• Nutrition Research and Practice
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• 제17권4호
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• pp.812-825
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• 2023

BACKGROUND/OBJECTIVES: This study investigated the importance and performance level of sodium reduction practices in school meal service by school nutrition teachers and dietitians, and compared them according to school level and placement of the school nutrition teacher. SUBJECTS/METHODS: An online survey was conducted with 608 nutrition teachers and dietitians in schools in the Republic of Korea from September 28 to November 12, 2021 (response rate: 57%). The questionnaire comprised 11 items related to sodium reduction practices (purchasing, food preparation and serving, and education). The importance and performance level of each item was rated on a 5-point scale. The mean differences were analyzed using t-tests or one-way analyses of variance and Duncan's post-hoc tests. An importance-performance analysis was performed on sodium reduction practices. RESULTS: Participating in sodium reduction education, sodium reduction education for cooks, and sodium reduction education for students were assessed to have high importance but low performance. Overall, the higher the school level, the lower was the importance level of sodium reduction practices. The performance in kindergartens and elementary schools was higher than that in middle and high schools. The importance in the purchasing category perceived by dietitians was lower as compared to nutrition teachers. In addition, the performance in the purchasing, food preparation and serving, and education categories perceived by dietitians was lower than those of nutrition teachers. CONCLUSION: Sodium reduction education for nutrition teachers and dietitians, cooks, and students should prioritize practicing sodium reduction in school meal service. Specific guidelines for managing sodium reduction at all stages-purchasing, food preparation, and serving-should also be developed. The results could be used as basic data to reduce the sodium content in school meals.

• 영재교육연구
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• 제26권3호
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• pp.427-447
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• 2016

이 연구의 목적은 IPA 기법을 활용하여 과학영재교육 수혜자들이 경험한 교육프로그램의 중요도와 만족도에 대한 인식을 분석하고, 과학영재들의 요구에 맞는 교육프로그램 제공을 위한 개선사항을 도출하는 것이다. 이를 위하여 과학영재교육 수혜자 288명을 대상으로 설문 및 심층면담을 실시하였다. 수집된 자료는 SPSS 20.0을 이용하여 교육프로그램에 대한 중요도와 만족도의 차이를 분석하기 위해 대응표본 t-검정을 실시하였고, 교육프로그램 개선 사항을 탐색하기 위해 중요도-만족도 분석(Importance-Performance Analysis; IPA)을 실시하였다. 분석 결과 과학영재교육 수혜자들은 대체로 기존의 영재교육 프로그램에 대한 중요도보다 만족도가 낮게 나타났다. 또한 학교 급에 따라 요구하는 교육프로그램의 유형에 차이가 있었다. 즉, 초등학교 단계일수록 현장견학, 캠프 등 체험 중심의 교육, 중학교 단계는 탐구활동 중심의 교육, 고등학교 단계는 연구 중심의 교육을 선호하는 것으로 나타났다. 그러나 과학영재들의 진로탐색이나 리더십 향상을 위한 교육프로그램은 학교 급에 관계없이 시급하게 개선이 필요한 유형으로 인식하고 있었다. 이 연구는 착수효과를 고려하여 과학영재들이 요구하는 교육프로그램 유형을 분석했다는 점에서 의의가 있다.

• 한국생활과학회지
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• 제21권2호
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• pp.389-405
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• 2012

The purposes of this study were to investigate students' perception on importance and performance of service quality of university foodservice, and to examine Importance-Performance Analysis(IPA) of foodservice quality for male and female students. A total of 500 university students in Daejeon were surveyed and 432 responses were returned. Excluding responses with significant missing data, 412 responses were used for data analysis. In terms of importance of service quality attributes, 'sanitation(4.74)' category received the highest score, followed by 'food(4.36)', 'service(4.22)', 'convenience(4.01)', 'menu(3.90)' and 'atmosphere(3.73)'. In terms of performance, the highest service quality attribute was associated with 'convenience(3.30)', followed by 'service(3.06)', 'sanitation(2.95)', 'food(2.88)', 'atmosphere(2.79)' and 'menu(2.68)'. As the results of IPA, 'staff's kindness', 'overall quality of service', 'taste of the food', 'freshness of the food', 'overall quality of the food', and 'cleanliness of the facility' fell into the Quadrant IV(Focus here) for female students. On the other hand, male students' IPA grid illustrated that 'taste of the food', 'freshness of the food', 'nutrition of the food', 'sanitation of the food', and 'sanitation of the utensils' fell into Quadrant IV(Focus here).

• 동아시아식생활학회지
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• 제23권6호
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• pp.850-861
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• 2013

This study aimed at investigating any differences perceived between the contractor and the contractee based on an importance-performance analysis (IPA) of foodservice quality attributes. Questionnaires were distributed to 200 personnel concerned in the Busan, Ulsan and Kyungnam areas and a total of 134 valid responses were used for analysis. Of the 23 foodservice quality attributes, the factors of 'food quality', 'employee service', 'hygiene and safety', 'customer orientation' and 'operation quality' were induced from a scale purification process through the exploratory factor analysis. The level of importance (p<0.01) of the 'hygiene and safety' factor and 'employee service' factor was not found to be significantly different between the groups. In the level of performance, the factors of 'food service', 'employee service', 'customer orientation' and 'operation quality' were found to be perceived significantly lower than expected by the contractor group. In the importance level, 'food quality', 'employee service', 'hygiene and safety', 'customer orientation' and 'operation quality' were rated by the contractor as 4.03, 4.30, 4.27, 4.01 and 4.12 points, respectively. In contrast, in the performance level, perceived 'food quality', 'employee service', 'hygiene and safety', 'customer orientation' and 'operation quality' were evaluated as 3.57, 3.94, 4.06, 3.83 and 3.95 points, respectively.

• 한국콘텐츠학회논문지
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• 제20권6호
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• pp.156-166
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• 2020

본 연구는 IPA를 활용하여 의료기관에 근무하는 임상영양사의 임상영양관리업무의 수행도와 중요도의 인식차이를 조사하고자 하였다. 이를 위해 의료기관에 근무하는 100명의 영양사를 대상으로 분석하였다. 임상영양관리업무 17개 항목 모두에서 수행도와 중요도 인식에 유의한 차이가 나타났다. 중요도와 수행도 인식의 차이가 가장 큰 항목은 영양사의 임상영양 교육 참여 및 관련 직무 개발 활동(1.38), 가장 낮은 항목은 치료식 식사제공(0.69)으로 나타났다. IPA분석 결과 중요도와 수행도 모두 낮은 임상영양교육 참여 및 관련 직무 개발 활동은 우선적으로 개선해야 할 항목으로 분석되었다. 이를 위해 영양사에 대한 내외부 교육이 필요하다. 마지막으로 임상영양사를 의료인 범주에 포함시키는 정책과 효과적인 치료를 위해 의료진과 영양서비스관리에서의 협진이 무엇보다도 필요하다.

• 한국융합학회논문지
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• 제11권6호
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• pp.367-374
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• 2020

이 연구는 특수교육 대상 아동 부모의 가족지원에 대한 중요도와 실행도를 살펴봄으로써 가족지원 서비스의 우선순위 설정에 필요한 기초 자료를 제시하기 위하여 수행되었다. 연구 목적 달성을 위하여 전국의 특수교육 대상 아동 부모 220명을 대상으로 설문조사를 실시하였다. 연구 결과, 29개의 가족지원 서비스 항목 모두 중요도는 높게 평정되었으나 실행도는 낮게 평정되었고, 통계적으로 유의미한 차이가 발견되었다. 또한 중요도 및 실행도 분석 결과 신체적·물질적 안녕 지원 및 장애 관련 지원 관련 가족지원 서비스는 중요도는 높지만 실행도는 낮은 서비스로 평가되었고, 가족 지원 서비스에 있어 우선순위로 제시되어야 할 과제인 것으로 나타났다. 반면 가족 상호작용 지원 또는 정서적 안녕 지원 영역에 해당되는 가족지원 서비스는 중요도는 낮지만 실행도는 높은 서비스로 평가되어 과잉 노력을 지양해야 하는 서비스인 것으로 나타났다. 이러한 연구 결과를 바탕으로 향후 특수교육 대상 아동의 가족지원 서비스 운영을 위한 방향을 제언하였다.

• 한국멀티미디어학회논문지
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• 제24권10호
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• pp.1414-1424
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• 2021

In this paper, the importance of input factors of a DNN (Deep Neural Network) PM_2.5 forecasting model using LRP(Layer-wise Relevance Propagation) is analyzed, and forecasting performance is improved. Input factor importance analysis is performed by dividing the learning data into time and PM_2.5 concentration. As a result, in the low concentration patterns, the importance of weather factors such as temperature, atmospheric pressure, and solar radiation is high, and in the high concentration patterns, the importance of air quality factors such as PM_2.5, CO, and NO₂ is high. As a result of analysis by time, the importance of the measurement factors is high in the case of the forecast for the day, and the importance of the forecast factors increases in the forecast for tomorrow and the day after tomorrow. In addition, date, temperature, humidity, and atmospheric pressure all show high importance regardless of time and concentration. Based on the importance of these factors, the LRP_DNN prediction model is developed. As a result, the ACC(accuracy) and POD(probability of detection) are improved by up to 5%, and the FAR(false alarm rate) is improved by up to 9% compared to the previous DNN model.

• Geomechanics and Engineering
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• 제29권3호
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• pp.369-376
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• 2022

Accurately evaluating and predicting the performance of facilities is a key task in establishing a maintenance strategy for facilities. The importance of performance evaluation is becoming more pronounced, especially when the aging of facilities requires a huge budget. In this study, performance assessment models were developed for road and railway tunnels. Delphi analysis was performed to identify sub-elements necessary to evaluate the performance of a tunnel. The relative importance of the evaluation factors was derived from the AHP analysis. The correlation analysis was performed between each assessment factor and the final result to verify the significance of the model. For the correlation analysis, the survey data measured through precision safety diagnosis in tunnels in use was applied. The cost effectiveness analysis was also conducted according to the scenarios with different composition of performance factors in order to improve the practical applicability of the evaluation model developed in this study.

• 디지털산업정보학회논문지
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• 제20권2호
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• pp.1-10
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• 2024

For the purpose of predicting credit card customer churn accurately through data analysis, a model can be constructed with various machine learning algorithms, including decision tree. And feature importance has been utilized in selecting better input features that can improve performance of data analysis models for several application areas. In this paper, a method of utilizing feature importance calculated from the MDI method and its effects are investigated in the credit card customer churn prediction problem with classification trees. Compared with several random feature selections from case data, a set of input features selected from higher value of feature importance shows higher predictive power. It can be an efficient method for classifying and choosing input features necessary for improving prediction performance. The method organized in this paper can be an alternative to the selection of input features using feature importance in composing and using classification trees, including credit card customer churn prediction.

• 품질경영학회지
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• 제23권3호
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• pp.69-83
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• 1995

In a large number of literature on of inspection tasks, one of the most consistent findings is the existence of large and consistent differences among inspectors. It is possible that the individual difference is described by the difference of cognitive skills, because cognitive skills are required more than manual skills in inspection tasks. Therefore, a set of cognitive factors in human information processing may underly human performance in inspection tasks. In this study, a cognitive skill was described as the relative importance of the cognitive factors involved. A hierarchical task analysis and a fuzzy hierarchical analysis were used to represent how the importance of cognitive factors contribute to inspection performance. An experiment was conducted using the computer simulations of PCB inspection tasks. The results revealed that the subject group with better performance showed the importance weights of cognitive factors in the following rank; (attention, perception, judgement, classification, recognition)<(detection)$\ll$(memory). The results of the experiment can serve as a selection criterion for efficient inspection performance and the information of skilled learning for an inspection training program. The usefullness of a hierarchical task analysis and a fuzzy hierarchical task analysis for the analysis of cognitive tasks are also confirmed.