• 제목/요약/키워드: fairness and accuracy

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곡면평활화를 고려한 공작기계상에서의 가공곡면 검사 (Machined Surface Inspection Based on Surface Fairing on the Machine Tool)

  • 이세복;김경돈;정성종
    • 대한기계학회논문집A
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    • 제24권4호
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    • pp.937-945
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    • 2000
  • The assessment of machined surface is difficult because the freeform surface must be evaluated by surface fairness as well as dimensional accuracy. In this study, the machined freeform surface is modeled by interpolating the data measured on the machine tool into the mathematical continuous surface, and then the surface model is improved with the parameterization to minimize surface fairness. The accuracy reliability of the measured data is confirmed through compensation of volumetric errors of the machine tool and of probing errors. Non-uniform B-spline surface interpolation method is adopted to guarantee the continuity of surface model. Surface fairness is evaluated with the consideration of normal curvature on the interpolated surface. The validity and usefulness of the proposed method is examined through computer simulation and experiment on the machine tool.

중등 교사와 학생의 환경 교육 교재에 대한 의견 분석 (Secondary Teachers' and Students' Opinion on Environmental Education Textbooks)

  • 신동희;손연아;고희령;이기영;이동엽
    • 한국환경교육학회지:환경교육
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    • 제19권1호
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    • pp.64-79
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    • 2006
  • This study was designed to make valuable suggestions for the development of environmental education(EE) teaching materials through teachers' and students' opinions. In the summer of 2005, an opinionnaire was sent to 1,749 secondary school EE teachers and 270 teachers of them answered. One hundred and six middle school students and 196 high school students in Kyunggi area were also participated in this survey. The opinionnaire in this study was based on the six standards, fairness and accuracy, depth, emphasis on skill building, action orientation, instructional soundness, and usability, developed by NAAEE(1998). Most teachers were totally dependent on textbooks in their teaching EE. They evaluated current EE textbooks most positively in the perspective of 'fairness and accuracy', whereas they evaluated them most negatively in the perspective of 'usability'. The problems of EE textbooks were differently recognized by teachers and students. The lack of contents stimulating students' interest was considered as the most serious problem of EE textbooks by students. Simultaneously, it was considered as the least serious problem of EE textbooks by teachers. Both EE teachers and students expect the future EE textbooks would consist of proper contents to reflect EE characteristics.

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금융시장에서 영업사원의 지각된 평가 공정성과 직무성과 간의 구조적 관계 (Structural Relationship between Salesperson's Perceived Evaluation Fairness and Job Performance in the Financial Market)

  • 이준섭;김지영;이한근
    • 유통과학연구
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    • 제14권12호
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    • pp.141-151
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    • 2016
  • Purpose - Salesperson perceptions of the fairness and accuracy of a performance evaluation system were examined by managerial and professional employees of large organization. The performance evaluation process is central to many personal decisions such as attitude for job and sales performance. This study investigates the relationship between perceived evaluation fairness, job satisfaction, organizational commitment, and sales performance. The main purpose of this study is to develop and empirically test a comprehensive model of salespersons' perceived evaluation fairness on sales performance. For this purpose, we identified the structural relationship between perceived evaluation fairness, job satisfaction, organizational commitment, and sales performance. Also we investigate the mediating effects on job satisfaction and organizational commitment between perceived evaluation fairness and sales performance. Research design, data, and methodology - To empirically test these relationships, data were collected by in-depth interviews from sales managers and questionnaire surveys from 300 salespersons who work for sales area (credit card company, insurance company). Demographically, the overall sample was 91.6% female, 77.9% 30s and 40s, and 34% college educated, with an average tenure with their present organizations of 4 years. The questionnaire was composed of total 20 items dealing with frequency, quality, and consequences of perceived evaluation fairness, job satisfaction, organizational commitment, and sales performance. To test the research hypotheses, collected data analyzed by confirmatory factor analysis (CFA) and structure equation model (SEM). Results - Through extensive and rigorous literature review process of related literature(Perceived evaluation fairness, Job satisfaction, Organizational commitment, Sales performance), research model and research hypothesis was set up. This study obtains the following research results. First, perceived evaluation fairness has a positive effect on job satisfaction, whereas the effects of perceived evaluation fairness on organizational commitment and sales performance did not show statistically significant result. Second, job satisfaction and organizational commitment have complete mediating roles to the relationship between perceived evaluation fairness and organizational commitment, and relationship between perceived evaluation fairness and sales performance. Conclusions - Based on the results, salespersons' perceived evaluation fairness is one of the key independent variable for making high job satisfaction, organizational commitment, and sales performance. Finally the theoretical, managerial implication and research limitations are mentioned in the discussion.

공작기계상에서의 측정데이터를 이용한 자유곡면 생성 (Generation of freeform Surface using Measured Data on the Machine Tool)

  • 이세복
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 1998년도 추계학술대회 논문집
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    • pp.13-18
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    • 1998
  • The assessment of machined surface is difficult because the freeform surface must be evaluated by surface fairness as well as dimensional accuracy. In this paper, the methodology of freeform surface generation using measured data on the machine tool is presented. The reliability of measured points data is obtained by measuring error compensation. The compensated data are formulated through Non-uniform G-spline surface modeling. In order to improve the surface fairness, the generated model si smoothened by parameterization The validity and usefulness of the proposed method are examined through computer simulation and experiments on the machine tool.

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Validity of Language-Based Algorithms Trained on Supervisor Feedback Language for Predicting Interpersonal Fairness in Performance Feedback

  • Jisoo Ock;Joyce S. Pang
    • Asia pacific journal of information systems
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    • 제33권4호
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    • pp.1118-1134
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    • 2023
  • Previous research has shown that employees tend to react more positively to corrective feedback from supervisors to the extent they perceive that they were treated with empathy, respect, and concern towards fair interpersonal treatment in receiving the feedback information. Then, to facilitate effective supervisory feedback and coaching, it would be useful for organizations to monitor the contents of feedback exchanges between supervisors and employees to make sure that supervisors are providing performance feedback using languages that are more likely to be perceived as interpersonally fair. Computer-aided text analysis holds potential as a useful tool that organizations can use to efficiently monitor the quality of the feedback messages that supervisors provide to their employees. In the current study, we applied computer-aided text analysis (using closed-vocabulary text analysis) and machine learning to examine the validity of language-based algorithms trained on supervisor language in performance feedback situations for predicting human ratings of feedback interpersonal fairness. Results showed that language-based algorithms predicted feedback interpersonal fairness with reasonable level of accuracy. Our findings provide supportive evidence for the promise of using employee language data for managing (and improving) performance management in organizations.

방송언어 개선 연구의 현황과 발전 방향 (The Current State and the Development Direction of the Studies on Improving of Broadcasting Language)

  • 조태린
    • 한국어학
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    • 제74권
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    • pp.169-197
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    • 2017
  • The purpose of this paper is to seek the development direction of the studies on improving of broadcasting language, by examining the fruits and the limitations of existing research. Firstly, this paper makes sure that the study on improving of broadcasting language is one of the subtypes of study on broadcasting language. Then the current state of the studies on improving of broadcasting language is analyzed by genre, problem, and assessment standard. According to this analysis, existing research is concentrated too much in certain genres such as current affairs and news, but also in certain problems such as accuracy or publicness infractions. Finally, this paper concludes by suggesting three development directions of the future studies on improving of broadcasting language as follows: (1) Accuracy or publicness related problems need no more studies on themselves but continuous and systematic monitoring and institutional device. (2) We need more interest and research on language used in certain genres such as TV home shopping and commercial break. (3) Fairness or soundness related problems need more studies on themselves, because the judgement or assessment standard of these problems is not only difficult to find out, but also in need of viewer and listener awareness investigation and social agreement procedure.

2009 개정 교육과정에 따른 초등수학 교사용 지도서 검토 연구 (A Study on Elementary Mathematics Teacher's Guide Book according to 2009 Revised Curriculum)

  • 김성준
    • East Asian mathematical journal
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    • 제32권2호
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    • pp.153-174
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    • 2016
  • The purpose of this study is to provide an opportunity for better understanding and application of 2009 revised elementary school mathematics textbooks through focus group's investigations on the elementary mathematics teacher's guide books. First, We survey previous studies on the teacher's guide books to make the frame of investigation. Next, We compose focus group(8 teachers) for 3~4th grades, and analyze the teacher's guide books according to ready-made frame: compliance of curriculum, accuracy and fairness of contents, selection and organization of contents. As results of investigation, system of organization of the teacher's guide books is needed. Goal, contents, teaching methods, and evaluations have to be consistent in describing mathematical terms. And errors in mathematics and mathematics education are examined more carefully. The teacher's guide books afford teachers many materials and informations to teach mathematics through classroom lessons. So more study on the teacher's guide books and developmental study for the model guidebooks is needed along with the revised curriculum and new textbooks.

A Study on the effect of product recommendation system on customer satisfaction: focused on the online shopping mall

  • CHO, Ba-Da;POTLURI, Rajasekhara Mouly;YOUN, Myoung-Kil
    • 산경연구논집
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    • 제11권2호
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    • pp.17-23
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    • 2020
  • Purpose: The purpose of this study is to understand the effect of the unique product recommendation system on customer satisfaction. Research design, data and methodology: The survey method used the self-recording way in which the respondents selected for the study and distributed 300 questionnaires, and with due personal care, researchers collected all the distributed questionnaires. Results: The result implies that the characteristics of the product recommendation system should be more secure and developed. Conclusions: The aspects of the product recommendation system were selected as factors of price fairness, accuracy, and quality through previous studies, and the empirical analysis of the effect of the characteristics of the product recommendation system on customer satisfaction was summarized as follows. Among the attributes of the product recommendation system, the attributes of price fairness, accuracy, and quality affect customer satisfaction. Among them, the beta value of quality was the highest, and the effect of quality was the largest among the three factors. Based on the results of the study, the implications for the characteristics of the product recommendation system are summarized as follows. The aspects of the product recommendation system have a positive effect on customer satisfaction, so it is necessary to fill the needs of consumers based on the survey focused on quality

야구 로봇 심판 도입에 따른 미래 스포츠 변화에 관한 연구 (A Study on Changes in Future Sports According to the Introduction of Baseball Robot Umpire)

  • 박형길;정영재
    • 한국엔터테인먼트산업학회논문지
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    • 제15권6호
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    • pp.93-103
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    • 2021
  • 본 연구는 야구 로봇 심판 도입에 의한 미래의 스포츠 변화를 탐색하기 위한 것이다. 본 연구를 위해서 심층면담 자료, 신문 자료, 국내 논문, 국외 논문, 그리고 인터넷 자료 등을 수집하여 분석했다. 연구의 자료를 통해서 오심에 대한 야구 팬들의 태도를 확인했고 로봇 심판의 장점을 파악했다. 그리고 로봇 심판의 적용에 따른 미래 스포츠의 변화를 추론해 보았다. 본 연구의 결과는 다음과 같다. 첫째, 야구 팬들은 야구 경기에서 발생하고 있는 심판의 오심에 대해서 반감을 나타냈고, 야구 심판에 대해서 불신감을 드러냈으며, 야구에 대한 흥미가 저하되고 있었다. 둘째, 야구 팬들은 심판의 오심을 해결하기 위해서 로봇 심판의 도입이 필요하다고 생각했다. 로봇 심판은 사람보다 정확하고, 일관적이며, 기록성이 뛰어난 장점이 있기 때문이다. 셋째, 심판의 한계를 보완하는 로봇 심판의 보급은 미래 스포츠 경기의 공정성과 윤리성을 강화시켜, 스포츠의 이미지를 긍정적으로 변화시킬 것이다.

온라인 쇼핑몰에서의 서비스품질과 구전, 명성이 쇼핑몰 신뢰도와 충성도에 미치는 영향 (The Effect of the Service Quality, WOM(aternote), and Ruputation of On-line Shopping-Mall on the Trust and Loyalty)

  • 서현석;허주희;나윤규
    • 한국의류산업학회지
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    • 제10권5호
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    • pp.607-617
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    • 2008
  • This research investigated the factors that effect on the trust and loyalty in on-line shopping mall and analyzed a structural relationship of these variables. The variables are service quality, information quality of on-line WOM(afternote), reputation of on-line shopping mall. The Instrument dimensions of service quality are tangibles, responsiveness, assurance, diversity goods and price fairness. The Instrument dimensions of information quality of on-line WOM(afternote) are usefulness, abundance, accuracy and specialty. The Instrument dimensions of reputation of on-line shopping mall are cognizance and comment. The results by LISREL are as follows : There are 7 factors that effects on trust and loyalty. These are tangibles, responsiveness, assurance and price fairness of instrument dimensions of service quality, usefulness, specialty of instrument dimensions of information quality of on-line WOM, cognizance of the Instrument dimensions of reputation of on-line shopping mall. Specially, there are significant point that usefulness and specialty of afternote which can contact easily in on-line shopping mall effect on the trust and loyalty in on-line shopping mall.