• 한국건축시공학회지
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• 제5권3호
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• pp.83-90
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• 2005

Was used at step space-time mainly after VE technique sponsors in domestic in the 1960s but have been expanded to design step recently. Possibility of value elevation or cost reduction must choose member that is effectively for active and effective application of VE technique. In this study, when enforce design VE examining for weight decision corrosion protection been using in weight grant composition estimation technique, target choice process wishes to suggest formality and method that can be achieved effectively Main conclusion of this study sorts valuation items step by step for weight appropriation of valuation basis and give point on article of high position point after expert which employer is included estimates article by low rank step and this presented high position method that do union item by item and establishes by item weight. Did these techniques for giving weights so that importance for weight appropriation developed estimation program, and data save of target estimation standard and target estimation standard is possible using straight sit.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2005년도 춘계 학술기술논문발표대회 논문집
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• pp.149-155
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• 2005

Was used at step space-time mainly after VE technique sponsors in domestic in the 1960s but have been expanded to design step recently. Possibility of value elevation or cost reduction must choose member that is effectively for active and effective application of VE technique. In this study, when enforce design VE examining for weight decision corrosion protection been using in weight grant composition estimation technique, target choice process wishes to suggest formality and method that can be achieved effectively. Main conclusion of this study sorts valuation items step by step for weight appropriation of valuation basis and give point on article of high position point after expert which employer is included estimates article by low rank step and this presented high position method that do union itembyitemandestablishesbyitemweight. Did these techniques for giving weights so that importance for weight appropriation developed estimation program, and data save of target estimation standard and target estimation standard is possible using straight sit.

• 정보관리학회지
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• 제30권3호
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• pp.229-247
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• 2013

본 연구는 대학도서관에서 주제전문사서제에 의한 도서선정의 효과를 입증하기 위하여 주제전문사서제도가 도입되기 이전과 이후에 선정된 개별 도서에 대한 대출 현황을 조사하여 그 효과성의 차이를 분석하였다. 이를 위하여 조사대상이 된 S대학교 도서관에서 주제전문사서제도를 도입한 2005년 9월을 기점으로 이전과 이후 3년씩 총 6년 동안에 선정된 도서 186,435권에 대한 총 대출 현황(622,213권)을 t-test와 ANOVA를 통하여 검정하였다. 연구 결과, 첫째, 주제전문사서제의 도입 이후에는 사서에 의한 도서선정의 비율이 높아졌다. 둘째, 주제전문사서제의 도입 이전과 비교하여 도입 이후에는 교수와 사서에 의해 선정된 국외서에 대한 대출이 유의미하게 증가하였다. 셋째, 주제전문사서제의 도입 이전과 비교하여 도입 이후에는 교수가 선정한 도서에 대한 대출 횟수가 유의미하게 증가한 학문분야가 많아진 반면, 학생이 선정한 도서는 대출횟수가 유의미하게 감소한 분야가 많았다.

• 정보관리학회지
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• 제39권1호
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• pp.69-90
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• 2022

국내 학술연구의 동향을 구체적으로 파악하여 연구개발 활동의 체계적인 지원 및 평가는 물론 현재와 미래의 연구 방향을 설정할 수 있는 기초 데이터로서, 개별 학술지 논문에 표준화된 주제 범주(통제키워드)를 부여할 수 있는 효율적인 방안을 모색하였다. 이를 위해 한국연구재단 「학술연구분야분류표」 상의 분류 범주를 국내학술지 논문에 자동 할당하는 과정에서, 자질선정 기법을 중심으로 자동분류의 성능에 영향을 미치는 주요 요소들에 대한 다각적인 실험을 수행하였다. 그 결과, 실제 환경의 불균형 데이터세트(imbalanced dataset)인 국내 학술지 논문의 자동분류에서는 보다 단순한 분류기와 자질선정 기법, 그리고 비교적 소규모의 학습집합을 사용하여 상당히 좋은 수준의 성능을 기대할 수 있는 것으로 나타났다.

• 정보기술과데이타베이스저널
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• 제7권2호
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• pp.47-59
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• 2000

In this paper, we analyze the applicability of a general optimization algorithm to a database optimization problem. The index selection problem Is the problem to choose a set of indexes for a database in a way that the cost to process queries in the given workload is minimized subject to a given storage space restriction for storing indexes. The problem is well known in database research fields, and many optimization and/or heuristic algorithms have been proposed. Our work differs from previous research in that we formalize the problem in the form of non-linear Integer Programming model, and investigate the feasibility and applicability of a general purpose optimization algorithm, called OPBDP, through experiments. We implemented algorithms to generate workload data sets and problem instances for the experiment. The OPBDP algorithm, which is a non-linear 0-1 Integer Programming problem solver based on Davis-Putnam method, worked generally well for our problem formulation. The experiment result showed various performance characteristics depending on the types of decision variables, variable navigation methods and ocher algorithm parameters, and indicates the need of further study on the exploitation of the general purpose optimization techniques for the optimization problems in database area.

• Journal of Information Processing Systems
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• 제15권3호
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• pp.500-519
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• 2019

The blooming of social media has simulated interest in sentiment analysis. Sentiment analysis aims to determine from a specific piece of content the overall attitude of its author in relation to a specific item, product, brand, or service. In sentiment analysis, the focus is on the subjective sentences. Hence, in order to discover and extract the subjective information from a given text, researchers have applied various methods in computational linguistics, natural language processing, and text analysis. The aim of this paper is to provide an in-depth up-to-date study of the sentiment analysis algorithms in order to familiarize with other works done in the subject. The paper focuses on the main tasks and applications of sentiment analysis. State-of-the-art algorithms, methodologies and techniques have been categorized and summarized to facilitate future research in this field.

• 전기학회논문지
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• 제65권12호
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• pp.1965-1970
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• 2016

This paper studies generator rescheduling technique for congestion management in power system with wind farms. The proposed technique is formulated to minimize the rescheduling cost of conventional and wind generators to alleviate congestion subject to operational line overloading. The generator rescheduling method has been used with incorporation of wind farms in the power system. The locations of wind farms are selected based upon power transfer distribution factor (PTDF). Because all generators in the system do not need to participate in congestion management, the rescheduling has been done by generator selection based on the proposed generator sensitivity factor (GSF). The selected generators have been rescheduled using linear programming(LP) optimization techniques to alleviate transmission congestion. The effectiveness of the proposed methodology has been analyzed on IEEE 14-bus systems.

• 한국엔터테인먼트산업학회논문지
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• 제14권3호
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• pp.83-91
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• 2020

이 연구의 목적은 간호대학생을 위한 창의성 기반 창의융합교과목을 개발하는 것이다. 연구의 목적을 위해 Bobbitt의 교육과정 개발 모형에 의해 요구분석, 교육목표 설정, 교육목표 세분화, 교육내용 선정 및 조직의 과정을 거쳐 교과목 내용을 선정하고 전문가의 타당도 검증과정을 거쳐 창의융합교과목을 개발하였다. 창의융합교과목은 이론적 검토를 통해 창의성을 중심으로 다른 분야와 융합하는 교육내용을 구성하였으며 2학점의 교양교과목으로 제시하였고, 교육방법으로서 블랜디드 러닝을 활용한 온라인 수업과 팀별활동 중심의 오프라인 수업을 제시하였다. 또한, 교과과정을 이해, 적용, 종합·심화로 구분하여 학생들이 창의 융합적 사고의 개념을 이해하고 사고기법 및 전략학습 과정을 통해 적용하고 팀별 프로젝트를 통해 창의융합적 사고력을 향상할 수 있도록 하였다.

• 대한통합의학회지
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• 제9권1호
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• pp.173-181
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• 2021

Purpose : The purpose of this study is to compare muscle activity after applying two muscle energy techniques (MET) to subjects with forward head posture to see if the post isometric relaxation (PIR) technique is more effective than the reciprocal inhibition (RI) technique. Methods : The muscle activity was measured using EMG after applying the PIR and RI techniques to 30 adults at K College. Subjects were selected for forward head posture whose ear center was 2.5 ㎝ front of the center of the shoulder. EMG equipment was used to measure muscle activity, and the measurement sites were measured in cervical flexor and extensor muscles. The experiment period was performed once a week for a total of two weeks, and after the pre-measurement was performed for 5 minutes PIR and RI exercise. In the PIR technique, the head is tilted back in a sitting position, and the experimenter applies resistance with the same force for 7~10 seconds and repeats 3-5 times after rest. In the RI technique, in a sitting position, the subject gives the force to bend the head forward, and the experimenter applies resistance with the same force for 7 to 10 seconds, and repeats 3 to 5 times after rest. Results : The result is same as the following. In the comparison of muscle activity, there was a significant decrease in both PIR and RI at 1 and 2 weeks. And there was a greater decrease in muscle activity in PIR. There was no difference in the comparison of decrease in muscle activity at 1 week and 2 week. Conclusion : Both PRI and RI can be said to be effective in improving the function of the forward head posture in the neck muscles. Therefore, the selection of the two techniques in clinical practice should be appropriately performed under the judgment of experts according to the patient's situation.

• 한국과학교육학회지
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• 제12권1호
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• pp.103-118
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• 1992

Quality control of science teachers seems to be one of the most important tasks to improve the quality of science education in Korea. The purposes of this study, as a survey, were to identify characteristics of good science teachers and to make an outline of preservice teacher education curriculum for cultivating the characteristics from inserivce secondary science teachers. A questionnaire was developed for this study and distributed to 176 inservice teachers. It had three parts: 1) characteristics of good science teachers, 2) weights of preservice curriclum areas, and 3) weights of college courses. The means and standard deviations of teachers' responses were calculated. To test the differences between teacher variables, t-tests were executed. The inservice teachers perceived that the junior-high school teacher's characteristics should be different from the senior-high school teacher's. Characteristics, such as enthusiasm toward teaching or students, subject knowledge, content selection and organizing skill, teaching techniques, and scientific worldview were ranked within top five of good science teacher's chracteristics. The teachers' perception about preservice curriculum were as follows: 1) present weight of liberal arts area should be reduced: 2) weight of content area for junior-high school teachers should be different from that for senior-high school teachers: 3) present weight of pedagogy area should be increased: 4) present weight of science education area should be increased: and 5) many courses in pedagogy and sciencd education areas need to be changed, Based on the data and disussion, a conceptual model for preservice teacher education curriculum was proposed.