• Title/Summary/Keyword: community networks

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Analysis of Network Chain using Dynamic Convolution Model (동적 확률 재규격화를 이용한 네트워크 연쇄 관계 해석)

  • Lee, Hyungjin;Kim, Taegon;Lee, JeongJae;Suh, Kyo
    • Journal of The Korean Society of Agricultural Engineers
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    • v.56 no.1
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    • pp.11-20
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    • 2014
  • Many classification studies for the community of densely-connected nodes are limited to the comprehensive analysis for detecting the communities in probabilistic networks with nodes and edge of the probabilistic distribution because of the difficulties of the probabilistic operation. This study aims to use convolution method for operating nodes and edge of probabilistic distribution. For the probabilistic hierarchy network with nodes and edges of the probabilistic distribution, the model of this study detects the communities of nodes to make the new probabilistic distribution with two distribution. The results of our model was verified through comparing with Monte-carlo Simulation and other community-detecting methods.

Social Network Analysis using Common Neighborhood Subgraph Density (공통 이웃 그래프 밀도를 사용한 소셜 네트워크 분석)

  • Kang, Yoon-Seop;Choi, Seung-Jin
    • Journal of KIISE:Computing Practices and Letters
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    • v.16 no.4
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    • pp.432-436
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    • 2010
  • Finding communities from network data including social networks can be done by clustering the nodes of the network as densely interconnected groups, where keeping interconnection between groups sparse. To exploit a clustering algorithm for community detection task, we need a well-defined similarity measure between network nodes. In this paper, we propose a new similarity measure named "Common Neighborhood Sub-graph density" and combine the similarity with affinity propagation, which is a recently devised clustering algorithm.

Pointer-Generator Networks for Community Question Answering Summarization (Pointer-Generator Networks를 이용한 cQA 시스템 질문 요약)

  • kim, Won-Woo;Kim, Seon-Hoon;Jang, Heon-Seok;Kang, In-Ho;Park, Kwang-Hyun
    • Annual Conference on Human and Language Technology
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    • 2018.10a
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    • pp.126-131
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    • 2018
  • cQA(Community-based Question Answering) 시스템은 사용자들이 질문을 남기고 답변을 작성하는 시스템이다. cQA는 사용자의 편의를 위해 기존의 축적된 질문을 검색하거나 카테고리로 분류하는 기능을 제공한다. 질문의 길이가 길 경우 검색이나 카테고리 분류의 정확도가 떨어지는 한계가 있는데, 이를 극복하기 위해 cQA 질문을 요약하는 모델을 구축할 필요가 있다. 하지만 이러한 모델을 구축하려면 대량의 요약 데이터를 확보해야 하는 어려움이 존재한다. 본 논문에서는 이러한 어려움을 극복하기 위해 cQA의 질문 제목, 본문으로 데이터를 확보하고 필터링을 통해 요약 데이터 셋을 만들었다. 또한 본문의 대표 단어를 이용하여 추상 요약을 하기 위해 딥러닝 기반의 Pointer-generator model을 사용하였다. 실험 결과, 기존의 추출 요약 방식보다 딥러닝 기반의 추상 요약 방식의 성능이 더 좋았으며 Pointer-generator model이 보다 좋은 성능을 보였다.

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The Formation of Social Capital in Korean Village - Experience of Saemaul Undong in the 1970s - (한국 마을단위 사회적 자본의 형성 -1970년대 새마을운동의 경험-)

  • Lee, Misook
    • Journal of Agricultural Extension & Community Development
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    • v.24 no.3
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    • pp.199-209
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    • 2017
  • This research started from the perspective that dynamics of the Saemaul Undong in the village which is a unit of saemaul development is the formation of social capital. The subjects of this research are 122 success village stories of Saemaul Undong in 1970~1979. Through the content analysis, it extracted the social capital elements in the Saemaul Undong practice process and analyzed their characteristics. As a result of the research, it was confirmed that the formation and utilization of internal and external networks, which are structural capital, actively developed. Saemaul Undong contributed to formation and strengthening of relational capital such as trust and norms. This will be used as a basic data for research on Saemaul Undong, and it can be used as an index of the participation of villagers in rural development strategy of developing countries.

Mechanisms of Competition betxeen Canopy-Forming and Turf-Forming Intertidal Algae

  • Kim, Jeong-Ha
    • ALGAE
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    • v.17 no.1
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    • pp.33-39
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    • 2002
  • Mechanisms of competition between two canopy algae and an understory alga were investigated by a field manipulative experiment using artificial thalli. The study was carried out in the upper intertidal zone at Nudibranch Point in Vancouver Island, British Columbia, Canada, where two fucoids, Fucus gardneri and Pelvetiopsis limitata, and a turf red alga, Mazzaella cornucopiae, were dominant in the algal community. The experiment was designed to test three hypotheses, shading, whiplash, and allelopathy, imposed by potential fucoid effects on M. cornucopiae. Only the shading effect was significant, indicating that adult fucoid thalli reduced. M. cornucopiae biomass underneath the fucoids. Results indicated that reversal of competitive dominance existed between F. gardneri and M. cornucopiae depending on the life history stage of the competitors. By including the turf alga's effects on the fucoids, the well-balanced and non-hierarchical interaction networks among the major macroalgae support the high likelihood of species coexistence in the community.

Social Capital in Mangrove Management: A Case Study in Lampung Province, Indonesia

  • Qurniati, Rommy;Hidayat, Wahyu;Kaskoyo, Hari;Firdasari, Firdasari;Inoue, Makoto
    • Journal of Forest and Environmental Science
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    • v.33 no.1
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    • pp.8-21
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    • 2017
  • The objective of this study is to identify the individual characteristics and the elements of social capital hence a suitable design of social capital reinforcement can be proposed to promote a sustainable community-based mangrove management. The research conducted in three villages that were selected based on mangrove ecological differences in Lampung Province, Indonesia. Qualitative data was collected through field observation and in-depth interviews with key informants. The results showed that the population in the three villages dominated on productive ages, worked as farmers, and less educated (only a half of the population had fulfilled the basic education standard of Indonesia). The study results also indicated that the social capital in the communities showed minimum condition of interpersonal attachment and cooperation. This condition was derived from the attitude of the people who only took personal benefit without concerning to others' welfare. Many programs conducted by government to ensure the conservation of mangroves were project-oriented with minor participation of community. The minor participation might also contributed to the minimum of social capital in the community. To improve social capital, the communities should strengthen mutual trust based on mutual benefit to increase members' participation in mangrove activity.

A Web-Based IPTV Content Syndication System for Personalized Content Guide

  • Yang, Jinhong;Park, Hyojin;Lee, Gyu Myoung;Choi, Jun Kyun
    • Journal of Communications and Networks
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    • v.17 no.1
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    • pp.67-74
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    • 2015
  • In this paper, we propose a web-based content syndication system in which users can easily choose Internet protocol television (IPTV) contents. This system generates personalized content guide to provide a list of IPTV contents with respect to users' interests and statistics information of their online social community. For this, IPTV contents and relevant metadata are collected from various sources and transformed. Then, the service and content metadata are processed by user metadata including audience measurement and community metadata. The metadata flows are separated from content flows of transport network. The implementation of IPTV content syndication system demonstrates how to arrange IPTV contents efficiently from content providers to the end user's screen. We also show that the user metadata including online community information are important for the system's performance and the user's satisfaction.

Factors of Depression in Korean-Chinese Elders in the Yanbian Korean Autonomous Prefecture in China: With Reference to Han-Chinese Living in the Yanbian Korean Autonomous Prefecture (중국 연변조선족자치주 조선족 노인의 우울에 미치는 요인: 중국 연변조선족자치주에 거주하는 한족을 준거집단으로 비교)

  • Song, Mei Ling;Park, Kyung Min
    • Research in Community and Public Health Nursing
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    • v.24 no.2
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    • pp.151-160
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    • 2013
  • Purpose: This study was to investigate depression in Korean-Chinese elder living in the Yanbian Korean Autonomous Prefecture in China. Methods: A cross-sectional community-based survey was conducted using face to face private interviews for elders aged over 59, who have been dwelling in the Yanbian Korean Autonomous Prefecture. The samples consisted of 183 Korean-Chinese and 182 Han-Chinese with the latter as a reference group. Data were collected from August 25 to September 20, 2011 and analyzed with the SPSS 18.0 program. The GDS (Geriatric Depression Scale) was used to measure elderly depression in the subjects. Results: In Korean-Chinese, the rate of depression was higher in those who had lower educational levels, and were economically supported by the government. And those who had depression showed lower scores in Chinese language proficiency, health status, and social supports, and had more chronic diseases. Factors having effects on Korean-Chinese elderly depression included perceived health status and subjective support. Conclusion: According to the results, for preventing the depression of Korean-Chinese, it is necessary to develop health management programs and social support networks, which were easy to approach.

A Study on the Patterns of Medical Utilization among Inhabitants in Ulnung Island (울릉도 주민들의 의료이용 형태)

  • Lim, Hyun-Sul;Kim, Doo-Hie
    • Journal of agricultural medicine and community health
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    • v.21 no.2
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    • pp.243-251
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    • 1996
  • Authors surveyed the inhabitants in Ulnung Island to assess the patterns of medical utilization. One hundred eighty six population(65 male and 121 female) were surveyed with formed questionnaire from Aug. 16 to Aug. 19 in 1994. Results are as follows. 1. The prevalence rate of acute diseases was 19.3%. 2. The prevalence rate of chronic diseases was 35.0%. In classification of chronic disease, the disease of musculoscletal system was the highest(33.9%) and that of digestive system in next order. 3. The first-visit medical facility when disease developed was community health center mainly. The admission care was taken in 37.6%. The 80.0% among location of medical facility for admission care was out of island. The surgical operative care were taken in 19.9%. The 86.5% among location of medical facility for surgical operative care was out of island. 4. Among the contents of dissatisfaction for medical service within island, 'Insufficient equipment' was the highest(35.8%), and 'Insufficient traffic networks' in next order. The results of this study suggest that public health facilities and medical personnel be strengthened and emergency transfer system be secured in Ulnung Island.

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Study on factors affecting the intention of knowledge sharing in the electronic network of practice for job examination (온라인 채용시험정보 커뮤니티 내에서 지식공유의도에 영향을 미치는 요인에 관한 연구)

  • Jeon, Hyeon-Gyu;Kim, Min-Yong
    • Knowledge Management Research
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    • v.14 no.2
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    • pp.71-88
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    • 2013
  • The aim of this study was to investigate why people voluntarily contribute knowledge to others, primarily strangers, in the electronic network of practice for job examination expected potential competing. This paper is organized as follows. First, we introduce the electronic network of practice which is the knowledge sharing community for job examination, and discuss the key issues for understanding knowledge sharing in these networks on the basis of individual motivations, relational capital, sense of community, and sense of rivalry to develop a research model for this study. To test the proposed research model, we adopted the survey method for data collection, and examined our hypotheses by applying the multiple regression analysis method to the collected data. Our unit of analysis was the individual. The findings of this study show that the intention of knowledge sharing is influenced by the reputation and the enjoy helping as the factors of individual motivations, by the reciprocity as the factor of relational capital, and by a sense of rivalry as a psychological factor. Lastly, contributions of this study and future research opportunities are also discussed.

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