• 제목/요약/키워드: web-based activity

검색결과 284건 처리시간 0.025초

답안 마킹 이벤트를 이용한 학습 성취도 분석 시스템 (A Learning Accomplishment Analysis System using Answer Marking Events)

  • 이종희;김정재;신창둔;오해석
    • 정보처리학회논문지A
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    • 제10A권5호
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    • pp.571-578
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    • 2003
  • 웹의 등장은 멀티미디어 기술 및 컴퓨터 통신 기술 개발의 가속화 및 이를 응용한 컨텐츠 개발에 촉진제 역할을 하게 되었다. 또한 웹기반 교육시스템의 연구에서도 전자도서관과 LOD 기술을 접목한 연구들이 활발히 진행되어 왔다. 최근에는 교수-학습 활동에서의 새로운 형태인 웹을 기반으로 한 교육(WBI : Web-Based Instruction)이라는 교수 모형이 제시되기에 이르렀다. 또한, 학습자의 요구에 맞는 코스웨어의 주문이 증가되고 있는 추세이명 그에 따라 웹 기반 교육 시스템에 효율적이고 자동화된 교육 에이전트의 필요성이 인식되고 있다. 본 논문에서는 학습 평가에서 학습자의 답안 마킹 이벤트를 이용한 학습 성취도 분석 시스템을 제안한다. 제안한 시스템은 먼저 학습자의 학습 행위를 지속적으로 모니터링하고 평가하여 개인 학습자의 학습 성취도를 계산하며, 이 성취도를 에이전트의 스케쥴에 적용하여 학습자에서 적합한 코스를 제공하고, 학습자는 이러한 코스에 따라 능력에 맞는 반복된 학습을 통하여 적극적은 완전학습을 수행하게 된다.

20대-30대 남성들의 라이프스타일에 따른 화장품 구매행동 (A Study on the Cosmetics Purchasing Behavior According to the 20-30 Year Old Men's Life Style)

  • 이문영;김용숙
    • 복식
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    • 제56권1호
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    • pp.56-69
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    • 2006
  • The purposes of this study were to identify cosmetics purchasing behavior according the 20-30 year old men's lifestyle. The results were as follows; 1. The factors of men's lifestyle were sense of fashion, participation of social activities, use of web-based information, sense of androgyny, economical efficiency, provision of web-base information, sport activities, and pursuit of change, and they were segmented into a passive stagnant group, a economic web-base information utilizing group, a positive social activity participation group, and a sensitive appearance change pursuit group. 2. Passive stagnant group used less information sources patronized cosmetics specialty store, did not select their cosmetics by themselves, and spent less for their cosmetics. Economic web-base information utilizing group used information sources positively, patronized cosmetics discount store or internet shopping, and spent less for cosmetics. Positive social activity participation group patronized cosmetics specialty store or discount store, but did not select cosmetics by themselves. Sensitive appearance change pursuit group patronized department store or internet shopping for cosmetics, selected cosmetics by themselves, and spent more. 3. Passive stagnant group showed a tendency of older, less educated, and lower incomes, but economic web-base information utilizing group were among the age of 20's, lower educated, and the unmarried with average incomes. Positive social activity participation group showed a tendency of older, highly educated, and the married with jobs, but sensitive appearance change pursuit group were among the age of 20's and university students with more incomes and pocket money.

인터넷을 활용한 대중협업에 의한 디자인 가능성 연구 - 사용자 참여 웹사이트와 문헌 연구 - (Towards to Collective Design Activity through Mass Collaboration: A Review of Relevant Websites and Articles)

  • 김대업;이건표
    • 한국HCI학회논문지
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    • 제6권2호
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    • pp.11-20
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    • 2011
  • 본 논문은 온라인 참여를 통한 문제 해결 기법이 널리 활용되고 있음에 따라, HCI영역의 한 부분인 디자인행위가 온라인 시스템 기반의 대중협업기법(Mass Collaboration)을 통해 이루어질 수 있는지 여부를 탐색한 연구에 관한 논문이다. 문헌 연구와 온라인 웹사이트를 수집 분석한 결과, 디자인 행위의 주요 프로세스에 기반하여 비교하였을 때, 디자인 행위가 온라인 참여행위를 통해 수행이 가능할 것으로 예측되었다. 이러한 참여는 Web 2.0의 발전을 통해 많은 수의 대중들이 의사 개진과 의사 결정을 하는데 유용한 도구를 활용할 수 있게 된 덕분으로 풀이된다. 그러나 단순히 일반 참여자가 대중참여기법을 활용한다고 하더라도 전문 디자이너의 디자인 참여와 동일한 결과를 얻을 수 없을 것이라는 결과도 나타났다. 이는 전문가 영역의 문제 해결이 대중들의 판단과는 다른 경험과 전문성을 갖고 있어야 정확한 결과를 낼 확률이 늘어나는 것으로 해석되었다.

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흰민들레와 서양민들레 추출물의 세포독성 및 항산화 활성 비교 (Cytotoxic and Antioxidant Effects of Taraxacum coreanum Nakai. and T. officinale WEB. Extracts)

  • 이현화;이숙영
    • 한국약용작물학회지
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    • 제16권2호
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    • pp.79-85
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    • 2008
  • Some studies of dandelion have been carried out on bioactivities, however, no comparative analysis on antioxidant and cytotoxic activities in the Korean dandelion (T. coreanum NAKAI.; KD) and dandelion (T. officinale WEB.) have been reported. In this study, the extracts of KD and dandelion analyzed relative phenolic contents and free radical scavenging, antioxidant enzyme and cytotoxic activities. The extract of Korean dandelion leaves (KDL) exhibited a higher phenolics content ($368{\pm}11.5\;mg/l00\;g$) and a strong free radical scavenging activity ($RC_{50}$value;87.89 ug/ml) than other parts and BHT (120.12 ug/ml), synthetic antioxidant. At ascorbate peroxidase (APX) activity, the dandelion root (DR) had a greater (38.8 U/mg protein) antioxidant enzyme compare to the dandelion leaves (12.2 U/mg protein). The catalase (CAT) and superoxide dismutase (SOD) followed higher enzyme activity in Korean dandelion root (KDR) than other parts. In a cytotoxic activity against human cancer cell, the extracts of KDR was found to be active against Calu-6, HCT-116, and SNU-601 cell lines, with $IC_{50}$ values of 522.34, 532.74 and 614.85 ug/ml, respectively. These results suggest that KD and dandelion would be an alternative antioxidant source, based on natural plant resources.

웹 미디어 시스템을 위한 확률 분포 함수와 사용자 프로파일에 기반 한 동적 적응 모델 (Dynamic Adaptive Model based on Probabilistic Distribution Functions and User's Profile for Web Media Systems)

  • 백영태;이세훈
    • 컴퓨터교육학회논문지
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    • 제6권1호
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    • pp.29-39
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    • 2003
  • 이 논문에서는 웹 미디어(웹 기반의 하이퍼미디어) 시스템에서 이산 확률 분포 함수와 사용자 프로파일 기반의 동적 적응 모델을 제안하였다. 이 모델은 응용 영역을 동적 적응 객체의 가중치 방향성 그래프로 표현하며, 사용자 행위를 이산 확률 함수를 동적으로 구축하는 접근 방식을 이용하여 모델링한다. 제안한 확률적 해석은 웹 미디어 구조에서 사용자의 탐색 행위를 추적하여 사용자 행위에 대한 잠재적 속성을 나타내는데 사용될 수 있다. 이러한 접근 방식은 사용자에게 가장 알맞은 프로파일을 동적으로 할당할 수 있다.

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웹 기반 철도 비상 사태에 대비한 비상 대응관리시스템 구축방안 (A Device of a Web Based Emergency Response-Management-System against Railroad Accidents)

  • 진상규;김시곤
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2007년도 춘계학술대회 논문집
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    • pp.559-571
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    • 2007
  • Although the railroad industry has progressed in terms of amount and quality because of the opening of the new express ways in 2004 and the construction and openings of the express railroads of cities, the establishment of safety has been poor so there has been lurking accidents and it resulted in big accidents like a Daegu subway fire. Therefore, this study is to minimize damages of life and property by establishing GIS, a map for emergency and Activity-Action and emergency reaction scenario through a web in case of emergencies mentioned before.

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NAMA: 개인화된 상기 시스템 구축에서의 선응적인 욕구 파악을 위한 상황인지가 가능한 다중 에이전트 웹서비스 접근법 (NAMA: A Context-Aware Multi-Agent Based Web Service Approach to Proactive Need Identification for Personalized Reminder System)

  • 권오병;김민용;최성철;박규로
    • Asia pacific journal of information systems
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    • 제14권3호
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    • pp.121-144
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    • 2004
  • Developing a personalized system on a user's behalf which is working around the Internet-based marketplace is one of the challenging issues in intelligent e-business, especially mobile commenrce. It has been highly recommended that such a mobile personalized system has to perceive the user's needs a priori by tracking user's current context such as location with activity and then to identify the current needs dynamically and proactively. Automatically and unobtrusively getting user's context is an inevitable feature for the development of autonomous mobile commenrce. However, personalization methodologies and their feasible architectures for context-aware mobile commerce have been so far very rare. Hence, this paper aims to propose a context-aware mobile commerce development methodology by applying agent and semantic web technologies for personalized reminder system, which is one of the mobile commerce support system. We revisited associationism to understand a buyer's need identification process and adopt the process as 'purchase based on association' to implement a personalized reminder system. Based on this approach, we have showed how the agent-based semantic web service system can be used to realize need-aware reminder system. NAMA(Need-Aware Multi-Agent), a prototype system, has been implemented to show the feasibility of the methodology and framework under mobile setting proposed in this paper. NAMA embeds bluetooth-based location tracking module and identify what a user is currently looking at through her/his mobile device such as PDA. Based on these capabilities, NAMA considers the context, user profile with preferences, and information about currently available services, to aware user's current needs and then link her/him to a set of services, which are implemented as web services.

웹 기반 간호 교육을 위한 튜터의 운영 전략 개발 및 효과 검증 연구 (A Study of Development and Evaluation of Tutorial Management Strategy for Web-based Nursing Education)

  • 최지은;김분한
    • 성인간호학회지
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    • 제17권4호
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    • pp.635-645
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    • 2005
  • Purpose: This study was attempted and completed in order to settle down and qualitatively improve web-based nursing education by evaluating effect and managing strategy of tutor. Method: The development of tutor's managing strategy was based on "The Self-regulated Learning" and "The supportive Learning", then it was applied to 79 learners in one of the cyber-learning centers. After applying the tutor's managing strategy, self-regulated learning scale, attitude for school, preference for computer and academic achievement were evaluated. The development of tutor's managing strategy for web-based nursing education are consisted of participation promotion, psychological support and motivation, recognition and promotion strategy of learning activity, management strategy of evaluating stage. Result: The levels of learner's self-regulated learning, recognition, behavior, attitude on the school and learning achievement were meaningfully increased in statistics after applying for the managing strategy of tutor. The motivation level and learning participation kept high scores from the beginning with no significant statistical changes. Conclusion: It is required to develop an educational program for cultivating well-educated tutors in order to help the effective learning process of nurses based on understanding characteristics of learners.

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Genome-Based Virus Taxonomy with the ICTV Database Extension

  • Kang, Shinduck;Kim, Young-Chang
    • Genomics & Informatics
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    • 제16권4호
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    • pp.22.1-22.5
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    • 2018
  • In 1966, the International Classification of Viruses (ICNV) was established to standardize the naming of viruses. In 1975, the organization was renamed "International Committee on Taxonomy of Viruses (ICTV)," by which it is still known today. The primary virus classification provided by ICTV in 1971 was for viruses infecting vertebrates, which includes 19 genera, 2 families, and 24 unclassified groups. Presently, the 10th virus taxonomy has been published. However, the early classification of viruses was based on clinical results "in vivo" and "in vitro," as well as on the shape of the Phenotype virus. Due to the development of next-generation sequencing and the accompanying bioinformatics analysis pipelines, a reconstruction of the classification system has been proposed. At a meeting held in Boston, USA between June 9-11, 2016, there was even an in-depth discussion regarding the classification of viruses using metagenomic data. One suggested activity that arose from the meeting was that viral taxonomy should be reconstructed, based on genotype and bioinformatics analysis "in silico." This article describes our efforts to achieve this goal by construction of a web-based system and the extension of an associated database, based on ICTV taxonomy. This virus taxonomy web system was designed specifically to extend the virus taxonomy up to strain and isolation, which was then connected with the NCBI database to facilitate searches for specific viral genes; there are also links to journals provided by the EMBL RESTful API that improves accessibility for academic groups.

학생건강체력평가제(PAPS)를 기반으로 한 비만아동관리 프로토콜 (Obesity management Protocol based physical activity promotion system(PAPS) for obese children)

  • 강선영
    • 융합보안논문지
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    • 제15권5호
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    • pp.47-52
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    • 2015
  • 본 연구에서는 학생건강체력평가제(PAPS)기반 데이터를 활용하여 비만아동을 관리하기 위한 효과적인 프로토콜을 제시하였다. 매년 시행되는 PAPS는 비만평가를 포함하고 있는데, 학교에서는 PAPS에서 얻은 데이터를 통해 급증하고 있는 비만아동의 관리를 위한 노력을 하고 있다. 그러나 현실적으로 학교 교사들의 업무 부담과 제공인력 부족으로 인해 비만아동들의 사후관리에는 효율적이지 못했다. 보다 체계적이고 적극적인 관리를 위해서는 web-PAPS 접속을 통해 학생이나 학부모가 건강종합평가나 비만의 유무를 확인하고 신체활동 처방을 확인할 수 있었던 기존의 방식에 스마트 디바이스 전송방식을 결합하여 정보에의 접근을 용이하게 하는 것이 효율적이다. web-PAPS에서 비만아동의 부모에게 자녀의 체력 및 건강, 비만에 관련한 정보를 자동으로 전송하여, 개인의 상태에 적절하게 처방된 운동과 영양에 대한 처방내용 및 교육내용을 부모와 공유하게 될 때 비만관리에 더욱 효과적일 것이다.