• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.22 no.1
• /
• pp.81-91
• /
• 2012

Presently in 2011, there are countless attacking tools oriented to invading security on the internet. And most of the tools are possible to conduct the actual invasion. Also, as the program sources attacking the weaknesses of PS3 were released in 2010 and also various sources for attacking agents and attacking tools such as Stuxnet Source Code were released in 2011, the part for defense has the greatest burden; however, it can be also a chance for the defensive part to suggest and develop methods to defense identical or similar patterned attacking by analyzing attacking sources. As a way to cope with such attacking, this study divides the network areas targeted for attack based on load balancing by the approach gateways and communication lines according to the defensive policies by attacking types and also suggests methods to multiply communication lines. The result of this paper will be provided as practical data to realize defensive policies based on high hardware performances through enhancing the price competitiveness of hardware infrastructure with 2010 as a start.

• Journal of Intelligence and Information Systems
• /
• v.28 no.4
• /
• pp.211-227
• /
• 2022

Illegal gambling through online gambling sites has become a significant social problem. The development of Internet technology and the spread of smartphones have led to the proliferation of illegal gambling sites, so now illegal online gambling has become accessible to anyone. In order to mitigate its negative effect, the Korean government is trying to detect illegal gambling sites by using self-monitoring agents or reporting systems such as 'Nuricops.' However, it is difficult to detect all illegal sites due to limitations such as a lack of staffing. Accordingly, several scholars have proposed intelligent illegal gambling site detection techniques. Xu et al. (2019) found that fake or illegal websites generally have unique features in the HTML tag structure. It implies that the HTML tag structure can be important for detecting illegal sites. However, prior studies to improve the model's performance by utilizing the HTML tag structure in the illegal site detection model are rare. Against this background, our study aimed to improve the model's performance by utilizing the HTML tag structure and proposes Tag2Vec, a modified version of Doc2Vec, as a methodology to vectorize the HTML tag structure properly. To validate the proposed model, we perform the empirical analysis using a data set consisting of the list of harmful sites from 'The Cheat' and normal sites through Google search. As a result, it was confirmed that the Tag2Vec-based detection model proposed in this study showed better classification accuracy, recall, and F1_Score than the URL-based detection model-a comparative model. The proposed model of this study is expected to be effectively utilized to improve the health of our society through intelligent technology.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
• /
• v.15 no.3
• /
• pp.33-46
• /
• 2020

This study analyzes the entrepreneurship education phenomena for agri-food entrepreneurs whose main business is the production of agricultural products and the sale of processed products, using the qualitative study Strauss & Corbin(1998)'s evidence theory approach. From the entrepreneur's point of view, I would like to summarize the phenomena that appear in education, and to prepare a theoretical basis for explaining the phenomena. The importance of entrepreneurship education is emphasized to cultivate the ability to develop and provide products tailored to customers. The necessity of education leads to an increase in demand according to the situational awareness of the founders, and the quantitative increase in entrepreneurship education in the agri-food sector is a clear trend. Inevitably, the need for various discussions on systematic and effective entrepreneurship education is raised. For the study, an interview was conducted with preliminary or entrepreneur who have experienced entrepreneurship education in the agri-food sector. As a research method, I use Strauss & Corbin(1998)'s approach and analyze qualitative data using QSR's NVIVO 12 program. Through this study, it was found that contextual and systematic entrepreneurship education in the agri-food sector has the effect of strengthening competitiveness and strengthening sales. There is a need for follow-up management of trainees. Strengthening the competitiveness of start-ups is based on training professional manpower through education and linking regions with cities. Strengthening sales is based on product planning and market development. This study explores entrepreneurship education in the agri-food sector, which has not been actively conducted in the past. Exploratory analysis on the experiences of the founders of agri-food sector as education demanders has an important meaning for understanding the phenomenon of start-up education.

• Korean Journal of Social Welfare Studies
• /
• v.41 no.1
• /
• pp.5-37
• /
• 2010

The purpose of this study is to see the motive, processes and strategies of change in poor single mother self-help group and analyze meaning in the self help group, agencies and themselves by change. As to this discussion, We seek to grope practical ways for self-help group. By using Participatory Action Research, We intended to an alternative plan in collaborating between practitioners and all concerned. Following four-step-process in this methodology, we explored processes of changing and considered social work practical meaning. On results, first, The motive have come from critical minds that motivate them to choose their way subjectively. We concluded that they have a necessity of change as a groping activity within their capability. Second, On process trying to be changed, They have made initiative decisions about how extensive and deep their changes should be, by discussion being themselves. So they have agreed to aim at purposeful activities beyond just emotional support. Third, they suggested and planned meaningful action as a specific strategy for changing and all these were done by local community volunteering and lecturing for supporting single mother. In conclusion, The 'Change' single mother group activity aim at is, based on subjective decision, to change a practice of a social worker into a practice of participant, and to develop social empowerment more improved to control social condition, which is forming their life, by their own choice. Furthermore, It needs to be considered approach to Community for overcome limits of self help group activities. Based on these consequences, We presented social work practical meaning.

• The Journal of the Korea Contents Association
• /
• v.13 no.7
• /
• pp.497-510
• /
• 2013

The researcher's objective is to analyze a case study from the teaching profession course entitled "Instructional Methods and Educational Technology: IMET," in which the instructional method 'Music Technology-Based Learning: MTBL' has been implemented. In addition to the analysis and the completion of the associated 16-week coursework, the researcher conducted an open-ended survey, and conducted and analyzed in-depth interviews, with participants in the case study. Using MTBL in IMET has elicited mostly favorable responses from participants such as "interesting" and "fun." They also mentioned "active learning participation." There were also negative responses to MTBL, citing "the lack of interconnection between MTBL and other teaching profession courses," "the difficulty of hybrid and convergence classes," and "the need for additional time and attention in an individual study." The analysis of this case study indicates that the use of MTBL in teaching profession courses somewhat enhances the understanding of the general concept of integrating technology into education, although some difficulties remain. The analysis of more case studies is required in order to establish more effective training courses, in which learning is not limited to the theoretical aspects of education. Using MTBL as an integrated part of the educational method would help to foster more creative and professional teachers.

• Journal of Korean Society of Forest Science
• /
• v.111 no.3
• /
• pp.435-449
• /
• 2022

Forest canopy height is an indispensable vertical structure parameter that can be used for understanding forest biomass and carbon storage as well as for managing a sustainable forest ecosystem. Plot-based field surveys, such as the national forest inventory, have been conducted to provide estimates of the forest canopy height. However, the comprehensive nationwide field monitoring of forest canopy height has been limited by its cost, lack of spatial coverage, and the inaccessibility of some forested areas. These issues can be addressed by remote sensing technology, which has gained popularity as a means to obtain detailed 2- and 3-dimensional measurements of the structure of the canopy at multiple scales. Here, we reviewed both international and domestic studies that have used remote sensing technology approaches to estimate the forest canopy height. We categorized and examined previous approaches as: 1) LiDAR approach, 2) Stereo or SAR image-based point clouds approach, and 3) combination approach of remote sensing data. We also reviewed upscaling approaches of utilizing remote sensing data to generate a continuous map of canopy height across large areas. Finally, we provided suggestions for further advancement of the Korean forest canopy height estimation system through the use of various remote sensing technologies.

• Archives of design research
• /
• v.16 no.3
• /
• pp.371-380
• /
• 2003

Modern consumers expect the goods which is sewed more sensitive and emotional satisfaction. It is necessary to apply the knowledge of sensibility analysis to the design of car. The design of wheel for car is regarded as important because consumers want to have unique cars and spend on decorating their cars. This study is to understand the image of consumer's idea about the design of wheel for far through the sensibility analysis that is understood from a part of new design way. According to consumers'needs and emotion, the images of 'harmonious', 'fresh' and 'strong' are representative for the design of wheel for car. The wheel of spoke type stands for the image of 'harmonious', the wheel of mesh type for the image of 'fresh' and the wheel of dish type for the image of 'strong'. Therefore, the emotional image that consumers have of the product is extracted by the sensibility Analysis. In turn, the suggestion of a design direction that satisfies the consumers is possible.

• Korean Journal of Social Welfare Studies
• /
• v.47 no.1
• /
• pp.233-259
• /
• 2016

The purpose of this study is to investigate the problems brought about by applying the case management of prostitution in practice, considering its special characteristics. The study is based on the actual experience and understanding of the hands-on workers toward its case management, who are working at the organization for preventing prostitution. To do this, data collected for the research is analyzed by an inductive approache. Participants are selected in the Counseling Centers for Prostitution, General Supporting Facilities, Supporting Centers for Self-help, and Youth Facilities. Three organizations in each type of the centers or facilities are respectively chosen. Twelve participants are composed of six hands-on workers in charge of the case management and six managers supervising it(called the director of the Center in some Centers). According to the analysis, the main issues of their case management experiences are divided into 5 topics and then sub-divided into 12 ones in 3 areas. Each theme of the topics is 'Steady & ordinary, not special tasks', 'Co-existence of a burden & thrilling', 'Sad, but pretending to be serene', 'Know-hows through practical experiences', 'Nevertheless, fill my future with hopes'. On the basis of the result, some policies and instructions necessary to actively revitalize the case management are suggested: expanding professional training centers based on the field, preparing government level customized-services in medical treatments and laws, creating jobs & intensifying job training, setting up various cooperative systems with local organizations via active networking, establishing super-vision systems, and so on.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2021.11a
• /
• pp.391-392
• /
• 2021

해마다 실내 냉방기 냉매누설 문제가 고질적으로 반복되며 소비자들의 피해도 커져가고 있다. 특히 제조사와 설치 업체가 다른 경우 냉매 누수의 원인이 제품인지, 설치하자인지 책임소재를 두고 갈등을 빚는 경우가 빈번하다. 이에 더 이상 소비자들의 피해를 막기 위해 냉매누설 검출 방안 마련이 필요해 보인다. 본 연구에서는 실내 냉방기 설치 후 냉매누설 검출을 위한 별도의 하드웨어 장치 추가 없이 냉방기의 운영을 위해 설치된 센서들의 값을 이용하여 냉매누설의 유무를 판단할 수 있는 방안을 제안하는 것을 목적으로 한다. 데이터 분석을 위하여 제조사의 제품 출하 전 현장 테스트 단계에서 측정한 온도값, 전류값, 습도값을 취합하여 데이터 셋을 구축하였다. 이때 자동화된 머신러닝(AutoML)을 이용하여 데이터의 80%를 훈련 데이터로 20%를 테스트 데이터로 사용하여 냉매량 80%는 1, 그 이하는 0으로 훈련시켰다. 구축한 데이터 셋을 이용하여 훈련시킨 결과 99% 정확도로 냉매누설 검출을 분별할 수 있었다. 또한 냉매누설과 관련성이 높은 중요 특징 4개를 추출할 수 있었다. 본 연구를 통하여 별도의 하드웨어 장치 추가 없이 소프트웨어적인 접근 방법으로 문제를 해결할 수 있는 feasibility를 확인할 수 있었다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
• /
• 2004.03a
• /
• pp.599-605
• /
• 2004

기존의 구축된 GIS 컴포넌트 혹은 개발 중이거나 향후개발을 목표로 설계단계에 있는 컴포넌트들의 최종 목표는 재사용성과 상호운용성의 가능성 여부이다. 하지만 컴포넌트 개발에 있어 시스템 개발환경의 다양성으로 인하여 그 재활용성은 생각만큼 쉬운 작업이 아니며, 특히 공간정보를 다루고 있는 GIS(Geographic Information System)분야에서의 GIS 컴포넌트 재활용은 전 세계의 산재한 각 데이터형의 포맷, 개발 환경, 운영환경을 고려하여 볼 때 시급한 일임에도 불구하고 그에 대한 노력이 상당히 미진한 실 정 이 다. 본 논문에서는 GIS 애플리케이션을 보다 효율적이고 유용하게 개발하기 위하여 GIS 컴포넌트의 개발과 관리에 이르는 전 과정을 관리 감독할 수 있는 COGIS(Component Oriented Geographic Information System)을 제안하고, COGIS 프로세스의 가이드라인이며 GIS 컴포넌트의 기능적인 면을 정의하기 위한 GCA(GIS based Component Architecture) 아키텍처를 제안하였다. 아울러 GIS 컴포넌트의 메타데이터를 분류 및 정의하여 GIS 컴포넌트의 비 기능적면을 제시하고 이를 이용하여 웹 기반 GIS 컴포넌트 등록/검색 에이전트 시스템을 개발하였으며 기존 GIS 컴포넌트 재사용 및 확장, 신규 컴포넌트의 등록, 검색이 가능하도록 한다. 사례연구로 웹 상에서 산불 발생 위험지수 표출을 위한 GIS 공간 분포도 작성이 쉽게 이루어지도록 2FDRV.avx와 2FDRC.exe 컴포넌트를 개발하였으며, COGIS 프로세스의 컴포넌트 관리방법을 통하여 여러 관련 컴포넌트를 조합함으로써 웹 기반 산불위험지수예보시스템을 구축하였다.입력 근거의 확보’, ‘갱신주체별 역할의 정의 및 유지관리 기준의 설정’, ‘분야별업무 특성을 고려한 관련 기준의 마련 및 타 시스템과 연계되는 항목을 고려한 절차 정의’ 등에 대한 다양한 접근을 시도하였다. 본 연구에서 제시하는 유지관리 모델을 기반으로 각 지자체별로 적절한 컨설팅이 진행되고 이에 따라 담당자의 실천이 이루어진다면 지자체 GIS의 투자대비 효과에 대한 기대는 이상이 아닌 현실로 다가오게 될 것이다.가오게 될 것이다. 동일하게 25%의 소유권을 가지고 있다. ？스굴 시추사업은 2008년까지 수행될 계획이며, 시추작업은 2005년까지 완료될 계획이다. 연구 진행과 관련하여, 공동연구의 명분을 높이고 분석의 효율성을 높이기 위해서 시료채취 및 기초자료 획득은 4개국의 연구원이 모여 공동으로 수행한 후의 결과물을 서로 공유하고, 자세한 전문분야 연구는 각 국의 대표기관이 독립적으로 수행하는 방식을 택하였다 ？스굴에 대한 제1차 시추작업은 2004년 3월 말에 실시하였다. 시추작업 결과, 약 80m의 시추 코아가 성공적으로 회수되어 현재 러시아 이르쿠츠크 지구화학연구소에 보관중이다. 이 시추코아는 2004년 8월 중순경에 4개국 연구팀원들에 의해 공동으로 기재된 후에 분할될 계획이다. 분할된 시료는 국내로 운반되어 다양한 전문분야별 연구에 이용될 것이다. 한편, 제2차 시추작업은 2004년 12월에서 2005년 2월 사이에 실시될 계획이다. 수백만년에 이르는 장기간에 걸쳐 지구환경변화 기록이 보존되어 있는 ？스굴호에 대한 시추사업은 후기 신생대 동안 유라시아 대륙 중부에서 일어난 지구환경 및 기후변화를 이해함과 동시에 이러한 변화가 육상생태계 및 지표지질환경에 미친 영향을 이해하는데 크게 기여할 것이다.