• 한국음향학회지
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• 제39권4호
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• pp.292-302
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• 2020

기계학습 알고리즘은 소나 및 레이더를 포함한 다양한 분야에서 사용되고 있다. 최근 개발된 GAN(Generative Adversarial Networks)의 변형인 Cycle-Consistency Generative Adversarial Network(CycleGAN)은 쌍을 이루지 않은 이미지-이미지 변환에 대해 검증된 네트워크이다. 본 논문에서는 높은 품질로 수중 선박 엔진음을 변환시킬 수 있는 변형된 CycleGAN을 제안한다. 제안된 네트워크는 수중 음향을 기존영역에서 목표영역으로 변환시키는 생성자 모델과 데이터를 참과 거짓으로 구분하는 개선된 식별자 그리고 변환된 수환 일관성(Cycle Consistency) 손실함수로 구성된다. 제안된 CycleGAN의 정량 및 정성분석은 공개적으로 사용 가능한 수중 데이터 ShipsEar을 사용하여 기존 알고리즘들과 Mel-cepstral분포, 구조적 유사 지수, 최소 거리 비교, 평균 의견 점수를 평가 및 비교함으로써 수행되었고, 분석결과는 제안된 네트워크의 유효성을 입증하였다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
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• pp.668-674
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• 2008

인터넷 이용률이 증가함에 따라 다양한 콘텐츠 개발과 보다 질적인 조건을 갖추어야 진정한 인터넷 강국으로 부가가치를 높일 수 있다. 우리가 인터넷을 클릭하여 웹 사이트를 방문한 순간 수많은 정보들이 다양한 테크닉과 색상들로 해당 정보 사이트로 방문을 유도한다. 그 만큼 시각적 표현이 중요시 되고 있으며 웹디자인의 색채계획은 중요한 역할을 차지한다. 색은 웹 사이트의 이미지를 결정하며 감성을 전달하는 중요한 요소이기 때문이다. 본 논문에서 웹 사이트 유형별 사용하고 있는 색들을 추출하여 색채이미지를 비교 분석하였다. 국내 웹사이트를 아이덴티티 유형, 정보/커뮤니티 유형, 오락 유형, 쇼핑 유형, 학습 유형으로 분류하여 비교 분석함으로써 웹 유형별 색채이미지 계획방향을 제시한다.

• 정보학연구
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• 제6권1호
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• pp.21-38
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• 2003

대학의 지식조직이다. 지식경영을 통해 지식자원을 가장 효율적이고 효과적으로 활용할 수 있는 조직임에도 불구하고 이를 적절히 전략화하지 못하고 있는 것이 현실이다. 따라서 학생, 교수, 직원 그리고 대학관계인을 중심으로 한 지식그룹을 지식커뮤니티로 통합하여 지식이전 및 공유 나아가서 지식창출이 활성화될 수 있는 대학환경이 필요하다. 이를 위해 지식사용자의 개인별 정보맞춤서비스와 다양한 자료를 효과적으로 접근하고 관리할 수 있는 지식포털기술을 이용하여 대학의 “지식” 자원을 극대화할 수 있는 시스템을 구축할 필요성이 있다. 이러한 시스템의 구축은 새로운 지식공유 및 유통환경, 지식창출문화 그리고 대학커뮤니티의 활성화에 기여할 수 있으며 대학의 이미지제고와 경쟁우위의 대학발전을 이룩할 수 있을 것이다.

• 한국과학교육학회지
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• 제41권5호
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• pp.359-370
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• 2021

본 연구에서는 과학 교과에 메이커 교육을 융합한 프로그램의 특징을 파악하고 학생들에게 발현되는 메이커 역량을 탐색하고자 한다. 이를 위하여 과학 개념에 기반한 메이커 활동 프로그램을 개발하여 H 대학교 1학년 학생 20명을 대상으로 일반화학실험 강좌에서 적용하였고, 활동 자료를 분석하였다. 과학 개념에 기반한 메이커 활동의 분석 결과는 다음과 같다. 첫째, 학생들은 '아이디어 제시', '아이디어 선정 및 계획', '프로토타이핑'의 과정을 거쳐 활동을 수행하였고, 특히 프로토타이핑은 '부분 프로토타이핑'과 '전체 프로토타이핑' 활동의 단계로 이루어졌음을 확인할 수 있었다. 둘째, 활동의 특징으로서, '메이커 활동 과정에서 코딩을 위한 로직으로 과학 개념의 사용', '과학 개념에 대한 심층 이해', '학습의 주도성 이양을 통한 높은 성취감 및 흥미 유발'이 나타났다. 셋째, 활동 과정에서 협업과 메이킹 수행 역량이 많이 발현되었으나, 인간 중심 역량군은 거의 발현되지 않았다.

• International Journal of Computer Science & Network Security
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• 제21권8호
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• pp.353-359
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• 2021

Information technology and the need for timely and effective communication during the Covid-19 have made most governments adopt technological approaches to provide their services. E-government services have been adopted by most governments especially in developed countries to quickly and effectively share information. This study discusses the reasons why governments in the Gulf region should develop a new model for information technology knowledge management practices. To achieve this, the author identified possible benefits of adopting information technology knowledge management practices and why most governments in the Gulf find it hard to adopt them. Knowledge management allows for learning, transfer as well as sharing of information between government organizations and citizens and with the development of technology, the effectiveness of electronic services can easily be achieved. Also, effective adoption of information technology can improve knowledge management with the help of techniques that enhance capture, storage, retrieval as well as sharing of information. The author used systematic literature review to select 28 journals and articles published post 2019. IEEE, Google Scholar and Science Direct were used to select potential studies from which 722 journals and articles were selected. Through screening and eligibility assessment, 21 articles were retained while the back and forward search had 7 more articles which were also included in the study. Using information gathered from these articles and journals a new conceptual model was developed to help improve information technology knowledge management for governments in the Gulf region to effectively deliver e-services during Covid-19. This model was developed based on the process of KM, Theory of Planned Behavior and Unified Theory of Acceptance and Use of Technology. Based on the developed model. From UTAUT model, performance expectancy, effort expectancy as well as social influence had a great impact.

• International Journal of Internet, Broadcasting and Communication
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• 제13권2호
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• pp.179-186
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• 2021

We have been developed the smart tourism app and the Instagram and YouTube contents to provide personalized tourism information and travel product information to individual tourists. In this paper, we develop a rule-based smart tourism chatbot with the khaiii (Kakao Hangul Analyzer III) morphological analyzer and Neo4J graph database. In the proposed chatbot system, we use a morpheme analyzer, a proper noun dictionary including tourist destination names, and a general noun dictionary including containing frequently used words in tourist information search to understand the intention of the user's question. The tourism knowledge base built using the Neo4J graph database provides adequate answers to tourists' questions. In this paper, the nodes of Neo4J are Area based on tourist destination address, Contents with property of tourist information, and Service including service attribute data frequently used for search. A Neo4J query is created based on the result of analyzing the intention of a tourist's question with the property of nodes and relationships in Neo4J database. An answer to the question is made by searching in the tourism knowledge base. In this paper, we create the tourism knowledge base using more than 1300 Jeju tourism information used in the smart tourism app. We plan to develop a multilingual smart tour chatbot using the named entity recognition (NER), intention classification using conditional random field(CRF), and transfer learning using the pretrained language models.

• 한국기록관리학회지
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• 제19권4호
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• pp.221-230
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• 2019

본고는 표준기록관리시스템과는 차별화하여, 전자결재시스템과 기록관리시스템을 하나의 시스템으로 운영하고, 기록관리 보조도구로 인공지능, 챗봇 등의 지능형서비스를 접목한 한국중부발전의 기록관리시스템 구축을 위한 준비과정을 소개함을 목적으로 한다. 기록관리 전 생애주기를 관리하는 것은 물론이고, 현용기록의 활용성을 높이기 위한 실시간 이관 및 기능분류체계 활용에 대해 심도있게 검토하여 설계하였으며, 폭증하는 전자기록물의 효율적 관리를 위하여 인공지능 등 신기술을 도입하였다. 기록관리행위의 첫 단추이자 가장 중요한 시작인 분류의 정확성을 높이고자, 기계학습을 통한 기록물분류를 추천하여 처리과에서의 무분별한 오분류를 사전에 차단했으며, 업무관련 규정 및 기록의 활용을 위하여 챗봇을 도입하는 등 기록관리 분야에서 신기술을 적극 도입하였다. 또한 시스템 간 이관에 따라 생기는 열람권한 문제를 전자결재시스템 및 기록관리시스템의 열람권한을 모두 확인하여 권한을 부여하는 등 기록물의 적극적 활용을 위해 많은 노력을 하였다.

• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.21-30
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• 2021

Economic transformations have led to an increase in the role of creative assets and their central role in public life. Changes in creative activity have led to a change in the organization of the work of institutes engaged in the training of specialists, in particular teachers of labor education. Methods and approaches to training determine the development of creative industries, being the basis for models of professional training of future teachers of labor training. The purpose of an article was to develop a modern model of professional training of future teachers of labor training based on the concept of creative economy. The methodology is based on the concepts of holistic craft and creative economy. Based on the integration of pedagogical learning models "Craft as design and problem-solving", "Craft as skill and knowledge building", "Craft as product-making" and "Craft as self-expression" developed and experimentally confirmed the conceptual model of professional training of future teachers of labor training. The proposed model forms a practitioner with professional, technical, digital and creative skills who is able to transfer the experience to students. The training course "Creativity and creative thinking" has been developed. The model provided for the development of a course based on the strategy of developing professional creativity, flexibility, improvisation, openness, student activity, joint practice, student-oriented approach. The practical value implies the adaptation of the developed model of professional training of future teachers of labor education during the training of teachers in higher education, which is confirmed in the experiment.

• 복식문화연구
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• 제29권1호
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• pp.134-151
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• 2021

The aim of this research is to develop a clothing and textiles studio course for preservice home economics teachers applying principles of Project-Based Learning (PBL) and maker education to equip future teachers with the ability to nurture creativity among adolescents. The studio course was developed in the following stages: analysis, design, development, implementation, and evaluation. We concluded that the resulting course met the following objectives extracted from the 2015 revised curriculum of home economics subjects: to promote creative and environmentally-friendly fashion design and styling abilities, gain the ability to use makerspace tools, understand flat pattern making and sewing processes, and develop creative thinking, aesthetic sense, and communication skills. Furthermore, the educational effects of PBL and maker education were confirmed through student comments on the course. Students mentioned the practicality of the material in their actual lives along with their enhanced integration of the subject material, self-directedness, aesthetic sense, ability to learn through trial and error, collaboration and communication, and sharing. Based on results from the implementation and evaluation stages, a clothing and textiles studio course should include the following modules: introduction of terms and tools, submission and sharing of clothing reformation and upcycling techniques, introduction to hand sewing, pouch making, heat-transfer printing, 3D printing, mask making, hat making, vest making, and the final team project on fashion styling. It is important for instructors to provide detailed guidelines on selecting personas for styling, looking for available materials, and selecting materials online.

• Archives of Plastic Surgery
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• 제49권5호
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• pp.668-675
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• 2022

Background Educational resources on the internet are extensively used to obtainmedical information. YouTube is the most accessed video platform containing information to enhance the learning experience of medical professionals. This study systematically analyzed the educational value of microsurgery-related videos on this platform. Methods A systematic review was conducted on YouTube from April 18 to May 18, 2020, using the following terms: "microsurgery," "microsurgical," "microsurgical anastomosis," "free flap," and "free tissue transfer." The search was limited to the first 100 videos, and two independent reviewers screened for eligible entries and analyzed their educational value using validated scales, including a modified version of the DISCERN score (M-DISCERN), Journal of the American Medical Association (JAMAS) benchmark criteria, and the Global Quality Score (GQS). Evaluation of video popularity was also assessed with the video power index (VPI). Results Of 356 retrieved videos, 75 (21%) were considered eligible. The educational quality of videos was highly variable, and the mean global scores for the M-DISCERN, JAMAS, and GQS for our sample were consistent with medium to low quality. Conclusions A limited number of videos on YouTube for microsurgical education have high-educational quality. The majority scored low on the utilized criteria. Peer-reviewed resources seem to be a more reliable resource. Although the potential of YouTube should not be disregarded, videos should be carefully appraised before being usedas an educational resource.