade Commission has enforced the regulatory disclosure quite successfully. Violation rates of the disclosure has declined from the outset. It demonstrates that the Korea Fair Trade Commission has enforced those measures satisfactorily for about a decade. But we cannot ascertain empirically whether the regulatory disclosures are socially and economically beneficial. To evaluate the effect of the regulatory disclosures precisely, we need a further empirical investigation. Conclusions: Despite the lack of policy evaluation, this study suggests complementary measures for current disclosures. First, disclosure of executive compensation in privately held subsidiaries must be introduced. Second, the controlling shareholder/manager should be responsible for information disclosure on foreign subsidiaries.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.360-363
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• 2006

The red tide related with Cochlodinium Polykrikoides bloom has been frequently occurred around the South Sea of Korea and caused the economic loss in the coastal breeding grounds. The outbreak scale was usually change by physical, biological and environmental condition at each years. Relatively large-scale red tide occurred in 1995, 1997, 1999, 2001, 2002 and 2003 through spatial scale, duration and maximum density. Compared the scale of red tide with physical condition around the South Sea, the lower coastal temperature on August around the South Sea corresponded with the large scale red tide. By serial oceanographic investigations on August in the South Sea and estimated wide area temperature information by satellite, SSTA around the South Sea and wide area was negative when the outbreak of red tide was large scale. From the results of temperature difference between surface and 30m layers, the occurrence of enormous red tide has a tendency when the temperature gradient around the seasonal thermocline was weakened. Larger Kuroshio volume transport in the upstream was also corresponded with the large scale red tide.