• Title/Summary/Keyword: 학습 목표 달성

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Development of Management Performance Index Building BSC System for Hotels (BSC 시스템 구축을 위한 호텔기업의 성과지표 개발)

  • Chung, Tae-Woong
    • The Journal of the Korea Contents Association
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    • v.8 no.9
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    • pp.234-241
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    • 2008
  • The feature of the hotel business as a labor intensive industry and its heavy dependence on man power is relatively bigger than other industries. the important factors influencing the customer`s decision making are tangible facilities and intangible service qualities. however, the changes in economic situation are also seriously influencing them. So hotels are started to find other IT(information technology) systems. BSC which has been recognized as one of barometers to establish management performance is one of them. The purpose of this study was to develop KPI(key performance indicator) by using the BSC(Balanced Scorecard) for evaluating hotel management performance. This thesis presents customer performance, inner process performance, learning and growing performance as non-financial factors and tries to examine the cause and effect in the hotel industry. Hotels have to know nonfinancial performance which has positively relate to financial performance. To introduce BSC system is not to lead increasing income and bettermenting service quality, satisfacting customer needa for hotels, But to lead developing value enhancement to hotel enterprises and present process.

Document Management System using XML/EDI in Education Web (교육망에 XML/EDI를 도입한 문서 관리 시스템)

  • Ko, Min-Jung;Chae, Ki-Joon
    • The Journal of Korean Association of Computer Education
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    • v.3 no.1
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    • pp.151-160
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    • 2000
  • Public and private schools have close relationship with education-related organizations and they have exchanged formal documents to communicate each other. Introducing the XML/EDI used in electronic-commerce to the education web will make a great benefit for decreasing affairs in educational administration. In this paper, we implement a document management system using XML/EDI. This system makes it possible to treat documents which are not supported in current education-information-exchange system and can be added to the current system without any additional modification. We analyze the documents used in the current system and implement new types of tags suitable for education web. In addition, we difine new documents and DTD using only XML without any application software. This will have effects on reducing teacher's administrative work and enable teachers to concentrate on their teaching.

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Pedagogical Implications for Teaching and Learning Normal Distribution Curves with CAS Calculator in High School Mathematics (CAS 계산기를 활용한 고등학교 정규분포곡선의 교수-학습을 위한 시사점 탐구)

  • Cho, Cheong-Soo
    • Communications of Mathematical Education
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    • v.24 no.1
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    • pp.177-193
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    • 2010
  • The purpose of this study is to explore normal distribution in probability distributions of the area of statistics in high school mathematics. To do this these contents such as approximation of normal distribution from binomial distribution, investigation of normal distribution curve and the area under its curve through the method of Monte Carlo, linear transformations of normal distribution curve, and various types of normal distribution curves are explored with CAS calculator. It will not be ablt to be attained for the objectives suggested the area of probability distribution in a paper-and-pencil classroom environment from the perspectives of tools of CAS calculator such as trivialization, experimentation, visualization, and concentration. Thus, this study is to explore various properties of normal distribution curve with CAS calculator and derive from pedagogical implications of teaching and learning normal distribution curve.

The concept presentation method presented in the middle school informatics textbook Impact on learners' understanding (중학교 정보교과 개념 제시 방법이 학습 이해도에 미치는 영향)

  • Park, Jin Yong;Beak, Song Yi;Lee, Eun joo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.4
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    • pp.345-352
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    • 2019
  • The 2015 revised information curriculum emphasizes the ability to solve problems in real life based on the basic concepts, principles and techniques of computer science. How the contents of textbooks are designed is an important issue in terms of achievement of educational goals and whether contents can be easily and clearly communicated. The purpose of this study is to analyze the concept presentation method presented in middle school informatics textbooks by three types of text- centered type, picture-centered type, and case-centered type- to analyze differences in understanding according to individual variables (sex, subject preference). Analysis results found the figure-centered type showed the highest degree of comprehension among students, and the preference of contents design type and the difference of understanding according to sex did not show significant differences. According to the preferred subjects, understanding of the content design types were found to be significantly different according to preferred subjects.

Feedback Flow Control Using Artificial Neural Network for Pressure Drag Reduction on the NACA0015 Airfoil (NACA0015 익형의 압력항력 감소를 위한 인공신경망 기반의 피드백 유동 제어)

  • Baek, Ji-Hye;Park, Soo-Hyung
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.49 no.9
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    • pp.729-738
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    • 2021
  • Feedback flow control using an artificial neural network was numerically investigated for NACA0015 Airfoil to suppress flow separation on an airfoil. In order to achieve goal of flow control which is aimed to reduce the size of separation on the airfoil, Blowing&Suction actuator was implemented near the separation point. In the system modeling step, the proper orthogonal decomposition was applied to the pressure field. Then, some POD modes that are necessary for flow control are extracted to analyze the unsteady characteristics. NARX neural network based on decomposed modes are trained to represent the flow dynamics and finally operated in the feedback control loop. Predicted control signal was numerically applied on CFD simulation so that control effect was analyzed through comparing the characteristic of aerodynamic force and spatial modes depending on the presence of the control. The feedback control showed effectiveness in pressure drag reduction up to 29%. Numerical results confirm that the effect is due to dramatic pressure recovery around the trailing edge of the airfoil.

A collaborative Serious Game for fire disaster evacuation drill in Metaverse (재난 탈출 협동 훈련 기능성 게임의 메타버스 플랫폼 구현)

  • Lee, Sangho;Ha, Gyutae;Kim, Hongseok;Kim, Shiho
    • Journal of Platform Technology
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    • v.9 no.3
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    • pp.70-77
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    • 2021
  • The purpose of Serious games in immersive Metaverse platform to provide users both fun and intriguing learning experiences. We proposes a serious game for self-trainable fire evacuation drill with collaboration among avatars synchronized with multiple trainees and optionally with real-time supervising placed at different remote physical locations. The proposed system architecture is composed of wearable motion sensors and a Head Mounted Display to synchronize each user's intended motions to her/his avatar activities in a cyberspace in Metaverse environment. The proposed system provides immersive as well as inexpensive environments for easy-to-use user interface for cyber experience-based fire evacuation training system. The proposed configuration of the user-avatar interface, the collaborative learning environment, and the evaluation system on the VR serious game are expected to be applied to other serious games. The game was implemented only for the predefined fire scenario for buildings, but the platform can extend its configuration for various disaster situations that may happen to the public.

Design of a 1-D CRNN Model for Prediction of Fine Dust Risk Level (미세먼지 위험 단계 예측을 위한 1-D CRNN 모델 설계)

  • Lee, Ki-Hyeok;Hwang, Woo-Sung;Choi, Myung-Ryul
    • Journal of Digital Convergence
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    • v.19 no.2
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    • pp.215-220
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    • 2021
  • In order to reduce the harmful effects on the human body caused by the recent increase in the generation of fine dust in Korea, there is a need for technology to help predict the level of fine dust and take precautions. In this paper, we propose a 1D Convolutional-Recurrent Neural Network (1-D CRNN) model to predict the level of fine dust in Korea. The proposed model is a structure that combines the CNN and the RNN, and uses domestic and foreign fine dust, wind direction, and wind speed data for data prediction. The proposed model achieved an accuracy of about 76%(Partial up to 84%). The proposed model aims to data prediction model for time series data sets that need to consider various data in the future.

Unsupervised feature selection using orthogonal decomposition and low-rank approximation

  • Lim, Hyunki
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.5
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    • pp.77-84
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    • 2022
  • In this paper, we propose a novel unsupervised feature selection method. Conventional unsupervised feature selection method defines virtual label and uses a regression analysis that projects the given data to this label. However, since virtual labels are generated from data, they can be formed similarly in the space. Thus, in the conventional method, the features can be selected in only restricted space. To solve this problem, in this paper, features are selected using orthogonal projections and low-rank approximations. To solve this problem, in this paper, a virtual label is projected to orthogonal space and the given data set is also projected to this space. Through this process, effective features can be selected. In addition, projection matrix is restricted low-rank to allow more effective features to be selected in low-dimensional space. To achieve these objectives, a cost function is designed and an efficient optimization method is proposed. Experimental results for six data sets demonstrate that the proposed method outperforms existing conventional unsupervised feature selection methods in most cases.

A Metaphor Analysis on the Learning-Centered Class of Pre-Service Secondary Physical Education Teachers (중등 예비체육교사의 배움중심수업에 대한 메타포 분석)

  • Seung-Yong Kim
    • Journal of Industrial Convergence
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    • v.21 no.8
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    • pp.87-96
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    • 2023
  • The purpose of this study was to investigate the meanings that pre-service secondary physical education teachers attach to learning-centered teaching through metaphor analysis and to examine their perceptions of the application of learning-centered teaching in physical education. In order to achieve the purpose of the study, a survey was conducted to express the perception of learning-centered teaching in metaphors. The data analysis was processed through the process of coding, metaphor classification, determining the unit of analysis, and categorisation of the sample according to the metaphor analysis method. As a result, four major categories of educational needs, educational goals and contents, teaching and learning methods and evaluation, teacher education and roles, and eight content types were derived: lessons for self-actualisation, lessons for preparing for future society, lessons that foster creativity, open and diverse lessons, lessons that stimulate curiosity and interest, lessons that are suitable for individual development and characteristics, lessons that are burdensome to implement, and lessons that require teacher creativity and originality. The results of this study provide implications for the necessity and direction of learning-centered class.

A study on Hangul serious mobile game for Infant based on R. Caillois's theory (로제 카이와(R.Caillois)의 놀이 유형에 근거한 유아용 한글 기능성 모바일 게임 연구)

  • Lee, Sooyeon;Kim, Jaewoong
    • Cartoon and Animation Studies
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    • s.35
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    • pp.291-312
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    • 2014
  • This study is based on the theory of R.Caillois about element of play which is motivated to infant for studying Hangul. The ultimate goal of play has to be accompanied by pleasure. And learning means permanent changes from experiences for the individual's. Play and learning, these two elements are united to the genre of serious game since the GBL (game based learning) was lead. Most importantly, in order to achieve their own Hangul learning is the fun. Coupled with fun and learning has an important issue for flow because concentration is low in infants than adults. In this case study is to know about fun factor has been applied effectively to Hangul serious mobile game. 20 Infant Hangul mobile serious games of Google Android mobile game section were selected as a case study based on more than 10,000 downloads and user's review rate by April 22, 2014. After that is currently available on the market can play a variety of cases of infant learning Hangul from previous research of R.Caillois offers four categories of play. R.Caillois of Agon, Mimicry, Alea, Ilinx have unique characteristics in comparison with its functional characteristics Hangul four are present any role in Hangul serious mobile games. As a result of the cases selected and the rules of the game will include a maximum of two of the most common types of Agon. Each attribute of the play, rather than one single factor is applied to four kinds of game play performance when properties are distributed to experience together gave the best flow. As a result of this study will be a based research for infants Hangul serious mobile game reflects the properties of the elements of a fun game that you want to combine learning.