• Title/Summary/Keyword: Knowledge-Based Model

Search Result 2,796, Processing Time 0.029 seconds

Model construction with core questions from a course evaluation survey (핵심 문항들을 활용한 모델링-강의 평가 자료를 활용한 사례연구)

  • Pak, Ro-Jin
    • Journal of the Korean Data and Information Science Society
    • /
    • v.20 no.6
    • /
    • pp.1075-1083
    • /
    • 2009
  • The scientific research method went through construction of hypothesis and collection of data by experiment or observation and abstracting the hypothesis based on the experience which uses the data. The statistical methodology plays an important role in this process. The method which acquires a data becomes an initial process of abstraction and a survey research using structured questionnaires is a basic tool. After the data is acquired, the high-class statistical techniques such as the regression analysis and the linear structural equation model are used to abstract a hypothesis. By the way, from time to time the concepts which have become abstractive do not help us to understand an actual phenomena, rather it is need to extract some knowledge from questions themselves. In this article, we review the well known statistical methods providing the ways of finding core questions which possibly answer a researcher wants to know. We deal with course evaluation data as an example and try to set up the strategy for improving course evaluation.

  • PDF

Teaching Statistics through World Cup Soccer Examples (월드컵 축구 예제를 통한 통계교육)

  • Kim, Hyuk-Joo;Kim, Young-Il
    • The Korean Journal of Applied Statistics
    • /
    • v.23 no.6
    • /
    • pp.1201-1208
    • /
    • 2010
  • In teaching probability and statistics classes, we should increase efforts to develop examples that enhance teaching methodology in delivering more meaningful knowledge to students. Sports is one field that provides a variety of examples and World Cup Soccer events are a treasure house of many interesting problems. Teaching, using examples from this field, is an effective way to enhance the interest of students in probability and statistics because World Cup Soccer is a matter of national interest. In this paper, we have suggested several examples pertaining to counting the number of cases and computing probabilities. These examples are related to many issues such as possible scenarios in the preliminary round, victory points necessary for each participant to advance to the second round, and the issue of grouping teams. Based on a simulation using a statistical model, we have proposed a logical method for computing the probabilities of proceeding to the second round and winning the championship for each participant in the 2010 South Africa World Cup.

A Study on the Methods and Contents of Information Literacy Instruction for Undergraduate Students in Design Discipline (디자인분야 정보문해 교육방법 및 내용에 관한 연구)

  • Kim, Sun-Hi
    • Journal of Korean Library and Information Science Society
    • /
    • v.37 no.1
    • /
    • pp.239-259
    • /
    • 2006
  • The purpose of this study is to analyze the methods and contents of information literacy instruction before the developing of Information Literacy Program Model that can improve information literacy competencies of undergraduate students in design discipline. After the literature review on the comparative analysis of national standards & program for higher education and the NASAD standards & guidelines. This research analyzed the methods and contents of the information literacy instruction by the Delphi Survey. As a result of Delphi Survey, the research found out that design discipline preferred Hands-on design-specific instruction by professional librarian at the request of a department and required design-specific information literacy instruction based on the structure of knowledge and information-seeking practices within the design discipline, and providing design-specific tools, resources to helping students apply in learning and actual situation.

  • PDF

The Present Conditions and Improvement of Entrepreneurship Education Program - Focused on Educational Course In Graduate School of Entrepreneurship - (창업교육프로그램의 현황 및 개선방안 - 창업대학원 교과과정을 중심으로 -)

  • Jung, Jong-Seo;Min, Kyung-Se
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
    • /
    • v.3 no.2
    • /
    • pp.1-29
    • /
    • 2008
  • The objective of this study is to develop new entrepreneurship education program and to enhance the program by applying new program. First, this paper examined domestic studies for preceding research on entrepreneurship education, and did foreign studies as theoretical background based on the examination. And this paper drew new models for entrepreneurship education program by analyzing education program from American and Japanese graduate school of entrepreneurship. The model of entrepreneurship education program was drawn by theoretical range, educational system and practical model, and presented reform measures by applying that on the Graduate School of Entrepreneurship. The range of entrepreneurship education program is defined from the moment when an entrepreneur decided to his entrepreneurship to initial growth stage, and should educate specific knowledge required to the development of companies and measures against potential problems on the way to growth it. An entrepreneurship training program should be organized curriculum by the growth stages of company.

  • PDF

Low-Cost Small Satellite Research and Development as an Education Tool (교육용 도구로서의 저가 소형위성 연구 및 개발)

  • 문병영;장영근;이병훈
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.34 no.10
    • /
    • pp.80-91
    • /
    • 2006
  • A method of multidisciplinary education has been implemented for satellite design, based on HAUSAT-1 and 2 ultra-small satellite development projects, in order to provide practical knowledge and experience to students studying satellite engineering. HAUSAT-1 was the nation's first 1kg-class ultra-small satellite. HAUSAT-2 nano-satellite is currently under a Proto-Flight Model development. These design projects make it possible to achieve the goal of science and technical research, which is representative of a university function, and the goal of molding professionals through providing an integrated function of system design education. An integrated system design, like satellite system, provides all participating students with an opportunity to directly/indirectly experience the entire system development process and encourage growth of multidisciplinary system education that has lately become an important issue.

Development and Application of an Economic Value Assessment Model for Online Information (온라인 정보의 경제적 가치 평가 모델 개발 및 적용)

  • Kim, Hee-Sop;Jung, Young-Mi
    • Journal of the Korean Society for information Management
    • /
    • v.22 no.2 s.56
    • /
    • pp.165-184
    • /
    • 2005
  • Value and importance of online information are increased day by day as the knowledge and information society is emerging. However there is little study on information assessments due to the lack of the valid methodologies and models in this field. In this study we proposed a model of the economic value assessments for online information and utilized it to the contents of ITFIND which is an integrated IT information system supported by the MIC(Ministry of Information and Communication). We measured information value of ITFIND as follows: (1) both 'use value' and 'exchange value,' (2) annual $CS^{UV}\;and\;CS^{EV}$ per person by the category of each information, and (3) annual economic value of $CS^{UV}\;and\;CS^{EV}$ of ITFIND information based on it's users' annual $CS^{UV}\;and\;CS^{EV}$ per person.

Development of Educational Program for Rocket Science for High School Students (로켓 추진 원리를 이용한 고등학생 대상 과학교육프로그램 개발)

  • Moon, Young Joo;Lee, Dong Eun;Lee, Sul Ha;Lee, Eun Joo;Lee, Changjin
    • Journal of the Korean Society for Aeronautical & Space Sciences
    • /
    • v.43 no.4
    • /
    • pp.359-367
    • /
    • 2015
  • This paper aims to design an educational science program based on rocket propulsion for high school students. Curriculum in high school physics and chemistry were evaluated to find out scientific match with basic principles in rocket propulsion. Also model rocketry was implemented as a part of the educational program. Solid propellants were prepared by the combination of sorbitol and candy after a selection process for solid propellant from several high caloric food candidates. Specially, this program was intended to give an opportunity to organize basic knowledge of high school science with model rocketry by measuring combustion temperature, thrust level of developed propellants. A pilot operation of the program was done with four high school students to evaluate the achievement of final goals of the program both in technical and educational aspect.

Vitamin D Receptor BsmI Polymorphism and Colorectal Cancer Risk: an Updated Analysis

  • Yu, Kun;Yang, Jing;Jiang, Yan;Song, Run;Lu, Qing
    • Asian Pacific Journal of Cancer Prevention
    • /
    • v.15 no.12
    • /
    • pp.4801-4807
    • /
    • 2014
  • Background: Previous studies have investigated the association between the vitamin D receptor (VDR) BsmI polymorphism and colorectal cancer (CRC) susceptibility, but the results were conflicting. The aim of this study is to quantitatively summarize the relationship between this polymorphism and CRC risk. Materials and Methods: Two investigators independently searched the Medline, Embase, China National Knowledge Infrastructure (CNKI) and Chinese Biomedicine databases for studies published before November 2013. Summary odds ratios (ORs) and 95% confidence intervals (95%CIs) for VDR BsmI polymorphism and CRC were calculated in a fixed-effects model (the Mantel-Haenszel method) and a random-effects model (the DerSimonian and Laird method) when appropriate. Results: This meta-analysis included 14 case-control studies, which included 10,822 CRC cases and 11,779 controls. Overall, the variant genotype (BB) of the BsmI was associated with a lower CRC risk when compared with the wild-type bb homozygote (OR=0.66, 95%CI: 0.49-0.88). Similarly, a decreased CRC risk was also found in the dominant and recessive models. When stratifying for ethnicity, source of controls, and study sample size, associations were observed among Caucasians, population-based studies and studies with large study sample size (>1000 subjects). Limiting the analysis to the studies within Hardy-Weinberg equilibrium, the results were persistent and robust. No publication bias was found in the present study. Conclusions: This updated meta-analysis suggests that the VDR BsmI polymorphism may be associated with a moderate protective effect against CRC.

Phonetic Question Set Generation Algorithm (음소 질의어 집합 생성 알고리즘)

  • 김성아;육동석;권오일
    • The Journal of the Acoustical Society of Korea
    • /
    • v.23 no.2
    • /
    • pp.173-179
    • /
    • 2004
  • Due to the insufficiency of training data in large vocabulary continuous speech recognition, similar context dependent phones can be clustered by decision trees to share the data. When the decision trees are built and used to predict unseen triphones, a phonetic question set is required. The phonetic question set, which contains categories of the phones with similar co-articulation effects, is usually generated by phonetic or linguistic experts. This knowledge-based approach for generating phonetic question set, however, may reduce the homogeneity of the clusters. Moreover, the experts must adjust the question sets whenever the language or the PLU (phone-like unit) of a recognition system is changed. Therefore, we propose a data-driven method to automatically generate phonetic question set. Since the proposed method generates the phone categories using speech data distribution, it is not dependent on the language or the PLU, and may enhance the homogeneity of the clusters. In large vocabulary speech recognition experiments, the proposed algorithm has been found to reduce the error rate by 14.3%.

Structural Relationship among Professional Service Satisfaction, Commitment and Loyalty (전문서비스의 만족과 몰입, 로열티의 구조적 관계)

  • Chun, Myung-Hwan
    • The Journal of the Korea Contents Association
    • /
    • v.10 no.10
    • /
    • pp.318-325
    • /
    • 2010
  • This study is to examine loyalty building model which reflected differentiated traits of professional service to establish strong loyalty for gaining competitive edge. Professional service is where consumer can not easily predict the result of service as well as other common traits. It also has trait that is difficult to evaluate service satisfaction and quality even after using the service because knowledge imbalance between service provider and user is great. Therefore, in professional service, satisfaction and emotion that consumer perceives in the service use process will play critical role in loyalty formation. As a result, the model of this study divided dimension into responsiveness satisfaction which is satisfaction dimension of professional service use process, interaction satisfaction, technical satisfaction and structurally examined the relationship between emotional commitment and cognitive commitment and the relationship between dimension of commitment and loyalty. The analysis result show that dimension of satisfaction which perceived in professional service use process increases both emotional commitment and cognitive commitment and these commitments effect to loyalty formation.