• Title/Summary/Keyword: 컴퓨터시스템교육

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A Study on the Development of Collaborative Learning Model and Behavioral Elements in e-Learning Environment (e-Learning 환경에서의 협력학습을 위한 학습모형 및 학습행위요소 개발)

  • Lee, Insook;Leem, Junghoon;Sung, Eunmo;Jin, Sunghee
    • The Journal of Korean Association of Computer Education
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    • v.9 no.2
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    • pp.27-36
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    • 2006
  • This study intends to present essential models for collaborative learning in e-learning environment as well as to analyze learning behavior elements appearing in collaborative learning activities. In order to achieve goal of the study, the researchers analyzed existing cooperative learning models for face-to-face classroom, collaborative activity models based on instructional theory, and the structures and activities elements of learning community and collaborative activity models focusing on e-learning environment. As a result of the study, the researchers produced a generalizable collaborative learning model for e-learning which include general collaborative learning model, and further analyzed specific learning behaviors performed by learners while they proceed in this model based learning processes. The adequacy of this model and reliability of learning behavior elements were tested through experts' review meetings. The research result, suggesting generalizable collaborative learning model as well as learning behaviors elements which might occur within e-learning based collaborative learning, might work as a foundational model for software infrastructure and e-learning solution business. Moreover, its value might be maximized if its being used for enhancing learning content interoperability and reuse as well as for establishing international standardization for collaborative technology.

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Automatic Extract User Intention from Web Search Log (웹 정보 검색 이력을 이용한 사용자 의도 자동 추출)

  • Park, Kinam;Jung, Soonyoung;Suh, Taewon;Ji, Hyesung;Lee, Taemin;Lim, Heuiseok
    • The Journal of Korean Association of Computer Education
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    • v.12 no.6
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    • pp.21-32
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    • 2009
  • This paper proposes a method to extract a user's intention automatically and implementation of intention map that support a user can appropriate search results using a user' information need accurately. It selects user intention based on searching history obtained from previous users' same queries and extracts user intentions by using clustering algorithm and user intention extraction algorithm, extracted user intentions are represented in an intention map base on a theory of knowledge representation. For the efficiency analysis of intention map, we extracted user intentions using 2,600 search history data which provided by a current domestic commercial search engine. The experimental results using the information intention map search when using general search engines represent more than satisfaction was statistically significant.

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Efficient Processing of Grouped Aggregation on Non-Uniformed Memory Access Architecture (비균등 메모리 접근 구조에서의 효율적인 그룹화 집단 연산의 처리)

  • Choe, Seongjun;Min, Jun-Ki
    • Database Research
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    • v.34 no.3
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    • pp.14-27
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    • 2018
  • Recently, to alleviate the memory bottleneck problme occurred in Symmetric Multiprocessing (SMP) architecture, Non-Uniform Memory Access (NUMA) architecture was proposed. In addition, since an aggregation operator is an important operator providing properties and summary of data, the efficiency of the aggregation operator is crucial to overall performance of a system. Thus, in this paper, we propose an efficient aggregation processing technique on NUMA architecture. Our proposed technique consists of partition phase and merge phase. In the partition phase, the target relation is partitioned into several partial relations according to grouping attribute. Thus, since each thread can process aggregation operator on partial relation independently, we prevent the remote memory access during the merge phase. Furthermore, at the merge phase, we improve the performance of the aggregation processing by letting each thread compute aggregation with a local hash table as well as avoiding lock contention to merge aggregation results generated by all threads into one.

A comparative study on the Activating Factors of domestic and overseas scuba diving resorts using delphi method

  • Park, Sung-Soo
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.3
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    • pp.239-249
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    • 2022
  • This study aims to analyze and compare the activating factors of domestic and overseas scuba diving resorts. Our delphi survey was conducted three times in 30 experts who involved in operation and management including scuba diving resort management representative and training team leader. As a result of comparing the activating factors at domestic versus overseas, it was found that common important activating factors included expansion of convenient facilities at public diving places, installation of safety and medical facilities for divers, development of first aid system including AED and oxygen ventilator, requirement of convenient facilities such as water lift and toilet in diving boat, installation of diving boat screw safety system, local boat operation guideline, regular course training program for scuba diving, employment of professional scuba diving instructor and guide, communication and promotion through various SNS portals, promotion by divers' word of mouth, involvement in regional Diving Resort Association, involvement in Korean Diving Association, communication and mutual benefit with local fishing villages, and linkage policy with local tourism industry.

Study on Course-Embedded Learning Achievement Evaluation and Adaptive Feedback (교과기반 학습성취 평가 및 적응형 피드백 시스템 설계)

  • Chung, Hyun-Sook;Kim, Jung-Min
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.6
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    • pp.553-560
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    • 2022
  • The research of course-embedded learning evaluation method, which can be used to measure the competency of learners by evaluation of learning outcomes, has been performed for competency-based education in the university. In this paper, we propose an learning evaluation and adaptive feedback model based on learning outcomes, learning subjects, learning concepts graph, and an evaluation matrix. Firstly, we define the layered learning outcomes, a graph of learning subjects and concepts, and two association matric. Secondly, we define algorithms to calculate the level of learning achievement and the learning feedback to learners. We applied the proposed method to a specific course, "Java Programing", to validate the effectiveness of our method. The experimental results show that our proposed method can be useful to measure the learning achievement of learners and provide adaptive feedbacks to them.

Operation System of Capstone Design Based on Continuous Industry Related Project (지속적인 기업체 연계 프로젝트 기반의 캡스톤 설계 운영시스템)

  • Kwon, Soon-Kak;Kim, Seong-Woo;Park, Yoo-Hyun
    • Journal of Engineering Education Research
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    • v.16 no.3
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    • pp.61-68
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    • 2013
  • Capstone design course has been opened in order to improve students' practical project in undergraduate courses. This paper presents the efficient operation method for capstone design course. The proposed capstone design is operated such as outside outsourcing institute of industry, that is, the industry suggests the topics and fourth grade students work on this project during this year, and third grade students take over same project and proceed to improve in next year, so it is the continuous operating. Based on this system, industry can get the desired project outputs, and the university can give practical team project experience for students, so a mutual benefit between the industry and university can be possible. The proposed operating system is actually applied to the department of computer engineering, the questionnaire surveys are performed to participated students and corporate mentors, and then the operating results of the proposed system are analyzed.

A Grading System of Word Processor Practical Skill Using HWPML (HWPML을 이용한 워드프로세서 실기 채점 시스템)

  • Ha, Jin-Seok;Jin, Min
    • Journal of The Korean Association of Information Education
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    • v.7 no.1
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    • pp.37-47
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    • 2003
  • A grading system of practical word processor skills is designed and implemented by using HWPML(Hangul Word Processor Markup Language) which is a product of Hangul and Computer Co Ltd. By using HWPML, which is a markup tag structure of Hangul file, Hangul files can be edited in other application programs. Authorized users can make questions. However, only the manager is allowed to register answers to the questions in order to maintain the correctness of grading. The result of test is stored in the database and the statistics on pass or failure can be shown interactively. The number of taking test and scores for each user are stored in the database and they can be accessed to whenever the user wants them. Comments on the test results are provided by the manager so that learners can intensity their weak points.

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Modeling of an Achievement Evaluation Support System Using Achievement Standards-based Integrated Data Model (성취기준 통합 데이터 모델을 통한 성취평가 지원 시스템 모델링)

  • Chung, Hyunsook;Kim, Jungmin
    • The Journal of Korean Institute of Information Technology
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    • v.16 no.12
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    • pp.115-125
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    • 2018
  • The one of goals of the 2015 revised national curriculum is the successful application of achievement standards-based assessment, which assesses both the results and process of learning, ensuring that all students have achieved the educational objectives, to schools. Therefore, an achievement standards and evaluation support system is required to manage a whole process of teaching and learning based on achievement standards and provide the personalized assessment feedback to students to improve their achievement levels. In this paper, we perform a design of integrated data model and system of teaching plan, subject content, assessment plan, assessment result, and feedback data is required based on an achievement standards repository. In addition, we create a student's dashboard webpage, which representing different types of achievement of the student, and perform the comparative analysis of data models to evaluate the quality of the proposed model.

Guest Movement Detection and Analysis System for Integrated Event Venue Operation Management (통합적 행사장 운영을 위한 관람객 동선감지 분석 시스템)

  • Kwon, Hee-Gu;Lee, Jae-Won
    • The Journal of the Korea Contents Association
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    • v.22 no.6
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    • pp.15-23
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    • 2022
  • The operation method of offline venues such as local festivals usually has problems such as the absence of real-time events and booth information, wasting time in the process of purchasing and receiving goods, and stagnating the movement of guests. This study increases the convenience of guests and managers by integrating all contents in the venue in the form of booth, thereby increasing the uniformity of event information and the efficiency of booth operation. In addition, a system was designed to minimize movement problems and improve performance by detecting the movement of guests within the venue and increasing the efficiency of arranging booths based on location data. It has been developed as a low-cost system that measures wireless packets with portable wireless LAN APs and control units. This has advantages in the operation of the venue, which consists of the installation and dismantling of variable booths in a short period of time. It is expected that the integrated operation of the venue will be utilized by linking the movement data of guests to activate visits and increase sales through data-based promotions.

Design of Communication Module for Virtual Serial Wireless LAN (가상 시리얼 무선랜 통신 모듈 설계)

  • Jang-Geun Ki
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.23 no.5
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    • pp.35-40
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    • 2023
  • In this paper, a serial wireless LAN virtual communication module that allows microprocessors to communicate wirelessly with other peripheral devices is developed as part of a study to build an online virtual experiment system that allows them to practice virtually anytime, anywhere in microprocessor application education in electrical and electronic control engineering. The developed module is connected to the microprocessor in the virtual experiment system through serial interface. The serial data is sent to and received from peripheral devices through the wireless LAN interface of the host computer where the virtual experiment software is being performed. In order to verify the function of the developed serial wireless LAN virtual communication module, experiments were conducted in which a microprocessor in the virtual experiment system exchanged data with an Android smartphone through a wireless LAN interface of a host computer. The developed serial wireless LAN communication module is expected to enable virtual microprocessors to communicate with surrounding real devices through wireless LAN, which can be efficiently used in microprocessor application education.