• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권3호
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• pp.522-538
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• 2013

Content based image retrieval has become an increasingly important research topic for its wide application. It is highly challenging when facing to large-scale database with large variance. The retrieval systems rely on a key component, the predefined or learned similarity measures over images. We note that, the similarity measures can be potential improved if the data distribution information is exploited using a more sophisticated way. In this paper, we propose a similarity measure learning approach for image retrieval. The similarity measure, so called Fisher kernel, is derived from the probabilistic distribution of images and is the function over observed data, hidden variable and model parameters, where the hidden variables encode high level information which are powerful in discrimination and are failed to be exploited in previous methods. We further propose a discriminative learning method for the similarity measure, i.e., encouraging the learned similarity to take a large value for a pair of images with the same label and to take a small value for a pair of images with distinct labels. The learned similarity measure, fully exploiting the data distribution, is well adapted to dataset and would improve the retrieval system. We evaluate the proposed method on Corel-1000, Corel5k, Caltech101 and MIRFlickr 25,000 databases. The results show the competitive performance of the proposed method.

• 교통기술과정책
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• 제13권1호
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• pp.6-14
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• 2016

• Journal of Preventive Medicine and Public Health
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• 제22권4호
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• pp.466-473
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• 1989

• 한국지반공학회지:지반
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• 제38권2호
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• pp.8-29
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• 2022

• 한국응용곤충학회지
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• 제34권1호
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• pp.15-19
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• 1995

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2009년도 학술논문요약집
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• pp.59-60
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• 2009

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2002년도 추계학술발표회요약집
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• pp.327-327
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• 2002

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.157-158
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• 2005

• 대한간호학회지
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• 제29권4호
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• pp.951-962
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• 1999

Today human needs for health promotion and maintenance are increasing. The nursing profession as a great responsibility to develop the knowledge for helping clients to practice good health behavior under self-control. But there are few studies about the concept of self-control, or the operational definition of self-control. The purpose of this study was to analyze and clarify the meaning of the concept of self-control. This study used Walker and Avant's process of concept analysis. Antecedents of self control consist of 1) perception of the conflict situation to change his or her behavior ; 2) perception of self as the causes of the barrier for a certain behavior ; 3) internal standard or belief such as self-efficacy and learned resourcefulness ; 4) internal motivation for change of behavior. Critical attributes of self-control were 1) goal-orientation ; 2) self-decision ; 3) time sequence ; 4) effort ; 5) possibility of being learned ; 6) individuality ; 7) social desirability. Consequences occurring as a results of self-control consist of 1) achievement of the controlled behavior whose purposes were planned ; 2) enhancement of the internal standard such as self-efficacy and learned resourcefulness ; 3) eventual elevation of physical and emotional wellness. Therefore, this concept is defined as a cognitive behavior which is attempted by his or her decision when one is confronted with the conflict situation, which is characterized by being changed by time, learned by effort and individual characteristics. One is taking such behavior with the perception of self as the causative barrier for a certain behavior, planning a specific objective for a certain behavior which demands self sacrifice, supplies the internal reward, is socially desirable with the internal standard of self-efficacy and learned resourcefulness and environmental factors.

• 한국초등수학교육학회지
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• 제17권1호
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• pp.105-128
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• 2013

우리나라 교육과정은 7차 이후 2007, 2009 개정 교육과정을 거치면서 다양한 변화를 모색하고 있다. 본 연구는 그 가운데 초등수학 교과서의 내용 변화에 주목하고 있으며, 특히 초등수학에서 다루어지고 있는 문자와 식에 초점을 맞추고 있다. 문자와 식은 6차 교육과정에서는 '관계' 영역에서, 7차 교육과정에서는 '문자와 식' 영역에서, 그리고 2007 교육과정에서는 '규칙성과 문제해결' 영역에서 다루어져왔다. 특히 7차 교육과정에서는 초등수학에서 문자가 도입되지 않았으나, 6차와 2007년 교육과정에서는 초등수학에서 문자 x의 도입, 등식의 성질, 방정식 등이 다루어지고 있다. 본 연구는 초등수학에서 이러한 변화를 겪고 있는 문자와 식에 대하여 교육과정별 교과서에 제시된 문자와 식의 내용 및 지도 시기, 지도 방법에 대한 분석을 목적으로 한다. 이를 위해 문자 x의 도입, 등식의 지도, 방정식의 지도와 같이 3가지 주제를 구분하고, 이들 각각에서 초등수학을 중심으로 6차 교육과정과 2007년 교육과정을 비교하고, 동시에 그 사이에 놓여 있는 7차 교육과정에서는 중학교 7-가 단계를 살펴보았다. 본 연구는 이를 통해 초등수학에서 문자와 식을 이해하고 지도하는데 기초자료가 될 수 있기를 기대한다.