• Title/Summary/Keyword: systems-thinking

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A Study on Performance Assessment Methods by Using Fuzzy Membership Function and Fuzzy Reasoning

  • Je, Sung-kwan;Jang, Hye-Won;Shin, Bok-Suk;Kim, Cheol-Ki;Jaehyun Cho;Kim, Kwang-Baek
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2003.09a
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    • pp.608-611
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    • 2003
  • Performance assessment was introduced to improvement of self-directed learning and method of assessment for differenced learning as the seventh educational curriculum is enforced. Performance assessment is overcoming limitation about problem solving ability and higher thinking abilities assessment that is problem of a written examination and get into the spotlight by way for quality of class and school normalization. But performance assessment has problems about possibilities of assessment fault by appraisal, fairness, reliability, and validity of grading, ambiguity of grading standard, difficulty about objectivity security etc. This study proposes fuzzy performance assessment system to solve problem of the conventional performance assessment. This paper presented an objective and reliable performance assessment method through fuzzy reasoning, design fuzzy membership function and define fuzzy rule analyzing factor that influence in each sacred ground of performance assessment to account principle subject. Also, performance assessment item divides by formation estimation and subject estimation and designed membership function in proposed performance assessment method. Performance assessment result that is worked through fuzzy performance assessment system can pare down burden about appraisal's fault and provide fair and reliable assessment result through grading that have correct standard and consistency to students.

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Effects Of Computer - Based Information Load On Market Categorization Decision: An Experiment (컴퓨터 정보의 부하가 시장분류 의사결정에 미치는 영향: 실험연구)

  • Jo, Nam-Jae
    • Asia pacific journal of information systems
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    • v.4 no.2
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    • pp.214-246
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    • 1994
  • As the use of information technology continues to bring a dramatic increase in the amount of data available to managers, researchers have noted that having too much data can be as much of a problem as having too little. It becomes very important to understand the effects of "information explosion" on the way managers perform their work. This study examines the effect of the amount of available data on the process and outcome of thinking within a context where managers are equipped with computing tools. The purpose of this study is to better understand how managers respond cognitively to increased information availability. In this experiment with 104 MBAs three groups of subjects were asked to identify high and low potential market categories for effective direct mail sales based on three different amount of computer-based socioeconomic data designed based on existing research on cognition and information overload. Analyses of the outcomes showed that the group with medium amount of data used data and computer-based analysis tools most effectively and efficiently. We expect that the study will provide us a base to relate future MIS research to theories on cognition in such related fields as psychology and organizational behavior.

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Development of Customer Oriented Intelligent Shopping Mall System (고객 지향 지능형 쇼핑몰 시스템의 개발)

  • Kim Hyun-Ki;Park Sung-Jin;Lim Han-Kyu
    • Journal of Korea Society of Industrial Information Systems
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    • v.9 no.3
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    • pp.55-63
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    • 2004
  • Most of current shooing malls on the internet do not satisfy all customers because they present arrangements of goods and suggestions uniformly and comprehensively according to the thinking of their managers. When classifying into groups according to generations, gender, income, job, hobby, etc. the propensity of purchase is showed differently and the interest and real purchasing power of the customer is different in shopping malls. This paper describes the development of customer oriented intelligent shopping mall system that is added not only statistical analysis dynamical activity of customers but also weight and construct optimal according to group of goods automatically.

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Design Fuzzy Controller for the Ball Positioning System Based on the Knowledge Acquisition and Adaptation

  • Hyeon Bae;Jung, Jae-Ryong;Kim, Sungshin
    • Journal of the Korean Institute of Intelligent Systems
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    • v.11 no.7
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    • pp.603-610
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    • 2001
  • Industrial processes are normally operated by skilled humans who have the cumulative and logical information about the system. Fuzzy control has been investigated for many application. Intelligent control approaches based on fuzzy logic have a chance to include human thinking. This paper represents modeling approach based upon operators knowledge without mathematical model of the system and optimize the controller. The experimented system is constructed for sending a ball to the goal position using wind of two DC motors in the predefined path. A vision camera to mimic human eyes detects the ball position. The system used in this experiment could be hardly modeled by mathematical methods and ould not be easily controlled by conventional manners. The controller is designed based on the input-output data and experimental knowledge obtained by trials, and optimized under the predefined performance criterion. And this paper shows the data adaptation for changeable operating condition. When the system is driven in the abnormal condition with unconsidered noise, the new optimal operating parameters could be defined by adjusting membership functions. Thus, this technique could be applied in industrial fields.

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Biobehavioral Health Research: A nursing study of women with and without fibromyalgia

  • Landis, Carol A.;Lentz, Martha J.
    • Perspectives in Nursing Science
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    • v.2 no.1
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    • pp.37-47
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    • 2005
  • Biobehavioral nursing research is focused on generating knowledge that examines relations among biological, behavioral, and social dimensions of health to improve outcomes. In this paper we review the findings of a biobehavioral nursing study of individuals with fibromyalgia (FM) that was framed from the perspective of an individual human response model, the FM literature, and our previous studies in midlife women. We were particularly interested in the studying the role of 'arousal' secondary to pain or to dysregulated hypothalamic-pituitary-adrenal (HPA) axis hormones during sleep and the impact on symptom expression. Unexpectedly, we did not find evidence of, arousal' or abnormal amounts of HPA axis hormones but we did find reduced amounts of growth hormone (GH) and prolactin (PRL) and of sleep spindle activity, a biomarker of sleep maintenance. We discuss these new findings and how our thinking was re-shaped to better understand the role that disturbed sleep plays in symptom expression in FM. It is argued that disturbed sleep maintenance mechanisms coupled with dysregulated somatotrophic-growth hormone axis and sleep-related PRL render individuals vulnerable to the development of or exacerbations of FM symptoms.

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A Study on Performance Assessment Methods by Using Fuzzy Logic

  • Kim, Kwang-Baek;Kim, Cheol-Ki;Moon, Jung-Wook
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.3 no.2
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    • pp.138-145
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    • 2003
  • Performance assessment was introduced to improvement of self-directed learning and method of assessment for differenced learning as the seventh educational curriculum is enforced. Performance assessment is overcoming limitation about problem solving ability and higher thinking abilities assessment that is problem of a written examination and get into the spotlight by way for quality of class and school normalization. But, performance assessment has problems about possibilities of assessment fault by appraisal, fairness, reliability, and validity of grading, ambiguity of grading standard, difficulty about objectivity security etc. This study proposes fuzzy performance assessment system to solve problem of the conventional performance assessment. This paper presented an objective and reliable performance assessment method through fuzzy reasoning, design fuzzy membership function and define fuzzy rule analyzing factor that influence in each sacred ground of performance assessment to account principle subject. Also, performance assessment item divides by formation estimation and subject estimation and designed membership function in proposed performance assessment method. Performance assessment result that is worked through fuzzy performance assessment system can pare down burden about appraisal's fault and provide fair and reliable assessment result through grading that have correct standard and consistency to students.

Development of a Robot Personality based on Cultural Paradigm using Fuzzy Logic (퍼지 로직을 이용한 문화 패러다임 기반의 로봇 성격 개발)

  • Qureshi, Favad Ahmed;Kim, Eun-Tai;Park, Mi-Gnon
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2008.04a
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    • pp.385-391
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    • 2008
  • Robotics has emerged as an important field for the future. It is our vision that robots in future will be able to transcend these precincts and work side by side humans for the greater good of mankind. We developed a face robot for this purpose. However, Life like robots demands a certain level of intelligence. Some scientists have proposed an event based learning approach, in which the robot can be taken as a small child and through learning from surrounding entities develops its own personality. In fact some scientists have proposed an entire new personality of the robot itself in which robot can have its own internal states, intentions, beliefs, desires and feelings. Our approach should not only be to develop a robot personality model but also to understand human behavior and incorporate it into the robot model. Human's personality is very complex and rests on many factors like its physical surrounding, its social surrounding, and internal states and beliefs etc. This paper discusses the development of this platform to evaluate this and develop a standard by a society based approach including the cultural paradigm. For this purpose the fuzzy control theory is used. Since the fuzzy theory is very near human analytical thinking it provides a very good platform to develop such a model.

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Mianorm-based Logics with right and left n-potency axioms (좌 우, n-멱등 공리를 갖는 미아놈 논리)

  • Yang, Eunsuk
    • Korean Journal of Logic
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    • v.23 no.1
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    • pp.1-23
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    • 2020
  • This paper deals with mianorm-based logics with right and left n-potency axioms and their fixpointed involutive extensions. For this, first, right and left n-potent logic systems based on mianorms, their corresponding algebraic structures, and their algebraic completeness results are discussed. Next, completeness with respect to algebras whose lattice reduct is [0, 1], known as standard completeness, is established for these systems via Yang's construction in the style of Jenei-Montagna. Finally, further standard completeness results are introduced for their fixpointed involutive extensions.

A Study of Development and Effectiveness of Eating Habit Teaching Software for Disabilities in Elementary School (초등학교 장애학생의 식생활 지도를 위한 소프트웨어 개발 및 효과 연구)

  • Choi, Seong-Ouk;Wang, Yoo-Jin;Kim, Du-Gyu
    • Journal of Fisheries and Marine Sciences Education
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    • v.24 no.6
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    • pp.884-900
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    • 2012
  • This study put emphasis on improving the quality of lives of the elementary students with disabilities by planning and realizing software for the purpose of teaching eating habits. It tried to develop software which constantly applies and practices contents learned from content systems subordinate to practical subjects. It is mainly consisted of 'cooking and eating' among the content systems of the practical subjects in the basic curriculum. To this end, it chose four modules as their final choices, 'eating various foods, cooking happily, setting the table, and washing the dishes.' Media is in CD-ROM Title form. Macromedia Flash and Macromedia Director were used as authoring tools. Program is basically going along centering on small units. And activities in each topic are composed of thinking, investigating, and organizing order. When we applied the software, developed in this research, to 3 elementary students with disabilities using multiple probe design across subjects, it had positive effects on eating habits related functions of all participants.

A Review on the Reconstruction of Jeonju Eupsung during the early years of King Young-Joe (영조초년(英祖初年)의 전주읍성(全州邑城) 개축공사(改築工事)에 관한 재고찰(再考察))

  • Seo, Chi-Sang;Cho, Hyung-Rai
    • Journal of architectural history
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    • v.16 no.6
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    • pp.27-46
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    • 2007
  • Through reinvestigations of early years of King Young-Joe provincial castles, Jeonju Eupsung, this study seeks to broaden the understanding of castle construction of the later period of Chosun Dynasty. Jeonju Eupsung was established by reform-minded king and his loyalist Cho, Hyun Myung. Their new conceptual framework for reconstruction of Jeonju Eupsung was affected by Yoo, Hyung Won, a realist scholar of 17th century. It is obvious that adopted new administrative systems of financing, building and maintaining of Jeonju Eupsung were based on the his theories of castle. This study demonstrates that Jeonju Eupsung built by Cho, Hyun Myung, during the early years of King Young-Joe were based on those new concepts and systems of the new age. The study shows that the designer of this castle had in mind efficient construction design and execution and effective defense of provincial towns located on flat ground. And, the study explains how those original designer sought higher productivity through greater localization of securing resources and more detailed and improved organization of construction responsibilities. In short, this study seeks to prove that the provincial castles of the early 18th century reflected the new thinking on practicality that was spreading throughout the society of Chosun Dynasty at the time.

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