• Proceedings of the Korea Information Processing Society Conference
• /
• 2020.11a
• /
• pp.964-966
• /
• 2020

전염성이 매우 강한 돼지 호흡기 질병을 빠른 시간 내에 정확하게 탐지하지 못한다면 해당 돈사는 물론 타지역으로 전파되어 심각한 경제적 손실이 발생한다. 본 논문은 이와 같은 돼지 호흡기 질병을 저가격의 임베디드 보드에서도 탐지가 가능한 시스템을 제안한다. 해당 시스템은 돈사에 설치한 소리센서로부터 돼지의 이상 소리를 자동으로 탐지한 후, 탐지한 소리 시그널을 스펙트로그램으로 변환한다. 마지막으로, 스펙트로그램은 딥러닝 알고리즘에 적용되어 돼지 호흡기 질병을 탐지 및 식별한다. 이 때, 일반 컴퓨터 환경에 비해 비용 부담이 적은 임베디드 환경에서 실행되기 위하여 경량 딥러닝 모델인 MnasNet 을 사용하였으며, 임베디드 보드인 NVIDIA TX-2 에서 해당 시스템의 호흡기 질병 식별 성능을 확인한 결과 높은 탐지 성능과 실시간 탐지가 가능함을 확인하였다.

• Convergence Security Journal
• /
• v.3 no.1
• /
• pp.7-22
• /
• 2003

The legal dispute of electronic commerce and computer crimes are increasing because the electronic services like e-government and e-commerce are now widely used. Computer Forensics becomes the method for recovery, preservation, analysis and report regarding digital evidence essential to resolve the legal dispute and computer crime. In this paper, the developmental process of Computer Forensics is discussed. It is intended to elicit constructive discussion regarding the domestic Computer Forensics. And this discussion will be of help to establish the secure e-business and e-government services in the field of the research, legal system and technical skill of domestic Computer Forensics.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.16 no.11
• /
• pp.1194-1200
• /
• 1991

The FEM is a computer-aided mathematical technique for obtaining approximate solution to the differential equations. The pointwise convergence defines the relationship between the mesh size and the tolerance. This will play an important role in improving quality of finite element approximate solution. In the paper. We evaluate the convergence on a certain unknown point with a 1-irregular mesh refinement and spectral order enrichment. This means that the degree of freedom is minimized within a tolerance.

• Honam Mathematical Journal
• /
• v.29 no.3
• /
• pp.367-375
• /
• 2007

For bounded negatively associated random variables we derive almost sure convergence and specify the associated rate of convergence by establishing exponential inequality.

• Honam Mathematical Journal
• /
• v.33 no.3
• /
• pp.393-405
• /
• 2011

In this paper we obtain the complete moment convergence for an array of rowwise extended negative orthant dependent random variables. By using the result we can prove the complete moment convergence for some positively orthant dependent sequence satisfying the extended negative orthant dependence.

• Journal of the Korea Society of Computer and Information
• /
• v.26 no.8
• /
• pp.13-21
• /
• 2021

In this paper, we developed an artificial intelligence literacy education program to strengthen the AI convergence education capacity and cultivate literacy of in-service elementary and secondary teachers, and verify the effect on the degree of interest in artificial intelligence convergence education by applying it. As a test tool, the level of interest questionnaire scale developed by George, Hall & Stiegelbauer(2006) was used based on the center of interest acceptance model of Hall et al.(1979). As a result of analyzing the degree of interest in artificial intelligence convergence education before and after the application of the artificial intelligence literacy education program, the types of non-users were found both before and after the application of the program, but the overall degree of interest increased compared to before application. As a result of analyzing the satisfaction result of the artificial intelligence literacy education program, a response that was satisfied in most areas was derived, but there was a tendency to be somewhat less satisfied with the case of convergence and application of artificial intelligence and industry.

• ETRI Journal
• /
• v.31 no.4
• /
• pp.357-364
• /
• 2009

In this paper, we propose a novel equalization on-channel repeater (OCR) with a feedback interference canceller (FIC) to relay terrestrial digital multimedia broadcasting signals in single frequency networks. The proposed OCR not only has high output power by cancelling the feedback signals caused by insufficient antenna isolation through the FIC, but also shows better output signal quality than the conventional OCR by removing multipath signals existing between the main transmitter and the OCR through an equalizer. In addition, computer simulations and laboratory test results demonstrate that the proposed OCR successfully cancels feedback signals and compensates channel distortions and provides a higher quality transmitting signal with higher output power than conventional OCRs.

• Journal of the Korea Society of Computer and Information
• /
• v.23 no.5
• /
• pp.15-23
• /
• 2018

Recently, convergence engineering is emerged technology to make a whole new conceptual methodology attractively more than we previously developed the distinct technology for engineering college students particularly. Based on convergence methodology, we utilize the open-source electronic prototyping platform named Arduino enabling users to create interactive electronic objects and the automata that is generally referred to a wooden moving, mechanical device or art of work in order to develop the creative convergence education program. We have confidence that our education program can lead the development of automata and information technology simultaneously and can nurture talented students who have creativity and originality in engineering college.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2021.11a
• /
• pp.811-814
• /
• 2021

본 논문에서는 점차 진화되어가는 보이스피싱 수법에 대하여 딥러닝 기반 네트워크인 DNN(Deep Neural Network)를 통한 보이스피싱 여부 판별할 뿐만 아니라, CNN, Bi-LSTM을 활용한 다양한 관점에서의 감성 분석을 통하여 보이스피싱 조직원의 감성 상태를 파악하여 판별된 결과에 신뢰도를 높여주는 모델을 제안하였다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2022.07a
• /
• pp.275-278
• /
• 2022

본 고는 일상생활 속 다양한 정보들을 제공하는 웹 사이트를 데이터베이스와 연계하여 제작하는 프로젝트를 소개한다. 해당 프로젝트는 코로나19 거리두기 완화 조치에 따라 학교에 익숙하지 못한 학생들에게 학교 주변 시설에 대하여 실용적이며 활용성 높은 정보를 제공하기 위한 웹 사이트를 제작한다. 해당 웹 사이트는 웹 사용자의 편의를 위한 콘텐츠 추가, 점진적인 제공 정보 확대가 예정되어 있어 코로나19 일상생활 회복에 도움이 될 것으로 기대된다.