• Title/Summary/Keyword: Local Context

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Multi-face Detection from Complex Background Using Hierarchical Attention Operators (복잡한 배경에서 계층적 주목 연산자를 이용한 다중 얼굴 검출)

  • 이재근;김복만;서경석;최흥문
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.41 no.6
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    • pp.121-126
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    • 2004
  • An efficient multi face detection technique is proposed based on hierarchical context-free attention operators in which multiple faces are efficiently detected from a noisy and complex background. A noise-tolerant generalized symmetry transform (NTSGT) is applied hierarchically, as a context free attention operator, to the input pyramidal image for the high speed global location of the regions of face candidates (ROFCs) with a single mask. For the face verification, local NTGST is applied within each ROFC to confirm the existence of the detailed facial features. First, by globally applying NTGST which introduces the average pyramid method and focusing to the input image with complex background, ROFCs with recognizable resolution are detected robustly. Morphological operations are applied only to the each detected ROFCs to emphasize the facial features like eyes and lips. Then, eyes are detected by locally appling NTGST to the ROFCs and only faces are detected by verifying the existence of the geometrical features of the faces relatively to the location of eyes. The experimental results show that the proposed method can efficiently detect multiple faces from a noisy or complex background with 93.5% detection rate.

The Health Belief Model - Is it relevant to Korea?

  • Lee, Mi-Kyung;Colin William Binns;Kim, Kong-Hyun
    • Korean Journal of Health Education and Promotion
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    • v.2 no.1
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    • pp.1-19
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    • 2000
  • With rapid economic development, the emphasis of the public health movement in Korea has shifted towards addressing the burden of chronic disease. With this shift in direction comes a greater focus on health behaviour and the need for planning models to assist in lifestyle modification programs. The Health Belief Model (HBM), which originated in the US, has generated more research than any other theoretical approach to describe and predict the health behaviour of individuals. In recent years it has been applied in many different cultures and modifications have been suggested to accommodate different cultures. Given the centrality of language and culture, any attempts to use models of health behaviour developed in a different culture, must be studied and tested for local applicability. The paper reviews the applicability and suitability of the HBM in Korea, in the context of the Korean language and culture. The HBM has been used in Korea for almost three decades. The predictability of the HBM has varied in Korean studies as in other cultures. Overall, this literature review indicates that the HBM has been found applicable in predicting health and illness behaviours by Korean people. However if the HBM is used in a Korean context, the acquisition of health knowledge is an important consideration. Most new knowledge in the health sciences is originally published in English and less frequently in another foreign language. Most health knowledge in Korea is acquired through the media or from health professionals and its acquisition often involves translation from the original. The selection of articles for translation and the accuracy of translation into language acceptable in the Korean culture become important determinants of health knowledge. As such translation becomes an important part of the context of the HBM. In this paper modifications to the HBM are suggested to accommodate the issues of language and knowledge in Korea.

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Texture Image Database Retrieval Using JPEG-2000 Partial Entropy Decoding (JPEG-2000 부분 엔트로피 복호화에 의향 질감 영상 데이터베이스 검색)

  • Park, Ha-Joong;Jung, Ho-Youl
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.32 no.5C
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    • pp.496-512
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    • 2007
  • In this paper, we propose a novel JPEG-2000 compressed image retrieval system using feature vector extracted through partial entropy decoding. Main idea of the proposed method is to utilize the context information that is generated during entropy encoding/decoding. In the framework of JPEG-2000, the context of a current coefficient is determined depending on the pattern of the significance and/or the sign of its neighbors in three bit-plane coding passes and four coding modes. The contexts provide a model for estimating the probability of each symbol to be coded. And they can efficiently describe texture images which have different pattern because they represent the local property of images. In addition, our system can directly search the images in the JPEG-2000 compressed domain without full decompression. Therefore, our proposed scheme can accelerate the work of retrieving images. We create various distortion and similarity image databases using MIT VisTex texture images for simulation. we evaluate the proposed algorithm comparing with the previous ones. Through simulations, we demonstrate that our method achieves good performance in terms of the retrieval accuracy as well as the computational complexity.

The Multi-layered Context of the Ethnic Phenomenon: Focused on the Case of Asella Town, Ethiopia (종족 현상의 다층적 맥락: 에티오피아 아셀라 타운의 사례를 중심으로)

  • Seol, Byung-Soo
    • Cross-Cultural Studies
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    • v.48
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    • pp.253-287
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    • 2017
  • The purpose of this study is to examine the ethnic phenomenon in the multi-layered context, based upon data collected from my fieldwork in Asella Town, Ethiopia. The town has experienced few ethnic conflicts at the collective level because of ecological conditions, the numerical balance between the two major ethnic groups-i.e., the Oromo and the Amhara-, frequent ethnic intermarriages as well as effects of a unique sociocultural practice of 'breast-feeding.' However, despite positive influences of such a practice, the local community has continuously witnessed discrimination and threats by the dominant ethnic group. Most of my informants feel that ethnic intermarriage contributes to: (i) enforcement of bonds among both ethic groups and community members, (ii) acquisition of different ethnic cultures, (iii) cultivation of the spirit of tolerance among people, and (iv) production of the superior second generation that has hybrid/multiple ethnic identities. However, some informants harbor negative attitudes towards ethnic intermarriage because they perceive it as a selfish choice of two parties and damages ethnic identity. Most informants consider ongoing Oromonization as natural, whereas others insist that it should be understood in the context of coercion, superficiality and survival strategy.

Exploring the Spatial Relationships between Environmental Equity and Urban Quality of Life (환경적 형평성과 도시 삶의 질의 공간적 관계에 대한 탐색)

  • Jun, Byong-Woon
    • Journal of the Korean Association of Geographic Information Studies
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    • v.14 no.3
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    • pp.223-235
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    • 2011
  • Although ordinary least squares (OLS) regression analysis can be used to examine the spatial relationships between environmental equity and urban quality of life, this global method may mask the local variations in the relationships between them. These geographical variations can not be captured without using local methods. In this context, this paper explores the spatially varying relationships between environmental equity and urban quality of life across the Atlanta metropolitan area by geographically weighted regression (GWR), a local method. Environmental equity and urban quality of life were quantified with an integrated approach of GIS and remote sensing. Results show that generally, there is a negatively significant relationship between them over the Atlanta metropolitan area. The results also suggest that the relationships between environmental equity and urban quality of life vary significantly over space and the GWR (local) model is a significant improvement on the OLS (global) model for the Atlanta metropolitan area.

Railway Object Recognition Using Mobile Laser Scanning Data (모바일 레이저 스캐닝 데이터로부터 철도 시설물 인식에 관한 연구)

  • Luo, Chao;Jwa, Yoon Seok;Sohn, Gun Ho;Won, Jong Un;Lee, Suk
    • Journal of Korea Society of Industrial Information Systems
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    • v.19 no.2
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    • pp.85-91
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    • 2014
  • The objective of the research is to automatically recognize railway objects from MLS data in which 9 key objects including terrain, track, bed, vegetation, platform, barrier, posts, attachments, powerlines are targeted. The proposed method can be divided into two main sub-steps. First, multi-scale contextual features are extracted to take the advantage of characterizing objects of interest from different geometric levels such as point, line, volumetric and vertical profile. Second, by considering contextual interactions amongst object labels, a contextual classifier is utilized to make a prediction with local coherence. In here, the Conditional Random Field (CRF) is used to incorporate the object context. By maximizing the object label agreement in the local neighborhood, CRF model could compensate the local inconsistency prediction resulting from other local classifiers. The performance of proposed method was evaluated based on the analysis of commission and omission error and shows promising results for the practical use.

Ecotourism Service Design Process and Methodology (생태관광 서비스디자인 프로세스 및 방법론 연구)

  • Nam, You-Seon;Ha, Kwang-Soo
    • The Journal of the Korea Contents Association
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    • v.19 no.9
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    • pp.376-387
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    • 2019
  • The role of local decentralization and balanced regional development becomes important due to the concentration of population due to urbanization, and the development of tourism contents in local governments is actively being attempted. However, this is largely due to quantitative growth, and it does not offer tourist content that offers a different experience while utilizing regional characteristics. This means that it is important to develop programs and contents that emphasize the identity of the region by cultivating local characteristics and build a different image. However, most of the small regions where characteristic resources are difficult to find have a problem that it is difficult to develop different programs and contents due to relatively few development opportunities and financial constraints. In this study, it was considered that it is effective to analyze characteristic features of the region and utilize the possessed assets as much as possible. Therefore, we propose a service design process that effectively supports ecotourism, one of the regional revitalization plan using local eco - assets. In the process, Venn Diagram Position and Context Map methodology was developed and verified through Sutonggol Observation Path.

The Community Narrative Ethics of China·Taiwan Film - concentrate on Globalization and Locality - (중국·대만 영화의 공동체 서사윤리 - 세계화와 로컬리티의 문제를 중심으로 -)

  • Choi, Yong-Seong
    • Journal of Ethics
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    • no.84
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    • pp.243-274
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    • 2012
  • The purpose of this study is to study the community narrative ethics of China·Taiwan film. in the context of globalization and locality. I especially wish to look this part through narrative·hermenutical approach and communitarian ethics against contemporary liberalism and individualism. In particular, this article focuses on the works of Hou Hsiao-Hsien, Zhang Yimou, Lee Ang, Tsai Ming-Liang, Chang Tso-chi and Chen Kaige. China and Taiwan's main directors show family and country's community narratives through the self understanding and identification that we call narrative conception of the self. The idea of local community and identity is related with inheritances, history and tradition from the past of my family, my city, my tribe, my nation. Main directors make and have the story of those communities which I derive my identity. And community narratives from the life histories that define us form local community's solidarity should have the openness to other communities. Community narratives shouldn't be separated from the aspect of globalization and locality. After all, I examined whether the local community narratives reveals meaningfully from the standpoint of globalization and locality through China·Taiwan film.

Personalized Service Recommendation for Mobile Edge Computing Environment (모바일 엣지 컴퓨팅 환경에서의 개인화 서비스 추천)

  • Yim, Jong-choul;Kim, Sang-ha;Keum, Chang-sup
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.42 no.5
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    • pp.1009-1019
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    • 2017
  • Mobile Edge Computing(MEC) is a emerging technology to cope with mobile traffic explosion and to provide a variety of services having specific requirements by means of running some functions at mobile edge nodes directly. For instance, caching function can be executed in order to offload mobile traffics, and safety services using real time video analytics can be delivered to users. So far, a myriad of methods and architectures for personalized service recommendation have been proposed, but there is no study on the subject which takes unique characteristics of mobile edge computing into account. To provide personalized services, acquiring users' context is of great significance. If the conventional personalized service model, which is server-side oriented, is applied to the mobile edge computing scheme, it may cause context isolation and privacy issues more severely. There are some advantages at mobile edge node with respect to context acquisition. Another notable characteristic at MEC scheme is that interaction between users and applications is very dynamic due to temporal relation. This paper proposes the local service recommendation platform architecture which encompasses these characteristics, and also discusses the personalized service recommendation mechanism to be able to mitigate context isolation problem and privacy issues.

The Role of Local Government in Building Regional Innovation System (지역혁신체제 구축과 지방정부의 과제)

  • Lee, Chul-Woo
    • Journal of the Korean association of regional geographers
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    • v.10 no.1
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    • pp.9-22
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    • 2004
  • This paper aims to identify the role of local governments in building regional innovation system. The central government has recently decided to support the promotion of innovation capacities of local innovators and innovation networks among thor The central government forces local governments to establish the council for regional innovation in order to implement these goals. Meanwhile, there is no consensus about the way in which the council for regional innovations constitute and operate. I think it is the time for us to talk about this seriously. It is widely conceived that local governments in Korea have still been hierarchical. Thus, they would be difficult to make the decision effectively on regional innovation and development initiatives. In this context, I suggest that the regional innovation promoting agency needs to take authorities to secure transparency and autonomy in planning, implementing, evaluating regional innovation initiatives. The local government no! ed to play a central role in establishing the agency. However, the local government should not try to intervene and control its operations.

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