• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1997.10a
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• pp.97-101
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• 1997

In recent years, there have been a number of applications of fuzzy logic in fuzzy reasoning system. The main objective of these applications is to approximate a decision making using the fuzzy reasoning system. This paper designs a fuzzy reasoning model for the decision making of registration fee at a private school, implements it applying for linguistic variables and fuzzy rules, and evaluates the practical availability of the model. The system accepts fuzzy rules, the type of membership functions, the domain of fuzzy sets and hedge, and fuzzifies the linguistic variables to generates fuzzy sets. The fuzzy sets generated are combined to constructs a solution fuzzy set. Finally, the system defuzzifies the solution fuzzy set to calculate a scalar value which is used for decision making.

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.238-242
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• 1991

This paper presents an approach to self-tuning PI control of dynamic plants, based on fuzzy logic application. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variables of the controller. In the synthesis of a fuzzy logic controller, one of the most difficult problem is the selection of linguistic control rules and parameters. To overcome this difficulty, self-tuning fuzzy PI controller (STFPIC) with a hierarchical structure in which the fuzzy PI controller is assigned as the lower level and the rule modification and parameter adjustment as the higher level. The rules and parameters are generated by the adjustment of membership function through performance index(PE). In this paper, the algorithm for of the controller performance is estimated by means of computer simulation.

• Journal of the Ergonomics Society of Korea
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• v.17 no.3
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• pp.71-80
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• 1998

This study proposed a method to apply certain fuzzy-related Quality control concepts to design customer-oriented products considering user requirements and information starting with the product development stage. This approach showed how to define the importance level of design elements and how to Quantify complex subjective perception of products using the fuzzy linguistic rating method and quality function deployment concepts. Using this approach, various customer requirements could be interpreted and reflected on the early design phase of a new product. To validate the proposed method, an experiment was conducted for designing the shape of the beeper using 14 subjects and 10 commercial beeper products. Front area, width/length ratio, thickness, curve variance, weight, and display area were selected as design elements of the beeper. The results showed that among design elements, front area and weight are significantly related with the subjective perception of the products. Consequently, this study indicates that customer decision on product selection could be made by quantification of user perception for beeper products.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2001.04a
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• pp.202-207
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• 2001

In this paper, it is presented a new technique to the design and real-time implementation of fuzzy control system based-on digital signal processors in order to improve the precision and robustness for system of industrial robot. Fuzzy control has emerged as one of the most active and fruitful areas for research in the applications of fuzzy set theory, especially in the real of industrial processes. In this thesis, a self-organizing fuzzy controller for the industrial robot manipulator with a actuator located at the base is studied. A fuzzy logic composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis of a FLC, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult, SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules.

• MALSORI
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• no.19_20
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• pp.43-57
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• 1990

The teaching of pronunciation is one of the areas in which linguistic phonetics can play an extremely useful role. This paper is concerned with the application of the results of my phonetic research to the actual teaching of Korean standard pronunciation with special reference to speech rhythm. It has been found that Korean words and utterances of various lengths are pronounced in standard Korean with one of the four main rhythmic patterns, each containing a strong stress. Unless we get the rhythmic patterns right in pronouncing Korean words and utterances, therefore, the resulting pronounciation is bound to sound dialectal or incorrect and in many instances even unintelligible to listeners. Hence the undeniable need to devise a useful technique to teach the Korean speech rhythm in a systematic way. In this paper each of the four main rhythmic patterns is presented and elaborated with sample examples taken from the living Korean. It is hoped that these examples of words and utterances can be used at the same time as useful pronunciation drill material not only for Koreans with dialectal background but also for foreign learners of Korean.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
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• 2003.04a
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• pp.327-339
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• 2003

In this paper, a self-organizing fuzzy controller(SOFC) for the industrial robot manipulator with a actuator located at the base is studied A fuzzy login composed of linguistic conditional statements is employed by defining the relations of input-output variable of the controller, In the synthesis of a FLC, one of the most difficult problems is the determination of linguistic control rules from the human operators. To overcome this difficult SOFC is proposed for a hierarchical control structure consisting of basic level and high level that modify control rules. The proposed SOFC scheme is simple in structure, fast in computations and suitable for implementation of real-time control. Performance of the SOFC is illustrated by simulation and experimental results for robot with low joints.

• The Journal of the Acoustical Society of Korea
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• v.16 no.1E
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• pp.64-74
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• 1997

In many decision making systems, rule-based approaches are used to solve complex problems in the areas of pattern analysis and computer vision. In this paper, we present methods for generating fuzzy IF-THEN rules automatically from training data for pattern classification and high-level computer vision. The rules are generated by construction minimal approximate fuzzy aggregation networks and then training the networks using gradient descent methods. The training data that represent features are treated as linguistic variables that appear in the antecedent clauses of the rules. Methods to generate the corresponding linguistic labels(values) and their membership functions are presented. In addition, an inference procedure is employed to deduce conclusions from information presented to our rule-base. Two experimental results involving synthetic and real are given.

• Journal of Agricultural Extension & Community Development
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• v.8 no.1
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• pp.93-105
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• 2001

The purpose of this study was to investigate violences of youth and to develop the prevention in community. The data were collected from 809 middle school students in Seosan city and Taean-gun and were analyzed by SPSSWIN 10.0. The statistical technique used for this study were crosstabs, ANOVA, and frequencies. The results were as following; 1) Youth has suffered from more linguistic violences than physical violences 2) Male youths have undergone linguistic violence and robberies, while female youths haves experienced stepchild, 3) Fitty percentage of youth violence was occurred by acquaintances or students in school 4) Experiences of violences were relative to peer groups. 5) Youths required that violence clubs should be dismissed for reducing school violences.

• English Language & Literature Teaching
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• v.18 no.2
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• pp.107-124
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• 2012

The current research dealt with two areas which have been at the center of attention in the field of second language acquisition (SLA): recasts and intake. Although these two are continuously discussed in many studies, not enough research has addressed how they are related. Hence, the current research sought to identify the relationship between learner intake of language forms delivered in the form of recasts in adult EFL classrooms and learner immediate responses to recasts (i.e., uptake). The data were collected from 11 classrooms. A total of 221 recast episodes were observed and learners' responses to recasts were analyzed. On the basis of the recast episodes, multiple-choice recognition tests were developed and administrated to measure learner intake of the linguistic forms targeted by recasts. The study found that a half of recasts brought about learner intake. In addition, the learners responded to recasts in many different ways and their ways of responding were closely related to their intake of linguistic forms targeted by recasts.

• Annual Conference on Human and Language Technology
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• 2001.10d
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• pp.252-259
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• 2001

의미주석말뭉치는, 문맥에 출현하는 각 어휘의 의미를 특정 사전의 세부의미항목(sense)에 대응시켜 주석함으로써 구축한 말뭉치이다. 이 말뭉치 구축에 있어서의 태그셋은, '연세 한국어 전자사전'의 각 의미기술정보를 기호화하여 사용하였다. 사람에 의한 실제 주석 작업 단계에서, 전자사전 정보의 불완전함 때문에 발생한 문제를 해결함으로써 본래의 사전 정보가 대폭 수정되었다. 즉, 의미 주석 과정에서 문제가 되는 요소에 대한 검토를 통해서 품사 정보, 문법 정보 등을 수정하고 기존 sense를 통합, 추가, 재배열함으로써 기존의 사전 정보를 개선할 수 있었다. 이와 같은 말뭉치와 전자사전, 자연언어 처리 시스템의 활발한 상호 작용을 통해서 언어정보처리 분야 연구의 질적 향상이 가능하다. 나아가, 인간이 직접 판단하여 주석한 대규모의 의미주석말뭉치를 분석하여 응용함으로써 텍스트내의 단어와 전자사전의 세부의미항목을 연결시키는 태거를 개발할 수 있을 것이다.