• 제목/요약/키워드: qualitative features

검색결과 318건 처리시간 0.024초

지역사회 사회자본 척도 개발을 위한 질적연구 - 지역사회복지네트워크를 중심으로 - (The Qualitative Study on the Development of Social Capital Scale in Community - Focused on Community Welfare Network -)

  • 최종혁;안태숙;이은희
    • 한국사회복지학
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    • 제62권4호
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    • pp.297-324
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    • 2010
  • 본 연구는 최근 우리나라에서 다양한 형태로 펼쳐지고 있는 지역사회복지네트워크를 대상으로 한국적 특성에 맞는 사회자본 척도를 개발하는데 있다. 이를 위해 문헌연구와 심층인터뷰를 통한 질적 분석으로 신뢰, 규범, 네트워크와 관련된 개념들을 도출하였다. 도출한 개념은 양적 측정지표 문항으로 전환, 선행 사회자본 측정지표와의 비교분석, 전문가집단의 문항내용 검토와 예비조사를 통해 총 90개의 예비문항으로 개발되었다. 본조사를 통해 최종적으로 확정된 지표는 총 79개 문항으로 신뢰 30개, 규범 22개, 네트워크 27개로 구성되었다. 각 영역에 대한 Cronbach's Alpha 값은 신뢰 .948, 규범 .899, 네트워크 .906으로 높은 신뢰도를 나타냈다. 또한 탐색적 요인분석에 의해 추출된 요인들과 질적연구에서 도출된 신뢰, 규범, 네트워크 영역별 범주와의 연결에 있어서도 양호하게 연결되었다. 본 연구에서 개발된 지역사회 사회자본 척도는 지역사회복지네트워크의 운영 실태에 대한 객관적 파악 및 이를 통해 지역사회복지네트워크의 활성화를 위한 효율적인 방안마련이 가능할 것으로 본다.

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Anatomy and Morphology of Two Hawaiian Endemic Portulaca Species

  • Kim, InSun
    • Applied Microscopy
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    • 제44권2호
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    • pp.41-46
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    • 2014
  • In this study, the vegetative and reproductive morphology and anatomy of two Hawaiian endemic Portulaca species were examined. Specifically, P. molokiniensis and P. sclerocarpa were compared to closely related species in the genus. The comparisons were both qualitative and quantitative, using characteristics of leaves, stems, roots, and fruits. Tissue organizations of vegetative and reproductive parts of the plants were assessed using microtechnique procedures, statistical analysis, and scanning electron microscopy. The most notable features of these two species were (1) the size and frequency of stomata in P. molokiniensis, and (2) the large number of sclerenchymatous cell layers in the thickest fruit walls of P. sclerocarpa. These findings may imply that stomata development in P. molokiniensis and thick fruit wall development in P. sclerocarpa are evolved features of survival. In particular, the development of thickened walls in indehiscent fruits likely has evolutionary implications of ecological tolerance for better adaptation.

고기능 자폐아의 의사소통 결함 연구 (A Study on Communicative Deficits in High-Functioning Autistic Children)

  • 하영례
    • 수산해양교육연구
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    • 제18권2호
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    • pp.122-136
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    • 2006
  • The purpose of this study is to explore the features and features of causes of communicative deficits in high-functioning autistic children in order to intervene educational programs. When communicating with others, high-functioning autistic children have difficulties in the aspects of syntax and semantics, especially pragmatics. These causes of communicative deficits of high-functioning autistic children can be explained respectively by theory of mind, executive function, and central coherence theory. According to theory of mind, qualitative impairment of interaction and communication accounts for communicative deficits. Executive function argues that communicative deficits of high-functioning autistic children be caused by limited concern. Central coherence theory suggests that communicative deficits be caused by the inappropriate integration of cues. Considering these causes of communicative deficits in high-functioning autistic children, we proposed educational strategies order to intervene educational programs.

Domain Shift 문제를 해결하기 위해 안개 특징을 이용한 딥러닝 기반 안개 제거 방법 (Deep learning-based de-fogging method using fog features to solve the domain shift problem)

  • 심휘보;강봉순
    • 한국멀티미디어학회논문지
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    • 제24권10호
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    • pp.1319-1325
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    • 2021
  • It is important to remove fog for accurate object recognition and detection during preprocessing because images taken in foggy adverse weather suffer from poor quality of images due to scattering and absorption of light, resulting in poor performance of various vision-based applications. This paper proposes an end-to-end deep learning-based single image de-fogging method using U-Net architecture. The loss function used in the algorithm is a loss function based on Mahalanobis distance with fog features, which solves the problem of domain shifts, and demonstrates superior performance by comparing qualitative and quantitative numerical evaluations with conventional methods. We also design it to generate fog through the VGG19 loss function and use it as the next training dataset.

Understanding postal delivery areas in the Republic of Korea using multiple unsupervised learning approaches

  • Han, Keejun;Yu, Yeongwoong;Na, Dong-gil;Jung, Hoon;Heo, Younggyo;Jeong, Hyeoncheol;Yun, Sunguk;Kim, Jungeun
    • ETRI Journal
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    • 제44권2호
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    • pp.232-243
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    • 2022
  • Changes in household composition and the residential environment have had a considerable impact on the features of postal delivery regions in recent years, resulting in a large increase in the overall workload of domestic postal delivery services. In this paper, we provide complex analysis results for postal delivery areas using various unsupervised learning approaches. First, we extract highly influential features using several feature-engineering methods. Then, using quantitative and qualitative cluster analyses, we find the distinctive traits and semantics of postal delivery zones. Unsupervised learning approaches are useful for successfully grouping postal service zones, according to our findings. Furthermore, by comparing a postal delivery region to other areas in the same group, workload balancing was achieved.

소셜 네트워크 리소스(Social Network Resource)의 적용과 활용 -공간적 의미의 변화를 중심으로- (Application and Utilization of Social Network Resource: Concentrated on Changes of Spatial Meaning)

  • 이병민
    • 한국경제지리학회지
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    • 제16권1호
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    • pp.50-70
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    • 2013
  • 창조경제 새로운 패러다임의 변화는 사회적 관계의 변화에 영향을 끼치고 있으며, 소셜 네트워크 서비스 등의 발전에 따라 나타나는 새로운 관계의 공간적 특성에도 영향을 끼치고 있다. 본 논문에서는 이러한 변화에 영향을 미치는 동력을 '소셜 네트워크 리소스(social network resource)'로 명명하고, 그에 따라 나타나는 제반 특징과 경제지리학적 관점에서의 공간적 특성을 설명하고자 하였다. '소셜 네트워크 리소스'는 개방성과 공유, 참여, 협력의 특징을 보여주는 동시에, 공간적으로는 로컬과 글로벌의 특징을 모두 아우르는 소위 '트랜스 로컬리티'의 특성을 보이고 있는데, 서울시의 사회적 지식공유 웹 플랫폼인 '위키서울닷컴'의 사례를 통해 그러한 특성을 확인할 수 있었다. 특히, 물리적자원, 인적자원, 정보자원의 특성과 함께 관계자원으로서의 특징이 모두 나타나고 있으며, 이러한 특징에 공간이 투영되어, 사회적 관계가 공간에 표출되는 질적 공간의 특성 또한 나타남을 확인할 수 있었다.

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20세기 여자 테니스웨어의 시대별 디자인 특성 고찰 (A Decade by Decade Exploration of Design Features of Women's Tennis Wear in the Twentieth Century)

  • 박신미;이재정
    • 복식
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    • 제60권4호
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    • pp.126-145
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    • 2010
  • The purpose of this research is to classify the design features of twentieth century women's tennis wear. The specific research questions are; how tennis has developed and what is the relationship between tennis wear and modern dress? What are the important developments in women's tennis wear design in the twentieth century? What are the characteristics exhibited in each decade in women's tennis dress? This paper conducted current research by considering the women's tennis wear as a background of dress simplification. Forty pictures showing tennis wear from international tennis games' catalogues and literatures were selected for this study. Researchers employed a qualitative research method providing a systematic review of the previous studies analyzed by content. The results show that sportswear has become an important trend in contemporary fashion. Tennis wear also had influence on modern dress. Current development is concentrated on functional new materials and sports marketing.

Study on Corporate Governance in Emerging Markets: A Focus on Compliance of South African and South Korean Listed Companies

  • Ahialey, Joseph Kwaku;Kang, Ho-Jung
    • Journal of Korea Trade
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    • 제23권6호
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    • pp.93-112
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    • 2019
  • Purpose - First, this study contextually examines the governance codes of South Africa and South Korea. Second, it analyzes board features of South African (JSE) Mainboard and South Korean (KRX) KOSPI-listed companies. Design/methodology - This review is qualitative and uses data from the annual reports of the selected markets' companies, respective exchanges' official web sites and corporate governance-related web sites in order to examine the corporate governance practices in the two markets. In addition, Nvivo is employed in analyzing the content of the corporate governance codes of the selected countries. Findings - Our analysis indicates that the corporate governance codes of the two countries are evolving to keep up with the international trend of principles-based approach. The composition of the board of directors (BODs) of non-financial companies of both South Africa and South Korea shows no significant variation between the companies with regards to the executive (inside) and nonexecutive (outside) directors. On the contrary, there is a significant variation between South African and South Korean listed companies with respect to diversity. Originality/value - While previous studies are centered on the impact of governance codes on performance, this study intends to contextually evaluate the codes and features of South Africa and South Korea listed companies. This is essential and timely for regulators and policy makers given the importance of corporate governance features such as board independence and diversity in recent times.

Pixel-Wise Polynomial Estimation Model for Low-Light Image Enhancement

  • Muhammad Tahir Rasheed;Daming Shi
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제17권9호
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    • pp.2483-2504
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    • 2023
  • Most existing low-light enhancement algorithms either use a large number of training parameters or lack generalization to real-world scenarios. This paper presents a novel lightweight and robust pixel-wise polynomial approximation-based deep network for low-light image enhancement. For mapping the low-light image to the enhanced image, pixel-wise higher-order polynomials are employed. A deep convolution network is used to estimate the coefficients of these higher-order polynomials. The proposed network uses multiple branches to estimate pixel values based on different receptive fields. With a smaller receptive field, the first branch enhanced local features, the second and third branches focused on medium-level features, and the last branch enhanced global features. The low-light image is downsampled by the factor of 2b-1 (b is the branch number) and fed as input to each branch. After combining the outputs of each branch, the final enhanced image is obtained. A comprehensive evaluation of our proposed network on six publicly available no-reference test datasets shows that it outperforms state-of-the-art methods on both quantitative and qualitative measures.

폭소노미에 따른 웹 분류 연구 - 이용자 태깅 행위 분석을 중심으로 - (A Qualitative Exploration of Folksonomy Users' Tagging Behaviors)

  • 박희진
    • 한국문헌정보학회지
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    • 제45권1호
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    • pp.189-210
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    • 2011
  • 본 연구는 실제 폭소노미를 사용하는 참여자의 태깅 경험, 태깅과 폭소노미에 대한 인식을 파악하며, 폭소노미에 따른 웹 분류의 의미에 대해 탐구하고자 한다. 세 개의 폭소노미 시스템 Connotea, CiteULike, Delicious의 12명 참여자와 함께 정성적 연구의 틀 내에서 웹 설문, 인터뷰, 일기연구를 수행하였다. 참여자들의 태깅 행위를 이루는 기본구성요소를 파악하고, 태깅활동에 참여하게 되는 동기와 그 태깅동기들이 참여자들이 사용하는 태그에 어떻게 반영되는지를 조사하였다. 또한 정보탐색(information foraging) 이론을 적용하여 참여자들이 태깅을 통해 참여하는 사회성과 상호작용성에 대한 경험과 인식을 분석하고, 정보냄새로서의 태그에 대하여 논의하였다. 이용자 참여를 기반으로 하는 본 연구의 실증적 연구결과들은 폭소노미를 활용한 웹 정보서비스를 다양한 각도에서 이해하는데 도움을 주고, 웹 정보자원의 분류와 조직에 있어서 폭소노미의 유용화를 연구하는 개념적 틀을 제시함으로써 폭소노미 현상의 연구 향상에 기여할 수 있을 것으로 기대한다.