• 제목/요약/키워드: goal-oriented

검색결과 492건 처리시간 0.025초

A Methodology for Task placement and Scheduling Based on Virtual Machines

  • Chen, Xiaojun;Zhang, Jing;Li, Junhuai
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제5권9호
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    • pp.1544-1572
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    • 2011
  • Task placement and scheduling are traditionally studied in following aspects: resource utilization, application throughput, application execution latency and starvation, and recently, the studies are more on application scalability and application performance. A methodology for task placement and scheduling centered on tasks based on virtual machines is studied in this paper to improve the performances of systems and dynamic adaptability in applications development and deployment oriented parallel computing. For parallel applications with no real-time constraints, we describe a thought of feature model and make a formal description for four layers of task placement and scheduling. To place the tasks to different layers of virtual computing systems, we take the performances of four layers as the goal function in the model of task placement and scheduling. Furthermore, we take the personal preference, the application scalability for a designer in his (her) development and deployment, as the constraint of this model. The workflow of task placement and scheduling based on virtual machines has been discussed. Then, an algorithm TPVM is designed to work out the optimal scheme of the model, and an algorithm TEVM completes the execution of tasks in four layers. The experiments have been performed to validate the effectiveness of time estimated method and the feasibility and rationality of algorithms. It is seen from the experiments that our algorithms are better than other four algorithms in performance. The results show that the methodology presented in this paper has guiding significance to improve the efficiency of virtual computing systems.

대학생의 성격유형별 강점과 약점에 관한 분석 -에니어그램 3·6·9 유형을 중심으로- (The Analysis of the Strength and the Weakness for College Students by Personality -Focusing on Enneagram Type 3·6·9-)

  • 이송이;심태은
    • 한국산학기술학회논문지
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    • 제17권10호
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    • pp.357-366
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    • 2016
  • 본 연구의 목적은 대학생이 인식하는 에니어그램 중심에너지의 중심유형인 3, 6, 9번 유형의 성격적 강점과 약점을 분석하여 자기 자신을 이해하기 위한 의미 있는 자료를 제공하기 위함이다. 본 연구의 목적을 위하여 NodeXL을 활용한 주제별 분석법(Thematic Analysis)을 활용하여 사례분석을 실시하였다. 강점의 경우 3번 유형에서는 목표지향적, 자신감, 6번 유형에서는 책임감, 계획적, 9번 유형에서는 평화주의, 배려의 특성이 가장 많이 나왔다. 약점의 경우 3번 유형에서는 주변 시선의식, 결과중시, 6번 유형에서는 걱정 많은, 우유부단, 9번 유형에서는 게으름, 갈등회피의 특성이 가장 많은 것으로 나타났다. 사례를 분석한 결과 3번 유형은 삶의 목표를 중시하며 다른 사람에게 인정받는 것에 큰 의미를 두는 것으로 보였고, 6유형은 책임감이 강하고 미리 준비하는 특성을 보였으며, 9유형은 관계 속에서 배려하고 갈등을 일으키지 않는 특성을 보였다. 각 특성에 대한 사례분석 결과는 대학생이 삶 속에서 보여주는 실질적인 내용에 근거하여 자신에 대한 이해를 폭을 넓힐 수 있도록 한 것에 그 의의가 있다.

컴포넌트 프레임웍의 실용적 참조 모델 (A Practical Reference Model of Component Frameworks)

  • 허진선;김수동
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제33권6호
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    • pp.525-538
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    • 2006
  • 컴포넌트 기반 소프트웨어 공학(CBSE)은 재사용 가능한 소프트웨어 부품을 이용하여 어플리케이션을 개발하는 새로운 패러다임이다. 그러나 소프트웨어 부품을 조림하는 과정에 부품들 간에 불일치 문제가 발생하여 CBSE를 수행함에 있어 부담이 되고 있다. 따라서, 컴포넌트의 재사용 단위보다는 큰 프레임웍(Framework)이 요구되고 있으며 프레임웍은 관련 있는 컴포넌트와 커넥터들 그리고 도메인에 특화된 아키텍처로 구성된다. 프레임웍은 컴포넌트보다 많은 장점을 가지고 있지만, 프레임웍을 구성하는 핵심 요소들과 내부 구조는 명확히 정의되지 않고 있다. 즉, 현재까지 제시된 대부분의 프레임웍 모델들은 실용적이지 못한 개념적인 수준에 머물러 있다. 본 논문에서는 실용적인 수준의 프레임웍 참조 모델을 제안하고 프레임웍의 핵심 요소들을 정의한다. 프레임웍의 구체적인 구성요소들, 컴포넌트와 프레임웍의 상호 관련성, 커넥터의 확장된 개념들, 그리고 프레임웍 내에서의 특화된 아키텍처의 의미에 대해서 명확히 식별한다. 본 논문에서 제안된 프레임웍은 Java, J2EE, CORBA Component Model (CCM) 그리고 NET과 같은 객체지향 기반 미들웨어에서 실용적으로 구현될 수 있을 것이다.

선택과목 '의료와 여성(Women in Medicine)'에 대한 학생반응 분석 (An analysis on the students' responses of the elective course, "Women in Medicine")

  • 전우택;김미란;류숙희
    • 의학교육논단
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    • 제9권2호
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    • pp.21-27
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    • 2007
  • Even though 35% of Korean medical students are female, medical schools and hospitals maintain a strongly male-dominated culture which discourages female students from active career development. In 2006, Yonsei Medical school instigated an elective course entitled "Women in Medicine" to encourage and stimulate 51 female students who enrolled the course. Researchers conducted participant observations at all 6 lectures, as well as 2 surveys and 4 student fucus group discussions comprising a total of 18 students. The total satis faction r ate of the course was high at 4.6 points out of a 5-point score Nevertheless, the study results confirmed three conflict points between lectures and students. Firstly, the lecturers emphasized the excellence and carrier-goal oriented life style, whereas most students are more interested in an ordinary women doctor's life. Secondly, the lecturers emphasized the importance of husband and family's support for success in their career but most female students have little confidence in their ability to achieve a balance between work and family. Thirdly, the lecturers emphasized the women doctor who is able to lead a team effectively, but women students have few opportunities to play a leadership role in their school life. These study findings imply that there is a generation gap in the concept of "successful women doctor's life" between lecturers and students. and that interactive dialogue between lecturer and students is more important than lecture style presentations from extremely successful female doctors. In addition to such lectures, a leadership program based on active student participation should be developed.

북미 의학교육 사례가 한의학 교육에 주는 시사점 (The Implications of the Case of Medical Education in North America on Korean Medicine Education)

  • 홍지성;강연석
    • 한국의사학회지
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    • 제31권2호
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    • pp.91-101
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    • 2018
  • Over the past 100 years, since the establishment of the modern medical education system in the early 1900s, the results of extensive field research and practice in North American medical schools and professional education have led the flow of medical education around the world. In this study, the direction of medical education in North America over the past 100 years were examined through major literature review, leading to implications and suggestions for Korean medicine education. The "Medical Education in the United States and Canada" published by the Carnegie Educational Foundation in 1910, which is considered to have laid the foundation for modern health care education, was reviewed. Next, "Educating physician: A Call for Reform of Medical School and Residency", published in 2010, which is known to have proposed a future-oriented goal for the training of medical professionals has been analyzed. The results of this study are as follows: 1) Acquisition and utilization of biomedical knowledge which is the basis of clinical competence, is a basic competency that should be provided to future medical professionals. 2) Beyond education to cultivate clinical competence of individuals directly affecting the medical treatment, various professionalism education programs that capture the specificity of Korean Medicine doctors should be established and strengthened.

선박 신수요 예측을 위한 빅데이터 기반 인공지능 알고리즘을 활용한 플랫폼 개발 (Development of a Platform Using Big Data-Based Artificial Intelligence to Predict New Demand of Shipbuilding)

  • 이상원;정인환
    • 한국인터넷방송통신학회논문지
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    • 제19권1호
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    • pp.171-178
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    • 2019
  • 한국의 조선 산업은 대내외 환경 변화로 인해 심각한 위기 상황에 처해 있다. 이 위기를 극복하기 위해서, 선박 신수요 예측을 통한 제품 및 기술의 선제적 개발이 필요하다. 본 연구의 목표는 선박 신수요 예측을 위해 선박 빅데이터에 기반한 인공지능 알고리즘의 개발이다. 본 연구에서는 선박 수요 예측에 특화된 빅데이터 분석 플랫폼을 개발하고 데이터 분석을 통한 선박 신수요 예측 결과를 신제품 기획/개발에 활용하고자 한다. 이를 통해 장비 및 기자재 제조업체를 위한 지속 가능한 신사업 모델 개발로 조선소 및 선박 기자재 업체에 대한 신성장동력을 창출할 수 있을 것이다. 또한 조선 업체들은 측정 가능한 성과를 기반으로 비즈니스 사례를 창출하고 시장 지향적 인 제품과 서비스를 계획하며 높은 시장 파괴력을 가진 혁신을 지속적으로 달성 할 수 있을 것으로 기대된다.

초등 저학년 돌봄 교실 건강식생활 교육프로그램의 목표 및 내용체계 개발 연구 (A Study on the Development of the Goals and Contents System of Healthy Dietary Education Program for After-School Care in Lower Grade in Elementary School)

  • 김정현;이명희;박옥진;최경숙
    • 대한지역사회영양학회지
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    • 제24권1호
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    • pp.24-37
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    • 2019
  • Objectives: The study purpose is to develop a content system for a healthy dietary education program for after-school care in lower grade in elementary school. Methods: The contents of healthy dietary education in the 2015 revised curriculum and textbooks and the major education programs related to dietary life that are currently used in elementary school education were analyzed. Focus group interviews were held with field experts related to lower grade in elementary care class. Accordingly, the structuring of the education area and the detailed education contents were systematized. Results: From the analysis results, the contents of curriculum, textbook, and administrative department were classified as hygiene safety, health, and culture. The goal of the educational content system was divided into three areas: nutritional dietary life, food hygiene and health, and food culture. The subjects consisted of dietary balance, healthy body weight, digestion and absorption, food hygiene, Korean agricultural products, traditional food, and table manners. The curriculum was composed of 12 content elements. Conclusions: In order to ensure that after-school care students can grow into healthy, growth-oriented and creative talents, the role of the caring guide is important, and associated guidelines are needed in the future.

정찰 드론의 탐색 경로에 대한 시뮬레이션 연구 (Simulation Study on Search Strategies for the Reconnaissance Drone)

  • 최민우;조남석
    • 한국시뮬레이션학회논문지
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    • 제28권1호
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    • pp.23-39
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    • 2019
  • 군 병력 감축, 인명중시 사상의 확산 그리고 4차 산업혁명을 통한 혁신 기술의 국방에서의 활용과 같은 시대적 요구 속에 드론-봇의 적극적인 활용이 요구되고 있다. 특히, 드론을 활용한 감시 및 정찰은 미래 전장에서 큰 역할을 할 것으로 예상된다. 하지만 정찰용 드론의 운용 개념, 특히 적을 찾기 위한 드론의 탐색 경로에 대한 연구는 많이 이루어지지 않았다. 본 연구에서는 정찰 목적용 드론의 효과적인 운용을 위한 탐색 방법을 시뮬레이션 분석을 통해 제안한다. 시뮬레이션에서 드론과 적은 연속공간에서 선형(First-Order)으로 움직이며, 적은 불확실성을 반영하여 랜덤워크 기법을 적용하였다. 연구는 먼저 기존에 군에서 주요하게 활용하던 탐색 방법(Parallel, Spiral)이 실제로 목표를 탐지하는 확률을 제시하며, 이어서 탐지자의 탐색반경과 속도가 탐지 확률에 미치는 영향을 분석한다. 마지막으로, 적이 랜덤하게 이동하지 않고 특정한 목표를 가지고 이동할 때 적용할 수 있는 새로운 탐지방법인 PS(Probability Search), PCS((Probability Circle Search), HS(Hamiltonian Search), HCS(Hamiltonian Circle Search) 방법을 소개하고 이에 대한 실험결과를 제시한다. 본 연구에서 제시한 탐색방법은 드론의 정찰 작전 시 활용도가 클 것으로 기대한다.

Building Science, Technology, and Research Capacity in Developing Countries: Evidence from student mobility and international cooperation between Korea and Guatemala

  • Bonilla, Kleinsy;Salles-Filho, Sergio;Bin, Adriana
    • STI Policy Review
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    • 제9권1호
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    • pp.99-132
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    • 2018
  • Developing countries face numerous challenges in the process of building science, technology, and research capacity; in particular, the formation and accumulation of skilled S&T workforce. The lack of organized and sustainable higher education options (Master and Doctoral programs), nonexistent or low-quality academic programs, and the absence of research-oriented study options are some of the strong contributors for talented students to emigrate to developed countries. At the same time, the consolidation of a global knowledge economy, the internationalization of higher education, and the competition to attract foreign talent in industrialized countries present challenges for underdeveloped nations to retain their already scarce skilled human resources. In this context, student mobility has been used as a policy mechanism to cope with S&T workforce shortages in S&T laggard nations. It has also enabled opportunities for international cooperation to play a key role. While significant literature has been devoted to studying the gains of developed nations with the arrival and potential migration of the mobilized students, few scholarly inquiries have addressed the benefits and losses experienced by their countries of origin. More importantly, limited research can be found on policy options and policy implications for developing countries to deal with the dilemmas presented by the brain-drain/brain-circulation debate. The goal of this article is to study empirical evidence of an international cooperation initiative for student mobility between the Republic of Korea and Guatemala (implemented during 2009-2015). The paper analyzes this particular international cooperation experience from the perspective of the different actors involved and attempts to draw policy implications and policy options for developing countries to deal with potential risks and gains derived from international mobility for their S&T capacity building.

Branding and Advertising on Social Networks: Current Trends

  • Trachuk, Tetiana;Vdovichena, Olga;Andriushchenko, Mariia;Semenda, Olha;Pashkevych, Maryna
    • International Journal of Computer Science & Network Security
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    • 제21권4호
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    • pp.178-185
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    • 2021
  • The emergence of social networks has led to the flourishing of a new golden era of branding, which is a challenge for companies due to the need for creative positioning of companies with an emphasis on building trust and loyalty to the brand. Consumers are becoming more demanding and due to a wide range of products in different markets, make demands that are more stringent on companies. The goal of this article was to study the main trends of branding and advertising on social networks to develop a new approach to brand promotion. Methodology. The quantitative and qualitative research design was used to determine the main trends in branding and advertising on social networks. The methodology included the following methods: 1) analysis of the relationship between brand value and brand content strategy, 2) content analysis of the content of companies in social networks on the example of 10 world-famous brands with the highest value. The results allowed forming the criteria of effective content and communication: simplicity of content and simplicity of communication, lack of direct advertising of products, emphasis on global socio-economic problems and social orientation, unobtrusive communication, content creativity, indirect information about the product or work, the history of the company's development through various tools. The main content strategies of brands are defined: storytelling strategy; strategy of informing about the history of the company's development; entertainment and information strategy; strategy of joint interaction with the audience through the involvement of wellknown influencers or users of products. The theoretical and practical value of the results is confirmed by the conceptualization of the main content strategies of world-famous brands, which are pioneers in new ways to build relationships with users through social networks. The research proposes to use a customer-oriented approach to brand promotion. This means studying consumer behavior and predicting possible changes in behavior, which determines the level of interaction with the brand, the content strategy of the brand, and its effectiveness.