• Journal of Korean Society for Geospatial Information Science
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• v.17 no.2
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• pp.81-90
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• 2009

Mountain trails play an important role in the daily life and health of the citizens, and also are major areas for recreation operators strive to balance the needs of pedestrian with the needs of wildlife and health improvement. In this view point, this research aims at analyzing the slope of mountain trails using mobile GPS and suggesting the suitable path to citizens for improving health. The result shows that the trail slope analysis by using mobile GPS could be effectively evaluated the degree of walk difficulty.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06b
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• pp.244-246
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• 2006

웹 기반 교육 시스템에서 문제 집합 구성은 주로 고정 출제 방식, 무작위 출제 방식, 난이도에 따른 출제 방식으로 이루어진다. 문제 집합의 구성 시 문제 은행에서 문제 난이도에 대한 객관성을 유지하는 것이 무엇보다 중요하다. 따라서 본 논문에서는 난이도를 재조정하는데 학습자들의 문제 풀이 결과를 반영하는 새로운 난이도 재조정 알고리즘을 제시한다. 본 논문에서 제안하는 학습자 피드백 기반 문제 수준 조절 방법은 개인 시험 결과, 그룹 시험 결과 그리고 개인의 특정 섹션 시험 결과를 함께 고려하여 난이도를 조절한다. 기존 알고리즘과 비교 분석한 결과 문제 난이도의 변화율 측면에서 보다 현실적인 문제 난이도 변화를 확인할 수 있었다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.11a
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• pp.214-215
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• 2013

Recently, Construction industry has been trying to reduce environmental impacts reflecting the global trend 'Green Growth'. However most of previous studies focused on operation & maintenance phases and do not have been approached construction phases. In addition, environmental management factors by project participants are assessed with only weight of factors, overlooking these work difficulty. Therefore This study aims to deducted the critical environmental management factors by project participants considering work difficulty in plan, design and construction phase. The basis data is collected through literature reviews and interview targeting each project participant and analyze these data using importance-difficulty analysis(IDA).

• 대한공업교육학회지
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• v.44 no.1
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• pp.114-140
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• 2019

The purpose of this research is to analyze a principal's job at a Vocational High School using DACUM Task Analysis Method. The contents of this research are to set the order after deriving the duties and tasks of the principal., then to verify as the importance, difficulty, and frequency of each task, and also to indicate whether it is an essential capability to have in the early stages of one's duty. Finally, based on the job analysis results, a DACUM chart was developed by the principal of the Vocational High School. The DACUM Task Analysis Workshop was attended by one DACUM analyst with LEVEL - 1 license, seven DACUM members with more than four years experience, one secretary and two administrative assistants for a two-day period. The results of the research are as follows; First, the Vocational High School Principal is defined as a school administrator who operate the vocational education curriculum of in the specialized and customized high schools of industrial demand development and the job area. The analysis derived 11 duties and 95 tasks of the Principal. Second, the importance, difficulties, and frequency of each task were divided respectively into high (A), moderate (B), and low (C), and the consensus of the experts was made to determine whether the core capabilities are acquired early on the job. Third, based on the analysis results, a DACUM Task Analysis chart of the Vocational High School principals was presented. In addition, while engaged on the job of the vocational high school principal, a list of 49 general knowledge and abilities, 16 tools, Integrated data and fixtures are required. Along with 28 attitudes 33 future prospects and characteristics of the Vocational High School principal was presented.

• Journal of Korea Society of Industrial Information Systems
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• v.9 no.4
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• pp.47-55
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• 2004

Most questions made for remote examinations on web-based education system use methods of making questions using fixed questions or randomly using item pools or automatically using degree of difficulty. Particularly, automatically selection methods using degree of difficulty is the kernel of a question that objectivity of examination questions by degree of difficulty adjustment based result of examination. This paper is use automatically selection methods for examination on web-based education system. Therefore we present new algorithms of mediateness degree of difficulty as regards education ability of students for adjust the degree of difficulty. We identified this algorithms is more effective as compared with previously algorithms on web-based education system

• Journal of Digital Convergence
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• v.13 no.6
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• pp.141-150
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• 2015

This study examined the negative influence of ambiguity on the attitude toward ads by using mediating variable, perceived interpretation difficulty. It also tested the moderating effect of thinking style between ambiguity and perceived interpretation difficulty. In results, we found as follows. 1) Perceived interpretation difficulty is higher in case of higher ambiguity than lower one. 2) The influence of ambiguity on perceived interpretation difficulty is moderated by thinking style. 3) Attitude toward ads is more unfavorable in higher perceived interpretation difficulty than lower one. The results of this study may provide the implications that ambiguity ads using digital convergence media has to be connected to positive attitude for being successful and marketing staffs must consider thinking style as a key success factor to establish global advertising strategy.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.29-30
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• 2022

Curriculum learning은 딥러닝의 성능을 향상시키기 위해 사람의 학습 과정과 유사하게 일종의 'curriculum'을 도입해 모델을 학습시키는 방법이다. 대부분의 연구는 학습 데이터 중 개별 샘플의 난이도를 기반으로 점진적으로 모델을 학습시키는 방안에 중점을 두고 있다. 그러나, coarse-to-fine 메카니즘은 데이터의 난이도보다 학습에 사용되는 class의 유사도가 더욱 중요하다고 주장하며, 여러 난이도의 auxiliary task를 차례로 학습하는 방법을 제안했다. 그러나, 이 방법은 혼동행렬 기반으로 class의 유사성을 판단해 auxiliary task를 생성함으로 다중 레이블 분류에는 적용하기 어렵다는 한계점이 있다. 따라서, 본 논문에서는 multi-label 환경에서 multi-class와 binary task를 생성하는 방법을 제안해 coarse-to-fine 메카니즘 적용을 위한 방안을 제시하고, 그 결과를 분석한다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.26 no.1
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• pp.135-170
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• 2015

This study aimed to investigate the transition of academic libraries' jobs by developing a model based on a shift of library generations including Library 1.0, Library 2.0, and Library 3.0 corresponding to the shift of web generations and to explore generational characteristics of library duties as well. The research used three phases of procedure: literature review about different library generations; job analyses for academic libraries in South Korea and the U.S.A.; the Delphi technique in tree sequential order. The research findings were as follows. First of all, there were 170 duties that continued from Library 1.0 to Library 3.0. There were 58 duties which continued from Library 2.0 to Library 3.0 whereas three duties that continued from Library 1.0 to Library 2.0. In addition, three distinctive duties existed only in Library 1.0 whereas one unique duty was only in Library 2.0. Library 3.0 generated 25 new duties. Secondly, considering general characteristics which cover specific parts of individual duties, there was a significant increase in importance, difficulty, and frequency of library administration throughout the three generations. In terms of importance, difficulty, and frequency of collection development and management, there was a significant increase only from Library 2.0 to Library 3.0. Considering information organization, there was a significant decrease in importance from Library 1.0 to Library 2.0. In addition, there was a significant decrease in frequency and there was no significant difference in difficulty throughout the three generations. In the case of information service, while there was a significant increase in importance among three generations, there was a significant increase in difficulty only from Library 1.0 to Library 2.0. However, there was no generational difference in frequency. With the respect of information system development and management, there was a significant increase in importance and frequency throughout the three generations, but there was no significant difference in difficulty among three generations.

• Communications of Mathematical Education
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• v.18 no.2 s.19
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• pp.239-250
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• 2004

수학적 힘의 함양과 문제해결력의 신장을 위한 수학교육에서 확률영역은 중요한 학습소재임에도 불구하고, 확률영역은 어려운 것으로 고착되었다. 이 연구에서는 학생들이 확률영역의 어떤 부분을 어려워하고 이해하기 힘들어하는지를 구체적 문항분석을 통하여 알아봄으로서 교수-학습의 기초자료를 제공하고자한다. 이를 위하여, 지난 10년간 출제되었던 대학수학능력시험의 확률영역 16문항을 고등학교 학생 220명에게 실시하고, 고전검사이론과 문항반응이론울 적용하여 그 결과를 분석하였다. 고전검사이론에서는 신뢰도와 변별도를 측정하였고, 문항반응이론에서는 Rasch 1-모수 문항반응모형에 근거한 BIGSTEP을 사용하여 내적타당도와 난이도를 측정하였다.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.429-430
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• 2016

본 연구는 핵심기본간호술을 중심으로 간호학생이 학년별에 따라 학습경험, 중요도 인식, 수행자신감 학습 자기효능감에 어떤 차이가 있는지를 파악하기 위해 실시한 서술적 조사연구이다. 연구대상자는 D지역 소재 일개대학 간호학과 재학중인 231명이었으며, 자료 수집은 2015년 5월에서 6월 까지 실시하였다. 자료 분석은 SPSS 21.0 Program을 이용하여 t-test로 분석하였다. 연구결과는 대상자의 학습경험은 학년간의 유의한 차이가 있었다(t=5.009, p<.001). 핵심기본간호술 난이도에 따른 학년별 학습경험의 차이검정을 살펴보면 핵심술 상영역, 핵심술 중영역, 핵심술 하영역에서 모두 학년간에 유의한 차이가 있었다. 중요성인식은 학년간에 유의한 차이는 없었다(t=.288, p>.773). 핵심기본간호술 난이도에 따른 학년별 차이는 핵심술 상영역과 핵심술 하영역은 학년간에 유의한 차이가 있었다. 그러나 핵심술 중영역은 학년간의 유의한 차이가 없었다. 수행자신감은 학년간에 유의한 차이가 있었다(t=7.845, p<.001). 핵심기본간호술 난이도에 따른 학년별 수행자신감의 차이를 살펴보면 핵심술 상영역, 핵심술 중영역, 핵심술 하영역모두에서 학년간에 유의한 차이가 있었다. 학습 자기효능감은 학년간에 유의한 차이가 있었다(t=2.370, p<.019). 따라서 본 연구결과를 토대로 각 학년별 효율적인 실습운영 방안을 모색할 필요가 있으며, 아울러 학습경험을 높이고 중요성인식에 따른 학습경험을 높이고 수행자신감과 학습 자기효능감을 증진시킬 수 있는 교과과정 모색이 절실히 필요하다.